A New Soft-switching Synchronous Buck Converter without Auxiliary Switch

被引：0
|
作者：
Wu, Haifu [1 ]
Zhang, Jianzhong [1 ]
Zhao, Jin [1 ]
Zhang, Yaqian [1 ]
Hu, Lucai [1 ]
机构：
[1] Southeast Univ, Jiangsu Prov Key Lab Smart Grid Technol & Equipme, Nanjing 210096, Peoples R China
来源：
2019 IEEE 10TH INTERNATIONAL SYMPOSIUM ON POWER ELECTRONICS FOR DISTRIBUTED GENERATION SYSTEMS (PEDG 2019) | 2019年
基金：
中国国家自然科学基金;
关键词：
synchronous buck converter; ZVS; main switching device; auxiliary switch;
D O I：
10.1109/pedg.2019.8807700
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：
Soft-switching operation of a synchronous buck converter without auxiliary switch is researched in this paper. The synchronous buck converter uses the auxiliary inductor L-r and the auxiliary capacitor C-r to realize the zero-voltage switching (ZVS) of the main switching device. It can reduce turn-on losses of the buck converter. In this paper, the operating principle of synchronous buck converter is introduced. The main waveforms in each mode are analyzed. Finally, the simulation of proposed synchronous buck converter is carried out and experimental platform is built. Both simulation and experimental results are provided to show that the synchronous buck converter proposed in this paper realizes ZVS operation of the switch and then the efficiency can be improved.
引用
收藏
页码：537 / 541
页数：5
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