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

Author

Choi, Hang-Seok ; Kim, Jung-Won ; Cho, Bo Hyung

Author_Institution

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

Volume

17

Issue

5

fYear

2002

fDate

9/1/2002 12:00:00 AM

Firstpage

641

Lastpage

648

Abstract

A novel zero-voltage and zero-current-switching (ZVZCS) full-bridge pulse-width-modulated (PWM) converter is proposed to improve the previously proposed ZVZCS full-bridge PWM converters. By employing a simple auxiliary circuit with neither lossy components nor active switches, soft-switching of the primary switches is achieved. 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, which make the proposed converter attractive for the high voltage and high power applications. The principles of operation and design considerations are presented and verified on the 4 kW experimental converter operating at 80 kHz.

Keywords

PWM power convertors; bridge circuits; switching circuits; 4 kW; 80 kHz; PWM converter; active switches; auxiliary circuit; circulating current self adjustment; coupled output inductor; full-bridge pulse-width-modulated converter; high efficiency; lossy components; low voltage stress; primary switches; rectifier diode; soft-switching; zero-current-switching; zero-voltage-switching; Coupling circuits; Inductors; Low voltage; Pulse width modulation; Pulse width modulation converters; Rectifiers; Stress; Switches; Switching circuits; Zero current switching;

fLanguage

English

Journal_Title

Power Electronics, IEEE Transactions on

Publisher

ieee

ISSN

0885-8993

Type

jour

DOI

10.1109/TPEL.2002.802179

Filename

1035138