单端反激式开关电源设计与仿真.pdf

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1、第31卷第4期黑龙江大学自然科学学报V01．31No．42014年8月JOURNALOFNATURALSCIENCEOFHEILONGJIANGUNIVERSITYAugust，2014DOI：10．13482／j．issnl001—7011．2014．04．020Designandsimulationofsingleflyback●·●●_switchingpowersupplyGAOSu—ling一，QINLiang—ze(1．CollegeofElectronicInformationandElectricEngineer

2、ing，AnyangInstituteofTechnology，Anyang455000，China；2．CollegeofElectricalandElectronicEngineering，HarbinUniversityofScienceandTechnology，Harbin150080，China；3．CollegeofMechanicalEngineering，AnyangInstituteofTechnology，Anyang455000，China)Abstract：Today’Sswitchingpowersu

3、pplytowardthedevelopmentofintegrated，intelligent，greendirection，basedonthecomparisonofthecharacteristicsofcurrentcontrolandvoltagecontrolintwomodes，itfocusesontheworkingprincipleandadvantagesofthecurrent—modecontrolofswitchingpowersupply．Thenitintroducesthehigh-~eque

4、ncysingleflybackswitchingregulatorpowersupplywithcur—rentmodePWMcontrollerUC3842chipasthecore．Itdescribesindetailparametercalculationoftheflybackswitchingpowersupply．Finally，itgivesthepowerofthetestwaveform，analysisofthemecha—nismofthepoweroutputripple．Keywords：switc

5、hingpowersupply；UC3842；singleflybaek；simulationCLCnumber：O189．1Documentcode：AArticleID：1001—7011(2014)04—0556—05单端反激式开关电源设计与仿真高素玲，秦良泽(1．安阳工学院电子信息与电气工程学院，安阳455000；2．哈尔滨理工大学电气与电子工程学院，哈尔滨150080；3．安阳工学院机械工程学院，安阳455000)摘要：当今开关电源正向着集成化、智能化、绿色化的方向发展，在比较电流控制和电压控制两种模式特点的基础上，重

6、点阐述电流型反激式控制开关电源的工作原理和优点。设计以电流型PWM控制器UC3842芯片为核心的高频单端反激式开关稳压电源。确定反激式开关电源变压器的参数计算。最后给出了电源的试验波形，并分析了电源输出波纹产生的机理。关键词：开关电源；UC3842；单端反激；仿真0IntroductionHigh一~equencyswitchingpowersupplywithitssmallsize，lightweight，highefficiencyconversionarewidelyReceiveddate：2013—12—21Foun

7、dationitem：SupportedbyKeyScientificandTechnologicalProjectofHenanProvince(122102210017)；YoungBackboneTeachers’inColle—gesFundedProjectofHenanProvince(2013GGJS一217)；TheEducationDepartmentofHenanProvinceScienceandTechnologyResearchProgram(14A510002)Biography：Ms．GAOSu-l

8、ing(1983一)，lecturer，M．S．interestedin：switchingpowersupply，E—mail：gaosuling163@163．COBCitethis：GAOSu-ling，QINLiang—ze．Designandsimul