Electro-thermal Trade-off Analysis for AC-DC Converter with Current Boost Regulator Mike DonnellyDesigner19 × Mike Donnelly Member for 10 years 4 months 1,529 designs 10 groups Title Description <p>This example shows the capability of modeling the electrothermal aspects of power dissipating circuits. The design is a 5V regulator (non-switching), driven from a 120 Vac/60 Hz input and using a transformer/rectifier circuit to step down to a much lower DC-link voltage.</p><p>The load current capability is 5A, which is well above the current limit of the linear regular component itself. This is thanks to the load sharing role of the bypass PNP transistor. The design is based on an example application circuit shown in Figure 11 of the On Semiconductor Datasheet MC7800/D, November 2014 - Rev. 27.</p><p>All of the power dissipating electronics' models are from the "Thermal and Electro-thermal" Components Library. They have a thermal port that connects to the thermal network (i.e. red wires). These models output all the power dissipated in the device as a thermal heat-flow into that network. This includes the rectifier diodes, the linear regulator and the BJT, as well as the current sense resistor and the effective winding resistances of the transformer primary and secondary.</p><p>The thermal network includes the heat-sink's heat capacitance (0.1 J/degC) and heat transfer resistance to the ambient (1 degC/Watt), as well as the datasheet published values for the junction-to-lead thermal resistances of all the active electronic components. An assumed value for the thermal capacitance of the BJT (0.005 J/degC, not provided by the manufacturer) was added for purposes of illustration. Obtaining the actual value would require deeper analysis or measurement of this important component characteristic. However, in this example, both thermal capacitance values were selected solely to give sufficiently fast thermal time constants, so that steady-state operating temperatures could be reached with minimal simulation time.</p><p>This design is based on another shared design:</p><p>"https://www.systemvision.com/design/ac-dc-power-adapter-current-boost-regulator", That design has been modified not only to add the electrothermal aspects, but it was also adjusted to improve its observed thermal performance. For example, the DC-link capacitance (c3) was increased from 4700uF to 22000uF, to allow a reduced DC-link operating voltage (i.e. to improve efficiency) while avoiding regulation drop-out at AC zero-crossings under heavy load conditions.</p> About text formats Tags 5V Regulator, 5AMC7805Belectro-thermal Select a tag from the list or create your own.Drag to re-order taxonomy terms. License - None - What's this? Design Titleby Mike Donnelly × Embed Design Copy Embed Code <iframe allowfullscreen="true" referrerpolicy="origin-when-cross-origin" frameborder="0" width="100%" height="720" scrolling="no" src="https://explore.partquest.com/embed-design/234796"></iframe> Embed Live Design Copy Embed Code <iframe allowfullscreen="true" referrerpolicy="origin-when-cross-origin" frameborder="0" width="100%" height="720" scrolling="no" src="https://explore.partquest.com/node/234796"></iframe> Share a Link Copy URL https://explore.partquest.com/node/234796 AC-DC Power Adapter With Current Boost Regulator DarrellDesigner10 × Darrell Member for 10 years 4 months 624 designs 10 groups Title Description <p>This 5V regulator circuit provides 5A load current capability, well above the current limit of the linear regular component itself. This is thanks to the load sharing role of the bypass PNP transistor. </p><p>The circuit is shown with a household 120 V. AC input, with a transformer and rectifier circuit, attempting to approximate a 12V automotive input voltage level. The design is based on an example application circuit shown in Figure 11 of the On Semiconductor Datasheet MC7800/D, November 2014 - Rev. 27. This executable design can be used to assess line and load transients, efficiency, PSRR vs. Frequency, etc. It can also be used for selecting the peripheral circuit components to achieve the desired performance.</p><p>See also http://www.systemvision.com/design/ac-dc-power-adapter for a lower power level circuit.</p> About text formats Tags 5V Regulator, 5AMC7805Bboost Select a tag from the list or create your own.Drag to re-order taxonomy terms. License - None - What's this? Design Titleby Darrell × Embed Design Copy Embed Code <iframe allowfullscreen="true" referrerpolicy="origin-when-cross-origin" frameborder="0" width="100%" height="720" scrolling="no" src="https://explore.partquest.com/embed-design/9746"></iframe> Embed Live Design Copy Embed Code <iframe allowfullscreen="true" referrerpolicy="origin-when-cross-origin" frameborder="0" width="100%" height="720" scrolling="no" src="https://explore.partquest.com/node/9746"></iframe> Share a Link Copy URL https://explore.partquest.com/node/9746 Current Boost Regulator Mike DonnellyDesigner19 × Mike Donnelly Member for 10 years 4 months 1,529 designs 10 groups Title Description <p>This 5V regulator circuit provides 5A load current capability, well above the current limit of the linear regular component itself. This is thanks to the load sharing role of the bypass PNP transistor. </p><p>The circuit is shown with a 12V automotive input voltage level. The design is based on an example application circuit shown in Figure 11 of the On Semiconductor Datasheet MC7800/D, November 2014 - Rev. 27. This executable design can be used to assess line and load transients, efficiency, PSRR vs. Frequency, etc. It can also be used for selecting the peripheral circuit components to achieve the desired performance.</p> About text formats Tags 5V Regulator, 5AMC7805B Select a tag from the list or create your own.Drag to re-order taxonomy terms. License - None - What's this? Design Titleby Mike Donnelly × Embed Design Copy Embed Code <iframe allowfullscreen="true" referrerpolicy="origin-when-cross-origin" frameborder="0" width="100%" height="720" scrolling="no" src="https://explore.partquest.com/embed-design/591"></iframe> Embed Live Design Copy Embed Code <iframe allowfullscreen="true" referrerpolicy="origin-when-cross-origin" frameborder="0" width="100%" height="720" scrolling="no" src="https://explore.partquest.com/node/591"></iframe> Share a Link Copy URL https://explore.partquest.com/node/591 Copy of Electro-thermal Trade-off Analysis for AC-DC Converter with Current Boost Regulator - on Sun, 01/14/2024 - 17:47 User-1705420952Designer253227 × User-1705420952 Member for 2 months 1 week 1 designs 1 groups Title Description <p>This example shows the capability of modeling the electrothermal aspects of power dissipating circuits. The design is a 5V regulator (non-switching), driven from a 120 Vac/60 Hz input and using a transformer/rectifier circuit to step down to a much lower DC-link voltage.</p> <p>The load current capability is 5A, which is well above the current limit of the linear regular component itself. This is thanks to the load sharing role of the bypass PNP transistor. The design is based on an example application circuit shown in Figure 11 of the On Semiconductor Datasheet MC7800/D, November 2014 - Rev. 27.</p> <p>All of the power dissipating electronics' models are from the "Thermal and Electro-thermal" Components Library. They have a thermal port that connects to the thermal network (i.e. red wires). These models output all the power dissipated in the device as a thermal heat-flow into that network. This includes the rectifier diodes, the linear regulator and the BJT, as well as the current sense resistor and the effective winding resistances of the transformer primary and secondary.</p> <p>The thermal network includes the heat-sink's heat capacitance (0.1 J/degC) and heat transfer resistance to the ambient (1 degC/Watt), as well as the datasheet published values for the junction-to-lead thermal resistances of all the active electronic components. An assumed value for the thermal capacitance of the BJT (0.005 J/degC, not provided by the manufacturer) was added for purposes of illustration. Obtaining the actual value would require deeper analysis or measurement of this important component characteristic. However, in this example, both thermal capacitance values were selected solely to give sufficiently fast thermal time constants, so that steady-state operating temperatures could be reached with minimal simulation time.</p> <p>This design is based on another shared design:</p> <p>"https://www.systemvision.com/design/ac-dc-power-adapter-current-boost-regulator", That design has been modified not only to add the electrothermal aspects, but it was also adjusted to improve its observed thermal performance. For example, the DC-link capacitance (c3) was increased from 4700uF to 22000uF, to allow a reduced DC-link operating voltage (i.e. to improve efficiency) while avoiding regulation drop-out at AC zero-crossings under heavy load conditions.</p> About text formats Tags 5V Regulator, 5AMC7805Belectro-thermal Select a tag from the list or create your own.Drag to re-order taxonomy terms. License - None - What's this? Design Titleby User-1705420952 × Embed Design Copy Embed Code <iframe allowfullscreen="true" referrerpolicy="origin-when-cross-origin" frameborder="0" width="100%" height="720" scrolling="no" src="https://explore.partquest.com/embed-design/630244"></iframe> Embed Live Design Copy Embed Code <iframe allowfullscreen="true" referrerpolicy="origin-when-cross-origin" frameborder="0" width="100%" height="720" scrolling="no" src="https://explore.partquest.com/node/630244"></iframe> Share a Link Copy URL https://explore.partquest.com/node/630244 Copy of Electro-thermal Trade-off Analysis for AC-DC Converter with Current Boost Regulator - on Wed, 11/15/2023 - 15:59 User-1700074806Designer251302 × User-1700074806 Member for 4 months 1 week 2 designs 1 groups Title Description <p>This example shows the capability of modeling the electrothermal aspects of power dissipating circuits. The design is a 5V regulator (non-switching), driven from a 120 Vac/60 Hz input and using a transformer/rectifier circuit to step down to a much lower DC-link voltage.</p> <p>The load current capability is 5A, which is well above the current limit of the linear regular component itself. This is thanks to the load sharing role of the bypass PNP transistor. The design is based on an example application circuit shown in Figure 11 of the On Semiconductor Datasheet MC7800/D, November 2014 - Rev. 27.</p> <p>All of the power dissipating electronics' models are from the "Thermal and Electro-thermal" Components Library. They have a thermal port that connects to the thermal network (i.e. red wires). These models output all the power dissipated in the device as a thermal heat-flow into that network. This includes the rectifier diodes, the linear regulator and the BJT, as well as the current sense resistor and the effective winding resistances of the transformer primary and secondary.</p> <p>The thermal network includes the heat-sink's heat capacitance (0.1 J/degC) and heat transfer resistance to the ambient (1 degC/Watt), as well as the datasheet published values for the junction-to-lead thermal resistances of all the active electronic components. An assumed value for the thermal capacitance of the BJT (0.005 J/degC, not provided by the manufacturer) was added for purposes of illustration. Obtaining the actual value would require deeper analysis or measurement of this important component characteristic. However, in this example, both thermal capacitance values were selected solely to give sufficiently fast thermal time constants, so that steady-state operating temperatures could be reached with minimal simulation time.</p> <p>This design is based on another shared design:</p> <p>"https://www.systemvision.com/design/ac-dc-power-adapter-current-boost-regulator", That design has been modified not only to add the electrothermal aspects, but it was also adjusted to improve its observed thermal performance. For example, the DC-link capacitance (c3) was increased from 4700uF to 22000uF, to allow a reduced DC-link operating voltage (i.e. to improve efficiency) while avoiding regulation drop-out at AC zero-crossings under heavy load conditions.</p> About text formats Tags 5V Regulator, 5AMC7805Belectro-thermal Select a tag from the list or create your own.Drag to re-order taxonomy terms. License - None - What's this? Design Titleby User-1700074806 × Embed Design Copy Embed Code <iframe allowfullscreen="true" referrerpolicy="origin-when-cross-origin" frameborder="0" width="100%" height="720" scrolling="no" src="https://explore.partquest.com/embed-design/620595"></iframe> Embed Live Design Copy Embed Code <iframe allowfullscreen="true" referrerpolicy="origin-when-cross-origin" frameborder="0" width="100%" height="720" scrolling="no" src="https://explore.partquest.com/node/620595"></iframe> Share a Link Copy URL https://explore.partquest.com/node/620595 Copy of AC-DC Power Adapter With Current Boost Regulator - on Tue, 11/07/2023 - 17:28 User-1688571739Designer247180 × User-1688571739 Member for 8 months 3 weeks 6 designs 2 groups Title Description <p>This 5V regulator circuit provides 5A load current capability, well above the current limit of the linear regular component itself. This is thanks to the load sharing role of the bypass PNP transistor.</p> <p>The circuit is shown with a household 120 V. AC input, with a transformer and rectifier circuit, attempting to approximate a 12V automotive input voltage level. The design is based on an example application circuit shown in Figure 11 of the On Semiconductor Datasheet MC7800/D, November 2014 - Rev. 27. This executable design can be used to assess line and load transients, efficiency, PSRR vs. Frequency, etc. It can also be used for selecting the peripheral circuit components to achieve the desired performance.</p> <p>See also http://www.systemvision.com/design/ac-dc-power-adapter for a lower power level circuit.</p> About text formats Tags 5V Regulator, 5AMC7805Bboost Select a tag from the list or create your own.Drag to re-order taxonomy terms. License - None - What's this? Design Titleby User-1688571739 × Embed Design Copy Embed Code <iframe allowfullscreen="true" referrerpolicy="origin-when-cross-origin" frameborder="0" width="100%" height="720" scrolling="no" src="https://explore.partquest.com/embed-design/619487"></iframe> Embed Live Design Copy Embed Code <iframe allowfullscreen="true" referrerpolicy="origin-when-cross-origin" frameborder="0" width="100%" height="720" scrolling="no" src="https://explore.partquest.com/node/619487"></iframe> Share a Link Copy URL https://explore.partquest.com/node/619487 Copy of AC-DC Power Adapter With Current Boost Regulator - on Tue, 11/07/2023 - 17:15 User-1688571739Designer247180 × User-1688571739 Member for 8 months 3 weeks 6 designs 2 groups Title Description <p>This 5V regulator circuit provides 5A load current capability, well above the current limit of the linear regular component itself. This is thanks to the load sharing role of the bypass PNP transistor.</p> <p>The circuit is shown with a household 120 V. AC input, with a transformer and rectifier circuit, attempting to approximate a 12V automotive input voltage level. The design is based on an example application circuit shown in Figure 11 of the On Semiconductor Datasheet MC7800/D, November 2014 - Rev. 27. This executable design can be used to assess line and load transients, efficiency, PSRR vs. Frequency, etc. It can also be used for selecting the peripheral circuit components to achieve the desired performance.</p> <p>See also http://www.systemvision.com/design/ac-dc-power-adapter for a lower power level circuit.</p> About text formats Tags 5V Regulator, 5AMC7805Bboost Select a tag from the list or create your own.Drag to re-order taxonomy terms. License - None - What's this? Design Titleby User-1688571739 × Embed Design Copy Embed Code <iframe allowfullscreen="true" referrerpolicy="origin-when-cross-origin" frameborder="0" width="100%" height="720" scrolling="no" src="https://explore.partquest.com/embed-design/619484"></iframe> Embed Live Design Copy Embed Code <iframe allowfullscreen="true" referrerpolicy="origin-when-cross-origin" frameborder="0" width="100%" height="720" scrolling="no" src="https://explore.partquest.com/node/619484"></iframe> Share a Link Copy URL https://explore.partquest.com/node/619484 Copy of Thermal Modeling of AC-DC Power Adapter With Current Boost Regulator - on Sat, 08/26/2023 - 07:03 User-1693043499Designer248925 × User-1693043499 Member for 7 months 1 designs 1 groups Title Description <p>This example shows the capability of modeling the electrothermal aspects of power dissipating circuits. The design is a 5V regulator (non-switching), driven from a 120 Vac/60 Hz input and using a transformer/rectifier circuit to step down to a much lower DC-link voltage.</p> <p>The load current capability is 5A, which is well above the current limit of the linear regular component itself. This is thanks to the load sharing role of the bypass PNP transistor. The design is based on an example application circuit shown in Figure 11 of the On Semiconductor Datasheet MC7800/D, November 2014 - Rev. 27.