Synchronous rectifier having dynamically adjustable current rati

Details Synchronous rectifier having dynamically adjustable current rati Synchronous rectifier having dynamically adjustable current rati

1999-02-08

1999-12-14

Riley, Shawn

Electric power conversion systems

Current conversion

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

363 89, 363127, H02M 3335

Patent

active

060025972

ABSTRACT:
A synchronous rectifier, a method of operating the same and a power converter incorporating the synchronous rectifier or the method. In one embodiment, the synchronous rectifier includes: (1) a plurality of parallel-coupled active rectifier circuits, each of the plurality of active rectifier circuits having first and second rectifier switches coupled to corresponding first and second voltage limiting switches and (2) a controller, coupled to the plurality of active rectifier circuits, that senses a through-current of the rectifier and employs the voltage limiting switches to disable corresponding ones of the plurality of active rectifier circuits as the through-current decreases to enhance an operating efficiency of the synchronous rectifier.

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patent: 5870299 (1999-02-01), Rozman

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