Synchronous rectifying control circuit

Details Synchronous rectifying control circuit Synchronous rectifying control circuit

2007-04-17

2007-04-17

Laxton, Gary L (Department: 2838)

Electric power conversion systems

Current conversion

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

C363S081000, C363S127000

Reexamination Certificate

active

11331274

ABSTRACT:
A synchronous rectifying control circuit for utilizing in a forward topology of rectifying circuit. The circuit controls a first current switch and a second current switch provided on both ends of a secondary of a transformer. Two sets of the same of control circuits are utilized to control and adjust respectively the post and future periods of the conductive time and the driving synchronous rectifying switches are extended to replace the conventional of rectifier diodes rectifying method. An improved synchronous rectifying control circuit comprises pulse interruptive protection circuit to prevent the cross-conduction between two current switches and an anti reversing protection circuit to prevent a reverse current from flowing back to the ground.

REFERENCES:
patent: 6870747 (2005-03-01), Bridge
patent: 6995991 (2006-02-01), Yang et al.
patent: 7050310 (2006-05-01), Yang

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