</p> <p>All of the power dissipating electronics' models are from the "Thermal and Electro-thermal" Components Library. They have a thermal port that connects to the thermal network (i.e. red wires). These models output all the power dissipated in the device as a thermal heat-flow into that network. This includes the rectifier diodes, the linear regulator and the BJT, as well as the current sense resistor and the effective winding resistances of the transformer primary and secondary.</p> <p>The thermal network includes the heat-sink's heat capacitance (0.1 J/degC) and heat transfer resistance to the ambient (1 degC/Watt), as well as the datasheet published values for the junction-to-lead thermal resistances of all the active electronic components. An assumed value for the thermal capacitance of the BJT (0.005 J/degC, not provided by the manufacturer) was added for purposes of illustration. Obtaining the actual value would require deeper analysis or measurement of this important component characteristic. However, in this example, both thermal capacitance values were selected solely to give sufficiently fast thermal time constants, so that steady-state operating temperatures could be reached with minimal simulation time.</p> <p>This design is based on another shared design:</p> <p>"https://www.systemvision.com/design/ac-dc-power-adapter-current-boost-regulator", That design has been modified not only to add the electrothermal aspects, but it was also adjusted to improve its observed thermal performance. For example, the DC-link capacitance (c3) was increased from 4700uF to 22000uF, to allow a reduced DC-link operating voltage (i.e. to improve efficiency) while avoiding regulation drop-out at AC zero-crossings under heavy load conditions.</p> About text formats Tags 5V Regulator, 5AMC7805Belectro-thermal Select a tag from the list or create your own.Drag to re-order taxonomy terms. License - None - What's this? Design Titleby User-1693043499 × Embed Design Copy Embed Code <iframe allowfullscreen="true" referrerpolicy="origin-when-cross-origin" frameborder="0" width="100%" height="720" scrolling="no" src="https://explore.partquest.com/embed-design/607640"></iframe> Embed Live Design Copy Embed Code <iframe allowfullscreen="true" referrerpolicy="origin-when-cross-origin" frameborder="0" width="100%" height="720" scrolling="no" src="https://explore.partquest.com/node/607640"></iframe> Share a Link Copy URL https://explore.partquest.com/node/607640 Copy of AC-DC Power Adapter With Current Boost Regulator - on Tue, 08/22/2023 - 21:14 dgb.dgb.100Designer132741 × dgb.dgb.100 Member for 6 years 9 months 17 designs 1 groups Title Description <p>This 5V regulator circuit provides 5A load current capability, well above the current limit of the linear regular component itself. This is thanks to the load sharing role of the bypass PNP transistor.</p> <p>The circuit is shown with a household 120 V. AC input, with a transformer and rectifier circuit, attempting to approximate a 12V automotive input voltage level. The design is based on an example application circuit shown in Figure 11 of the On Semiconductor Datasheet MC7800/D, November 2014 - Rev. 27. This executable design can be used to assess line and load transients, efficiency, PSRR vs. Frequency, etc. It can also be used for selecting the peripheral circuit components to achieve the desired performance.</p> <p>See also http://www.systemvision.com/design/ac-dc-power-adapter for a lower power level circuit.</p> About text formats Tags 5V Regulator, 5AMC7805Bboost Select a tag from the list or create your own.Drag to re-order taxonomy terms. License - None - What's this? Design Titleby dgb.dgb.100 × Embed Design Copy Embed Code <iframe allowfullscreen="true" referrerpolicy="origin-when-cross-origin" frameborder="0" width="100%" height="720" scrolling="no" src="https://explore.partquest.com/embed-design/606422"></iframe> Embed Live Design Copy Embed Code <iframe allowfullscreen="true" referrerpolicy="origin-when-cross-origin" frameborder="0" width="100%" height="720" scrolling="no" src="https://explore.partquest.com/node/606422"></iframe> Share a Link Copy URL https://explore.partquest.com/node/606422 Copy of Electro-thermal Trade-off Analysis for AC-DC Converter with Current Boost Regulator - on Sat, 07/15/2023 - 16:15 User-1689304908Designer247512 × User-1689304908 Member for 8 months 2 weeks 5 designs 1 groups Title Description <p>This example shows the capability of modeling the electrothermal aspects of power dissipating circuits. The design is a 5V regulator (non-switching), driven from a 120 Vac/60 Hz input and using a transformer/rectifier circuit to step down to a much lower DC-link voltage.</p> <p>The load current capability is 5A, which is well above the current limit of the linear regular component itself. This is thanks to the load sharing role of the bypass PNP transistor. The design is based on an example application circuit shown in Figure 11 of the On Semiconductor Datasheet MC7800/D, November 2014 - Rev. 27.</p> <p>All of the power dissipating electronics' models are from the "Thermal and Electro-thermal" Components Library. They have a thermal port that connects to the thermal network (i.e. red wires). These models output all the power dissipated in the device as a thermal heat-flow into that network. This includes the rectifier diodes, the linear regulator and the BJT, as well as the current sense resistor and the effective winding resistances of the transformer primary and secondary.</p> <p>The thermal network includes the heat-sink's heat capacitance (0.1 J/degC) and heat transfer resistance to the ambient (1 degC/Watt), as well as the datasheet published values for the junction-to-lead thermal resistances of all the active electronic components. An assumed value for the thermal capacitance of the BJT (0.005 J/degC, not provided by the manufacturer) was added for purposes of illustration. Obtaining the actual value would require deeper analysis or measurement of this important component characteristic. However, in this example, both thermal capacitance values were selected solely to give sufficiently fast thermal time constants, so that steady-state operating temperatures could be reached with minimal simulation time.</p> <p>This design is based on another shared design:</p> <p>"https://www.systemvision.com/design/ac-dc-power-adapter-current-boost-regulator", That design has been modified not only to add the electrothermal aspects, but it was also adjusted to improve its observed thermal performance. For example, the DC-link capacitance (c3) was increased from 4700uF to 22000uF, to allow a reduced DC-link operating voltage (i.e. to improve efficiency) while avoiding regulation drop-out at AC zero-crossings under heavy load conditions.</p> About text formats Tags 5V Regulator, 5AMC7805Belectro-thermal Select a tag from the list or create your own.Drag to re-order taxonomy terms. License - None - What's this? Design Titleby User-1689304908 × Embed Design Copy Embed Code <iframe allowfullscreen="true" referrerpolicy="origin-when-cross-origin" frameborder="0" width="100%" height="720" scrolling="no" src="https://explore.partquest.com/embed-design/601278"></iframe> Embed Live Design Copy Embed Code <iframe allowfullscreen="true" referrerpolicy="origin-when-cross-origin" frameborder="0" width="100%" height="720" scrolling="no" src="https://explore.partquest.com/node/601278"></iframe> Share a Link Copy URL https://explore.partquest.com/node/601278 Pagination Page 1 Next page ››
AC-DC Power Adapter With Current Boost Regulator DarrellDesigner10 × Darrell Member for 10 years 4 months 624 designs 10 groups Title Description <p>This 5V regulator circuit provides 5A load current capability, well above the current limit of the linear regular component itself. This is thanks to the load sharing role of the bypass PNP transistor. </p><p>The circuit is shown with a household 120 V. AC input, with a transformer and rectifier circuit, attempting to approximate a 12V automotive input voltage level. The design is based on an example application circuit shown in Figure 11 of the On Semiconductor Datasheet MC7800/D, November 2014 - Rev. 27. This executable design can be used to assess line and load transients, efficiency, PSRR vs. Frequency, etc. It can also be used for selecting the peripheral circuit components to achieve the desired performance.</p><p>See also http://www.systemvision.com/design/ac-dc-power-adapter for a lower power level circuit.</p> About text formats Tags 5V Regulator, 5AMC7805Bboost Select a tag from the list or create your own.Drag to re-order taxonomy terms. License - None - What's this? Design Titleby Darrell × Embed Design Copy Embed Code <iframe allowfullscreen="true" referrerpolicy="origin-when-cross-origin" frameborder="0" width="100%" height="720" scrolling="no" src="https://explore.partquest.com/embed-design/9746"></iframe> Embed Live Design Copy Embed Code <iframe allowfullscreen="true" referrerpolicy="origin-when-cross-origin" frameborder="0" width="100%" height="720" scrolling="no" src="https://explore.partquest.com/node/9746"></iframe> Share a Link Copy URL https://explore.partquest.com/node/9746 Current Boost Regulator Mike DonnellyDesigner19 × Mike Donnelly Member for 10 years 4 months 1,529 designs 10 groups Title Description <p>This 5V regulator circuit provides 5A load current capability, well above the current limit of the linear regular component itself. This is thanks to the load sharing role of the bypass PNP transistor. </p><p>The circuit is shown with a 12V automotive input voltage level. The design is based on an example application circuit shown in Figure 11 of the On Semiconductor Datasheet MC7800/D, November 2014 - Rev. 27. This executable design can be used to assess line and load transients, efficiency, PSRR vs. Frequency, etc. It can also be used for selecting the peripheral circuit components to achieve the desired performance.</p> About text formats Tags 5V Regulator, 5AMC7805B Select a tag from the list or create your own.Drag to re-order taxonomy terms. License - None - What's this? Design Titleby Mike Donnelly × Embed Design Copy Embed Code <iframe allowfullscreen="true" referrerpolicy="origin-when-cross-origin" frameborder="0" width="100%" height="720" scrolling="no" src="https://explore.partquest.com/embed-design/591"></iframe> Embed Live Design Copy Embed Code <iframe allowfullscreen="true" referrerpolicy="origin-when-cross-origin" frameborder="0" width="100%" height="720" scrolling="no" src="https://explore.partquest.com/node/591"></iframe> Share a Link Copy URL https://explore.partquest.com/node/591 Copy of Electro-thermal Trade-off Analysis for AC-DC Converter with Current Boost Regulator - on Sun, 01/14/2024 - 17:47 User-1705420952Designer253227 × User-1705420952 Member for 2 months 1 week 1 designs 1 groups Title Description <p>This example shows the capability of modeling the electrothermal aspects of power dissipating circuits. The design is a 5V regulator (non-switching), driven from a 120 Vac/60 Hz input and using a transformer/rectifier circuit to step down to a much lower DC-link voltage.</p> <p>The load current capability is 5A, which is well above the current limit of the linear regular component itself. This is thanks to the load sharing role of the bypass PNP transistor. The design is based on an example application circuit shown in Figure 11 of the On Semiconductor Datasheet MC7800/D, November 2014 - Rev. 27.</p> <p>All of the power dissipating electronics' models are from the "Thermal and Electro-thermal" Components Library. They have a thermal port that connects to the thermal network (i.e. red wires). These models output all the power dissipated in the device as a thermal heat-flow into that network. This includes the rectifier diodes, the linear regulator and the BJT, as well as the current sense resistor and the effective winding resistances of the transformer primary and secondary.</p> <p>The thermal network includes the heat-sink's heat capacitance (0.1 J/degC) and heat transfer resistance to the ambient (1 degC/Watt), as well as the datasheet published values for the junction-to-lead thermal resistances of all the active electronic components. An assumed value for the thermal capacitance of the BJT (0.005 J/degC, not provided by the manufacturer) was added for purposes of illustration. Obtaining the actual value would require deeper analysis or measurement of this important component characteristic. However, in this example, both thermal capacitance values were selected solely to give sufficiently fast thermal time constants, so that steady-state operating temperatures could be reached with minimal simulation time.</p> <p>This design is based on another shared design:</p> <p>"https://www.systemvision.com/design/ac-dc-power-adapter-current-boost-regulator", That design has been modified not only to add the electrothermal aspects, but it was also adjusted to improve its observed thermal performance. For example, the DC-link capacitance (c3) was increased from 4700uF to 22000uF, to allow a reduced DC-link operating voltage (i.e. to improve efficiency) while avoiding regulation drop-out at AC zero-crossings under heavy load conditions.</p> About text formats Tags 5V Regulator, 5AMC7805Belectro-thermal Select a tag from the list or create your own.Drag to re-order taxonomy terms. License - None - What's this? Design Titleby User-1705420952 × Embed Design Copy Embed Code <iframe allowfullscreen="true" referrerpolicy="origin-when-cross-origin" frameborder="0" width="100%" height="720" scrolling="no" src="https://explore.partquest.com/embed-design/630244"></iframe> Embed Live Design Copy Embed Code <iframe allowfullscreen="true" referrerpolicy="origin-when-cross-origin" frameborder="0" width="100%" height="720" scrolling="no" src="https://explore.partquest.com/node/630244"></iframe> Share a Link Copy URL https://explore.partquest.com/node/630244 Copy of Electro-thermal Trade-off Analysis for AC-DC Converter with Current Boost Regulator - on Wed, 11/15/2023 - 15:59 User-1700074806Designer251302 × User-1700074806 Member for 4 months 1 week 2 designs 1 groups Title Description <p>This example shows the capability of modeling the electrothermal aspects of power dissipating circuits. The design is a 5V regulator (non-switching), driven from a 120 Vac/60 Hz input and using a transformer/rectifier circuit to step down to a much lower DC-link voltage.</p> <p>The load current capability is 5A, which is well above the current limit of the linear regular component itself. This is thanks to the load sharing role of the bypass PNP transistor. The design is based on an example application circuit shown in Figure 11 of the On Semiconductor Datasheet MC7800/D, November 2014 - Rev. 27.</p> <p>All of the power dissipating electronics' models are from the "Thermal and Electro-thermal" Components Library. They have a thermal port that connects to the thermal network (i.e. red wires). These models output all the power dissipated in the device as a thermal heat-flow into that network. This includes the rectifier diodes, the linear regulator and the BJT, as well as the current sense resistor and the effective winding resistances of the transformer primary and secondary.</p> <p>The thermal network includes the heat-sink's heat capacitance (0.1 J/degC) and heat transfer resistance to the ambient (1 degC/Watt), as well as the datasheet published values for the junction-to-lead thermal resistances of all the active electronic components. An assumed value for the thermal capacitance of the BJT (0.005 J/degC, not provided by the manufacturer) was added for purposes of illustration. Obtaining the actual value would require deeper analysis or measurement of this important component characteristic. However, in this example, both thermal capacitance values were selected solely to give sufficiently fast thermal time constants, so that steady-state operating temperatures could be reached with minimal simulation time.</p> <p>This design is based on another shared design:</p> <p>"https://www.systemvision.com/design/ac-dc-power-adapter-current-boost-regulator", That design has been modified not only to add the electrothermal aspects, but it was also adjusted to improve its observed thermal performance. For example, the DC-link capacitance (c3) was increased from 4700uF to 22000uF, to allow a reduced DC-link operating voltage (i.e. to improve efficiency) while avoiding regulation drop-out at AC zero-crossings under heavy load conditions.</p> About text formats Tags 5V Regulator, 5AMC7805Belectro-thermal Select a tag from the list or create your own.Drag to re-order taxonomy terms. License - None - What's this? Design Titleby User-1700074806 × Embed Design Copy Embed Code <iframe allowfullscreen="true" referrerpolicy="origin-when-cross-origin" frameborder="0" width="100%" height="720" scrolling="no" src="https://explore.partquest.com/embed-design/620595"></iframe> Embed Live Design Copy Embed Code <iframe allowfullscreen="true" referrerpolicy="origin-when-cross-origin" frameborder="0" width="100%" height="720" scrolling="no" src="https://explore.partquest.com/node/620595"></iframe> Share a Link Copy URL https://explore.partquest.com/node/620595 Copy of AC-DC Power Adapter With Current Boost Regulator - on Tue, 11/07/2023 - 17:28 User-1688571739Designer247180 × User-1688571739 Member for 8 months 3 weeks 6 designs 2 groups Title Description <p>This 5V regulator circuit provides 5A load current capability, well above the current limit of the linear regular component itself. This is thanks to the load sharing role of the bypass PNP transistor.