Analysis and Reduction of Common Mode EMI Noise for Resonant Converters

被引：0
|
作者：
Yang, Yuchen [1 ]
Huang, Daocheng [1 ]
Lee, Fred C. [1 ]
Li, Qiang [1 ]
机构：
[1] Virginia Tech, Ctr Power Elect Syst, Bradley Dept Elect & Comp Engn, Blacksburg, VA 24061 USA
来源：
2014 TWENTY-NINTH ANNUAL IEEE APPLIED POWER ELECTRONICS CONFERENCE AND EXPOSITION (APEC) | 2014年
关键词：
D O I：
暂无
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：
In this paper, the common mode (CM) EMI noise characteristic of three popular topologies of resonant converter (LLC, CLL and LCL) is analyzed. The comparison of their EMI performance is provided. A state-of-art LLC resonant converter with matrix transformer is used as an example to further illustrate the CM noise problem of resonant converters. The CM noise model of LLC resonant converter is provided. A novel method of shielding is provided for matrix transformer to reduce common mode noise. The CM noise of LLC converter has a significantly reduction with shielding. The loss of shielding is analyzed by finite element analysis (FEA) tool. Then the method to reduce the loss of shielding is discussed. There is very little efficiency sacrifice for LLC converter with shielding according to the experiment result.
引用
收藏
页码：566 / 571
页数：6
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