作者：茹东生, 姜茂仁, 李洪烈

作者单位：海军航空工程学院青岛分院, 山东青岛 266041

关键词：EMI抑制; 缓冲电路; 仿真

摘要：

本文根据开关电源在开关快速开关的过程中存在dv/dt效应和传导性辐射的情况,提出一种开关电源抑制传导性电磁干扰的缓冲电路设计方法。仿真研究证明了这种缓冲电路在抑制传导性电磁干扰的有效性。

Design and simulation of the conducted EMI suppression on switched power

RU Dong-sheng, JIANG Mao-ren, LI Hong-lie

Qingdao Branch, Navy Aeronautical Engineering College, Qingdao 266041, China

Abstract: The paper presents a design of conducted EMI suppression on switched power using snubber circuit for high frequency buck converter.The snubber effects on dv/dt and conducted EMI emission during turn on and turn off period.The simulated results of conducted EMI verify the effectiveness of the snubber circuit.

Keywords: EMI suppression; Snubber circuit; Simulation

2005, 31(4): 44-46  收稿日期: 2004-12-8;收到修改稿日期: 2005-2-25

基金项目: 

作者简介: 茹东生(1967-),男,硕士,讲师,主要从事通信系统与仿真。

参考文献

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[2] C.U-Yaisom,W.kan-ngern and S.Nitta;The Self-Resonant Frequency Effect of the Conducted EMI Suppression on Power MOSFET Using Snubber Circuit;IC EMC 2002/Bangkok.
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