Title :
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
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;
Conference_Titel :
Power Electronics and Motion Control Conference, 2000. Proceedings. IPEMC 2000. The Third International
Conference_Location :
Beijing
Print_ISBN :
7-80003-464-X
DOI :
10.1109/IPEMC.2000.884591