</p> <p>The circuit is shown with a household 120 V. AC input, with a transformer and rectifier circuit, attempting to approximate a 12V automotive input voltage level. The design is based on an example application circuit shown in Figure 11 of the On Semiconductor Datasheet MC7800/D, November 2014 - Rev. 27. This executable design can be used to assess line and load transients, efficiency, PSRR vs. Frequency, etc. It can also be used for selecting the peripheral circuit components to achieve the desired performance.</p> <p>See also http://www.systemvision.com/design/ac-dc-power-adapter for a lower power level circuit.</p> About text formats Tags 5V Regulator, 5AMC7805Bboost Select a tag from the list or create your own.Drag to re-order taxonomy terms. License - None - What's this? Design Titleby User-1688571739 × Embed Design Copy Embed Code <iframe allowfullscreen="true" referrerpolicy="origin-when-cross-origin" frameborder="0" width="100%" height="720" scrolling="no" src="https://explore.partquest.com/embed-design/619487"></iframe> Embed Live Design Copy Embed Code <iframe allowfullscreen="true" referrerpolicy="origin-when-cross-origin" frameborder="0" width="100%" height="720" scrolling="no" src="https://explore.partquest.com/node/619487"></iframe> Share a Link Copy URL https://explore.partquest.com/node/619487 Copy of AC-DC Power Adapter With Current Boost Regulator - on Tue, 11/07/2023 - 17:15 User-1688571739Designer247180 × User-1688571739 Member for 8 months 3 weeks 6 designs 2 groups Title Description <p>This 5V regulator circuit provides 5A load current capability, well above the current limit of the linear regular component itself. This is thanks to the load sharing role of the bypass PNP transistor.</p> <p>The circuit is shown with a household 120 V. AC input, with a transformer and rectifier circuit, attempting to approximate a 12V automotive input voltage level. The design is based on an example application circuit shown in Figure 11 of the On Semiconductor Datasheet MC7800/D, November 2014 - Rev. 27. This executable design can be used to assess line and load transients, efficiency, PSRR vs. Frequency, etc. It can also be used for selecting the peripheral circuit components to achieve the desired performance.</p> <p>See also http://www.systemvision.com/design/ac-dc-power-adapter for a lower power level circuit.</p> About text formats Tags 5V Regulator, 5AMC7805Bboost Select a tag from the list or create your own.Drag to re-order taxonomy terms. License - None - What's this? Design Titleby User-1688571739 × Embed Design Copy Embed Code <iframe allowfullscreen="true" referrerpolicy="origin-when-cross-origin" frameborder="0" width="100%" height="720" scrolling="no" src="https://explore.partquest.com/embed-design/619484"></iframe> Embed Live Design Copy Embed Code <iframe allowfullscreen="true" referrerpolicy="origin-when-cross-origin" frameborder="0" width="100%" height="720" scrolling="no" src="https://explore.partquest.com/node/619484"></iframe> Share a Link Copy URL https://explore.partquest.com/node/619484 Copy of Thermal Modeling of AC-DC Power Adapter With Current Boost Regulator - on Sat, 08/26/2023 - 07:03 User-1693043499Designer248925 × User-1693043499 Member for 7 months 1 designs 1 groups Title Description <p>This example shows the capability of modeling the electrothermal aspects of power dissipating circuits. The design is a 5V regulator (non-switching), driven from a 120 Vac/60 Hz input and using a transformer/rectifier circuit to step down to a much lower DC-link voltage.</p> <p>The load current capability is 5A, which is well above the current limit of the linear regular component itself. This is thanks to the load sharing role of the bypass PNP transistor. The design is based on an example application circuit shown in Figure 11 of the On Semiconductor Datasheet MC7800/D, November 2014 - Rev. 27.</p> <p>All of the power dissipating electronics' models are from the "Thermal and Electro-thermal" Components Library. They have a thermal port that connects to the thermal network (i.e. red wires). These models output all the power dissipated in the device as a thermal heat-flow into that network. This includes the rectifier diodes, the linear regulator and the BJT, as well as the current sense resistor and the effective winding resistances of the transformer primary and secondary.</p> <p>The thermal network includes the heat-sink's heat capacitance (0.1 J/degC) and heat transfer resistance to the ambient (1 degC/Watt), as well as the datasheet published values for the junction-to-lead thermal resistances of all the active electronic components. An assumed value for the thermal capacitance of the BJT (0.005 J/degC, not provided by the manufacturer) was added for purposes of illustration. Obtaining the actual value would require deeper analysis or measurement of this important component characteristic. However, in this example, both thermal capacitance values were selected solely to give sufficiently fast thermal time constants, so that steady-state operating temperatures could be reached with minimal simulation time.</p> <p>This design is based on another shared design:</p> <p>"https://www.systemvision.com/design/ac-dc-power-adapter-current-boost-regulator", That design has been modified not only to add the electrothermal aspects, but it was also adjusted to improve its observed thermal performance. For example, the DC-link capacitance (c3) was increased from 4700uF to 22000uF, to allow a reduced DC-link operating voltage (i.e. to improve efficiency) while avoiding regulation drop-out at AC zero-crossings under heavy load conditions.</p> About text formats Tags 5V Regulator, 5AMC7805Belectro-thermal Select a tag from the list or create your own.Drag to re-order taxonomy terms. License - None - What's this? Design Titleby User-1693043499 × Embed Design Copy Embed Code <iframe allowfullscreen="true" referrerpolicy="origin-when-cross-origin" frameborder="0" width="100%" height="720" scrolling="no" src="https://explore.partquest.com/embed-design/607640"></iframe> Embed Live Design Copy Embed Code <iframe allowfullscreen="true" referrerpolicy="origin-when-cross-origin" frameborder="0" width="100%" height="720" scrolling="no" src="https://explore.partquest.com/node/607640"></iframe> Share a Link Copy URL https://explore.partquest.com/node/607640 Copy of AC-DC Power Adapter With Current Boost Regulator - on Tue, 08/22/2023 - 21:14 dgb.dgb.100Designer132741 × dgb.dgb.100 Member for 6 years 9 months 17 designs 1 groups Title Description <p>This 5V regulator circuit provides 5A load current capability, well above the current limit of the linear regular component itself. This is thanks to the load sharing role of the bypass PNP transistor.</p> <p>The circuit is shown with a household 120 V. AC input, with a transformer and rectifier circuit, attempting to approximate a 12V automotive input voltage level. The design is based on an example application circuit shown in Figure 11 of the On Semiconductor Datasheet MC7800/D, November 2014 - Rev. 27. This executable design can be used to assess line and load transients, efficiency, PSRR vs. Frequency, etc. It can also be used for selecting the peripheral circuit components to achieve the desired performance.</p> <p>See also http://www.systemvision.com/design/ac-dc-power-adapter for a lower power level circuit.</p> About text formats Tags 5V Regulator, 5AMC7805Bboost Select a tag from the list or create your own.Drag to re-order taxonomy terms. License - None - What's this? Design Titleby dgb.dgb.100 × Embed Design Copy Embed Code <iframe allowfullscreen="true" referrerpolicy="origin-when-cross-origin" frameborder="0" width="100%" height="720" scrolling="no" src="https://explore.partquest.com/embed-design/606422"></iframe> Embed Live Design Copy Embed Code <iframe allowfullscreen="true" referrerpolicy="origin-when-cross-origin" frameborder="0" width="100%" height="720" scrolling="no" src="https://explore.partquest.com/node/606422"></iframe> Share a Link Copy URL https://explore.partquest.com/node/606422 Copy of Electro-thermal Trade-off Analysis for AC-DC Converter with Current Boost Regulator - on Sat, 07/15/2023 - 16:15 User-1689304908Designer247512 × User-1689304908 Member for 8 months 2 weeks 5 designs 1 groups Title Description <p>This example shows the capability of modeling the electrothermal aspects of power dissipating circuits. The design is a 5V regulator (non-switching), driven from a 120 Vac/60 Hz input and using a transformer/rectifier circuit to step down to a much lower DC-link voltage.</p> <p>The load current capability is 5A, which is well above the current limit of the linear regular component itself. This is thanks to the load sharing role of the bypass PNP transistor. The design is based on an example application circuit shown in Figure 11 of the On Semiconductor Datasheet MC7800/D, November 2014 - Rev. 27.</p> <p>All of the power dissipating electronics' models are from the "Thermal and Electro-thermal" Components Library. They have a thermal port that connects to the thermal network (i.e. red wires). These models output all the power dissipated in the device as a thermal heat-flow into that network. This includes the rectifier diodes, the linear regulator and the BJT, as well as the current sense resistor and the effective winding resistances of the transformer primary and secondary.</p> <p>The thermal network includes the heat-sink's heat capacitance (0.1 J/degC) and heat transfer resistance to the ambient (1 degC/Watt), as well as the datasheet published values for the junction-to-lead thermal resistances of all the active electronic components. An assumed value for the thermal capacitance of the BJT (0.005 J/degC, not provided by the manufacturer) was added for purposes of illustration. Obtaining the actual value would require deeper analysis or measurement of this important component characteristic. However, in this example, both thermal capacitance values were selected solely to give sufficiently fast thermal time constants, so that steady-state operating temperatures could be reached with minimal simulation time.</p> <p>This design is based on another shared design:</p> <p>"https://www.systemvision.com/design/ac-dc-power-adapter-current-boost-regulator", That design has been modified not only to add the electrothermal aspects, but it was also adjusted to improve its observed thermal performance. For example, the DC-link capacitance (c3) was increased from 4700uF to 22000uF, to allow a reduced DC-link operating voltage (i.e. to improve efficiency) while avoiding regulation drop-out at AC zero-crossings under heavy load conditions.</p> About text formats Tags 5V Regulator, 5AMC7805Belectro-thermal Select a tag from the list or create your own.Drag to re-order taxonomy terms. License - None - What's this? Design Titleby User-1689304908 × Embed Design Copy Embed Code <iframe allowfullscreen="true" referrerpolicy="origin-when-cross-origin" frameborder="0" width="100%" height="720" scrolling="no" src="https://explore.partquest.com/embed-design/601278"></iframe> Embed Live Design Copy Embed Code <iframe allowfullscreen="true" referrerpolicy="origin-when-cross-origin" frameborder="0" width="100%" height="720" scrolling="no" src="https://explore.partquest.com/node/601278"></iframe> Share a Link Copy URL https://explore.partquest.com/node/601278 Pagination Page 1 Next page ››
Current Boost Regulator Mike DonnellyDesigner19 × Mike Donnelly Member for 10 years 4 months 1,529 designs 10 groups Title Description <p>This 5V regulator circuit provides 5A load current capability, well above the current limit of the linear regular component itself. This is thanks to the load sharing role of the bypass PNP transistor. </p><p>The circuit is shown with a 12V automotive input voltage level. The design is based on an example application circuit shown in Figure 11 of the On Semiconductor Datasheet MC7800/D, November 2014 - Rev. 27. This executable design can be used to assess line and load transients, efficiency, PSRR vs. Frequency, etc. It can also be used for selecting the peripheral circuit components to achieve the desired performance.</p> About text formats Tags 5V Regulator, 5AMC7805B Select a tag from the list or create your own.Drag to re-order taxonomy terms. License - None - What's this? Design Titleby Mike Donnelly × Embed Design Copy Embed Code <iframe allowfullscreen="true" referrerpolicy="origin-when-cross-origin" frameborder="0" width="100%" height="720" scrolling="no" src="https://explore.partquest.com/embed-design/591"></iframe> Embed Live Design Copy Embed Code <iframe allowfullscreen="true" referrerpolicy="origin-when-cross-origin" frameborder="0" width="100%" height="720" scrolling="no" src="https://explore.partquest.com/node/591"></iframe> Share a Link Copy URL https://explore.partquest.com/node/591 Copy of Electro-thermal Trade-off Analysis for AC-DC Converter with Current Boost Regulator - on Sun, 01/14/2024 - 17:47 User-1705420952Designer253227 × User-1705420952 Member for 2 months 1 week 1 designs 1 groups Title Description <p>This example shows the capability of modeling the electrothermal aspects of power dissipating circuits. The design is a 5V regulator (non-switching), driven from a 120 Vac/60 Hz input and using a transformer/rectifier circuit to step down to a much lower DC-link voltage.</p> <p>The load current capability is 5A, which is well above the current limit of the linear regular component itself. This is thanks to the load sharing role of the bypass PNP transistor. The design is based on an example application circuit shown in Figure 11 of the On Semiconductor Datasheet MC7800/D, November 2014 - Rev. 27.</p> <p>All of the power dissipating electronics' models are from the "Thermal and Electro-thermal" Components Library. They have a thermal port that connects to the thermal network (i.e. red wires). These models output all the power dissipated in the device as a thermal heat-flow into that network. This includes the rectifier diodes, the linear regulator and the BJT, as well as the current sense resistor and the effective winding resistances of the transformer primary and secondary.</p> <p>The thermal network includes the heat-sink's heat capacitance (0.1 J/degC) and heat transfer resistance to the ambient (1 degC/Watt), as well as the datasheet published values for the junction-to-lead thermal resistances of all the active electronic components. An assumed value for the thermal capacitance of the BJT (0.005 J/degC, not provided by the manufacturer) was added for purposes of illustration. Obtaining the actual value would require deeper analysis or measurement of this important component characteristic. However, in this example, both thermal capacitance values were selected solely to give sufficiently fast thermal time constants, so that steady-state operating temperatures could be reached with minimal simulation time.</p> <p>This design is based on another shared design:</p> <p>"https://www.systemvision.com/design/ac-dc-power-adapter-current-boost-regulator", That design has been modified not only to add the electrothermal aspects, but it was also adjusted to improve its observed thermal performance. For example, the DC-link capacitance (c3) was increased from 4700uF to 22000uF, to allow a reduced DC-link operating voltage (i.e. to improve efficiency) while avoiding regulation drop-out at AC zero-crossings under heavy load conditions.</p> About text formats Tags 5V Regulator, 5AMC7805Belectro-thermal Select a tag from the list or create your own.Drag to re-order taxonomy terms. License - None - What's this? Design Titleby User-1705420952 × Embed Design Copy Embed Code <iframe allowfullscreen="true" referrerpolicy="origin-when-cross-origin" frameborder="0" width="100%" height="720" scrolling="no" src="https://explore.partquest.com/embed-design/630244"></iframe> Embed Live Design Copy Embed Code <iframe allowfullscreen="true" referrerpolicy="origin-when-cross-origin" frameborder="0" width="100%" height="720" scrolling="no" src="https://explore.partquest.com/node/630244"></iframe> Share a Link Copy URL https://explore.partquest.com/node/630244 Copy of Electro-thermal Trade-off Analysis for AC-DC Converter with Current Boost Regulator - on Wed, 11/15/2023 - 15:59 User-1700074806Designer251302 × User-1700074806 Member for 4 months 1 week 2 designs 1 groups Title Description <p>This example shows the capability of modeling the electrothermal aspects of power dissipating circuits. The design is a 5V regulator (non-switching), driven from a 120 Vac/60 Hz input and using a transformer/rectifier circuit to step down to a much lower DC-link voltage.</p> <p>The load current capability is 5A, which is well above the current limit of the linear regular component itself. This is thanks to the load sharing role of the bypass PNP transistor. The design is based on an example application circuit shown in Figure 11 of the On Semiconductor Datasheet MC7800/D, November 2014 - Rev. 27.