Electric power conversion systems – Current conversion – Including d.c.-a.c.-d.c. converter
Reexamination Certificate
2006-07-12
2009-06-16
Patel, Rajnikant B (Department: 2838)
Electric power conversion systems
Current conversion
Including d.c.-a.c.-d.c. converter
C363S017000, C363S098000, C323S266000
Reexamination Certificate
active
07548435
ABSTRACT:
A DC-DC converter includes an inductor, a synchronous rectifier (SR) connected to the inductor, and an active switch connected to the inductor and the SR. An active resonant tank (ART) cell is connected to the SR or a transformer in parallel such that a resonant capacitor of the ART cell is charged through the active switch and discharged through the synchronous rectifier so that during a switch transition period energy is pumped out of the resonant capacitor by activating the ART cell to eliminate reverse recovery switching loss and achieve Zero Voltage Switching (ZVS).
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patent: 6862195 (2005-03-01), Jitaru
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Astec International Limited
Harness & Dickey & Pierce P.L.C.
Patel Rajnikant B
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