Mechanism and suppression countermeasure of voltage oscillation for full bridge converter

Author

Chen, Zhong ; Shi, Liangchen ; Ji, Feng

Author_Institution

Jiangsu Key Lab. of New Energy Generation & Power Conversion, Nanjing Univ. of Aeronaut. & Astronaut., Nanjing, China

Volume

3

fYear

2012

fDate

2-5 June 2012

Firstpage

1632

Lastpage

1638

Abstract

A phase-shift full-bridge zero voltage switching (ZVS) pulse-width-modulated (PWM) converter with commutation capacitor and LC auxiliary circuit is proposed. This converter contains the advantages of small rectifier voltage oscillation as well as no duty cycle loss, and realizes ZVS for all primary switches over a wide load range. In this paper, the mechanism of the rectifier voltage oscillation is discussed in detail. The operation principle of the circuit is described and design considerations of the converter are discussed. Finally, the experimental results from a 650W/28 V, 100 kHz prototype are given to confirm the operation, validity, and features of the proposed converter.

Keywords

PWM power convertors; power semiconductor switches; rectifying circuits; zero voltage switching; LC auxiliary circuit; commutation capacitor; frequency 100 kHz; phase-shift full-bridge ZVS PWM converter; phase-shift full-bridge zero voltage switching pulse-width-modulated converter; power 650 W; rectifier voltage oscillation mechanism; voltage 28 V; voltage oscillation mechanism; voltage oscillation suppression countermeasure; Capacitors; Inductance; Inductors; Oscillators; Rectifiers; Switches; Zero voltage switching; full-bridge converter; voltage oscillation; zero voltage switching (ZVS);

fLanguage

English

Publisher

ieee

Conference_Titel

Power Electronics and Motion Control Conference (IPEMC), 2012 7th International

Conference_Location

Harbin

Print_ISBN

978-1-4577-2085-7

Type

conf

DOI

10.1109/IPEMC.2012.6259079

Filename

6259079