Study on the Single-Stage Forward-Flyback PFC Converter With QR Control

被引：51
|
作者：
Xie, Xiaogao [1 ]
Li, Jiangsong [1 ]
Peng, Kunsheng [1 ]
Zhao, Chen [1 ]
Lu, Qiang [1 ]
机构：
[1] Hangzhou Dianzi Univ, Coll Automat, Hangzhou 310018, Zhejiang, Peoples R China
来源：
IEEE TRANSACTIONS ON POWER ELECTRONICS | 2016年 / 31卷 / 01期
关键词：
AC-DC; forward-flyback power factor correction (PFC); high power factor; LED driver; quasi-resonant (QR) control modes;
D O I：
10.1109/TPEL.2015.2404859
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
The single-stage forward-flyback power factor correction converter with quasi-resonant (QR) control is studied in this paper. This converter merges flyback converter and forward converter through a common transformer. Only the flyback subconverter works when the input voltage is lower than the reflected output voltage while both the flyback subconverter and the forward subconverter operate to share the output power in the rest region. The dead zones which exist in the ac input current of traditional forward converter are eliminated and high power factor can be achieved. Two different QR control schemes have been studied. Detailed analysis, optimal design considerations, and comparison for these two QR control modes are provided. Finally, two 120 W experimental prototypes for LED driver were built up to verify the theoretical analysis.
引用
收藏
页码：430 / 442
页数：13
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