资源描述：
《llc半桥谐振变换器的研究》由会员上传分享，免费在线阅读，更多相关内容在学术论文-天天文库。
1、Subject：ResearchonLLCHalf-BridgeResonantConverterSpecialty：PowerElectronics&PowerDrivesName：ZhanMei(Signature)Instructor：LiuShulin(Signature)ABSTRACTResonantconverterhastheadvantageofhigheroperationfrequency,higherefficiency,lowerswitchingloss,smallerv
2、olume,lowerEMInoiseandlowerswitchingstresscomparedwiththePWMconverter.Resonancetopologyisalotofmorephyletic,theLLCresonantconverterhastheprimarysideswitchtubeeasytorealizefullloadrangeofZVS,secondarydiodeeasyrealizeZCSandinputvoltagerangewide,etc.andth
3、usreceivedextensiveattention.Thisthesisdiscussesthekindsofsoftswitchtechnologyanditsdevelopmenttrend,series,parallelandseries-parallelthreetraditionalsoft-switchingresonantconverterareanalyzedtheoretically,andtheadvantagesanddisadvantagesaresummarized.
4、Then,inthetraditionalLCresonantconverterbasedonaddingaparallelinductanceLLChalf-bridgeresonanceconverterinthecompositionoftheworkareahascarriedontheclassification,accordingtothetworesonantfrequencyfw(series-parallelresonantfrequency)andfo(seriesresonan
5、cefrequency),itcanbedividedintothreeworkarea,basedontheworkingprincipleofthedifferentregionsofthein-depthanalysisoftheworkbetweenthetworesonancefrequencyisobtainedLLChalf-bridgeresonanceconvertercanrealizetheoriginalsideoftheswitchtubeandvicesideofrect
6、ifierdiodesoftswitch.BasedonFHA(firstharmonicapproximation)methodforthegaincharacteristicsoftheLLChalf-birdgeresonantconverterhascarriedonthethoroughdiscussion,andconclusionisdeducedaharmonicparametersdesignmethod.Alsoanalyzestheconverterofnoloadandsho
7、rtcircuitcharacteristic.Basedontheabovetheoreticalanalysisanddesignmethods,developedaplatformbasedonL6599LLChalf-bridgeresonanceconverterprototype.Throughtheprototypeistestedandtheresultsareanalyzed,thetheoreticalcorrectionandthefeasibilityofdesignmeth
8、odareverified.Keywords:LLChalf-bridgeresonantconverter;Soft-switching;PWM;DesignofParametersThesis:ApplicationResearch目录目录1绪论...............................................................................................................