</p> <p>All of the power dissipating electronics' models are from the "Thermal and Electro-thermal" Components Library. They have a thermal port that connects to the thermal network (i.e. red wires). These models output all the power dissipated in the device as a thermal heat-flow into that network. This includes the rectifier diodes, the linear regulator and the BJT, as well as the current sense resistor and the effective winding resistances of the transformer primary and secondary.</p> <p>The thermal network includes the heat-sink's heat capacitance (0.1 J/degC) and heat transfer resistance to the ambient (1 degC/Watt), as well as the datasheet published values for the junction-to-lead thermal resistances of all the active electronic components. An assumed value for the thermal capacitance of the BJT (0.005 J/degC, not provided by the manufacturer) was added for purposes of illustration. Obtaining the actual value would require deeper analysis or measurement of this important component characteristic. However, in this example, both thermal capacitance values were selected solely to give sufficiently fast thermal time constants, so that steady-state operating temperatures could be reached with minimal simulation time.</p> <p>This design is based on another shared design:</p> <p>"https://www.systemvision.com/design/ac-dc-power-adapter-current-boost-regulator", That design has been modified not only to add the electrothermal aspects, but it was also adjusted to improve its observed thermal performance. For example, the DC-link capacitance (c3) was increased from 4700uF to 22000uF, to allow a reduced DC-link operating voltage (i.e. to improve efficiency) while avoiding regulation drop-out at AC zero-crossings under heavy load conditions.</p> About text formats Tags 5V Regulator, 5AMC7805Belectro-thermal Select a tag from the list or create your own.Drag to re-order taxonomy terms. License - None - What's this? Design Titleby User-1700074806 × Embed Design Copy Embed Code <iframe allowfullscreen="true" referrerpolicy="origin-when-cross-origin" frameborder="0" width="100%" height="720" scrolling="no" src="https://explore.partquest.com/embed-design/620595"></iframe> Embed Live Design Copy Embed Code <iframe allowfullscreen="true" referrerpolicy="origin-when-cross-origin" frameborder="0" width="100%" height="720" scrolling="no" src="https://explore.partquest.com/node/620595"></iframe> Share a Link Copy URL https://explore.partquest.com/node/620595 Copy of AC-DC Power Adapter With Current Boost Regulator - on Tue, 11/07/2023 - 17:28 User-1688571739Designer247180 × User-1688571739 Member for 8 months 3 weeks 6 designs 2 groups Title Description <p>This 5V regulator circuit provides 5A load current capability, well above the current limit of the linear regular component itself. This is thanks to the load sharing role of the bypass PNP transistor.</p> <p>The circuit is shown with a household 120 V. AC input, with a transformer and rectifier circuit, attempting to approximate a 12V automotive input voltage level. The design is based on an example application circuit shown in Figure 11 of the On Semiconductor Datasheet MC7800/D, November 2014 - Rev. 27. This executable design can be used to assess line and load transients, efficiency, PSRR vs. Frequency, etc. It can also be used for selecting the peripheral circuit components to achieve the desired performance.</p> <p>See also http://www.systemvision.com/design/ac-dc-power-adapter for a lower power level circuit.</p> About text formats Tags 5V Regulator, 5AMC7805Bboost Select a tag from the list or create your own.Drag to re-order taxonomy terms. License - None - What's this? Design Titleby User-1688571739 × Embed Design Copy Embed Code <iframe allowfullscreen="true" referrerpolicy="origin-when-cross-origin" frameborder="0" width="100%" height="720" scrolling="no" src="https://explore.partquest.com/embed-design/619487"></iframe> Embed Live Design Copy Embed Code <iframe allowfullscreen="true" referrerpolicy="origin-when-cross-origin" frameborder="0" width="100%" height="720" scrolling="no" src="https://explore.partquest.com/node/619487"></iframe> Share a Link Copy URL https://explore.partquest.com/node/619487 Copy of AC-DC Power Adapter With Current Boost Regulator - on Tue, 11/07/2023 - 17:15 User-1688571739Designer247180 × User-1688571739 Member for 8 months 3 weeks 6 designs 2 groups Title Description <p>This 5V regulator circuit provides 5A load current capability, well above the current limit of the linear regular component itself. This is thanks to the load sharing role of the bypass PNP transistor.</p> <p>The circuit is shown with a household 120 V. AC input, with a transformer and rectifier circuit, attempting to approximate a 12V automotive input voltage level. The design is based on an example application circuit shown in Figure 11 of the On Semiconductor Datasheet MC7800/D, November 2014 - Rev. 27. This executable design can be used to assess line and load transients, efficiency, PSRR vs. Frequency, etc. It can also be used for selecting the peripheral circuit components to achieve the desired performance.</p> <p>See also http://www.systemvision.com/design/ac-dc-power-adapter for a lower power level circuit.</p> About text formats Tags 5V Regulator, 5AMC7805Bboost Select a tag from the list or create your own.Drag to re-order taxonomy terms. License - None - What's this? Design Titleby User-1688571739 × Embed Design Copy Embed Code <iframe allowfullscreen="true" referrerpolicy="origin-when-cross-origin" frameborder="0" width="100%" height="720" scrolling="no" src="https://explore.partquest.com/embed-design/619484"></iframe> Embed Live Design Copy Embed Code <iframe allowfullscreen="true" referrerpolicy="origin-when-cross-origin" frameborder="0" width="100%" height="720" scrolling="no" src="https://explore.partquest.com/node/619484"></iframe> Share a Link Copy URL https://explore.partquest.com/node/619484 Copy of Thermal Modeling of AC-DC Power Adapter With Current Boost Regulator - on Sat, 08/26/2023 - 07:03 User-1693043499Designer248925 × User-1693043499 Member for 7 months 1 designs 1 groups Title Description <p>This example shows the capability of modeling the electrothermal aspects of power dissipating circuits. The design is a 5V regulator (non-switching), driven from a 120 Vac/60 Hz input and using a transformer/rectifier circuit to step down to a much lower DC-link voltage.</p> <p>The load current capability is 5A, which is well above the current limit of the linear regular component itself. This is thanks to the load sharing role of the bypass PNP transistor. The design is based on an example application circuit shown in Figure 11 of the On Semiconductor Datasheet MC7800/D, November 2014 - Rev. 27.</p> <p>All of the power dissipating electronics' models are from the "Thermal and Electro-thermal" Components Library. They have a thermal port that connects to the thermal network (i.e. red wires). These models output all the power dissipated in the device as a thermal heat-flow into that network. This includes the rectifier diodes, the linear regulator and the BJT, as well as the current sense resistor and the effective winding resistances of the transformer primary and secondary.</p> <p>The thermal network includes the heat-sink's heat capacitance (0.1 J/degC) and heat transfer resistance to the ambient (1 degC/Watt), as well as the datasheet published values for the junction-to-lead thermal resistances of all the active electronic components. An assumed value for the thermal capacitance of the BJT (0.005 J/degC, not provided by the manufacturer) was added for purposes of illustration. Obtaining the actual value would require deeper analysis or measurement of this important component characteristic. However, in this example, both thermal capacitance values were selected solely to give sufficiently fast thermal time constants, so that steady-state operating temperatures could be reached with minimal simulation time.</p> <p>This design is based on another shared design:</p> <p>"https://www.systemvision.com/design/ac-dc-power-adapter-current-boost-regulator", That design has been modified not only to add the electrothermal aspects, but it was also adjusted to improve its observed thermal performance. For example, the DC-link capacitance (c3) was increased from 4700uF to 22000uF, to allow a reduced DC-link operating voltage (i.e. to improve efficiency) while avoiding regulation drop-out at AC zero-crossings under heavy load conditions.</p> About text formats Tags 5V Regulator, 5AMC7805Belectro-thermal Select a tag from the list or create your own.Drag to re-order taxonomy terms. License - None - What's this? Design Titleby User-1693043499 × Embed Design Copy Embed Code <iframe allowfullscreen="true" referrerpolicy="origin-when-cross-origin" frameborder="0" width="100%" height="720" scrolling="no" src="https://explore.partquest.com/embed-design/607640"></iframe> Embed Live Design Copy Embed Code <iframe allowfullscreen="true" referrerpolicy="origin-when-cross-origin" frameborder="0" width="100%" height="720" scrolling="no" src="https://explore.partquest.com/node/607640"></iframe> Share a Link Copy URL https://explore.partquest.com/node/607640 Copy of AC-DC Power Adapter With Current Boost Regulator - on Tue, 08/22/2023 - 21:14 dgb.dgb.100Designer132741 × dgb.dgb.100 Member for 6 years 9 months 17 designs 1 groups Title Description <p>This 5V regulator circuit provides 5A load current capability, well above the current limit of the linear regular component itself. This is thanks to the load sharing role of the bypass PNP transistor.</p> <p>The circuit is shown with a household 120 V. AC input, with a transformer and rectifier circuit, attempting to approximate a 12V automotive input voltage level. The design is based on an example application circuit shown in Figure 11 of the On Semiconductor Datasheet MC7800/D, November 2014 - Rev. 27. This executable design can be used to assess line and load transients, efficiency, PSRR vs. Frequency, etc. It can also be used for selecting the peripheral circuit components to achieve the desired performance.</p> <p>See also http://www.systemvision.com/design/ac-dc-power-adapter for a lower power level circuit.</p> About text formats Tags 5V Regulator, 5AMC7805Bboost Select a tag from the list or create your own.Drag to re-order taxonomy terms. License - None - What's this? Design Titleby dgb.dgb.100 × Embed Design Copy Embed Code <iframe allowfullscreen="true" referrerpolicy="origin-when-cross-origin" frameborder="0" width="100%" height="720" scrolling="no" src="https://explore.partquest.com/embed-design/606422"></iframe> Embed Live Design Copy Embed Code <iframe allowfullscreen="true" referrerpolicy="origin-when-cross-origin" frameborder="0" width="100%" height="720" scrolling="no" src="https://explore.partquest.com/node/606422"></iframe> Share a Link Copy URL https://explore.partquest.com/node/606422 Copy of Electro-thermal Trade-off Analysis for AC-DC Converter with Current Boost Regulator - on Sat, 07/15/2023 - 16:15 User-1689304908Designer247512 × User-1689304908 Member for 8 months 2 weeks 5 designs 1 groups Title Description <p>This example shows the capability of modeling the electrothermal aspects of power dissipating circuits. The design is a 5V regulator (non-switching), driven from a 120 Vac/60 Hz input and using a transformer/rectifier circuit to step down to a much lower DC-link voltage.</p> <p>The load current capability is 5A, which is well above the current limit of the linear regular component itself. This is thanks to the load sharing role of the bypass PNP transistor. The design is based on an example application circuit shown in Figure 11 of the On Semiconductor Datasheet MC7800/D, November 2014 - Rev. 27.</p> <p>All of the power dissipating electronics' models are from the "Thermal and Electro-thermal" Components Library. They have a thermal port that connects to the thermal network (i.e. red wires). These models output all the power dissipated in the device as a thermal heat-flow into that network. This includes the rectifier diodes, the linear regulator and the BJT, as well as the current sense resistor and the effective winding resistances of the transformer primary and secondary.</p> <p>The thermal network includes the heat-sink's heat capacitance (0.1 J/degC) and heat transfer resistance to the ambient (1 degC/Watt), as well as the datasheet published values for the junction-to-lead thermal resistances of all the active electronic components. An assumed value for the thermal capacitance of the BJT (0.005 J/degC, not provided by the manufacturer) was added for purposes of illustration. Obtaining the actual value would require deeper analysis or measurement of this important component characteristic. However, in this example, both thermal capacitance values were selected solely to give sufficiently fast thermal time constants, so that steady-state operating temperatures could be reached with minimal simulation time.</p> <p>This design is based on another shared design:</p> <p>"https://www.systemvision.com/design/ac-dc-power-adapter-current-boost-regulator", That design has been modified not only to add the electrothermal aspects, but it was also adjusted to improve its observed thermal performance. For example, the DC-link capacitance (c3) was increased from 4700uF to 22000uF, to allow a reduced DC-link operating voltage (i.e. to improve efficiency) while avoiding regulation drop-out at AC zero-crossings under heavy load conditions.</p> About text formats Tags 5V Regulator, 5AMC7805Belectro-thermal Select a tag from the list or create your own.Drag to re-order taxonomy terms. License - None - What's this? Design Titleby User-1689304908 × Embed Design Copy Embed Code <iframe allowfullscreen="true" referrerpolicy="origin-when-cross-origin" frameborder="0" width="100%" height="720" scrolling="no" src="https://explore.partquest.com/embed-design/601278"></iframe> Embed Live Design Copy Embed Code <iframe allowfullscreen="true" referrerpolicy="origin-when-cross-origin" frameborder="0" width="100%" height="720" scrolling="no" src="https://explore.partquest.com/node/601278"></iframe> Share a Link Copy URL https://explore.partquest.com/node/601278 Pagination Page 1 Next page ››
Copy of Electro-thermal Trade-off Analysis for AC-DC Converter with Current Boost Regulator - on Sun, 01/14/2024 - 17:47 User-1705420952Designer253227 × User-1705420952 Member for 2 months 1 week 1 designs 1 groups Title Description <p>This example shows the capability of modeling the electrothermal aspects of power dissipating circuits. The design is a 5V regulator (non-switching), driven from a 120 Vac/60 Hz input and using a transformer/rectifier circuit to step down to a much lower DC-link voltage.</p> <p>The load current capability is 5A, which is well above the current limit of the linear regular component itself. This is thanks to the load sharing role of the bypass PNP transistor. The design is based on an example application circuit shown in Figure 11 of the On Semiconductor Datasheet MC7800/D, November 2014 - Rev. 27.</p> <p>All of the power dissipating electronics' models are from the "Thermal and Electro-thermal" Components Library. They have a thermal port that connects to the thermal network (i.e. red wires). These models output all the power dissipated in the device as a thermal heat-flow into that network. This includes the rectifier diodes, the linear regulator and the BJT, as well as the current sense resistor and the effective winding resistances of the transformer primary and secondary.</p> <p>The thermal network includes the heat-sink's heat capacitance (0.1 J/degC) and heat transfer resistance to the ambient (1 degC/Watt), as well as the datasheet published values for the junction-to-lead thermal resistances of all the active electronic components. An assumed value for the thermal capacitance of the BJT (0.005 J/degC, not provided by the manufacturer) was added for purposes of illustration. Obtaining the actual value would require deeper analysis or measurement of this important component characteristic. However, in this example, both thermal capacitance values were selected solely to give sufficiently fast thermal time constants, so that steady-state operating temperatures could be reached with minimal simulation time.</p> <p>This design is based on another shared design:</p> <p>"https://www.systemvision.com/design/ac-dc-power-adapter-current-boost-regulator", That design has been modified not only to add the electrothermal aspects, but it was also adjusted to improve its observed thermal performance. For example, the DC-link capacitance (c3) was increased from 4700uF to 22000uF, to allow a reduced DC-link operating voltage (i.e. to improve efficiency) while avoiding regulation drop-out at AC zero-crossings under heavy load conditions.