EMI電源濾波器優(yōu)化設(shè)計.pdf

1、分類號密級UDC注l學(xué)位論文EMI電源濾波器優(yōu)化設(shè)計(題名和副題名)賈科林(作者姓名)指導(dǎo)教師姓名王示電子科技大學(xué)副教授成都(職務(wù)、職稱、學(xué)位、單位名稱及地址)申請專業(yè)學(xué)位級別碩士專業(yè)名稱電子信息材料與元器件論文提交日期2008.3論文答辯日期2008.4學(xué)位授予單位和日期電子科技大學(xué)答辯委員會主席評閱人2008年月日注1:注明《國際十進(jìn)分類法UDC》的類號。ABSTRACTABSTRACTFirstly，F(xiàn)ouriertransfm1

2、5introdueedtoanalyzethenoisesPectrumofSMPS，andthenthePrineiPleofCMnoiseandDMnoise15diseussedresPeetively.Andthen，theeonveniionalEMInoiseseParatorsarestudied，andthedisadvantagesoftheseseParatorsarePoiniedout.Inordertoover

3、eometheobstaeles，aneweonductedEMItestne幻刀orkbasedonthetransmissionlinetransfmer15ProPosed.P田舊sitiePar田爪etersoftransfmerareeancelledinthistestnetwork.AndtheinPutando吻utlmPedaneesarematehedPreeisely.Aeedingtothetheyanalysi

4、s，aPhototyPe，時ud噸atransmissionliransfmerthatZ。151000，15Produeedtobeusedinexperiment.BasedonthePrineiPleofEMIfilter，theinflueneeofnoiseimPedaneetoEMIfilterPe月brmance15diseussed.Fromthetheoryanalysisandsimulation，wegetaeon

5、lusion:totheCMEMIfilter，theMaximuxnPossiblenoiseimPedaneeshouldbeeonsideredinthedesignProeedure，ontheeontr田下，theMinimumPossiblenoiseimPedaneeshouldbeconsideredintheProeedureofDMEMIfilterdesign.Aeeordingtotherequired毗en切a

6、tionandthePossiblenoiseimPedanee，thetoPologyandeomPonentvalueofEMIfilteraredetermined，aPhototyPe15Produeed.Ailast，wesimulatetheEMIfilterhaveaetualtestsindertotestifythedesign.ThetestresultsshowthataeertainSMPSthatdidnotP