中国电机工程学报2017，Vol.37Issue(24)：7276-7283,8.DOI:10.13334/j.0258-8013.pcsee.161978
一种单级无桥隔离型PFC变换器
An Isolated PFC Converter With Single-stage and Bridgeless Properties
摘要
Abstract
For traditional AC/DC power factor correction (PFC) converters, the diode bridge rectifier is needed in the front-end, resulting in large conduction losses to deteriorate efficiency especially under low line condition. To solve this problem, an isolated PFC converter with single-stage and bridgeless properties was proposed. It can get a DC output voltage no matter the line is positive or negativepolarity, and the bridge rectifier can be thus omitted for PFC applications. The proposed converter adopted a bidirectional switch and center-tapped transformer with two output windings to achieve bipolarity input and electrical isolation. The operation modes and characteristics of the proposed converter operating in discontinuous conduction mode (DCM) were analyzed in detail. Finally, the corresponding simulation and experimental results were provided to verify the theoretical analysis.关键词
功率因数校正/效率/单级/无桥/断续导电模式Key words
power factor correction (PFC)/efficiency/single-stage/bridgeless/discontinuous conduction mode (DCM)分类
信息技术与安全科学引用本文复制引用
王金平,胡凡宇,侯良奎,吴可汗,姜卫东..一种单级无桥隔离型PFC变换器[J].中国电机工程学报,2017,37(24):7276-7283,8.基金项目
国家自然科学基金资助项目(51407054) （51407054）
安徽省自然科学基金资助项目(1508085QE85). Supported by National Natural Science Foundation of China (51407054) （1508085QE85）
Natural Science Foundation of Anhui Province of China (1508085QE85). （1508085QE85）
