Power Factor Correction of the Single Stage AC/DC Converter with Low Conduction Loss and High Efficiency

고효율, 저손실을 갖는 1단 교류/직류 변환기의 역률제어

A new single stage AC/DC converter based on the forward converter is proposed. The proposed converter offers both the high power factor and the direct conversion from ac line to dc output voltage. Also, the proposed converter reduces the diode conduction loss, so improves the overall efficiency of the converter, compared with other alternatives. The principles of operation and the simulation results of the proposed converter are presented. A 100 W prototype was built and tested to show the potential of applications of the proposed converter.