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Bridge Rectifier 120V AC to 20V DC with FSM load Designer 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 Designer 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 Designer 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 Designer 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 Designer 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 -
Transformer Magnetizing In-rush Current Designer https://explore.partquest.com/node/16416 <iframe allowfullscreen="true" referrerpolicy="origin-when-cross-origin" frameborder="0" width="100%" height="720" scrolling="no" src="https://explore.partquest.com/node/16416"></iframe> Title Description <p>This transformer design example demonstrates a current in-rush or "peaking" effect that depends on the phase or timing of the AC supply switch closure. A rather counter-intuitive result is shown;</p><p>Case 1: Set the initial_delay of the digital pulse to 4.17m seconds, which causes the switch to closed when the sinusoidal AC line input voltage is at its peak, one quarter-cycle at its 60 Hz frequency. The current into the primary winding will immediately follow its nominal steady-state no-load profile, with a peak of just under 100mA. </p><p>Case 2: Set the digital pulse initial_delay to 0 seconds, so that the line voltage is applied to the transformer immediately at its rising zero-crossing. This results in a large non-sinusoidal peaking current which exceeds 500mA on its initial cycle!</p><p>This is a direct result of saturation in the magnetic core. To produce the necessary "volt-seconds" in Case 2, the magnetic flux in the core must be twice that of Case 1. But if the transformer is sized such that its peak flux density is somewhat close to the the saturation level for nominal steady-state operation, then a start-up transient with the unfortunate timing of Case 2 will result in a large in-rush current.</p><p>Note that the flux density "b" is displayed for the magnetic core. The core saturation flux density is specified as 1.5 Tesla, a typical value for Electrical Steel. You can also select "B vs. H from Table" to see the performance for a specific type of NGO Electrical Steel -35PN250 from the manufacturer Posco.</p> About text formats Tags in-rushtransformermagnetic saturationmagnetic corePosco 35PN250Electrical Steel Select a tag from the list or create your own.Drag to re-order taxonomy terms. License - None -
AC-DC Power Adapter fixed Designer https://explore.partquest.com/node/399 <iframe allowfullscreen="true" referrerpolicy="origin-when-cross-origin" frameborder="0" width="100%" height="720" scrolling="no" src="https://explore.partquest.com/node/399"></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 noisy Designer https://explore.partquest.com/node/398 <iframe allowfullscreen="true" referrerpolicy="origin-when-cross-origin" frameborder="0" width="100%" height="720" scrolling="no" src="https://explore.partquest.com/node/398"></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 -
