The influence of magnetic component on common-mode current in a boost converter

被引：0
|
作者：
Kchikach, M [1 ]
Pong, MH [1 ]
Qian, ZM [1 ]
机构：
[1] Univ Hong Kong, Power Elect Lab, Dept Elect Engn, Hong Kong, Hong Kong, Peoples R China
来源：
IPEMC 2000: THIRD INTERNATIONAL POWER ELECTRONICS AND MOTION CONTROL CONFERENCE, VOLS 1-3, PROCEEDINGS | 2000年
关键词：
D O I：
暂无
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：
Common mode current causes EMI in switching power supply. An inductor in a switching power supply is often connected to a node with high dv/dt and its influence on overall common mode current is investigated. In the present work it is discovered that an inductor does not produce much common mode noise compared to a MOSFET terminal. This is because the inductor core attracts electric field from the windings and its capacitance to earth is reduced compared to one without a core. Simulation and experimental results, based on the emission map of the Printed circuit board (PCB), are presented to clarify the ideas.
引用
收藏
页码：925 / 929
页数：5
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