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Soft recovery PWM Quasi-Resonance Converter With a Folding Snubber Network  

Jeong, Jin-Guk (Dept. of Electronic, Information & Communication, Daelim University Collage)
Publication Information
Journal of the Institute of Electronics Engineers of Korea SC / v.47, no.2, 2010 , pp. 50-54 More about this Journal
Abstract
Soft recovery (SR) quasi-resonant converter (QRC) including a Folding snubber network (FSN) is introduced. It is obtained by combining normal quasi-resonant converter with 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 quasi resonance with Folding snubber network. By realizing soft switching condition, the proposed converter has PWM capability with high efficiency and is suitable for high output current and high power DC to DC converter application.
Keywords
Soft recovery; Reverse recovery current; Folding snubber network; Zero current switching;
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  • Reference
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