[1]陈宝祥,祝志博,黄俊硕,等.开关电源传导EMI分析及抑制方法研究[J].南京师范大学学报(工程技术版),2019,19(04):070-74.[doi:10.3969/j.issn.1672-1292.2019.04.012]
　Chen Baoxiang,Zhu Zhibo,Huang Junshuo,et al.Research on Power Conducted EMI Analysis and Suppression Methods[J].Journal of Nanjing Normal University(Engineering and Technology),2019,19(04):070-74.[doi:10.3969/j.issn.1672-1292.2019.04.012]
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开关电源传导EMI分析及抑制方法研究
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南京师范大学学报（工程技术版）[ISSN:1006-6977/CN:61-1281/TN]

卷:
19卷
期数:
2019年04期
页码:
070-74
栏目:
2019全国集成电路可靠性学术会议专栏
出版日期:
2019-12-31

文章信息/Info

Title:
Research on Power Conducted EMI Analysis and Suppression Methods
文章编号:
1672-1292(2019)04-0070-05
作者:
陈宝祥1; 祝志博2; 黄俊硕2; 王永安2
(1.江苏省医疗器械检验所,江苏 南京 210012)(2.南京师范大学江苏省电气装备电磁兼容工程实验室,江苏 南京 210023)
Author(s):
Chen Baoxiang1; Zhu Zhibo2; Huang Junshuo2; Wang Yongan2
(1.Jiangsu Medical Device Inspection Institute,Nanjing 210012,China)(2.Jiangsu Engineering Laboratory of Electrical Equipment Electromagnetic Compatibility,Nanjing Normal University,Nanjing 210023,China)
关键词:
开关电源; CRM Boost PFC变换器; 传导电磁干扰; 传导噪声抑制
Keywords:
power supply; CRM Boost PFC converter; conducted EMI noise; conducted noise suppression
分类号:
TM933
DOI:
10.3969/j.issn.1672-1292.2019.04.012
文献标志码:
A
摘要:
以开关电源中的CRM Boost PFC变换器为研究对象,研究了CRM下整流桥产生的电压变化率,阐述了交流电正负半周的差模、共模传导噪声的产生机理,分析了由于驱动电压过冲导致的传导电磁干扰问题,通过建立等效电路,提出了在整流桥电路加差模电容的电磁干扰抑制方法,该方法可有效降低传导电磁骚扰,为工程提供了实用的技术方案.
Abstract:
In this paper,the CRM(Critical Conduction Mode)Boost PFC converter in power supply is taken as the research object,the voltage change rates of rectifier bridge under CRM are studied,the generation mechanism of differential mode and common mode conducted noise in positive and negative half cycle of AC is expounded,and the conducted electromagnetic interference caused by driving voltage overshoot is analyzed. By establishing equivalent circuit,a method of EMI suppression with capacitor in rectifier bridge circuit is proposed. This method can effectively reduce the conducted EMI and provide a practical technical scheme for engineering application.

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期:2019-09-10.
通讯联系人:祝志博,博士,研究方向:电磁兼容技术与应用. E-mail:1822628862@qq.com
更新日期/Last Update: 2019-12-31