台湾DA-14B3反激设计全过程

bbs.hqeepower.com----Xj75395112:2.1PCBLayout.2.2.2.3.2.4.3(DA-14B33):3.1PCBLayout.3.2:DA-14B33.3.2.1:GaussxNpxAeLpxIpB100(max)B(max)=(Gauss)Lp=(uH)Ip=(A)Np=()Ae=(cm2)B(max)TDKFerriteCorePC40100B(max)3900Gauss3000~3500GausspowerAdapter()3000GaussAePower3.2.2:Vin(min)Vin(win)Power3.2.3:BobbinBobbin6A/mm23.2.4Dutycycle():DutycycleDutycycle50%Dutycycle50%bbs.hqeepower.comxDVinDxVVoNpNsD(min))1()(NS=NP=Vo=VD=Vin(min)=D=(Dutycycle)3.2.5Ip:IIavIp21xDxVinPoutIav(min)fPxLpVinI(min)Ip=Iav=Pout=fPWM3.2.6:3.2.7MOSFETStress():(Stress)264V(380V)3.2.8:5VTL431TL432PhotocouplerTL4313.2.9GaussxNpxAeLpxIpB100(max)B(max)B(max)3.2.10DA-14B33:13.2W(3.3V/4A)Core=EI-28()=10mmMarginTape=2.8mm()=4.4mm.fT=45KHzVin(min)=90V=0.7P.F.=0.5(cos)Lp=1600Uh:bbs.hqeepower.com:PC-40=EI-28Ae=0.86cm2()=10mmMarginTape2.8mm4.4mm.47uF/400VVin(min)90V:AxxxxVinPoutIin42.05.07.0902.13cos(min)NP0.32=Axx286.11024.014.342.0232.014.342.02=57.1203.032.04.4Secondary0.35=Axx07.440289.014.34235.014.3424P=A02.11407.44=57.1103.035.04.4Dutycycle:Np=44TNs=2TVD=0.5(schottkyDiode)DVinDVVoNpNsD(min)1%2.489015.03.3442DDDIp:bbs.hqeepower.comIIavIp21AxxxDxVinPoutIav435.0482.07.0902.13(min)AKxufDxLpVinI603.045482.0160090(min)AIp737.02603.0435.0:=12V128.31ANNs128.321ANNA1=6.30.23=13.19)02.023.0(4.4NA1=6Tx2P=11.4VMOSFETStress():MOSFET(Q1)=(380V)+DVVoNsNp=5.03.3244380=463.6VDiode(D5)=(Vo)+NpNsx(380V)=3804423.3x=20.57VDiode(D4)=)380()(2VxNpNsNA=3804446.6x=41.4Vbbs.hqeepower.com:3.3VTL431Vref2.5Vphotocoupler1.2VPhotocouplerTL431NA2=4T0.35=T58.1103.035.04.4NA24Tx2P228.3AAVNNsVVVAA6.78.34222GaussxxxGaussxNpxAeLpxIpB3.311610086.044737.01600)(100(max):3.3:():(DA-14B33Schematic)3.3.1FS1:IinIin(0.42A)2A/250VPin(max)Iin3.3.2TR1():0.32x1Px22T0.32x1Px22T0.35x2Px4T0.35x4Px2T0.23x2Px6Tbbs.hqeepower.comC1()IinPowerIinSpec(115V/30A230V/60A)()SCK053(3A/5)C1(Power)3.3.3VDR1():PowerAC(Fuse)Power(07D471K)3.3.4CY1CY2(Y-Cap):Y-CapY1Y2ACInputFG(3Pin)Y2-CapACInput2Pin(LN)Y1-CapY1Y2(Y1)(Y1Y2Y1)FGY2-CapY-CapEMI(LeakageCurrent)(3Pin750uAmax)3.3.5CX1(X-Cap)RX1:X-CapEMIEMIConductionRadiationConduction:FCCPart15JClassBCISPR22(EN55022)ClassBFCC450K~30MHzCISPR22150K~30MHzConductionRadiationX-Cap(150K~M)EMIX-CapEMI()X-Cap0.22uf(0.22uf)(RX11.2M1/4W)3.3.6LF1(CommonChoke):EMIConductionEMICommonChoke()EMI3.3.7BD1():ACDCIin1A/600V600V3.3.8C1():C1()Vin(min)Vin(min)Vin(min)ACInput90V~132V(Vc1190V)200V;ACInputbbs.hqeepower.com90V~264V(180V~264V)Vc1380V400V3.3.9D2():FR105(1A/600V)BYT42M(1A/1000V):1.