</p> About text formats Tags 5V Regulator, 5AMC7805Belectro-thermal Select a tag from the list or create your own.Drag to re-order taxonomy terms. License - None - What's this? Design Titleby User-1705420952 × Embed Design Copy Embed Code <iframe allowfullscreen="true" referrerpolicy="origin-when-cross-origin" frameborder="0" width="100%" height="720" scrolling="no" src="https://explore.partquest.com/embed-design/630244"></iframe> Embed Live Design Copy Embed Code <iframe allowfullscreen="true" referrerpolicy="origin-when-cross-origin" frameborder="0" width="100%" height="720" scrolling="no" src="https://explore.partquest.com/node/630244"></iframe> Share a Link Copy URL https://explore.partquest.com/node/630244 Copy of Electro-thermal Trade-off Analysis for AC-DC Converter with Current Boost Regulator - on Wed, 11/15/2023 - 15:59 User-1700074806Designer251302 × User-1700074806 Member for 4 months 1 week 2 designs 1 groups Title Description <p>This example shows the capability of modeling the electrothermal aspects of power dissipating circuits. The design is a 5V regulator (non-switching), driven from a 120 Vac/60 Hz input and using a transformer/rectifier circuit to step down to a much lower DC-link voltage.</p> <p>The load current capability is 5A, which is well above the current limit of the linear regular component itself. This is thanks to the load sharing role of the bypass PNP transistor. The design is based on an example application circuit shown in Figure 11 of the On Semiconductor Datasheet MC7800/D, November 2014 - Rev. 27.</p> <p>All of the power dissipating electronics' models are from the "Thermal and Electro-thermal" Components Library. They have a thermal port that connects to the thermal network (i.e. red wires). These models output all the power dissipated in the device as a thermal heat-flow into that network. This includes the rectifier diodes, the linear regulator and the BJT, as well as the current sense resistor and the effective winding resistances of the transformer primary and secondary.</p> <p>The thermal network includes the heat-sink's heat capacitance (0.1 J/degC) and heat transfer resistance to the ambient (1 degC/Watt), as well as the datasheet published values for the junction-to-lead thermal resistances of all the active electronic components. An assumed value for the thermal capacitance of the BJT (0.005 J/degC, not provided by the manufacturer) was added for purposes of illustration. Obtaining the actual value would require deeper analysis or measurement of this important component characteristic. However, in this example, both thermal capacitance values were selected solely to give sufficiently fast thermal time constants, so that steady-state operating temperatures could be reached with minimal simulation time.</p> <p>This design is based on another shared design:</p> <p>"https://www.systemvision.com/design/ac-dc-power-adapter-current-boost-regulator", That design has been modified not only to add the electrothermal aspects, but it was also adjusted to improve its observed thermal performance. For example, the DC-link capacitance (c3) was increased from 4700uF to 22000uF, to allow a reduced DC-link operating voltage (i.e. to improve efficiency) while avoiding regulation drop-out at AC zero-crossings under heavy load conditions.</p> About text formats Tags 5V Regulator, 5AMC7805Belectro-thermal Select a tag from the list or create your own.Drag to re-order taxonomy terms. License - None - What's this? Design Titleby User-1700074806 × Embed Design Copy Embed Code <iframe allowfullscreen="true" referrerpolicy="origin-when-cross-origin" frameborder="0" width="100%" height="720" scrolling="no" src="https://explore.partquest.com/embed-design/620595"></iframe> Embed Live Design Copy Embed Code <iframe allowfullscreen="true" referrerpolicy="origin-when-cross-origin" frameborder="0" width="100%" height="720" scrolling="no" src="https://explore.partquest.com/node/620595"></iframe> Share a Link Copy URL https://explore.partquest.com/node/620595 Copy of AC-DC Power Adapter With Current Boost Regulator - on Tue, 11/07/2023 - 17:28 User-1688571739Designer247180 × User-1688571739 Member for 8 months 3 weeks 6 designs 2 groups Title Description <p>This 5V regulator circuit provides 5A load current capability, well above the current limit of the linear regular component itself. This is thanks to the load sharing role of the bypass PNP transistor.</p> <p>The circuit is shown with a household 120 V. AC input, with a transformer and rectifier circuit, attempting to approximate a 12V automotive input voltage level. The design is based on an example application circuit shown in Figure 11 of the On Semiconductor Datasheet MC7800/D, November 2014 - Rev. 27. This executable design can be used to assess line and load transients, efficiency, PSRR vs. Frequency, etc. It can also be used for selecting the peripheral circuit components to achieve the desired performance.</p> <p>See also http://www.systemvision.com/design/ac-dc-power-adapter for a lower power level circuit.</p> About text formats Tags 5V Regulator, 5AMC7805Bboost Select a tag from the list or create your own.Drag to re-order taxonomy terms. License - None - What's this? Design Titleby User-1688571739 × Embed Design Copy Embed Code <iframe allowfullscreen="true" referrerpolicy="origin-when-cross-origin" frameborder="0" width="100%" height="720" scrolling="no" src="https://explore.partquest.com/embed-design/619487"></iframe> Embed Live Design Copy Embed Code <iframe allowfullscreen="true" referrerpolicy="origin-when-cross-origin" frameborder="0" width="100%" height="720" scrolling="no" src="https://explore.partquest.com/node/619487"></iframe> Share a Link Copy URL https://explore.partquest.com/node/619487 Copy of AC-DC Power Adapter With Current Boost Regulator - on Tue, 11/07/2023 - 17:15 User-1688571739Designer247180 × User-1688571739 Member for 8 months 3 weeks 6 designs 2 groups Title Description <p>This 5V regulator circuit provides 5A load current capability, well above the current limit of the linear regular component itself. This is thanks to the load sharing role of the bypass PNP transistor.</p> <p>The circuit is shown with a household 120 V. AC input, with a transformer and rectifier circuit, attempting to approximate a 12V automotive input voltage level. The design is based on an example application circuit shown in Figure 11 of the On Semiconductor Datasheet MC7800/D, November 2014 - Rev. 27. This executable design can be used to assess line and load transients, efficiency, PSRR vs. Frequency, etc. It can also be used for selecting the peripheral circuit components to achieve the desired performance.</p> <p>See also http://www.systemvision.com/design/ac-dc-power-adapter for a lower power level circuit.</p> About text formats Tags 5V Regulator, 5AMC7805Bboost Select a tag from the list or create your own.Drag to re-order taxonomy terms. License - None - What's this? Design Titleby User-1688571739 × Embed Design Copy Embed Code <iframe allowfullscreen="true" referrerpolicy="origin-when-cross-origin" frameborder="0" width="100%" height="720" scrolling="no" src="https://explore.partquest.com/embed-design/619484"></iframe> Embed Live Design Copy Embed Code <iframe allowfullscreen="true" referrerpolicy="origin-when-cross-origin" frameborder="0" width="100%" height="720" scrolling="no" src="https://explore.partquest.com/node/619484"></iframe> Share a Link Copy URL https://explore.partquest.com/node/619484 Copy of Thermal Modeling of AC-DC Power Adapter With Current Boost Regulator - on Sat, 08/26/2023 - 07:03 User-1693043499Designer248925 × User-1693043499 Member for 7 months 1 designs 1 groups Title Description <p>This example shows the capability of modeling the electrothermal aspects of power dissipating circuits. The design is a 5V regulator (non-switching), driven from a 120 Vac/60 Hz input and using a transformer/rectifier circuit to step down to a much lower DC-link voltage.</p> <p>The load current capability is 5A, which is well above the current limit of the linear regular component itself. This is thanks to the load sharing role of the bypass PNP transistor. The design is based on an example application circuit shown in Figure 11 of the On Semiconductor Datasheet MC7800/D, November 2014 - Rev. 27.</p> <p>All of the power dissipating electronics' models are from the "Thermal and Electro-thermal" Components Library. They have a thermal port that connects to the thermal network (i.e. red wires). These models output all the power dissipated in the device as a thermal heat-flow into that network. This includes the rectifier diodes, the linear regulator and the BJT, as well as the current sense resistor and the effective winding resistances of the transformer primary and secondary.</p> <p>The thermal network includes the heat-sink's heat capacitance (0.1 J/degC) and heat transfer resistance to the ambient (1 degC/Watt), as well as the datasheet published values for the junction-to-lead thermal resistances of all the active electronic components. An assumed value for the thermal capacitance of the BJT (0.005 J/degC, not provided by the manufacturer) was added for purposes of illustration. Obtaining the actual value would require deeper analysis or measurement of this important component characteristic. However, in this example, both thermal capacitance values were selected solely to give sufficiently fast thermal time constants, so that steady-state operating temperatures could be reached with minimal simulation time.</p> <p>This design is based on another shared design:</p> <p>"https://www.systemvision.com/design/ac-dc-power-adapter-current-boost-regulator", That design has been modified not only to add the electrothermal aspects, but it was also adjusted to improve its observed thermal performance. For example, the DC-link capacitance (c3) was increased from 4700uF to 22000uF, to allow a reduced DC-link operating voltage (i.e. to improve efficiency) while avoiding regulation drop-out at AC zero-crossings under heavy load conditions.</p> About text formats Tags 5V Regulator, 5AMC7805Belectro-thermal Select a tag from the list or create your own.Drag to re-order taxonomy terms. License - None - What's this? Design Titleby User-1693043499 × Embed Design Copy Embed Code <iframe allowfullscreen="true" referrerpolicy="origin-when-cross-origin" frameborder="0" width="100%" height="720" scrolling="no" src="https://explore.partquest.com/embed-design/607640"></iframe> Embed Live Design Copy Embed Code <iframe allowfullscreen="true" referrerpolicy="origin-when-cross-origin" frameborder="0" width="100%" height="720" scrolling="no" src="https://explore.partquest.com/node/607640"></iframe> Share a Link Copy URL https://explore.partquest.com/node/607640 Copy of AC-DC Power Adapter With Current Boost Regulator - on Tue, 08/22/2023 - 21:14 dgb.dgb.100Designer132741 × dgb.dgb.100 Member for 6 years 9 months 17 designs 1 groups Title Description <p>This 5V regulator circuit provides 5A load current capability, well above the current limit of the linear regular component itself. This is thanks to the load sharing role of the bypass PNP transistor.</p> <p>The circuit is shown with a household 120 V. AC input, with a transformer and rectifier circuit, attempting to approximate a 12V automotive input voltage level. The design is based on an example application circuit shown in Figure 11 of the On Semiconductor Datasheet MC7800/D, November 2014 - Rev. 27. This executable design can be used to assess line and load transients, efficiency, PSRR vs. Frequency, etc. It can also be used for selecting the peripheral circuit components to achieve the desired performance.</p> <p>See also http://www.systemvision.com/design/ac-dc-power-adapter for a lower power level circuit.</p> About text formats Tags 5V Regulator, 5AMC7805Bboost Select a tag from the list or create your own.Drag to re-order taxonomy terms. License - None - What's this? Design Titleby dgb.dgb.100 × Embed Design Copy Embed Code <iframe allowfullscreen="true" referrerpolicy="origin-when-cross-origin" frameborder="0" width="100%" height="720" scrolling="no" src="https://explore.partquest.com/embed-design/606422"></iframe> Embed Live Design Copy Embed Code <iframe allowfullscreen="true" referrerpolicy="origin-when-cross-origin" frameborder="0" width="100%" height="720" scrolling="no" src="https://explore.partquest.com/node/606422"></iframe> Share a Link Copy URL https://explore.partquest.com/node/606422 Copy of Electro-thermal Trade-off Analysis for AC-DC Converter with Current Boost Regulator - on Sat, 07/15/2023 - 16:15 User-1689304908Designer247512 × User-1689304908 Member for 8 months 2 weeks 5 designs 1 groups Title Description <p>This example shows the capability of modeling the electrothermal aspects of power dissipating circuits. The design is a 5V regulator (non-switching), driven from a 120 Vac/60 Hz input and using a transformer/rectifier circuit to step down to a much lower DC-link voltage.</p> <p>The load current capability is 5A, which is well above the current limit of the linear regular component itself. This is thanks to the load sharing role of the bypass PNP transistor. The design is based on an example application circuit shown in Figure 11 of the On Semiconductor Datasheet MC7800/D, November 2014 - Rev. 27.</p> <p>All of the power dissipating electronics' models are from the "Thermal and Electro-thermal" Components Library. They have a thermal port that connects to the thermal network (i.e. red wires). These models output all the power dissipated in the device as a thermal heat-flow into that network. This includes the rectifier diodes, the linear regulator and the BJT, as well as the current sense resistor and the effective winding resistances of the transformer primary and secondary.</p> <p>The thermal network includes the heat-sink's heat capacitance (0.1 J/degC) and heat transfer resistance to the ambient (1 degC/Watt), as well as the datasheet published values for the junction-to-lead thermal resistances of all the active electronic components. An assumed value for the thermal capacitance of the BJT (0.005 J/degC, not provided by the manufacturer) was added for purposes of illustration. Obtaining the actual value would require deeper analysis or measurement of this important component characteristic. However, in this example, both thermal capacitance values were selected solely to give sufficiently fast thermal time constants, so that steady-state operating temperatures could be reached with minimal simulation time.</p> <p>This design is based on another shared design:</p> <p>"https://www.systemvision.com/design/ac-dc-power-adapter-current-boost-regulator", That design has been modified not only to add the electrothermal aspects, but it was also adjusted to improve its observed thermal performance. For example, the DC-link capacitance (c3) was increased from 4700uF to 22000uF, to allow a reduced DC-link operating voltage (i.e. to improve efficiency) while avoiding regulation drop-out at AC zero-crossings under heavy load conditions.</p> About text formats Tags 5V Regulator, 5AMC7805Belectro-thermal Select a tag from the list or create your own.Drag to re-order taxonomy terms. License - None - What's this? Design Titleby User-1689304908 × Embed Design Copy Embed Code <iframe allowfullscreen="true" referrerpolicy="origin-when-cross-origin" frameborder="0" width="100%" height="720" scrolling="no" src="https://explore.partquest.com/embed-design/601278"></iframe> Embed Live Design Copy Embed Code <iframe allowfullscreen="true" referrerpolicy="origin-when-cross-origin" frameborder="0" width="100%" height="720" scrolling="no" src="https://explore.partquest.com/node/601278"></iframe> Share a Link Copy URL https://explore.partquest.com/node/601278 Pagination Page 1 Next page ››
