Novel zero-voltage and zero-current-switching (ZVZCS) full-bridge PWM converter using coupled output inductor

Author

Choi, Hang-Seok ; Kim, J.W. ; Cho, B.H.

Author_Institution

Dept. of Electr. Eng., Seoul Nat. Univ., South Korea

Volume

2

fYear

2001

fDate

2001

Firstpage

967

Abstract

A novel zero voltage and zero current switching (ZVZCS) full bridge (FB) PWM converter is proposed. The new converter improves the drawbacks of the previously proposed ZVZCS FB PWM converters. A simple auxiliary circuit with neither lossy components nor active switches achieves ZVZCS of the primary switches. Since the proposed converter has many advantages such as simple auxiliary circuit, high efficiency, low voltage stress of the rectifier diode and self-adjustment of the circulating current, it is very attractive for the high power applications. The principles of operation and design considerations are presented. The experimental verifications from 4 kW prototype converter operating at 80 kHz are presented

Keywords

PWM power convertors; bridge circuits; power inductors; power semiconductor switches; switching circuits; 4 kW; 80 kHz; DC/DC power conversion; ZVZCS; auxiliary circuit; circulating current self-adjustment; coupled output inductor; design considerations; high power applications; operating principles; primary switches; rectifier diode stress reduction; zero-voltage zero-current-switching full-bridge PWM converter; Bridge circuits; Diodes; Low voltage; Pulse width modulation converters; Rectifiers; Stress; Switches; Switching circuits; Zero current switching; Zero voltage switching;

fLanguage

English

Publisher

ieee

Conference_Titel

Applied Power Electronics Conference and Exposition, 2001. APEC 2001. Sixteenth Annual IEEE

Conference_Location

Anaheim, CA

Print_ISBN

0-7803-6618-2

Type

conf

DOI

10.1109/APEC.2001.912484

Filename

912484