Full bridge converter with ZVS via AC feedback

Details Full bridge converter with ZVS via AC feedback Full bridge converter with ZVS via AC feedback

2006-01-31

2006-01-31

Riley, Shawn (Department: 2838)

Electric power conversion systems

Current conversion

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

C363S132000, C363S098000

Reexamination Certificate

active

06992902

ABSTRACT:
A soft-switched, full-bridge pulse-width-modulated converter and its variations provide zero-voltage-switching conditions for the turn-on of the bridge switches over a wide range of input voltage and output load. The FB PWM converters of this invention achieve ZVS with a substantially reduced duty cycle loss and circulating current. The ZVS of the primary switches is achieved by employing an auxiliary circuit having an inductor and transformer to store energy for ZVS turn-on of the bridge switches.

REFERENCES:
patent: 5563775 (1996-10-01), Kammiller
patent: 6356462 (2002-03-01), Jang et al.

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