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1、Power2YouAGuidetoPowerSupplyManagementandControlBoardPowerManagementFunctionsLEARNHOWTO:»ReducePowerManagementCosts»IncreaseSystemReliability»ReducetheRiskofCircuitBoardRespinsShyamChandraPower2YouAGuidetoPowerSupplyManagementandControlShyamChandraiCopyright©2010LatticeSemiconductorCorporation,
2、5555NEMooreCourt,Hillsboro,Oregon97124,USA.Allrightsreserved.LatticeSemiconductorCorporation,LLatticeSemiconductorCorporation(logo),L(stylized),L(design),Lattice(design),LSC,ispPAC,PAC,PAC-DesignerareeitherregisteredtrademarksortrademarksofLatticeSemiconduc-torCorporationoritssubsidiariesintheU
3、nitedStatesand/orothercountries.Otherproductnamesusedinthispub-licationareforidentificationpurposesonlyandmaybetrademarksoftheirrespectivecompanies.RevisionHistory:April2010:FirstEditionSeptember2010:SecondEditionWhileeveryprecautionhasbeentakeninthepreparationofthisbook,theauthorassumesnorespo
4、nsibilityforerrorsoromissions,orfordamagesresultingfromtheuseoftheinformationcontainedherein.ACKNOWLEDGEMENTSIttakesateamofhardworkingprofessionalstotakeacollectionofdocuments,ideas,anddiagramsandturnthemintoafinishedbook.ManythankstoBrianKiernan,BuckBartel,ChrisDix,EdCoughlin,EdRamsden,GordonH
5、ands,JeffDavis,JimKrebs,JohnAlberts,MarkvanWyk,NancyKnowlton,ShojiSugawara,TedMarena,TroyScott,andVesaLauri.Thecontributionsandeffortsoftheseindividualshelpedtomakethedreamofthisbookareality.ISBN:978-0-578-06604-2iiTableofContentsChapter1.Introduction............................................
6、...........1-11.1Power2You............................................................................................................................................1-1WhatisPowerManagement?........................................................................................................
7、......1-1TypicalBoardPowerSupplyArchitectures........................................................................................1-2TypicalPowerManagementImplementationsandTheirDrawbacks........................................