屏蔽在高压大电流环境中抑制电磁干扰的应用  

Application of Shield Technology in Restraining EMI in High Voltage and Large Current Environment

作　　者：董新纲[1] 余军红[1] 

机构地区：[1]中国工程物理研究院电子工程研究所,四川绵阳621900

出　　处：《信息与电子工程》2006年第4期317-320,共4页information and electronic engineering

摘　　要：屏蔽是抑制电磁干扰的一种主要方法,它对提高电子设备工作可靠性有着十分重要的作用。针对延时电路高压大电流的电磁兼容问题,通过对实际工作电路的测试和比较,分析了延时电路的电磁干扰及屏蔽技术在抑制高压大电流回路电磁干扰中的作用,初步得到了抑制电磁干扰的屏蔽措施,并证明了该屏蔽措施对抑制高压大电流放电干扰的有效性。Shield technology is a primary method for restraining EMI, which plays an important role in increasing the reliability of electric equipments. In this paper, aiming at the EM compatibility problem of delay circuit with high voltage and large current, the factual high voltage and large capacitor discharge unit is tested, the EMI is analyzed. Subsequently, the shield method to restrain EMI is put forward . And the effectivity of this shield method is verified.

关 键 词：屏蔽 高压 大电流 电磁干扰 

分 类 号：TM85[电气工程—高电压与绝缘技术]