摘要
随着电子设备高度集成化,高速数字印刷电路产生的辐射骚扰日益严重,电磁屏蔽方法可有效扼制辐射干扰噪声.然而,电子设备外壳易产生孔缝泄漏,大大降低了其电磁屏蔽效能.针对开关电源,探讨了原理,利用CST仿真软件对不同开孔情况进行比较,得到一般性结论,为辐射噪声抑制提供了理论依据.
With the high integration of electronic devices,the radiation harassment caused by high-speed digital printed circuits is becoming more and more serious,and the existing electromagnetic shielding measures can effectively suppress the radiation interference noise. However,the outer casing of the electronic device is prone to leakage of the aperture,thereby greatly reducing its electromagnetic shielding effectiveness. Therefore,this paper studies the switching power supply,first discussing its principle,and then using CST simulation software to compare different opening conditions,and obtaining general conclusions,which provides a theoretical basis for radiation noise suppression.
作者
白婉宁
赵阳
刘强强
蓝雨晨
邱巍
Bai Wanning;Zhao Yang;Liu Qiangqiang;Lan Yuchen;Qiu Wei(School of Electrical and Automation Engineering,Nanjing Normal University,Nanjing 210023,China;Jiangsu Engineering Laboratory of Electrical Equipment Electromagnetic Compatibility,Nanjing Normal University,Nanjing 210023,China;Sumec Complete Equipment and Engineering Co.,Ltd.,Nanjing 210018,China)
出处
《南京师范大学学报(工程技术版)》
CAS
2019年第4期86-91,共6页
Journal of Nanjing Normal University(Engineering and Technology Edition)
关键词
开关电源
屏蔽效能
开孔方式
孔阵排布
switching power supply
shielding effectiveness
opening method
hole array arrangement