Power supply system for reducing reverse current

Details Power supply system for reducing reverse current Power supply system for reducing reverse current

2009-10-07

2010-10-19

Riley, Shawn (Department: 2838)

Electric power conversion systems

Current conversion

Including d.c.-a.c.-d.c. converter

C363S021160, C363S052000, C363S101000

Reexamination Certificate

active

07817448

ABSTRACT:
The present invention discloses a power supply system for reducing reverse current, the system comprising a primary side circuit, for receiving alternating current; a transformer circuit, for transforming voltage; a secondary side rectifier circuit, for rectifying voltage; a secondary side filter circuit, for filtering voltage and providing direct current to a device; a first voltage division circuit, for providing a first voltage division signal; a switch circuit, for deciding the conducting condition based on the first voltage division signal and a reference voltage signal; a second voltage division circuit, for providing a second voltage division signal; and a control circuit, for deciding the charging condition based on the second voltage division signal; wherein the second voltage division circuit comprising a rectifier component and a filter component, for rectifying and filtering the source of the second voltage division signal.

REFERENCES:
patent: 5661642 (1997-08-01), Shimashita

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