一种基于单级PFC双管正激变换器偏磁控制技术的研究  

Study on Magnetic-Bias Control Technology of Single Stage PFC Dual-Transistor Forward Converter

作　　者：周翔[1] 廖无限[1] 陈明[1] 

机构地区：[1]湖南工业大学电气信息工程学院,湖南株洲412007

出　　处：《湖南工业大学学报》2015年第6期49-52,90,共5页Journal of Hunan University of Technology

基　　金：湖南省教育厅基金资助项目(13C023)

摘　　要：偏磁控制技术是单级PFC双管正激变换器领域的关键问题之一,阐述偏磁产生的危害,分析偏磁现象在单级P F C双管正激变换器上产生的原因,提出一种合理和有效的偏磁控制电路方案,详述其工作过程和原理,制作一块单级P F C双管正激变换器测试板,其间在主电路与偏磁控制电路设置了接通和断开的结点,并进行了对照实验,验证了其可行性和实效性。Magnetic-bias control technology is one of the key issues in the field of single-stage PFC dual-transistor forward converter. Expounds the damage induced by magnetic bias and analyzes the bias phenomenon causes in singlestage PFC dual-transistor forward converter. Puts forward a reasonable and effective bias control circuit scheme, explains its working process and principle, and produces a test board of the converter, in which sets the on and off nodes on the main circuit and bias control circuit. Makes contrast experiments and verifies the feasibility and effectiveness of the proposed converter.

关 键 词：偏磁 双管正激 PFC 单级 变压器 

分 类 号：TM406[电气工程—电器]