전력전자학회:학술대회논문집 (Proceedings of the KIPE Conference)
- 전력전자학회 2000년도 전력전자학술대회 논문집
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- Pages.266-269
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- 2000
동기 정류기를 이용한 고효율 역률보상형 AC/DC 컨버터
High Efficiency PFC AC/DC Converter with Synchronous Rectifier
초록
This paper presents a novel single-stage unity power factor converter which features the reduced switching losses by zero-voltage switching and zero-current switching (ZVZCS). Hence the turn-on and turn-off losses of switches are sufficiently reduced. And the reduced conduction losses are achieved by the elimination of one leg of front-end rectifier. And low on-resistance MOSFETs (Synchronous Rectifier) are used in the rectifier at the secondary side of high frequency transformer instead of diodes. Theoretical analysis simulated results of a AC to DC 150W(5V, 30A) converter are presented.
키워드