A novel switching regulator with active commutation PWM rectifier

Author

Morimoto, Takeshi ; Saitoh, Kouhei ; Nakamura, Mantaro ; Iwamoto, Hideo ; Nakaoka, Mutsuo

Author_Institution

Dept. of Electr. & Electron. Eng., Yamaguchi Univ., Japan

Volume

2

fYear

2000

fDate

2000

Firstpage

741

Abstract

This paper presents a new prototype of phase-shifted transformer parasitic components-assisted ZVS-PWM DC-DC converter with choke input type DC smoothing filter which incorporates ZCS active power switches in series with each rectifier diode in high-frequency transformer secondary-side. This efficient DC-DC converter with a wide ZVS operation ranges which is suitable for high-power applications can achieve soft-switching operation under a condition of no circulating current. Its operating principle and unique features are described. The steady-state operating characteristics of the proposed DC-DC converter topology are illustrated and discussed on the basis of the simulation and some experimental results of 2 kW-40 kHz breadboard set up

Keywords

AC-DC power convertors; DC-DC power convertors; PWM power convertors; power transformers; rectifying circuits; switching circuits; transformer windings; voltage regulators; 2 kW; 40 kHz; DC-DC power converter topology; ZCS active power switches; active commutation PWM rectifier; choke input type DC smoothing filter; operating principle; phase-shifted transformer parasitic components-assisted ZVS-PWM DC-DC converter; rectifier diode; soft-switching operation; steady-state operating characteristics; switching regulator; Active filters; DC-DC power converters; Inductors; Prototypes; Pulse width modulation; Rectifiers; Regulators; Smoothing methods; Switching converters; Zero current switching;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Electronics and Motion Control Conference, 2000. Proceedings. IPEMC 2000. The Third International

Conference_Location

Beijing

Print_ISBN

7-80003-464-X

Type

conf

DOI

10.1109/IPEMC.2000.884591

Filename

884591