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:EMI

SuppressionofEMIConductedinPWMInverterBasedonEMIFilter

PeiXuejunZhangKaiKangYongChenJian

Abstract:ThenoisesourceandloadimpedancehavelargeeffectsontheinsertionlossofEMIfilter.According

tothecharacteristicofnoisesourceconductedinPWMinverterandloadimpedance,amethodofdesigning

EMIfilterwasproposedonthebasisofexistentdesigningprincipleofEMIfilter,whichsimplifiesthedesign

ofEMIfilter.TheEMInoisesinLISNareattenuatedtothemostextentusingthedesignprinciple.Practical

designexamplesincludingCMandDMEMIfilteraregiven.TheexperimentalresultsindicatetheEMIfilter

designmethodissimpleandeffective.

Keywords:electromagneticinterferencefilternoisesourceimpedancecommonmodeinterferencedif2

ferentialmodeinterference

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5ShihFY,ChenDY,WuYPetal.AProcedurefor

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