Copy of Electro-thermal Trade-off Analysis for AC-DC Converter with Current Boost Regulator - on Wed, 11/15/2023 - 15:59 User-1700074806Designer251302 × User-1700074806 Member for 4 months 1 week 2 designs 1 groups Title Description <p>This example shows the capability of modeling the electrothermal aspects of power dissipating circuits. The design is a 5V regulator (non-switching), driven from a 120 Vac/60 Hz input and using a transformer/rectifier circuit to step down to a much lower DC-link voltage.</p> <p>The load current capability is 5A, which is well above the current limit of the linear regular component itself. This is thanks to the load sharing role of the bypass PNP transistor. The design is based on an example application circuit shown in Figure 11 of the On Semiconductor Datasheet MC7800/D, November 2014 - Rev. 27.</p> <p>All of the power dissipating electronics' models are from the "Thermal and Electro-thermal" Components Library. They have a thermal port that connects to the thermal network (i.e. red wires). These models output all the power dissipated in the device as a thermal heat-flow into that network. This includes the rectifier diodes, the linear regulator and the BJT, as well as the current sense resistor and the effective winding resistances of the transformer primary and secondary.</p> <p>The thermal network includes the heat-sink's heat capacitance (0.1 J/degC) and heat transfer resistance to the ambient (1 degC/Watt), as well as the datasheet published values for the junction-to-lead thermal resistances of all the active electronic components. An assumed value for the thermal capacitance of the BJT (0.005 J/degC, not provided by the manufacturer) was added for purposes of illustration. Obtaining the actual value would require deeper analysis or measurement of this important component characteristic. However, in this example, both thermal capacitance values were selected solely to give sufficiently fast thermal time constants, so that steady-state operating temperatures could be reached with minimal simulation time.</p> <p>This design is based on another shared design:</p> <p>"https://www.systemvision.com/design/ac-dc-power-adapter-current-boost-regulator", That design has been modified not only to add the electrothermal aspects, but it was also adjusted to improve its observed thermal performance. For example, the DC-link capacitance (c3) was increased from 4700uF to 22000uF, to allow a reduced DC-link operating voltage (i.e. to improve efficiency) while avoiding regulation drop-out at AC zero-crossings under heavy load conditions.</p> About text formats Tags 5V Regulator, 5AMC7805Belectro-thermal Select a tag from the list or create your own.Drag to re-order taxonomy terms. License - None - What's this? Design Titleby User-1700074806 × Embed Design Copy Embed Code <iframe allowfullscreen="true" referrerpolicy="origin-when-cross-origin" frameborder="0" width="100%" height="720" scrolling="no" src="https://explore.partquest.com/embed-design/620595"></iframe> Embed Live Design Copy Embed Code <iframe allowfullscreen="true" referrerpolicy="origin-when-cross-origin" frameborder="0" width="100%" height="720" scrolling="no" src="https://explore.partquest.com/node/620595"></iframe> Share a Link Copy URL https://explore.partquest.com/node/620595 Copy of AC-DC Power Adapter With Current Boost Regulator - on Tue, 11/07/2023 - 17:28 User-1688571739Designer247180 × User-1688571739 Member for 8 months 3 weeks 6 designs 2 groups Title Description <p>This 5V regulator circuit provides 5A load current capability, well above the current limit of the linear regular component itself. This is thanks to the load sharing role of the bypass PNP transistor.</p> <p>The circuit is shown with a household 120 V. AC input, with a transformer and rectifier circuit, attempting to approximate a 12V automotive input voltage level. The design is based on an example application circuit shown in Figure 11 of the On Semiconductor Datasheet MC7800/D, November 2014 - Rev. 27. This executable design can be used to assess line and load transients, efficiency, PSRR vs. Frequency, etc. It can also be used for selecting the peripheral circuit components to achieve the desired performance.</p> <p>See also http://www.systemvision.com/design/ac-dc-power-adapter for a lower power level circuit.</p> About text formats Tags 5V Regulator, 5AMC7805Bboost Select a tag from the list or create your own.Drag to re-order taxonomy terms. License - None - What's this? Design Titleby User-1688571739 × Embed Design Copy Embed Code <iframe allowfullscreen="true" referrerpolicy="origin-when-cross-origin" frameborder="0" width="100%" height="720" scrolling="no" src="https://explore.partquest.com/embed-design/619487"></iframe> Embed Live Design Copy Embed Code <iframe allowfullscreen="true" referrerpolicy="origin-when-cross-origin" frameborder="0" width="100%" height="720" scrolling="no" src="https://explore.partquest.com/node/619487"></iframe> Share a Link Copy URL https://explore.partquest.com/node/619487 Copy of AC-DC Power Adapter With Current Boost Regulator - on Tue, 11/07/2023 - 17:15 User-1688571739Designer247180 × User-1688571739 Member for 8 months 3 weeks 6 designs 2 groups Title Description <p>This 5V regulator circuit provides 5A load current capability, well above the current limit of the linear regular component itself. This is thanks to the load sharing role of the bypass PNP transistor.</p> <p>The circuit is shown with a household 120 V. AC input, with a transformer and rectifier circuit, attempting to approximate a 12V automotive input voltage level. The design is based on an example application circuit shown in Figure 11 of the On Semiconductor Datasheet MC7800/D, November 2014 - Rev. 27. This executable design can be used to assess line and load transients, efficiency, PSRR vs. Frequency, etc. It can also be used for selecting the peripheral circuit components to achieve the desired performance.</p> <p>See also http://www.systemvision.com/design/ac-dc-power-adapter for a lower power level circuit.</p> About text formats Tags 5V Regulator, 5AMC7805Bboost Select a tag from the list or create your own.Drag to re-order taxonomy terms. License - None - What's this? Design Titleby User-1688571739 × Embed Design Copy Embed Code <iframe allowfullscreen="true" referrerpolicy="origin-when-cross-origin" frameborder="0" width="100%" height="720" scrolling="no" src="https://explore.partquest.com/embed-design/619484"></iframe> Embed Live Design Copy Embed Code <iframe allowfullscreen="true" referrerpolicy="origin-when-cross-origin" frameborder="0" width="100%" height="720" scrolling="no" src="https://explore.partquest.com/node/619484"></iframe> Share a Link Copy URL https://explore.partquest.com/node/619484 Copy of Thermal Modeling of AC-DC Power Adapter With Current Boost Regulator - on Sat, 08/26/2023 - 07:03 User-1693043499Designer248925 × User-1693043499 Member for 7 months 1 designs 1 groups Title Description <p>This example shows the capability of modeling the electrothermal aspects of power dissipating circuits. The design is a 5V regulator (non-switching), driven from a 120 Vac/60 Hz input and using a transformer/rectifier circuit to step down to a much lower DC-link voltage.</p> <p>The load current capability is 5A, which is well above the current limit of the linear regular component itself. This is thanks to the load sharing role of the bypass PNP transistor. The design is based on an example application circuit shown in Figure 11 of the On Semiconductor Datasheet MC7800/D, November 2014 - Rev. 27.</p> <p>All of the power dissipating electronics' models are from the "Thermal and Electro-thermal" Components Library. They have a thermal port that connects to the thermal network (i.e. red wires). These models output all the power dissipated in the device as a thermal heat-flow into that network. This includes the rectifier diodes, the linear regulator and the BJT, as well as the current sense resistor and the effective winding resistances of the transformer primary and secondary.</p> <p>The thermal network includes the heat-sink's heat capacitance (0.1 J/degC) and heat transfer resistance to the ambient (1 degC/Watt), as well as the datasheet published values for the junction-to-lead thermal resistances of all the active electronic components. An assumed value for the thermal capacitance of the BJT (0.005 J/degC, not provided by the manufacturer) was added for purposes of illustration. Obtaining the actual value would require deeper analysis or measurement of this important component characteristic. However, in this example, both thermal capacitance values were selected solely to give sufficiently fast thermal time constants, so that steady-state operating temperatures could be reached with minimal simulation time.</p> <p>This design is based on another shared design:</p> <p>"https://www.systemvision.com/design/ac-dc-power-adapter-current-boost-regulator", That design has been modified not only to add the electrothermal aspects, but it was also adjusted to improve its observed thermal performance. For example, the DC-link capacitance (c3) was increased from 4700uF to 22000uF, to allow a reduced DC-link operating voltage (i.e. to improve efficiency) while avoiding regulation drop-out at AC zero-crossings under heavy load conditions.</p> About text formats Tags 5V Regulator, 5AMC7805Belectro-thermal Select a tag from the list or create your own.Drag to re-order taxonomy terms. License - None - What's this? Design Titleby User-1693043499 × Embed Design Copy Embed Code <iframe allowfullscreen="true" referrerpolicy="origin-when-cross-origin" frameborder="0" width="100%" height="720" scrolling="no" src="https://explore.partquest.com/embed-design/607640"></iframe> Embed Live Design Copy Embed Code <iframe allowfullscreen="true" referrerpolicy="origin-when-cross-origin" frameborder="0" width="100%" height="720" scrolling="no" src="https://explore.partquest.com/node/607640"></iframe> Share a Link Copy URL https://explore.partquest.com/node/607640 Copy of AC-DC Power Adapter With Current Boost Regulator - on Tue, 08/22/2023 - 21:14 dgb.dgb.100Designer132741 × dgb.dgb.100 Member for 6 years 9 months 17 designs 1 groups Title Description <p>This 5V regulator circuit provides 5A load current capability, well above the current limit of the linear regular component itself. This is thanks to the load sharing role of the bypass PNP transistor.</p> <p>The circuit is shown with a household 120 V. AC input, with a transformer and rectifier circuit, attempting to approximate a 12V automotive input voltage level. The design is based on an example application circuit shown in Figure 11 of the On Semiconductor Datasheet MC7800/D, November 2014 - Rev. 27. This executable design can be used to assess line and load transients, efficiency, PSRR vs. Frequency, etc. It can also be used for selecting the peripheral circuit components to achieve the desired performance.</p> <p>See also http://www.systemvision.com/design/ac-dc-power-adapter for a lower power level circuit.</p> About text formats Tags 5V Regulator, 5AMC7805Bboost Select a tag from the list or create your own.Drag to re-order taxonomy terms. License - None - What's this? Design Titleby dgb.dgb.100 × Embed Design Copy Embed Code <iframe allowfullscreen="true" referrerpolicy="origin-when-cross-origin" frameborder="0" width="100%" height="720" scrolling="no" src="https://explore.partquest.com/embed-design/606422"></iframe> Embed Live Design Copy Embed Code <iframe allowfullscreen="true" referrerpolicy="origin-when-cross-origin" frameborder="0" width="100%" height="720" scrolling="no" src="https://explore.partquest.com/node/606422"></iframe> Share a Link Copy URL https://explore.partquest.com/node/606422 Copy of Electro-thermal Trade-off Analysis for AC-DC Converter with Current Boost Regulator - on Sat, 07/15/2023 - 16:15 User-1689304908Designer247512 × User-1689304908 Member for 8 months 2 weeks 5 designs 1 groups Title Description <p>This example shows the capability of modeling the electrothermal aspects of power dissipating circuits. The design is a 5V regulator (non-switching), driven from a 120 Vac/60 Hz input and using a transformer/rectifier circuit to step down to a much lower DC-link voltage.</p> <p>The load current capability is 5A, which is well above the current limit of the linear regular component itself. This is thanks to the load sharing role of the bypass PNP transistor. The design is based on an example application circuit shown in Figure 11 of the On Semiconductor Datasheet MC7800/D, November 2014 - Rev. 27.</p> <p>All of the power dissipating electronics' models are from the "Thermal and Electro-thermal" Components Library. They have a thermal port that connects to the thermal network (i.e. red wires). These models output all the power dissipated in the device as a thermal heat-flow into that network. This includes the rectifier diodes, the linear regulator and the BJT, as well as the current sense resistor and the effective winding resistances of the transformer primary and secondary.</p> <p>The thermal network includes the heat-sink's heat capacitance (0.1 J/degC) and heat transfer resistance to the ambient (1 degC/Watt), as well as the datasheet published values for the junction-to-lead thermal resistances of all the active electronic components. An assumed value for the thermal capacitance of the BJT (0.005 J/degC, not provided by the manufacturer) was added for purposes of illustration. Obtaining the actual value would require deeper analysis or measurement of this important component characteristic. However, in this example, both thermal capacitance values were selected solely to give sufficiently fast thermal time constants, so that steady-state operating temperatures could be reached with minimal simulation time.</p> <p>This design is based on another shared design:</p> <p>"https://www.systemvision.com/design/ac-dc-power-adapter-current-boost-regulator", That design has been modified not only to add the electrothermal aspects, but it was also adjusted to improve its observed thermal performance. For example, the DC-link capacitance (c3) was increased from 4700uF to 22000uF, to allow a reduced DC-link operating voltage (i.e. to improve efficiency) while avoiding regulation drop-out at AC zero-crossings under heavy load conditions.</p> About text formats Tags 5V Regulator, 5AMC7805Belectro-thermal Select a tag from the list or create your own.Drag to re-order taxonomy terms. License - None - What's this? Design Titleby User-1689304908 × Embed Design Copy Embed Code <iframe allowfullscreen="true" referrerpolicy="origin-when-cross-origin" frameborder="0" width="100%" height="720" scrolling="no" src="https://explore.partquest.com/embed-design/601278"></iframe> Embed Live Design Copy Embed Code <iframe allowfullscreen="true" referrerpolicy="origin-when-cross-origin" frameborder="0" width="100%" height="720" scrolling="no" src="https://explore.partquest.com/node/601278"></iframe> Share a Link Copy URL https://explore.partquest.com/node/601278 Pagination Page 1 Next page ››
Copy of AC-DC Power Adapter With Current Boost Regulator - on Tue, 11/07/2023 - 17:28 User-1688571739Designer247180 × User-1688571739 Member for 8 months 3 weeks 6 designs 2 groups Title Description <p>This 5V regulator circuit provides 5A load current capability, well above the current limit of the linear regular component itself. This is thanks to the load sharing role of the bypass PNP transistor.</p> <p>The circuit is shown with a household 120 V. AC input, with a transformer and rectifier circuit, attempting to approximate a 12V automotive input voltage level. The design is based on an example application circuit shown in Figure 11 of the On Semiconductor Datasheet MC7800/D, November 2014 - Rev. 27. This executable design can be used to assess line and load transients, efficiency, PSRR vs. Frequency, etc. It can also be used for selecting the peripheral circuit components to achieve the desired performance.</p> <p>See also http://www.systemvision.com/design/ac-dc-power-adapter for a lower power level circuit.</p> About text formats Tags 5V Regulator, 5AMC7805Bboost Select a tag from the list or create your own.Drag to re-order taxonomy terms. License - None - What's this? Design Titleby User-1688571739 × Embed Design Copy Embed Code <iframe allowfullscreen="true" referrerpolicy="origin-when-cross-origin" frameborder="0" width="100%" height="720" scrolling="no" src="https://explore.partquest.com/embed-design/619487"></iframe> Embed Live Design Copy Embed Code <iframe allowfullscreen="true" referrerpolicy="origin-when-cross-origin" frameborder="0" width="100%" height="720" scrolling="no" src="https://explore.partquest.com/node/619487"></iframe> Share a Link Copy URL https://explore.partquest.com/node/619487 Copy of AC-DC Power Adapter With Current Boost Regulator - on Tue, 11/07/2023 - 17:15 User-1688571739Designer247180 × User-1688571739 Member for 8 months 3 weeks 6 designs 2 groups Title Description <p>This 5V regulator circuit provides 5A load current capability, well above the current limit of the linear regular component itself. This is thanks to the load sharing role of the bypass PNP transistor.</p> <p>The circuit is shown with a household 120 V. AC input, with a transformer and rectifier circuit, attempting to approximate a 12V automotive input voltage level. The design is based on an example application circuit shown in Figure 11 of the On Semiconductor Datasheet MC7800/D, November 2014 - Rev. 27. This executable design can be used to assess line and load transients, efficiency, PSRR vs. Frequency, etc. It can also be used for selecting the peripheral circuit components to achieve the desired performance.</p> <p>See also http://www.systemvision.com/design/ac-dc-power-adapter for a lower power level circuit.</p> About text formats Tags 5V Regulator, 5AMC7805Bboost Select a tag from the list or create your own.Drag to re-order taxonomy terms. License - None - What's this? Design Titleby User-1688571739 × Embed Design Copy Embed Code <iframe allowfullscreen="true" referrerpolicy="origin-when-cross-origin" frameborder="0" width="100%" height="720" scrolling="no" src="https://explore.partquest.com/embed-design/619484"></iframe> Embed Live Design Copy Embed Code <iframe allowfullscreen="true" referrerpolicy="origin-when-cross-origin" frameborder="0" width="100%" height="720" scrolling="no" src="https://explore.partquest.com/node/619484"></iframe> Share a Link Copy URL https://explore.partquest.com/node/619484 Copy of Thermal Modeling of AC-DC Power Adapter With Current Boost Regulator - on Sat, 08/26/2023 - 07:03 User-1693043499Designer248925 × User-1693043499 Member for 7 months 1 designs 1 groups Title Description <p>This example shows the capability of modeling the electrothermal aspects of power dissipating circuits. The design is a 5V regulator (non-switching), driven from a 120 Vac/60 Hz input and using a transformer/rectifier circuit to step down to a much lower DC-link voltage.