通信高频开关电源电磁干扰抑制分析  

Analysis of Restraining EMI in Communication High Frequence Switching Power Supply

作　　者：郑征[1] 张磊[1] 高庆华[1] 

机构地区：[1]河南理工大学,河南焦作454003

出　　处：《湖南工业大学学报》2009年第5期66-68,共3页Journal of Hunan University of Technology

基　　金：河南省教育厅自然科学基金资助项目(2008A470004)

摘　　要：近年来,随着我国通信事业的迅速发展,通信网的总体规模已经跃居世界前列,通信设备对电源系统的要求也越来越高。大功率通信高频开关电源的噪声干扰中除了有谐波的传导干扰外,还存在电磁的辐射干扰问题。针对通信高频开关电源工作中的不稳定性,分析了通信高频开关电源产生电磁干扰(EMI)的机理,提出了抑制干扰的有效措施。With the rapid development of China＇s telecommunication industry, the overall size of communication network in China has leaped to the forefront of the world. The demand of communication equipments for the power system is also getting higher and higher. In the noise interference of high frequence switching power supply there is not only harmonic conducted interference but also electromagnetic interference（EMI）. Aiming at the instability of communication high frequence switching power supply, analyzes the mechanism of producing EMI in high frequence switching power supply and puts forward effective measurements to restrain EMI.

关 键 词：电磁干扰 通信高频开关电源 抑制 

分 类 号：TM910[电气工程—电力电子与电力传动]