()2.VF(FR105=1.2VBYT42M=1.4V)3.3.10R10():PWMICVCC3843VCC8.4V(Min.Load)VCC()3.3.11C7():PWMIC100uf/25V3.3.12Z1(Zener):3843VCC3843Pin3ZenerDiodeZenerDiodePin31V.Z1Z1Q1VGS(1/2W).3.3.13R2():3843R2C73843VCCR2turnonPinR2turnonPin220K/2WM.O.3.3.14R4(LineCompensation):3843Pin390V/47Hz264V/63Hz(750K~1.5M1/4W)3.3.15R3C6D1(Snubber):SnubberSnubber:1.Q1offSpikeSnubberSpikeQ12.SnubberEMI.D11N4007(1A/1000V)EMI.R32WM.O.C6(500V)3.3.16Q1(N-MOS):3A/600V6A/600V6A/600VRDS(ON)3A/600VIDS3Abbs.hqeepower.com3A/600V6A/600V3A/600VQ1VDS3.3.17R8:R8Q1Q13.3.18R7(Rs):3843Pin31VR7R42WM.O.R7R43843Pin30.85V~0.95V(1V1V)3.3.19R5C3(RCfilter):3843Pin3R51K1/8WC3102P/50VC3(3843Pin31V);Pin3.3.20R9(Q1Gate):R9EMIQ1turnon/turnoffEMIQ1(turnoff);Q1turnon/turnoffQ1EMI51-1501/8W3.3.21R6C4():3843DataSheetRCC410nf(5%)R6DA-14B33C4103P/50VPER63.74K1/8W45KHz3.3.22C5:RCfilter101P/50V3.3.23U1(PWMIC):3843PWMICPhotoCoupler(U2)DutyCyclePin3(1V)3843KA3843(SAMSUNG)UC3843BN(S.T.)UC3843BNKA38432KHzfT(:EMI)KA3843UC3843BN3.3.24R1R11R12C2():3843ErrorAMP()R1R11R12C2ErrorAMPbbs.hqeepower.comC2()3.3.25U2(Photocoupler)(Photocoupler)()TL431U23843Pin6(output)off(Low)Q1Photocoupler(primacytosecondary5.6mm)3.3.26R13():PhotocouplerR13PhotocouplerU2()R13PhotocouplerU23.3.27U3(TL431)R15R16R1816//151816//13RRRRRxVrefVo38V(TL431VKA36VPhotocouplerVFVo38V)TL431Vref2.5VR15R16R15R16(2K)3.3.28R14C9():Dynamicload3.3.29D4():3.3V(OutputVoltageRegulator)TL431(Vref=2.5V)TL432(Vref=1.25V)PhotocouplerTL431U2U3(10mA)100V1N4148(0.15A/100V)3.3.30C8():U2U31u/50V3.3.31D5():D5:a.b.DA-14B334A10A(Schottky)D515A10AVF15AVF40V15A/40VSchottkybbs.hqeepower.com3.3.32C10R17(snubber):D5spikespike(D5)snubberspikeEMIR171/2WC10500Vsnubber(264V/63Hz)R17,C103.3.33C11C13():(LXZYXA):a.Rippleb.c.3.3.34R19():()3.3.35L3C12(LC):LCL3()C124:()a.b.c.QEDA-14B33()4.1.1:4.1.1.13843PIN3(fullload4A):90V/47Hz=0.83V115V/60Hz=0.83V132V/60Hz=0.83V180V/60Hz=0.86V230V/60Hz=0.88V264V/63Hz=0.91V4.1.1.2DutyCycle,fT:%5.4735.2115.108.4647/90CycleDutyusTustonKHzfHzVTbbs.hqeepower.com%2.1535.2125.38.4660/264CycleDutyustustonKHzfHzVT4.1.1.3Vin(min)=100V(90V/47Hzfullload)4.1.1.4Stress(264V/63Hzfullload):Q1MOSFET:D5:D4:4.1.1.5()Pinmax.:.)(max2.1)4(26.11)0.18A(8.4V47/90WAVHzV.)(max8.8)4(26.11)0.13A(8.4V63/264WAVHzV4.1.1.6Static(fullload)bbs.hqeepower.comPin(w)Iin(A)Iout(A)Vout(V)P.F.Ripple(mV)Pout(w)eff90V/47Hz18.70.3643.300.573213.2270.7115V/60Hz18.60..3143.300.522813.2271.1132V/60Hz18.60.2843.300.502913.2271.1180V/60Hz18.70.2143.300.493013.2370.7230V/60Hz18.90.1843.300.462913.2269.9264V/60Hz19.20.1643.300.452913.2368.94.1.1.7FullRange(0.3A-4A)()4.1.1.8()90V/4