開關(guān)電源設(shè)計參考大全幾十種拓?fù)鋱D

1、Power Topologies Quick Reference Guide'Texas Instruments*5dJ±C1 ,C2a-ND玄 求-j_CTXiHI 忡D丄也 *1VCHLJI20164/1/16 3:06 PMTPowerma nageme nt_cover2.i ndd 1T#Power Topologies Quick Refere nee GuideTBuckD = Vout + Vf =Vin+ VfVoutVinBoostL1D1liTQ -6Q1LJCoD = Vout + Vf - VinVout + VfDutyCycleQ1 FETVqi

2、 = Vin + VfVoltageVQ1 = Vout + VfD1 DiodeVoltagePWMVD1 = VinVQ2 = VinjQ1 FET VoltageQ1 FET CurrentD1 Diode /Q2 FETVoltageD1 Diode /Q2 FETCurrentL1 InductorCurrentL2 InductorCurrentli IVD1 = Vout3Power Topologies Quick Refere nee GuideTPower Topologies Quick Refere nee Guide#TIn vert ing Buck - Boost

3、*D1Q1JCoD = -Vout + Vf-Vout + Vf + VinVQ1 = Vin + Vf - VoutVD1 = Vin - VoutSepicL1C1D1Vout + VfVout + Vf + VinVQ1 = Vin + Vout + Vf +VD1 = Vin + Vout +ONVC1,rippleVC1,ripple=2Cuk-Vout + Vf-Vout + Vf + VinVQ1 = Vin - Vout + Vf +VD1 = Vin - Vout +ZetaVC1,ripple2VC1,ripple2Q1C1L2VQ1CiL1D1Vout + VfVout

4、+ Vf + Vin=Vin + Vout + Vf +VD1 = Vin + Vout +ONVC1,ripple2VC1,ripple2Power Topologies Quick Refere nee Guide5T# Power Topjogies Quick Reference GuideTCiDutyCycleQ1 FET VoltageD1 DiodeVoltagePWMQ1 FET VoltageQ1 FET CurrentD1 DiodeVoltageD1 DiodeCurrentNp PrimaryCurrentNs SecondaryCurrentFly - Buck?D

5、1NsQ1Q2Co2CiNpCo1Q1Vout_priVinFlybackNpNs(Vout + Vf) ?D =D1NpNsNpVin + (Vout + Vf) ?NsN pVQ1 =Vin +(Vout + Vf)? nsNsVD1 = Vout + Vin ? NpD =N pNsVin + (Vout + Vf) ?N pVin + (Vout + Vf) ?nVQ1 =sNsVD1 = Vout + Vin ? Np117 Power Topjogies Quick Reference GuideTPower Topologies Quick Refere nee Guide#Tc

6、h Flybackch FlybackActive Clamp ForwardSi ngle Switch ForwardTwo Switch ForwardD1L1D1L1D4Q2D1L1C1NpNsD2CoQ2CiNdNpCiNsD2CoCiNpNsD2CoD3Q1Q1D3Q1NsNNpo u+NVf)? NNssDutyCycle(Vout + Vf)NsV ?in np(Vout + Vf)NsV. ? in n p(Vout + Vf)NsV. ? in n pNpNH p3 Ns2Wut + VN)? + Vi2 ?NpNsQ1 FETVoltage+ VinNsNpD1 Diod

7、eVoltageD2 DiodeVoltageVqi = Vin(1-D)NsVD1 = Vclamp ?“- VfpNsVD2 = Vin ? N - VfpVQ1 =2 ? Vn + VfVQ1 =Vin + VfNsNsVD1 = (Vin + Vf)? N - VfdNsVD2 =Vin ? n - VfpNsVD1 = (Vin + 2 ? V)? N - VfpNsVD2 =Vin ?N- VfpDutyCycleDutyCycleQ1 FET Voltage Q1 FET DVoDagdeVoltageD1 DiodeVoltagePWMPWMPWMFET Q1 VoltageF

8、ET Q1 VoltageFET Q1 VoltageFET Q1CurrentNpPrimary CurrentSecondary CurrentInductor L1 Current1/J*4電4FET Q1CurrentFET Q1CurrentNp1 PrimaryCurrentNp1 PrimaryCurrentNs2SecondaryCLNsntSecondaryCurrentInductor L1CurrentInductor L1CurrentPower Topologies Quick Refere nee Guide9TPower Topologies Quick Refe

9、re nee Guide#TDutyCyclePush-Pull Push-PullD1L1Np2Ns2CoNp1Ns1CiQ2Q1D2Duty D =Cycle(Vout + Vf)D = 2 Vin ? N5 p(Vout + Vf)NVin ?nspNsNpCiQ2Wei nbergD3D1NpNsNsNpNpNsD2CiQ1Q2D3D1NC?Ns2Np1Ns1D2Q1CoQ1 FET VoltageQ1 FET VoltageD1 Diode VoltageD1 DiodeV VoltageONPWMPWMOFFVQ1 =2 iVVQ! =2NiVDutyCycleQ1 FET Vol

10、tageD1 DiodeVoltageVout + VfNNsNpVQ1 = Vin + 2 ? p ? (Vout + Vf)NsVD1 = 2 ? (Vout + Vf)FET Q1 Voltage=2D1s-iV VD1 =-2/f iV - VfppFET C VoltagInductor L1 CurrentPWMFET Q1 VoltageFET Q1 CurrentNp PrimaryCurrentNsSecondaryCurrentNp1 PrimaryCurrentNs1SecondaryCurrentPower Topologies Quick Refere nee Gui

11、de11TPower Topologies Quick Refere nee Guide#TN N NDutyCycleQ1 FET VoltageU?U+fMfVf)D1 DiodeVoltagePWMQ1 FETVoltageQ1 FET CurrentNp PrimaryCurrentNs SecondaryCurrent &Diode D1CurrentDiode D1VoltageInductor L1CurrentHalf - BridgeVNsinVQ1 = VinNsVD1 =Vin ? nP-VfFull - BridgePhase ShinedFull - Brid

12、geQ3Q2D1L1Ns1CoCiNpNs2Q4Q1D21 Vout1 ?2 'V.in+VfNsNpQ1=VinVout + VfD =Vin ? *1Lp + LshVQ1 = Vin(Transformer)NsNpN2 ? V ?L Ns *in p sVD1 = 2 ? Vn ?一 VfV =?- VfD1in N TD1l + L ? N fpp spPower Topologies Quick Refere nee Guide13IMPORTANT NOTICETexas Instruments Incorporated and its subsidiaries (TI)

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