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1、IntroductiontoSolidStatePowerElectronicsEditor:JohnWilliamMotto,Jr.SemiconductorDivisionYoungwood,Pennsylvania15697AcknowledgementFebruary1977ThematerialforthisupdatedtextwasoriginallyCOPYRIGHT©1977BYPOWEREX,INC.writtenbyDr.WilliamE.Newell,anotedauthorityonpowerelectronicswiththeaidof
2、hisassociatesatAllRightsReservedtheWestinghouseResearchandDevelopmentInformationfurnishedinthistextisbelievedtobeCenter.Untilhisuntimelydeathin1976,Dr.Newellaccurateandreliable.However,Powerexcanassumehaddevotedmuchofhislifetohelpingpracticingnoresponsibilityforitsuse;noranyinfringeme
3、ntsofengineersandstudentsalikebetterunderstandthepatents,orotherrightsofthirdpartieswhichmayfieldofpowerelectronics.Asa“teacher”withinresultfromitsuse.NolicenseisgrantedbyWestinghouse,aswellasatCarnegieMellonimplicationorotheruseunderanypatentorpatentUniversity,Dr.Newelltestedthemater
4、ialsinthistextrightsofPowerex.well,withoverfiveyearsofuseandrefinement.WededicatethistexttothememoryofDr.Newellforhisunselfishcontributionstothefieldofpowerelectronics.InorderthatfuturegenerationsofengineersandstudentscanprofitfromtheeffortsofDr.Newell,TheWestinghouseElectricCorporati
5、onhasengagedhisfriendsandcolleagueJohnW.Motto,Jr.,toeditthiswork.Johnbringstothistaskover17yearsofapplicationsandratingsexperienceonpowersemiconductordevices.Wehopeyoufindthistextaworthwhileadditiontoyourreferencelibrary.Weappreciateanycommentsyoumighthavesothatyourideascanbereflected
6、insucceedingeditionsofthistext.POWEREX,Inc.200HillisStreetYoungwood,PA15697-1800iForewordThistextisdividedintothefollowingmajorchapters:AlthoughpowerelectronicshasaconsiderablyI.IntroductionlongerhistorythanmanybetterknownareasofII.DiodesandUncontrolledRectifierselectricalengineering,
7、itswidespreadsignificanceisIII.Thyristors,AC/DCConverters,andOtheronlynowbeginningtogainrecognition.Inasense,NaturallyCommutatedCircuitspowerelectronicsisthemarriageoftechniquesIV.Turn-offDevicesandSelf-commutatedCircuitswhicharecharacteristicallypower.ButtheV.PowerSemiconductorDevice
8、Prote