X电容与Y电容对电气安全及电磁兼容性能的影响

Interaction of X-capacitor and Y-capacitor Between Electrical Safety and EMC Performance

介绍了X电容、Y电容在信息技术类设备电源适配器中的功能与作用,并结合实际测试中的整改与验证情况,分析了这两种安规电容对于电气安全与电磁兼容性能的影响,表明产品设计时应综合考虑选取关键元器件,避免元器件参数仅满足一方面测试需求而另一方面测试不通过,最终提高产品的设计与认证测试效率。

This paper introduces the functions and effects of X-capacitor and Y-capacitor in power adapters of IT equipment,by combining with actual rectification and verification cases,this paper analyses the influence by these two kinds of safety capacitors on electrical safety and EMC performance,this paper shows that the requirements of electrical safety and EMC should be taken into account comprehensively in product design,so as to avoid that the parameters of components only meet the test requirements on one hand and fail on the other,finally,the efficiency of product designing and certification testing is improved.