AC-DC Power Adapter fixed ShabaniSarkarDesigner56456 × ShabaniSarkar Member for 8 years 6 months 1 designs 1 groups Add a bio to your profile to share information about yourself with other SystemVision users. https://explore.partquest.com/node/81211 <iframe allowfullscreen="true" referrerpolicy="origin-when-cross-origin" frameborder="0" width="100%" height="720" scrolling="no" src="https://explore.partquest.com/node/81211"></iframe> Title Description <p>This is a circuit design for a typical wall-plug power adapter. </p> About text formats Tags PowerVoltage RegulatorAC-DC Convertertransformerpower supply Select a tag from the list or create your own.Drag to re-order taxonomy terms. License - None -
AC-DC Power Adapter BirdDogDesigner54931 × BirdDog Member for 8 years 6 months 2 designs 1 groups Add a bio to your profile to share information about yourself with other SystemVision users. https://explore.partquest.com/node/80226 <iframe allowfullscreen="true" referrerpolicy="origin-when-cross-origin" frameborder="0" width="100%" height="720" scrolling="no" src="https://explore.partquest.com/node/80226"></iframe> Title Description <p>This is a circuit design for a typical wall-plug power adapter. </p><p>The sinusoidal source represents a typical US 60 Hz, 120V AC wall supply. </p><p>A transformer steps the voltage down to a manageable range to be rectified for a 5V DC supply, but the waveform is still sinusoidal. </p><p>The 4 diode bridge rectifier takes this lower amplitude sinusoidal signal and produces a DC biased result, but still with noise resulting from the rectification process.</p><p>The capacitor before the voltage regulator chip helps smooth some of this noise. Then the regulator chip provides a self-contained, feedback controlled mechanism to keep the output voltage at the specified value. </p><p>The output capacitor further smooths any output ripple and provides a reservoir of charge to supply any surge in current load that may be encountered.</p><p>This example includes a load resistor that allows the exploration of the effects of load. The load is varied during the simulation and it can be seen that above a load of 100 mA, the regulation of the output voltage begins to deteriorate.</p> About text formats Tags PowerVoltage RegulatorAC-DC Convertertransformerpower supply Select a tag from the list or create your own.Drag to re-order taxonomy terms. License - None -
AC-DC Power Adapter noisy KarreemDesigner45611 × Karreem Member for 8 years 7 months 2 designs 1 groups Add a bio to your profile to share information about yourself with other SystemVision users. https://explore.partquest.com/node/66196 <iframe allowfullscreen="true" referrerpolicy="origin-when-cross-origin" frameborder="0" width="100%" height="720" scrolling="no" src="https://explore.partquest.com/node/66196"></iframe> Title Description <p>This is a circuit design for a typical wall-plug power adapter. </p><p>The output is too noisy.</p> About text formats Tags PowerVoltage RegulatorAC-DC Convertertransformerpower supply Select a tag from the list or create your own.Drag to re-order taxonomy terms. License - None -
AC-DC Power Adapter fixed mihaigavanescuDesigner13081 × mihaigavanescu Member for 9 years 3 designs 1 groups Add a bio to your profile to share information about yourself with other SystemVision users. https://explore.partquest.com/node/43366 <iframe allowfullscreen="true" referrerpolicy="origin-when-cross-origin" frameborder="0" width="100%" height="720" scrolling="no" src="https://explore.partquest.com/node/43366"></iframe> Title Description <p>This is a circuit design for a typical wall-plug power adapter. </p> About text formats Tags PowerVoltage RegulatorAC-DC Convertertransformerpower supply Select a tag from the list or create your own.Drag to re-order taxonomy terms. License - None -
Bridge Rectifier 120V AC to 20V DC with FSM load DarrellDesigner10 × Darrell Member for 11 years 1 month 624 designs 10 groups Big fan of VHDL-AMS https://explore.partquest.com/node/39041 <iframe allowfullscreen="true" referrerpolicy="origin-when-cross-origin" frameborder="0" width="100%" height="720" scrolling="no" src="https://explore.partquest.com/node/39041"></iframe> Title Description <p>A step-down transformer changes the average voltage to step it down from 120 V RMS to a convenient working voltage (still AC).</p><p>A diode bridge can be used to rectify the AC signal, but it still has a lot of ripple. </p><p>An output capacitor can be used to filter our the ripple. A larger capacitor reduces the ripple more.</p> About text formats Tags AC-DC Converterpower supplyrectifierDiode Bridgetransformer120 VAC Select a tag from the list or create your own.Drag to re-order taxonomy terms. License - None -
Bridge Rectifier 120V AC to 20V DC DarrellDesigner10 × Darrell Member for 11 years 1 month 624 designs 10 groups Big fan of VHDL-AMS https://explore.partquest.com/node/39016 <iframe allowfullscreen="true" referrerpolicy="origin-when-cross-origin" frameborder="0" width="100%" height="720" scrolling="no" src="https://explore.partquest.com/node/39016"></iframe> Title Description <p>A step-down transformer changes the average voltage to step it down from 120 V RMS to a convenient working voltage (still AC).</p><p>A diode bridge can be used to rectify the AC signal, but it still has a lot of ripple. </p><p>An output capacitor can be used to filter our the ripple. A larger capacitor reduces the ripple more.</p> About text formats Tags AC-DC Converterpower supplyrectifierDiode Bridgetransformer120 VAC Select a tag from the list or create your own.Drag to re-order taxonomy terms. License - None -
