A Novel AC/DC Single-Phase Bridgeless SEPIC PFC Converter With Reduced Conduction Losses and Simple Structure

被引：0
|
作者：
Lin, Xiang [1 ]
Ding, Shumin [2 ]
Wu, Deliang [1 ]
Luo, Jian [1 ]
机构：
[1] Shanghai Univ, Dept Elect Engn, Shanghai, Peoples R China
[2] State Grid Shanghai Municipal Elect Power Co, Shanghai, Peoples R China
来源：
2021 IEEE WORKSHOP ON WIDE BANDGAP POWER DEVICES AND APPLICATIONS IN ASIA (WIPDA ASIA 2021) | 2021年
关键词：
Bridgeless SEPIC rectifier; discontinuous current mode (DCM); power factor (PF); simple structure;
D O I：
10.1109/WIPDAASIA51810.2021.9656085
中图分类号：
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号：
0807 ; 0820 ;
摘要：
Bridgeless rectifier as front-end power factor correction (PFC) converter has been obtained abundant popularity due to its praiseworthy merits of optimized power losses produced by power semiconductors. In this technical paper, novel bridgeless SEPIC rectifier with improved losses and concise circuit structure is proposed by using bidirectional power switch. Compared to conventional SEPIC rectifier, proposed SEPIC rectifier features an optimized efficiency via lessening the count of semiconductors in power-flowing path. Compared to state-of-art bridgeless SEPIC rectifiers, proposed bridgeless SEPIC rectifier possesses concise topology structure and less component. The discontinuous current mode (DCM) is presented, which has the merits of naturally PFC and the zero-current switching are analyzed. Finally, a 100W simulated model are constructed aiming to certify superiority of this new rectifier.
引用
收藏
页码：127 / 131
页数：5
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