电工技术学报2017，Vol.32Issue(8)：201-207,7.
一种高效率无桥双谐振功率因数校正变换器
A High Efficiency Bridgeless Dual Resonant Power Factor Correction Converter
摘要
Abstract
A secondary resonant circuit is introduced into the bridgeless Flyback power factor correction (PFC) converter,and a bridgeless dual resonant PFC converter is proposed in this paper.The turn-off current of switch decreases due to the resonance between the secondary leakage inductance of the transformer and the resonant capacitor.Therefore,the turn-off losses of switch are greatly reduced.Meanwhile,the secondary diodes turn off at zero current,which effectively suppressed the voltage spike and oscillation.The operation principle and characteristics of the proposed converter working in critical conduction mode (CRM) are analyzed.The design principles of the key parameters in the converter are also presented.Finally,experimental results verify the theoretical analysis of the proposed converter.关键词
功率因数校正/谐振/零电流关断/临界连续模式Key words
Power factor correction/resonance/zero current switching/critical conduction mode分类
信息技术与安全科学引用本文复制引用
殷刚,许建平,陈章勇..一种高效率无桥双谐振功率因数校正变换器[J].电工技术学报,2017,32(8):201-207,7.基金项目
国家自然科学基金资助项目(51177140、61371033). （51177140、61371033）
