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FIying Capacitor Snubber를 적용한 PFC(Power Factor Correction) Boost 컨버터에 관한 연구
김병철(B.C.Kim),이회승(H.S.Lee),서재호(J.H.Seo) 전력전자학회 2003 전력전자학술대회 논문집 Vol.2003 No.7(1)
Switching Mode Power Supply(SMPS) is widely used in many industrial fields. Power factor improvement and harmonic reduction technique are very important in SMPS in this paper, we propose the circuit applied Flying Capacitor Snubber for improving power factor of boost converter on fast switching state. Snubber circuit consists of a inductor, two diodes and a capacitor. The losses of switching are reduced by inserting a snubber inductor in the series path of the boost switch and the rectifier diode to control the di/dt rate of the rectifier during it's turn-off Prior to actual experiment, the circuit analysis is Implemented by PSPICE simulation.<br/>