基于bicmos技術的acdc開關電源管理ic的設計

1、江蘇大學碩士學位論文基于BiCMOS技術的ACDC開關電源管理IC的設計姓名：伊廷榮申請學位級別：碩士專業(yè)：農業(yè)電氣化與自動化指導教師：成立王振宇20090602江蘇大學碩士學位論文ABSTRACTSingle—chipswitchingpowersupplymanagementIntegratedCircuit(IC)hasshownstrongvitalenergiessinceitcameoutinthe1990’S，becaus

2、etheIChasmanyvirtuessuchashighintegrationlevel，mostcosteffective，lowestcomponentcountswitchersolutionandhighperformanceTheswitchingpowerICisselectedfirstlyinthedesignofhighpowerswitchingpowersupplyprecisionswitchingpower

3、supply，applicationspecificswitchingpowersupplyandSOonintheworld，whichhasbeenmakingswitchingpowersupplyshort，small，lightandthinBiCMOS(BipolarComplementaryMetal—xide—Semieonduetor)technologycombinesbipolardevicewithCMOSdev

4、iceeffectivelySOitnotonlyholdsCMOScircuit’Svirtues，butalsoobtainbipolarcircuit’SmeritsSotheICindustryareincreasinglyattachingmuchimportancetothenewtechnologyinrecentyearsAtypeofsingle—chipswitchingpowersupplymanagementIC

5、isdesignedfortheswitchingpowersupplyofAC／DCItintegrateslowvoltagecontrolportionsuchasPWMcomparatorvoltagereferencecircuit，sawtooth—wavegeneratorerroramplifierSoftactivationcircuitetc，andhighvoltagepowertubeinthesameInteg

6、ratedCircuitAdoptingBiCMOStechnologyimprovestheperformanceofICInthispaperthesub—circuitsaredesignedandemulatedcarefullyusingHSPICEandasresult，thesub—circuitanswertherequirementsthatwassettedinadvanceItworksathighfreqency

7、withpulsewidthmodulation(PWM)modeandthenormalworkingtemperatureis0。C78“C；theworkingfrequencyisfixedat130kHzSofarastheoutputsignalofthesinglechipICisconcerned，themaximuntimeproportionofitshighlevelis72percent，buttheminmum

8、oneis85percent，Conversionratecanreachthe87percentLastlythesyntheticcircuitisemulatedaboutpowerupworking，normalworking，automaticrestartworkingandovercurrentworking；theresultsofemulationmeetthefunctionrequirementTheforward