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ID:33008962
大小:2.36 MB
页数:55页
时间:2019-02-19
《汽车电子产品电磁兼容性(emc)分析、仿真与优化设计》由会员上传分享,免费在线阅读,更多相关内容在行业资料-天天文库。
1、杭州电子科技大学硕士学位论文ABSTRACTElectromagneticcompatibility(EMC)isanimportantcriteriontomeasurethenormalfunctionandperformanceofdevice.Itisanissuethatmustbeconsideredinautomotiveelectronicsdesignforitsimportantimpactonimprovingthesafetyandreliabilityofelectronicdevices.Solvingsignalintegrityprob
2、lemsinthedesignphaseisthekeytocontrolEMCproblems.Thispapertriedtoimproveadevice’selectromagneticcompatibilityfromtheperspectiveofsignalintegrity,throughsignalintegritysimulationsandanalysisoftheprintedcircuitboard(PCB)toprovidereasonableconstraintsfortheoptimaldesignofadesignedcombinati
3、onswitchbasedoncontrollerareanetwork(CAN).Thisarticlefirstoverviewedavarietyofsignalintegrityissuesofelectronicequipmentinclassificationandintroducedsignalintegritysimulationtools,devicemodelsandsimulationprocessesusedinthehardwaredesign.Byresearchingonthebasictheoryofthetransmissionlin
4、e,usingdistributedparametermodel,thetransmissioncharacteristicsofthetransmissionlineandtheirimpactsonsignaltransmissionwasanalyzed.Then,thetwomainissuesofsignalintegrityabouttheproblemsofreflectionandcrosstalkwereanalyzedrespectivelybasedonthetransmissionlinetheory.Afterstudyingtheforma
5、tionmechanismofreflectionandcrosstalk,severalfactors`influenceonreflectionandcrosstalkwasdiscussedbysimulationandcomparativeanalysis,suchasthedifferenttypesofimpedancemutationsinthesignaltransmissionline,thetransmissionlinedelaytimeandthesignalrisingtime.Basedontheresultsofsimulationana
6、lysis,somemethodsinhardwaredesignwerepresentedtoreducereflectionandcrosstalk.Onthebasisofthesestudies,thispapersimulatedthesignalintegrityofcriticalsignalsonCANbusnetworkindesignedvehiclecombinationswitchtomakedesignoptimization.Bysimulatingthereflectionofsingle-endedanddifferentialsign
7、alsoncriticalnetworkforcommunication,thepresenceofovershootandjitterofthereceiversignalswhenusingdifferentmatchingmethodsterminationwerestudiedtoselecttheappropriatematchprogramsandmatchingparameters.Finallythesystemanalyzedthecrosstalkbetweenparallellinesinthemaximumoperatingf
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