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1、摘要DC/AC逆变器是应用功率半导体器件,将直流电能转换成交流电能的一种变流装置,供交流负载使用。因此,逆变技术在开发和利用的领域中有着至关重要的地位。本设计则针对车载逆变电源,系统地论述了DC/AC车载逆变器技术的现状、发展、制作过程及应用。其中通过采用芯片TL494CN构成了该逆变电源的核心控制电路,以及在电路中选用了EI33型的高频变压器,大大降低了该逆变电源的成本及重量,逐步改善了逆变器的性能。整个电路将输入的12V的直流电通过二次频变转换成220V/50Hz的交流电后输出,并且具有输出过压保护,输入过压保护以及过热保护等功能。关键词:逆变器,TL494
2、CN,高频变压器practitionerexaminationpractitionercertificate.Thirdstage:laboratorycontinuestorotateclinicallaboratorytesting,clinicalchemistry,ClinicalImmunologytests,ClinicalHematologylaboratory,clinicalmicrobiologytesting,inspectionandemergencybloodtransfusiontest7Professional.(2)roundsa
3、ndthethirdstageofconsultationWebtwiceaweektoattendmedical...Toknow:1.automaticbiochemicalAnalyzercalibration,operationandmaintenance.2.differentbiochemicaldetectionofanalyzersfortestandevaluation.3.thecorecollection,preservationandprocessingofallkindsofbiologicalspecimens.(E)professi
4、onalmasterofClinicalImmunologytest:1.ClinicalImmunology-relatedprojects,theresultsofreportsandclinicalsignificanceofroutinetesting.(1)hepatitislogoreal:hepatitisbserumlogorealofdetermination(HBsAg,andHBsAb,andHBeAg,andHBeAb,andHBcAb),andhepatitisaandhepatitiscvirusantibodydeterminati
5、on(2)tumorlogoreal:methyltireprotein(AFP),andcancerembryoAntigen(CEA),andsugarAntigen15-3(CA15-3),andsugarAntigen19-9(CA19-9),andsugarAntigen12-5(CA12-5),andprostatespecificantigen(PSA),andp-likecellcancerrelatedAntigen(SCC)(3)immunefunction:immuneglobulindetermination(IgG,andIgA,and
6、IgM,andIgD,andIgE),fillbodydetermination(C3,andC4),tlymphocytesAsiagroup,andanti-nuclearantibody(ANA),andanti-doublechainDNAantibody(AdsDNA),andanti-mitochondrialantibody,andrheumatoidfactor(RF)(4)virusantibody:bowinsect,andrubellavirus,andgiantcellvirus,andsimpleherpesvirusantibodyc
7、heck(TORCHtest)(5)otherclass:anti-Streptococcushemolyticpigment"o"(ASO),c-reactiveprotein(CRP),serumWidalreaction,outsidePei,andcoldagglutinationtest,specific-29-目录摘要I第一章绪论11.1课题选题背景11.2逆变技术的现状及趋势11.3采用逆变技术的目的11.4采用逆变技术的优越性2第二章课题有关内容的研究现状42.1逆变器主电路的基本形式42.2逆变电源的关键问题42.3车载逆变电源的现状52.4本
8、章小结6第三章车载逆变电