PHILIPS快恢复二极管应用资料（SMPS）

2005-09-27Bipolar-PowerDiodesinSMPSPowerDiodesinSMPS(SwitchModePowerSupply)topology110/220V1.PFCdiode2.Snubberdiode3.OutputrectifierINPUTRECTIFICATIONBOOSTPOWERFACTORCORRECTIONForward/FlybackConverter1.PFCdiode3.Outputrectifier3.Outputrectifier2.SnubberdiodeComputer:desktopComputer:fileserverPowerDiodesinvariousSMPSapplication1.PFCdiode3.Outputrectifier3.Outputrectifier2.SnubberdiodeComputerandconsumeradaptorConsumer:displayPowerDiodesinvariousSMPSapplication1.PFCdiode3.Outputrectifier1.PFCdiode3.Outputrectifier2.SnubberdiodeAC/DCconverterPowerDiodesinvariousSMPSapplicationTelecom(switchingandterrestrialequipment)1.PFCdiode3.Outputrectifier1.PFC&Hyperfastrecoverydiodes(forContinuousCurrentMode):BYC5/8/10-600;BYC5/8/10B-600;BYC10-600CT;BYC8/10X-600*Remark:1.SOD113(TO-220F)isinsulatedpackageVrrm(V)trr(ns)Io(AV)(A)Vf(V)TO220AC(SOD59)D2PAK(SOT404)TO220AB(SOT78)SOD113(2-pinSOT186A)6001951.4BYC5-600BYC5B-6006001981.4BYC8-600BYC8B-600BYC8X-600*60019101.4BYC10-600BYC10B-600BYC10X-600*600192x51.4BYC10-600CTRemark:1.SOD113(TO-220F)isinsolatedpackage1.PFC&Ultrafastrecoverydiodes(forDiscontinuousCurrentMode):BYV29x-500/600;BYT79/28-500;BYV34/44-500;BYV29-600*;BYT79/X-600*,BYV34/X-600*Vrrm(V)trr(ns)Io(AV)(A)Vf(V)TO220AC(SOD59)D2PAK(SOT404)TO220AB(SOT78)SOD113(2-pinSOT186A)SOT186A(InsolatedTO220)6005591BYV29-600*BYV29B-600BYV29X-60060060151.05BYT79-600*BYT79X-600*60060201.12BYV34-600*BYV34X-600*5006091.03BYV29-500BYV29X-50050060101.05BYT28-50050060141.05BYT79-50050060201.12BYV34-50050060301.12BYV44-5002.FastSoft-RecoveryDiodes(forsnubberdiodes):§BY229X-200;BY229-600;BY229X-600/800;§BY329-1000/1200;BY329X-1200Vrrm(V)Io(AV)/If(AV)(A)trr(ns)SOD59SOD1132008135BY229X-2006008135BY229-600BY229X-6008008135BY229X-80010008135BY329-100012008135BY329-1200BY329X-12003.UltrafastRecoveryDiodes(forsnubberdiodesandsecondaryrectifiers):§BYW29xx-150/200;§BYV32X-100/150/200,BYV42x-150/200,BYV72EW-200,§BYQ28/30/40xx-200,§BYT28-300Vrrm(V)If(av)(A)Vf(V)If(A)trr(ns)DPAK(SOT428)D2PAK(SOT404)SOD113(2-pinSOT186A)SOD59(TO220AC)100200.9582515080.895825BYW29E-150150200.85825150300.85152820080.895825BYW29ED-200BYW29E-200200100.895525BYQ28ED-200BYQ28X-200200140.91430BYV79E-200200160.95825200200.85825BYV32EB-200200300.821528200300.851528200400.852030300101.05560SOT186A(isolatedTO220AB)TO220AB(SOT78)TO247(SOT429)BYV32E-100BYV32E-150BYV42E-150BYW29EX-200BYQ28E-200BYQ30E-200BYV32E-200BYV72EW-200BYV42E-200BYQ40EW-200BYT28-3003.UltrafastRecoveryDiodes(forsnubberdiodesandsecondaryrectifiers):§BYV29x-400/500/600,BYV34-400/500,BYV44-500,§BYT28-500,BYT79-500§BYR29x-600/800;Vrrm(V)If(av)(A)Vf(V)If(A)trr(ns)D2PAK(SOT404)SOD113(2-pinSOT186A)SOD59(TO220AC)TO220AB(SOT78)40091.03860BYV29-400400201.051060400301.12156050091.03860BYV29X-500BYV29-500500101.05560BYT28-500500141.051560BYT79-500500201.051060BYV34-500500301.121560BYV44-50060081.5875BYR29X-600BYR29-60060091555BYV29B-600BYV29X-60080081.5875BYR29-800§Appendix:PFC(PowerFactorCorrection)nPowerFactorCorrection(PFC)canbedefinedasthereductionoftheharmoniccontent,and/orthealigningofthephaseangleofincomingcurrentnPFCisnecessarytoreducedisturbanceonACdistributionnetandtomaximizetherealpowerdrawnbythepowersupplyfromtheACline.BoostPFCcircuitWhatisPFCdesktopAC/DCconverterfileserverdisplayUPSNotebookadaptorPlasmaTVLCDTVCRTTVBallastadaptorComputerConsumerTelecom(switchingandterrestrialequipment)LightingPFCdiodesinvariousapplicationsActivePFClComposedofinductor,diode,capacitorandMOSFETlPF0.98lBetterreliabilityPassivePFClOnlycomposedofcapacitor,inductorlPF=0.6~0.7lWorsereliabilityTwoPFCcategoriesDiscontinuousCurrentMode(DCM)•70Wtoaround200W•PFCMOSFETisturnedononlywhentheinductorcurrenthasreachedzero.•LowerVfispreferredContinuousCurrentMode(CCM)•Above200W•PFCMOSFETisturnedonwheninductorcurrentisstillabovezeroandallreverserecoveryenergyisdissipatedintheMOSFET.•Smallertrrispreferred•BetterperformanceTwoAPFCcategoriesCurrentAmplifierVoltageAmplifierDriver.nPreal(realpoweravailable)=Vrms*Irms*(maximumpower)*PFPF(powerfactor)=/whereTHDisthetotalharmonicdistortionandisthephaseshiftbetweenthevoltageandthecurrent.nTwocausesofpowerfactordegradation-Phaseshift:causedbyreactiveinductiveload(motor)orhighlycapacitiveload(electroluminescentlighting)-Distortion:causedbyrectificationintoacapacitivefilter,leadingcurrentspikesnottofollowtheinputvoltagewaveform.PFCbasicconceptMostoff-lineappliancesuseabridgerectifierassociatedtoahugebulkcapacitortoderiverawdcvoltagefromtheutilityacline.§Disadvantages:--resultsinahighharmoniccontentandinpoorpowerfactorratios.--resultsinahighchargecurrentspike,excessivevoltagedropsinthewiringandimbalanceproblemsinthethree-phasepowerdeliveryutilized.-apoorpowerfactor(intherangeof0.5-0.7)meansthatonly50%to60%ofthemaximumpowerisavailable.AClinewithoutPFCTypicalcircuitwithoutPFCLinewaveformwithoutPFCPF1andPrealPmaxAboostconverterplacedafterthebridgerectifiertransformsacrestintoaresistiveloadwithapowerfactorequal1andaverylowharmonicdistortion.nAdvantages:–reductionofmainsharmoniccontent–reductionofpeakcurrentatmains