</p> <p>The load current capability is 5A, which is well above the current limit of the linear regular component itself. This is thanks to the load sharing role of the bypass PNP transistor. The design is based on an example application circuit shown in Figure 11 of the On Semiconductor Datasheet MC7800/D, November 2014 - Rev. 27.</p> <p>All of the power dissipating electronics' models are from the "Thermal and Electro-thermal" Components Library. They have a thermal port that connects to the thermal network (i.e. red wires). These models output all the power dissipated in the device as a thermal heat-flow into that network. This includes the rectifier diodes, the linear regulator and the BJT, as well as the current sense resistor and the effective winding resistances of the transformer primary and secondary.</p> <p>The thermal network includes the heat-sink's heat capacitance (0.1 J/degC) and heat transfer resistance to the ambient (1 degC/Watt), as well as the datasheet published values for the junction-to-lead thermal resistances of all the active electronic components. An assumed value for the thermal capacitance of the BJT (0.005 J/degC, not provided by the manufacturer) was added for purposes of illustration. Obtaining the actual value would require deeper analysis or measurement of this important component characteristic. However, in this example, both thermal capacitance values were selected solely to give sufficiently fast thermal time constants, so that steady-state operating temperatures could be reached with minimal simulation time.</p> <p>This design is based on another shared design:</p> <p>"https://www.systemvision.com/design/ac-dc-power-adapter-current-boost-regulator", That design has been modified not only to add the electrothermal aspects, but it was also adjusted to improve its observed thermal performance. For example, the DC-link capacitance (c3) was increased from 4700uF to 22000uF, to allow a reduced DC-link operating voltage (i.e. to improve efficiency) while avoiding regulation drop-out at AC zero-crossings under heavy load conditions.</p> About text formats Tags 5V Regulator, 5AMC7805Belectro-thermal Select a tag from the list or create your own.Drag to re-order taxonomy terms. License - None - What's this? Design Titleby User-1693043499 × Embed Design Copy Embed Code <iframe allowfullscreen="true" referrerpolicy="origin-when-cross-origin" frameborder="0" width="100%" height="720" scrolling="no" src="https://explore.partquest.com/embed-design/607640"></iframe> Embed Live Design Copy Embed Code <iframe allowfullscreen="true" referrerpolicy="origin-when-cross-origin" frameborder="0" width="100%" height="720" scrolling="no" src="https://explore.partquest.com/node/607640"></iframe> Share a Link Copy URL https://explore.partquest.com/node/607640 Copy of AC-DC Power Adapter With Current Boost Regulator - on Tue, 08/22/2023 - 21:14 dgb.dgb.100Designer132741 × dgb.dgb.100 Member for 6 years 9 months 17 designs 1 groups Title Description <p>This 5V regulator circuit provides 5A load current capability, well above the current limit of the linear regular component itself. This is thanks to the load sharing role of the bypass PNP transistor.</p> <p>The circuit is shown with a household 120 V. AC input, with a transformer and rectifier circuit, attempting to approximate a 12V automotive input voltage level. The design is based on an example application circuit shown in Figure 11 of the On Semiconductor Datasheet MC7800/D, November 2014 - Rev. 27. This executable design can be used to assess line and load transients, efficiency, PSRR vs. Frequency, etc. It can also be used for selecting the peripheral circuit components to achieve the desired performance.</p> <p>See also http://www.systemvision.com/design/ac-dc-power-adapter for a lower power level circuit.</p> About text formats Tags 5V Regulator, 5AMC7805Bboost Select a tag from the list or create your own.Drag to re-order taxonomy terms. License - None - What's this? Design Titleby dgb.dgb.100 × Embed Design Copy Embed Code <iframe allowfullscreen="true" referrerpolicy="origin-when-cross-origin" frameborder="0" width="100%" height="720" scrolling="no" src="https://explore.partquest.com/embed-design/606422"></iframe> Embed Live Design Copy Embed Code <iframe allowfullscreen="true" referrerpolicy="origin-when-cross-origin" frameborder="0" width="100%" height="720" scrolling="no" src="https://explore.partquest.com/node/606422"></iframe> Share a Link Copy URL https://explore.partquest.com/node/606422 Copy of Electro-thermal Trade-off Analysis for AC-DC Converter with Current Boost Regulator - on Sat, 07/15/2023 - 16:15 User-1689304908Designer247512 × User-1689304908 Member for 8 months 2 weeks 5 designs 1 groups Title Description <p>This example shows the capability of modeling the electrothermal aspects of power dissipating circuits. The design is a 5V regulator (non-switching), driven from a 120 Vac/60 Hz input and using a transformer/rectifier circuit to step down to a much lower DC-link voltage.</p> <p>The load current capability is 5A, which is well above the current limit of the linear regular component itself. This is thanks to the load sharing role of the bypass PNP transistor. The design is based on an example application circuit shown in Figure 11 of the On Semiconductor Datasheet MC7800/D, November 2014 - Rev. 27.</p> <p>All of the power dissipating electronics' models are from the "Thermal and Electro-thermal" Components Library. They have a thermal port that connects to the thermal network (i.e. red wires). These models output all the power dissipated in the device as a thermal heat-flow into that network. This includes the rectifier diodes, the linear regulator and the BJT, as well as the current sense resistor and the effective winding resistances of the transformer primary and secondary.</p> <p>The thermal network includes the heat-sink's heat capacitance (0.1 J/degC) and heat transfer resistance to the ambient (1 degC/Watt), as well as the datasheet published values for the junction-to-lead thermal resistances of all the active electronic components. An assumed value for the thermal capacitance of the BJT (0.005 J/degC, not provided by the manufacturer) was added for purposes of illustration. Obtaining the actual value would require deeper analysis or measurement of this important component characteristic. However, in this example, both thermal capacitance values were selected solely to give sufficiently fast thermal time constants, so that steady-state operating temperatures could be reached with minimal simulation time.</p> <p>This design is based on another shared design:</p> <p>"https://www.systemvision.com/design/ac-dc-power-adapter-current-boost-regulator", That design has been modified not only to add the electrothermal aspects, but it was also adjusted to improve its observed thermal performance. For example, the DC-link capacitance (c3) was increased from 4700uF to 22000uF, to allow a reduced DC-link operating voltage (i.e. to improve efficiency) while avoiding regulation drop-out at AC zero-crossings under heavy load conditions.</p> About text formats Tags 5V Regulator, 5AMC7805Belectro-thermal Select a tag from the list or create your own.Drag to re-order taxonomy terms. License - None - What's this? Design Titleby User-1689304908 × Embed Design Copy Embed Code <iframe allowfullscreen="true" referrerpolicy="origin-when-cross-origin" frameborder="0" width="100%" height="720" scrolling="no" src="https://explore.partquest.com/embed-design/601278"></iframe> Embed Live Design Copy Embed Code <iframe allowfullscreen="true" referrerpolicy="origin-when-cross-origin" frameborder="0" width="100%" height="720" scrolling="no" src="https://explore.partquest.com/node/601278"></iframe> Share a Link Copy URL https://explore.partquest.com/node/601278 Pagination Page 1 Next page ››
Copy of AC-DC Power Adapter With Current Boost Regulator - on Tue, 11/07/2023 - 17:15 User-1688571739Designer247180 × User-1688571739 Member for 8 months 3 weeks 6 designs 2 groups Title Description <p>This 5V regulator circuit provides 5A load current capability, well above the current limit of the linear regular component itself. This is thanks to the load sharing role of the bypass PNP transistor.</p> <p>The circuit is shown with a household 120 V. AC input, with a transformer and rectifier circuit, attempting to approximate a 12V automotive input voltage level. The design is based on an example application circuit shown in Figure 11 of the On Semiconductor Datasheet MC7800/D, November 2014 - Rev. 27. This executable design can be used to assess line and load transients, efficiency, PSRR vs. Frequency, etc. It can also be used for selecting the peripheral circuit components to achieve the desired performance.</p> <p>See also http://www.systemvision.com/design/ac-dc-power-adapter for a lower power level circuit.</p> About text formats Tags 5V Regulator, 5AMC7805Bboost Select a tag from the list or create your own.Drag to re-order taxonomy terms. License - None - What's this? Design Titleby User-1688571739 × Embed Design Copy Embed Code <iframe allowfullscreen="true" referrerpolicy="origin-when-cross-origin" frameborder="0" width="100%" height="720" scrolling="no" src="https://explore.partquest.com/embed-design/619484"></iframe> Embed Live Design Copy Embed Code <iframe allowfullscreen="true" referrerpolicy="origin-when-cross-origin" frameborder="0" width="100%" height="720" scrolling="no" src="https://explore.partquest.com/node/619484"></iframe> Share a Link Copy URL https://explore.partquest.com/node/619484 Copy of Thermal Modeling of AC-DC Power Adapter With Current Boost Regulator - on Sat, 08/26/2023 - 07:03 User-1693043499Designer248925 × User-1693043499 Member for 7 months 1 designs 1 groups Title Description <p>This example shows the capability of modeling the electrothermal aspects of power dissipating circuits. The design is a 5V regulator (non-switching), driven from a 120 Vac/60 Hz input and using a transformer/rectifier circuit to step down to a much lower DC-link voltage.</p> <p>The load current capability is 5A, which is well above the current limit of the linear regular component itself. This is thanks to the load sharing role of the bypass PNP transistor. The design is based on an example application circuit shown in Figure 11 of the On Semiconductor Datasheet MC7800/D, November 2014 - Rev. 27.</p> <p>All of the power dissipating electronics' models are from the "Thermal and Electro-thermal" Components Library. They have a thermal port that connects to the thermal network (i.e. red wires). These models output all the power dissipated in the device as a thermal heat-flow into that network. This includes the rectifier diodes, the linear regulator and the BJT, as well as the current sense resistor and the effective winding resistances of the transformer primary and secondary.</p> <p>The thermal network includes the heat-sink's heat capacitance (0.1 J/degC) and heat transfer resistance to the ambient (1 degC/Watt), as well as the datasheet published values for the junction-to-lead thermal resistances of all the active electronic components. An assumed value for the thermal capacitance of the BJT (0.005 J/degC, not provided by the manufacturer) was added for purposes of illustration. Obtaining the actual value would require deeper analysis or measurement of this important component characteristic. However, in this example, both thermal capacitance values were selected solely to give sufficiently fast thermal time constants, so that steady-state operating temperatures could be reached with minimal simulation time.</p> <p>This design is based on another shared design:</p> <p>"https://www.systemvision.com/design/ac-dc-power-adapter-current-boost-regulator", That design has been modified not only to add the electrothermal aspects, but it was also adjusted to improve its observed thermal performance. For example, the DC-link capacitance (c3) was increased from 4700uF to 22000uF, to allow a reduced DC-link operating voltage (i.e. to improve efficiency) while avoiding regulation drop-out at AC zero-crossings under heavy load conditions.</p> About text formats Tags 5V Regulator, 5AMC7805Belectro-thermal Select a tag from the list or create your own.Drag to re-order taxonomy terms. License - None - What's this? Design Titleby User-1693043499 × Embed Design Copy Embed Code <iframe allowfullscreen="true" referrerpolicy="origin-when-cross-origin" frameborder="0" width="100%" height="720" scrolling="no" src="https://explore.partquest.com/embed-design/607640"></iframe> Embed Live Design Copy Embed Code <iframe allowfullscreen="true" referrerpolicy="origin-when-cross-origin" frameborder="0" width="100%" height="720" scrolling="no" src="https://explore.partquest.com/node/607640"></iframe> Share a Link Copy URL https://explore.partquest.com/node/607640 Copy of AC-DC Power Adapter With Current Boost Regulator - on Tue, 08/22/2023 - 21:14 dgb.dgb.100Designer132741 × dgb.dgb.100 Member for 6 years 9 months 17 designs 1 groups Title Description <p>This 5V regulator circuit provides 5A load current capability, well above the current limit of the linear regular component itself. This is thanks to the load sharing role of the bypass PNP transistor.</p> <p>The circuit is shown with a household 120 V. AC input, with a transformer and rectifier circuit, attempting to approximate a 12V automotive input voltage level. The design is based on an example application circuit shown in Figure 11 of the On Semiconductor Datasheet MC7800/D, November 2014 - Rev. 27. This executable design can be used to assess line and load transients, efficiency, PSRR vs. Frequency, etc. It can also be used for selecting the peripheral circuit components to achieve the desired performance.</p> <p>See also http://www.systemvision.com/design/ac-dc-power-adapter for a lower power level circuit.</p> About text formats Tags 5V Regulator, 5AMC7805Bboost Select a tag from the list or create your own.Drag to re-order taxonomy terms. License - None - What's this? Design Titleby dgb.dgb.100 × Embed Design Copy Embed Code <iframe allowfullscreen="true" referrerpolicy="origin-when-cross-origin" frameborder="0" width="100%" height="720" scrolling="no" src="https://explore.partquest.com/embed-design/606422"></iframe> Embed Live Design Copy Embed Code <iframe allowfullscreen="true" referrerpolicy="origin-when-cross-origin" frameborder="0" width="100%" height="720" scrolling="no" src="https://explore.partquest.com/node/606422"></iframe> Share a Link Copy URL https://explore.partquest.com/node/606422 Copy of Electro-thermal Trade-off Analysis for AC-DC Converter with Current Boost Regulator - on Sat, 07/15/2023 - 16:15 User-1689304908Designer247512 × User-1689304908 Member for 8 months 2 weeks 5 designs 1 groups Title Description <p>This example shows the capability of modeling the electrothermal aspects of power dissipating circuits. The design is a 5V regulator (non-switching), driven from a 120 Vac/60 Hz input and using a transformer/rectifier circuit to step down to a much lower DC-link voltage.</p> <p>The load current capability is 5A, which is well above the current limit of the linear regular component itself. This is thanks to the load sharing role of the bypass PNP transistor. The design is based on an example application circuit shown in Figure 11 of the On Semiconductor Datasheet MC7800/D, November 2014 - Rev. 27.</p> <p>All of the power dissipating electronics' models are from the "Thermal and Electro-thermal" Components Library. They have a thermal port that connects to the thermal network (i.e. red wires). These models output all the power dissipated in the device as a thermal heat-flow into that network. This includes the rectifier diodes, the linear regulator and the BJT, as well as the current sense resistor and the effective winding resistances of the transformer primary and secondary.</p> <p>The thermal network includes the heat-sink's heat capacitance (0.1 J/degC) and heat transfer resistance to the ambient (1 degC/Watt), as well as the datasheet published values for the junction-to-lead thermal resistances of all the active electronic components. An assumed value for the thermal capacitance of the BJT (0.005 J/degC, not provided by the manufacturer) was added for purposes of illustration. Obtaining the actual value would require deeper analysis or measurement of this important component characteristic. However, in this example, both thermal capacitance values were selected solely to give sufficiently fast thermal time constants, so that steady-state operating temperatures could be reached with minimal simulation time.</p> <p>This design is based on another shared design:</p> <p>"https://www.systemvision.com/design/ac-dc-power-adapter-current-boost-regulator", That design has been modified not only to add the electrothermal aspects, but it was also adjusted to improve its observed thermal performance. For example, the DC-link capacitance (c3) was increased from 4700uF to 22000uF, to allow a reduced DC-link operating voltage (i.e. to improve efficiency) while avoiding regulation drop-out at AC zero-crossings under heavy load conditions.</p> About text formats Tags 5V Regulator, 5AMC7805Belectro-thermal Select a tag from the list or create your own.Drag to re-order taxonomy terms. License - None - What's this? Design Titleby User-1689304908 × Embed Design Copy Embed Code <iframe allowfullscreen="true" referrerpolicy="origin-when-cross-origin" frameborder="0" width="100%" height="720" scrolling="no" src="https://explore.partquest.com/embed-design/601278"></iframe> Embed Live Design Copy Embed Code <iframe allowfullscreen="true" referrerpolicy="origin-when-cross-origin" frameborder="0" width="100%" height="720" scrolling="no" src="https://explore.partquest.com/node/601278"></iframe> Share a Link Copy URL https://explore.partquest.com/node/601278 Pagination Page 1 Next page ››
