采用磁集成技術的多路輸出變換器的研究.pdf

1、分類號UDC密級學校代號學號曠78661110561200320100667華南理工大學碩士學位論文采用磁集成技術的多路輸出變換器的研究喬蕾指導教9幣：到丞強副熬援坐直理至盔堂皇左堂隧申請學位級別：亟專業(yè)名稱：皇查魚王皇皂盔堡墊論文提交日期：2鯉!論文答辯日期：19堂一5學位授予單位和日期：答辯委員會主席：論文評閱人：蘭塑墨三盔蘭堡圭蘭壁笙塞AbstractNowadays，powersupplyminiaturizationisama

2、instreamexposureofpowersupplydesignGenerally，increasingtheswitchingfrequencyofpowersupplyisusedtominishvolumeandreducepowerlossofmagneticelement，butthereissomewhatlimitationinthemethodofhighfrequencyResearchershavedoneal

3、otofresearchformagneticelementinconvertersinordertogetthesmallersizeandthelowerlossofmagneticsandassureconverterperformance，inresult，integratedmagnetics(IM)isputforwardWedefinetheintegratedmagneticsconceptastheprocessinw

4、hichtheinduetorsandtranformersaremergedintoasinglemagneticcircuitwithmultiplewindingsIMhelpsnotonlyachievehighpowerdensity，reducethetotalvolumeandweightoftheconverter，butalsoeliminatethecurrentripple，reducethelossandimpr

5、ovedynamicperformance，whichissignificanttoimprovetheperformanceofpowersupplyFirstlyasummaryaboutthepresentstatusandapplicationofIMispresentedinthisthesisincludingtopologycircuitsadaptedt0IMandrespectiveIMstructuresforthe

6、differentcircuitsThedesignprocessandanalysismethodaboutIMisachievedbasedondoingresearchonagreatlotliteratureThesesurveysprovidegroundworkforthechoiceoftopologycircuitanditsIMstructure，andprovideeffectivemethodandtrainoft

7、houghtsforthedesignandanalysisoflMThereareseveralfilteringinductorsandatransformerwithmultisecondarywindingsinamultiple—outputpowersupplyWhenthesemagneticcomponentsareseparate，eachcomponentmusthaveamagneticcoreThepowersu

8、pplyhasalargevolumeinthiswayIMisusedinthemultipleoutputconverterwhichCanreducethetotalvolume，increasepowerdensityandimproveoutputcurrentripplePresentlymultipleoutputconvertersonlyputseveraloutputinductancesonamagneticcor

9、e，themultipleoutputtransformerisstillseparateIfthemultipleoutputtransformerandseveralcoupledinductorsareintegratedonasamemagneticcore，undoubtedlythevolumeofconverterwillbereducedSecondlyanintegratedmagneticstructureconsi

10、stingofatwooutputtransformerandtwocoupledinductorsisdesignedusingtheforegoingapproachTheIMconverterdesignprocedureispresentedindetail，andtheequivalentcircuitandtheequivalentmagneticcircuitoftheintegratedmagneticisanalyze