Title :
A New ZCS-PWM Full-Bridge DC–DC Converter With Simple Auxiliary Circuits
Author :
Mousavi, Amin ; Moschopoulos, Gerry
Author_Institution :
Univ. of Western Ontario, London, ON, Canada
Abstract :
A new soft-switching pulsewidth modulated (PWM) full-bridge converter is proposed in this paper. The outstanding feature of the new converter is that it allows its main power switches to operate with zero current switching (ZCS) and with fewer conduction losses than conventional full-bridge converters. This is achieved by using two very simple active auxiliary circuits-one active, the other passive. The paper presents the new converter and then discusses its operation, steady-state characteristics, and design. Experimental results obtained from a 3 kW converter prototype are presented to validate the converter´s performance and the concepts presented in the paper.
Keywords :
DC-DC power convertors; PWM power convertors; losses; power semiconductor switches; zero current switching; PWM; ZCS; active auxiliary circuit; conduction loss; full bridge DC-DC converter; power 3 kW; power switch; pulse width modulation; soft switching; zero current switching; Capacitors; Inductance; Insulated gate bipolar transistors; MOSFET; RLC circuits; Switches; Zero current switching; Bidirectional converters; dc–dc converters; efficiency measurement; full bridge; pulsewidth modulated (PWM) converters; zero-current switching (ZCS) converters; zero-voltage and zero-current switching (ZVZCS);
Journal_Title :
Power Electronics, IEEE Transactions on
DOI :
10.1109/TPEL.2013.2259847