Copy of Thermal Modeling of AC-DC Power Adapter With Current Boost Regulator - on Sat, 08/26/2023 - 07:03 User-1693043499Designer248925 × User-1693043499 Member for 7 months 1 designs 1 groups Title Description <p>This example shows the capability of modeling the electrothermal aspects of power dissipating circuits. The design is a 5V regulator (non-switching), driven from a 120 Vac/60 Hz input and using a transformer/rectifier circuit to step down to a much lower DC-link voltage.</p> <p>The load current capability is 5A, which is well above the current limit of the linear regular component itself. This is thanks to the load sharing role of the bypass PNP transistor. The design is based on an example application circuit shown in Figure 11 of the On Semiconductor Datasheet MC7800/D, November 2014 - Rev. 27.</p> <p>All of the power dissipating electronics' models are from the "Thermal and Electro-thermal" Components Library. They have a thermal port that connects to the thermal network (i.e. red wires). These models output all the power dissipated in the device as a thermal heat-flow into that network. This includes the rectifier diodes, the linear regulator and the BJT, as well as the current sense resistor and the effective winding resistances of the transformer primary and secondary.</p> <p>The thermal network includes the heat-sink's heat capacitance (0.1 J/degC) and heat transfer resistance to the ambient (1 degC/Watt), as well as the datasheet published values for the junction-to-lead thermal resistances of all the active electronic components. An assumed value for the thermal capacitance of the BJT (0.005 J/degC, not provided by the manufacturer) was added for purposes of illustration. Obtaining the actual value would require deeper analysis or measurement of this important component characteristic. However, in this example, both thermal capacitance values were selected solely to give sufficiently fast thermal time constants, so that steady-state operating temperatures could be reached with minimal simulation time.</p> <p>This design is based on another shared design:</p> <p>"https://www.systemvision.com/design/ac-dc-power-adapter-current-boost-regulator", That design has been modified not only to add the electrothermal aspects, but it was also adjusted to improve its observed thermal performance. For example, the DC-link capacitance (c3) was increased from 4700uF to 22000uF, to allow a reduced DC-link operating voltage (i.e. to improve efficiency) while avoiding regulation drop-out at AC zero-crossings under heavy load conditions.</p> About text formats Tags 5V Regulator, 5AMC7805Belectro-thermal Select a tag from the list or create your own.Drag to re-order taxonomy terms. License - None - What's this? Design Titleby User-1693043499 × Embed Design Copy Embed Code <iframe allowfullscreen="true" referrerpolicy="origin-when-cross-origin" frameborder="0" width="100%" height="720" scrolling="no" src="https://explore.partquest.com/embed-design/607640"></iframe> Embed Live Design Copy Embed Code <iframe allowfullscreen="true" referrerpolicy="origin-when-cross-origin" frameborder="0" width="100%" height="720" scrolling="no" src="https://explore.partquest.com/node/607640"></iframe> Share a Link Copy URL https://explore.partquest.com/node/607640 Copy of AC-DC Power Adapter With Current Boost Regulator - on Tue, 08/22/2023 - 21:14 dgb.dgb.100Designer132741 × dgb.dgb.100 Member for 6 years 9 months 17 designs 1 groups Title Description <p>This 5V regulator circuit provides 5A load current capability, well above the current limit of the linear regular component itself. This is thanks to the load sharing role of the bypass PNP transistor.</p> <p>The circuit is shown with a household 120 V. AC input, with a transformer and rectifier circuit, attempting to approximate a 12V automotive input voltage level. The design is based on an example application circuit shown in Figure 11 of the On Semiconductor Datasheet MC7800/D, November 2014 - Rev. 27. This executable design can be used to assess line and load transients, efficiency, PSRR vs. Frequency, etc. It can also be used for selecting the peripheral circuit components to achieve the desired performance.</p> <p>See also http://www.systemvision.com/design/ac-dc-power-adapter for a lower power level circuit.</p> About text formats Tags 5V Regulator, 5AMC7805Bboost Select a tag from the list or create your own.Drag to re-order taxonomy terms. License - None - What's this? Design Titleby dgb.dgb.100 × Embed Design Copy Embed Code <iframe allowfullscreen="true" referrerpolicy="origin-when-cross-origin" frameborder="0" width="100%" height="720" scrolling="no" src="https://explore.partquest.com/embed-design/606422"></iframe> Embed Live Design Copy Embed Code <iframe allowfullscreen="true" referrerpolicy="origin-when-cross-origin" frameborder="0" width="100%" height="720" scrolling="no" src="https://explore.partquest.com/node/606422"></iframe> Share a Link Copy URL https://explore.partquest.com/node/606422 Copy of Electro-thermal Trade-off Analysis for AC-DC Converter with Current Boost Regulator - on Sat, 07/15/2023 - 16:15 User-1689304908Designer247512 × User-1689304908 Member for 8 months 2 weeks 5 designs 1 groups Title Description <p>This example shows the capability of modeling the electrothermal aspects of power dissipating circuits. The design is a 5V regulator (non-switching), driven from a 120 Vac/60 Hz input and using a transformer/rectifier circuit to step down to a much lower DC-link voltage.</p> <p>The load current capability is 5A, which is well above the current limit of the linear regular component itself. This is thanks to the load sharing role of the bypass PNP transistor. The design is based on an example application circuit shown in Figure 11 of the On Semiconductor Datasheet MC7800/D, November 2014 - Rev. 27.</p> <p>All of the power dissipating electronics' models are from the "Thermal and Electro-thermal" Components Library. They have a thermal port that connects to the thermal network (i.e. red wires). These models output all the power dissipated in the device as a thermal heat-flow into that network. This includes the rectifier diodes, the linear regulator and the BJT, as well as the current sense resistor and the effective winding resistances of the transformer primary and secondary.</p> <p>The thermal network includes the heat-sink's heat capacitance (0.1 J/degC) and heat transfer resistance to the ambient (1 degC/Watt), as well as the datasheet published values for the junction-to-lead thermal resistances of all the active electronic components. An assumed value for the thermal capacitance of the BJT (0.005 J/degC, not provided by the manufacturer) was added for purposes of illustration. Obtaining the actual value would require deeper analysis or measurement of this important component characteristic. However, in this example, both thermal capacitance values were selected solely to give sufficiently fast thermal time constants, so that steady-state operating temperatures could be reached with minimal simulation time.</p> <p>This design is based on another shared design:</p> <p>"https://www.systemvision.com/design/ac-dc-power-adapter-current-boost-regulator", That design has been modified not only to add the electrothermal aspects, but it was also adjusted to improve its observed thermal performance. For example, the DC-link capacitance (c3) was increased from 4700uF to 22000uF, to allow a reduced DC-link operating voltage (i.e. to improve efficiency) while avoiding regulation drop-out at AC zero-crossings under heavy load conditions.</p> About text formats Tags 5V Regulator, 5AMC7805Belectro-thermal Select a tag from the list or create your own.Drag to re-order taxonomy terms. License - None - What's this? Design Titleby User-1689304908 × Embed Design Copy Embed Code <iframe allowfullscreen="true" referrerpolicy="origin-when-cross-origin" frameborder="0" width="100%" height="720" scrolling="no" src="https://explore.partquest.com/embed-design/601278"></iframe> Embed Live Design Copy Embed Code <iframe allowfullscreen="true" referrerpolicy="origin-when-cross-origin" frameborder="0" width="100%" height="720" scrolling="no" src="https://explore.partquest.com/node/601278"></iframe> Share a Link Copy URL https://explore.partquest.com/node/601278 Pagination Page 1 Next page ››
Copy of AC-DC Power Adapter With Current Boost Regulator - on Tue, 08/22/2023 - 21:14 dgb.dgb.100Designer132741 × dgb.dgb.100 Member for 6 years 9 months 17 designs 1 groups Title Description <p>This 5V regulator circuit provides 5A load current capability, well above the current limit of the linear regular component itself. This is thanks to the load sharing role of the bypass PNP transistor.</p> <p>The circuit is shown with a household 120 V. AC input, with a transformer and rectifier circuit, attempting to approximate a 12V automotive input voltage level. The design is based on an example application circuit shown in Figure 11 of the On Semiconductor Datasheet MC7800/D, November 2014 - Rev. 27. This executable design can be used to assess line and load transients, efficiency, PSRR vs. Frequency, etc. It can also be used for selecting the peripheral circuit components to achieve the desired performance.</p> <p>See also http://www.systemvision.com/design/ac-dc-power-adapter for a lower power level circuit.</p> About text formats Tags 5V Regulator, 5AMC7805Bboost Select a tag from the list or create your own.Drag to re-order taxonomy terms. License - None - What's this? Design Titleby dgb.dgb.100 × Embed Design Copy Embed Code <iframe allowfullscreen="true" referrerpolicy="origin-when-cross-origin" frameborder="0" width="100%" height="720" scrolling="no" src="https://explore.partquest.com/embed-design/606422"></iframe> Embed Live Design Copy Embed Code <iframe allowfullscreen="true" referrerpolicy="origin-when-cross-origin" frameborder="0" width="100%" height="720" scrolling="no" src="https://explore.partquest.com/node/606422"></iframe> Share a Link Copy URL https://explore.partquest.com/node/606422 Copy of Electro-thermal Trade-off Analysis for AC-DC Converter with Current Boost Regulator - on Sat, 07/15/2023 - 16:15 User-1689304908Designer247512 × User-1689304908 Member for 8 months 2 weeks 5 designs 1 groups Title Description <p>This example shows the capability of modeling the electrothermal aspects of power dissipating circuits. The design is a 5V regulator (non-switching), driven from a 120 Vac/60 Hz input and using a transformer/rectifier circuit to step down to a much lower DC-link voltage.</p> <p>The load current capability is 5A, which is well above the current limit of the linear regular component itself. This is thanks to the load sharing role of the bypass PNP transistor. The design is based on an example application circuit shown in Figure 11 of the On Semiconductor Datasheet MC7800/D, November 2014 - Rev. 27.</p> <p>All of the power dissipating electronics' models are from the "Thermal and Electro-thermal" Components Library. They have a thermal port that connects to the thermal network (i.e. red wires). These models output all the power dissipated in the device as a thermal heat-flow into that network. This includes the rectifier diodes, the linear regulator and the BJT, as well as the current sense resistor and the effective winding resistances of the transformer primary and secondary.</p> <p>The thermal network includes the heat-sink's heat capacitance (0.1 J/degC) and heat transfer resistance to the ambient (1 degC/Watt), as well as the datasheet published values for the junction-to-lead thermal resistances of all the active electronic components. An assumed value for the thermal capacitance of the BJT (0.005 J/degC, not provided by the manufacturer) was added for purposes of illustration. Obtaining the actual value would require deeper analysis or measurement of this important component characteristic. However, in this example, both thermal capacitance values were selected solely to give sufficiently fast thermal time constants, so that steady-state operating temperatures could be reached with minimal simulation time.</p> <p>This design is based on another shared design:</p> <p>"https://www.systemvision.com/design/ac-dc-power-adapter-current-boost-regulator", That design has been modified not only to add the electrothermal aspects, but it was also adjusted to improve its observed thermal performance. For example, the DC-link capacitance (c3) was increased from 4700uF to 22000uF, to allow a reduced DC-link operating voltage (i.e. to improve efficiency) while avoiding regulation drop-out at AC zero-crossings under heavy load conditions.</p> About text formats Tags 5V Regulator, 5AMC7805Belectro-thermal Select a tag from the list or create your own.Drag to re-order taxonomy terms. License - None - What's this? Design Titleby User-1689304908 × Embed Design Copy Embed Code <iframe allowfullscreen="true" referrerpolicy="origin-when-cross-origin" frameborder="0" width="100%" height="720" scrolling="no" src="https://explore.partquest.com/embed-design/601278"></iframe> Embed Live Design Copy Embed Code <iframe allowfullscreen="true" referrerpolicy="origin-when-cross-origin" frameborder="0" width="100%" height="720" scrolling="no" src="https://explore.partquest.com/node/601278"></iframe> Share a Link Copy URL https://explore.partquest.com/node/601278 Pagination Page 1 Next page ››
Copy of Electro-thermal Trade-off Analysis for AC-DC Converter with Current Boost Regulator - on Sat, 07/15/2023 - 16:15 User-1689304908Designer247512 × User-1689304908 Member for 8 months 2 weeks 5 designs 1 groups Title Description <p>This example shows the capability of modeling the electrothermal aspects of power dissipating circuits. The design is a 5V regulator (non-switching), driven from a 120 Vac/60 Hz input and using a transformer/rectifier circuit to step down to a much lower DC-link voltage.</p> <p>The load current capability is 5A, which is well above the current limit of the linear regular component itself. This is thanks to the load sharing role of the bypass PNP transistor. The design is based on an example application circuit shown in Figure 11 of the On Semiconductor Datasheet MC7800/D, November 2014 - Rev. 27.</p> <p>All of the power dissipating electronics' models are from the "Thermal and Electro-thermal" Components Library. They have a thermal port that connects to the thermal network (i.e. red wires). These models output all the power dissipated in the device as a thermal heat-flow into that network. This includes the rectifier diodes, the linear regulator and the BJT, as well as the current sense resistor and the effective winding resistances of the transformer primary and secondary.</p> <p>The thermal network includes the heat-sink's heat capacitance (0.1 J/degC) and heat transfer resistance to the ambient (1 degC/Watt), as well as the datasheet published values for the junction-to-lead thermal resistances of all the active electronic components. An assumed value for the thermal capacitance of the BJT (0.005 J/degC, not provided by the manufacturer) was added for purposes of illustration. Obtaining the actual value would require deeper analysis or measurement of this important component characteristic. However, in this example, both thermal capacitance values were selected solely to give sufficiently fast thermal time constants, so that steady-state operating temperatures could be reached with minimal simulation time.</p> <p>This design is based on another shared design:</p> <p>"https://www.systemvision.com/design/ac-dc-power-adapter-current-boost-regulator", That design has been modified not only to add the electrothermal aspects, but it was also adjusted to improve its observed thermal performance. For example, the DC-link capacitance (c3) was increased from 4700uF to 22000uF, to allow a reduced DC-link operating voltage (i.e. to improve efficiency) while avoiding regulation drop-out at AC zero-crossings under heavy load conditions.</p> About text formats Tags 5V Regulator, 5AMC7805Belectro-thermal Select a tag from the list or create your own.Drag to re-order taxonomy terms. License - None - What's this? Design Titleby User-1689304908 × Embed Design Copy Embed Code <iframe allowfullscreen="true" referrerpolicy="origin-when-cross-origin" frameborder="0" width="100%" height="720" scrolling="no" src="https://explore.partquest.com/embed-design/601278"></iframe> Embed Live Design Copy Embed Code <iframe allowfullscreen="true" referrerpolicy="origin-when-cross-origin" frameborder="0" width="100%" height="720" scrolling="no" src="https://explore.partquest.com/node/601278"></iframe> Share a Link Copy URL https://explore.partquest.com/node/601278 Pagination Page 1 Next page ››