A single-stage power factor corrected converter with continuous conduction mode operation and regenerative clamping

A single-stage power factor corrected converter with continuous conduction mode operation and regenerative clamping

A single-stage two-switch forward converter with power factor correction (PFC) and regenerative clamping is proposed. Input current shaping, isolation, fast output regulation and switch turn-off voltage clamping are achieved in a single stage. The input boost inductor can be operated in continuous-c...

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Hauptverfasser: Qiao, C., Smedley, K.M., Maddaleno, F., Brooks, T., Shimpo, T.
Format: Tagungsbericht
Sprache:eng
Schlagworte:
Capacitors
Clamps
Inductors
Power factor correction
Reactive power
Snubbers
Switches
Switching loss
Voltage
Windings
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creator Qiao, C.
Smedley, K.M.
Maddaleno, F.
Brooks, T.
Shimpo, T.
description A single-stage two-switch forward converter with power factor correction (PFC) and regenerative clamping is proposed. Input current shaping, isolation, fast output regulation and switch turn-off voltage clamping are achieved in a single stage. The input boost inductor can be operated in continuous-conduction-mode, which results in lower conduction losses. The switching loss is reduced thanks to a snubber capacitor. For universal input applications, the voltage across the DC-bus capacitor is kept below 450 V by properly selecting the turns ratio between the additional and primary transformer winding. Therefore, a low cost capacitor can be used. The total harmonies of the converter can meet the EN610003-2 regulation. Experimental results verified the theoretical analysis.
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subjects Capacitors
Clamps
Inductors
Power factor correction
Reactive power
Snubbers
Switches
Switching loss
Voltage
Windings
title A single-stage power factor corrected converter with continuous conduction mode operation and regenerative clamping
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