A new soft recovery PWM quasi-resonant converter with a folding snubber network

Author

Chung, Jin-Kuk ; Cho, Gyu-Hyeong

Author_Institution

Dept. of Electron., Inf. & Commun., Daelim Collage, Anyang, South Korea

Volume

49

Issue

2

fYear

2002

fDate

4/1/2002 12:00:00 AM

Firstpage

456

Lastpage

461

Abstract

A new soft recovery (SR) quasi-resonant converter (QRC) having a multiple-order folding snubber network (MFSN) is introduced. It is obtained by combining a normal QRC with a folding snubber network of which the surrounding components are composed of passive devices only (diodes and capacitors). The reverse recovery loss of the main rectifier diode is eliminated by this method utilizing multiple resonance with a multiple-order folding snubber network. By realizing soft switching conditions, the proposed converter has pulsewidth modulation capability with high efficiency and is suitable for high-voltage and high-power DC to DC converter applications

Keywords

DC-DC power convertors; PWM power convertors; resonant power convertors; snubbers; switching circuits; capacitors; diodes; folding snubber network; high-power DC to DC converter; multiple resonance; multiple-order folding snubber network; passive devices; pulsewidth modulation capability; reverse recovery loss elimination; soft recovery PWM quasi-resonant converter; soft switching conditions; Diodes; Pulse modulation; Pulse width modulation; Pulse width modulation converters; Rectifiers; Resonance; Snubbers; Strontium; Switched capacitor networks; Switching converters;

fLanguage

English

Journal_Title

Industrial Electronics, IEEE Transactions on

Publisher

ieee

ISSN

0278-0046

Type

jour

DOI

10.1109/41.993279

Filename

993279