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

Volume

29

Issue

3

fYear

2014

fDate

Mar-14

Firstpage

1321

Lastpage

1330

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);

fLanguage

English

Journal_Title

Power Electronics, IEEE Transactions on

Publisher

ieee

ISSN

0885-8993

Type

jour

DOI

10.1109/TPEL.2013.2259847

Filename

6507598