滤波器件抑制作用实例分析
Analysis on the Suppression Effects of Different Filter Components
摘要 介绍了常用的电磁干扰抑制器件,并以洗板机为例进行传导骚扰和辐射发射比对试验。通过逐一短路或开路洗板机电源中的各滤波器件,观察传导骚扰和辐射发射测试数据的变化,直观地体现了各滤波器件的实际滤波效果,有利于更好地掌握滤波器件的作用及使用方法。
关键词 滤波器件;开关电源;传导骚扰;辐射骚扰
Abstract The common EMI filter components are introduced.And then the comparison tests
of conducted emission and radiated emission on the microplate washer are carried out.By
opening or shorting out each filter components in the switching power supply of microplate
washer respectively, the changes of conducted emission and radiated emission test results
are analyzed to learn the actual filtering effectiveness of each component directly.And the
comparisons also could help engineers master the using method of filter components well
Keywords filter; switching power supply; conducted disturbance; radiated disturbance
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