transformer model comparison -- perfect coupling DarrellDesigner10 × Darrell Member for 11 years 1 month 624 designs 10 groups Big fan of VHDL-AMS https://explore.partquest.com/node/38591 <iframe allowfullscreen="true" referrerpolicy="origin-when-cross-origin" frameborder="0" width="100%" height="720" scrolling="no" src="https://explore.partquest.com/node/38591"></iframe> Title Description <p>This circuit compares two different ways to specify a two winding transformer. </p><p>One way is by specifying the inductance of each winding, with a coupling coefficient between the windings.</p><p>The other way is by specifying the number of windings and the size and permeability of the core on which the windings are wound. </p><p>For a perfectly coupled transformer, the flux in the core is completely shared by both windings. In the first model, this corresponds to a coupling coefficient of 1.0. In the second model, this corresponds to a single flux path in the magnetic circuit.</p><p>L = u0*ur*N^2*A/L</p><p>u0 = 1.25663706 × 10-6 [m kg s-2 A-2]</p><p>L_primary</p><p>ur = 3000 [no units]</p><p>N = 10 [turns]</p><p>A = 100.0E-6 [meter^2]</p><p>L = 100.0E-3 [meter]</p><p>L_primary =1.25663706E-6 *3000*10^2*1000E-6/100.0e-3 = 3.76991E-04</p><p>L_secondary</p><p>ur = 3000 [no units]</p><p>N = 100 [turns]</p><p>A = 100.0E-6 [meter^2]</p><p>L = 100.0E-3 [meter]</p><p>L_secondary = 1.25663706E-6 *3000*100^2*1000E-6/100.0e-3 = 3.76991E-02</p><p>The third circuit shows how a magnetic circuit can be used to represent imperfect winding coupling. In this example, the length of the core is divided between the two horizontal core segments. A third (vertical) core segment is also shown. This magnetic path carries flux that is not common to both windings, thus reducing the coupling between the two windings. When the length of this segment is very long, its effect is negligible, approximating the simpler magnetic circuit above it.. </p> About text formats Tags transformermagnetics Select a tag from the list or create your own.Drag to re-order taxonomy terms. License - None -
Bridge Rectifier 230 V AC DarrellDesigner10 × Darrell Member for 11 years 1 month 624 designs 10 groups Big fan of VHDL-AMS https://explore.partquest.com/node/38456 <iframe allowfullscreen="true" referrerpolicy="origin-when-cross-origin" frameborder="0" width="100%" height="720" scrolling="no" src="https://explore.partquest.com/node/38456"></iframe> Title Description <p>A step-down transformer changes the average voltage to step it down from 230 V RMS to a convenient working voltage (still AC).</p><p>A diode bridge can be used to rectify the AC signal, but it still has a lot of ripple. </p><p>An output capacitor can be used to filter our the ripple. A larger capacitor reduces the ripple more.</p> About text formats Tags AC-DC Converterpower supplyrectifierDiode Bridge230 VACtransformer Select a tag from the list or create your own.Drag to re-order taxonomy terms. License - None -
Transformer experiment DarrellDesigner10 × Darrell Member for 11 years 1 month 624 designs 10 groups Big fan of VHDL-AMS https://explore.partquest.com/node/38156 <iframe allowfullscreen="true" referrerpolicy="origin-when-cross-origin" frameborder="0" width="100%" height="720" scrolling="no" src="https://explore.partquest.com/node/38156"></iframe> Title Description About text formats Tags transformer Select a tag from the list or create your own.Drag to re-order taxonomy terms. License - None -
AC-DC Power Adapter JamalSmartDesigner9266 × JamalSmart Member for 9 years 1 month 3 designs 1 groups Add a bio to your profile to share information about yourself with other SystemVision users. https://explore.partquest.com/node/33896 <iframe allowfullscreen="true" referrerpolicy="origin-when-cross-origin" frameborder="0" width="100%" height="720" scrolling="no" src="https://explore.partquest.com/node/33896"></iframe> Title Description <p>This is a circuit design for a typical wall-plug power adapter. </p><p>The sinusoidal source represents a typical US 60 Hz, 120V AC wall supply. </p><p>A transformer steps the voltage down to a manageable range to be rectified for a 5V DC supply, but the waveform is still sinusoidal. </p><p>The 4 diode bridge rectifier takes this lower amplitude sinusoidal signal and produces a DC biased result, but still with noise resulting from the rectification process.</p><p>The capacitor before the voltage regulator chip helps smooth some of this noise. Then the regulator chip provides a self-contained, feedback controlled mechanism to keep the output voltage at the specified value. </p><p>The output capacitor further smooths any output ripple and provides a reservoir of charge to supply any surge in current load that may be encountered.</p><p>This example includes a load resistor that allows the exploration of the effects of load. The load is varied during the simulation and it can be seen that above a load of 100 mA, the regulation of the output voltage begins to deteriorate.</p><p>The addition of a few components can make it possible for such a circuit to provide significantly higher power loads. See http://www.systemvision.com/design/ac-dc-power-adapter-current-boost-regulator for an example.</p> About text formats Tags PowerVoltage RegulatorAC-DC Convertertransformerpower supply Select a tag from the list or create your own.Drag to re-order taxonomy terms. License - None -