Effects of parasitic parameters on EMI filter performance

被引：218
|
作者：
Wang, S [1 ]
Lee, FC [1 ]
Chen, DY [1 ]
Odendaal, WG [1 ]
机构：
[1] Virginia Polytech Inst & State Univ, Bradley Dept Elect & Comp Engn, Blacksburg, VA 24061 USA
来源：
IEEE TRANSACTIONS ON POWER ELECTRONICS | 2004年 / 19卷 / 03期
关键词：
capacitive coupling; EMI filter; inductive coupling; parasitic coupling; transfer gain;
D O I：
10.1109/TPEL.2004.826527
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：
Two filters with identical topologies and components can exhibit a significant difference in filter effectiveness when the layouts are different. The goal of this paper is to examine the effects of parasitic couplings among the filter components and the coupling between the filter components and the ground plane of printed circuit board (PCB). Specifically, six different coupling effects are investigated: the couplings between the inductor and capacitors, a filter inductor and trace loops, two filter inductors, two capacitor parasitic inductances, a filter inductor and ground plane, and two trace loops. Experiments were performed, theories were developed to investigate and characterize these parasitic couplings.
引用
收藏
页码：869 / 877
页数：9
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