SwitchingPowerSuppliesAtoZThisPageIntentionallyLeftBlankSwitchingPowerSuppliesAtoZSanjayaManiktalaAMSTERDAM•BOSTON•HEIDELBERG•LONDONNEWYORK•OXFORD•PARIS•SANDIEGOSANFRANCISCO•SINGAPORE•SYDNEY•TOKYONewnesisanimprintofElsevierNewnesisanimprintofElsevier30CorporateDrive,Suite400,Burlington,MA01803,USALinacreHouse,JordanHill,OxfordOX28DP,UKCopyright©2006,ElsevierInc.Allrightsreserved.Nopartofthispublicationmaybereproduced,storedinaretrievalsystem,ortransmittedinanyformorbyanymeans,electronic,mechanical,photocopying,recording,orotherwise,withoutthepriorwrittenpermissionofthepublisher.PermissionsmaybesoughtdirectlyfromElsevier’sScience&TechnologyRightsDepartmentinOxford,UK:phone:(+44)1865843830,fax:(+44)1865853333,E-mail:permissions@elsevier.com.Youmayalsocompleteyourrequeston-lineviatheElsevierhomepage(http://elsevier.com),byselecting“Support&Contact”then“CopyrightandPermission”andthen“ObtainingPermissions.”Recognizingtheimportanceofpreservingwhathasbeenwritten,Elsevierprintsitsbooksonacid-freepaperwheneverpossible.LibraryofCongressCataloging-in-PublicationDataApplicationSubmittedBritishLibraryCataloguing-in-PublicationDataAcataloguerecordforthisbookisavailablefromtheBritishLibrary.ISBN13:978-0-7506-7970-1ISBN10:0-7506-7970-0ForinformationonallNewnespublicationsvisitourWebsiteatwww.books.elsevier.com060708091010987654321PrintedintheUnitedStatesofAmericaContentsPreface.........................................................................xiAcknowledgements..............................................................xviiChapter1:ThePrinciplesofSwitchingPowerConversion.........................1Introduction......................................................................3OverviewandBasicTerminology..................................................5UnderstandingtheInductor........................................................22EvolutionofSwitchingTopologies.................................................43Chapter2:DC-DCConverterDesignandMagnetics...