直流-直流(DC DC)变换器.doc

-(DC/DC)DC/DCTston()1BuckU0Ui2BoostU0Ui3BuckBoostU0Ui4CukU0UiSepicZetaDC/DCVICORECIDC/DC300W600W800W(6.21017)W/cm38090%NemicLambdaRM200300)kHz27W/cm3MOS?FET90%AC/DCAC/DC50/60HzULCCEEEMCIECFCCCSAEMCAC/DCEMCAC/DCDC-DC converter-DC-DC converterPWME/AUC3842FBFB pinVFBVcompPWMPWMPWMMOSFETUd0Uo(4-1)TsD?31Tston(PWM)?2tonTs?3. tonTs1PWM21?4-2(a)uco4-2(b)D(4-2)?-1. 2.?DC-DCBuckBoostDC-DCDC 10-14.5VDC-DCBuck5VBoost19VDC-DC90%DC/DC EEPW 0 2009-9-22DC/DCDC/DCLucentDC/DC30W78%DC/DC300W93.5%DC/DCMOSFETMOSFETVICORZVSZVSVICORZVS20022VICORDC/DC1MHZ200W/in390%MOSFET1MHZ90%IPDPMOSFETforwardMOSFETZVSPMOS2001NMOSFETZVS92%250W/in3DC/DC250W92%ZVS90MOSFETDC/DC1/2810%DC/DCPWM ZVSUC3875UCC3895PWMLTC1922-1LTC3722-1/-2ZVSZVS ZCSDC/DCUCC3722-1/-2,.LTC3722DC/DCMOSFETMOSFET5M0.5MMOSFET 80V40A5m20ns20ncDC/DC90%5VMOSFET12V20VICSTSTSR2STSR3LTC3900LTC3901IC.IC2002ZVS,ZCSDC/DC95%ZVS,ZCS24VPWMMOSFETMOSFETMOSFET95%CoolSet,12V15V28V5VZVSZCSNCP1560LTC1681LTC1698ZVS,ZCS,TIMOSFET,MOSFETZVS,MOSFETMOSFETMOSFETMOSFET48%50%2.5MOSFET3.3VMOSFET12V20V30VMOSFET12VMOSFET20VMOSFETSynQorBuckforwardBuck3675V26V3060%forward50%180o,BuckforwardSynQor92%ICUCC3843ICBuckSynQorZVS,ZCSZVS,ZCS94%IC100VBuckICICICICLM5041BuckUCC3895RCD90%DC/DCMOSETICMOSFETMOSFETMOSFET100WDC/DC100WDC/DC50%forward50%MOSFET30%DC/DCDC/DC DC/DCDC/DCPWM IC,MCUDC/DCPWM,DSP,DC/DCTITSM320L2810,DC/DCDSPDC/DC1 MOSFETDC/DC2 Schottky3 ICa. b. c. ZVSZCSd. PWM IC=ICDC/DC4 DSPDC/DC5 DC/DCDC/DCAC/DCPFCL/CDC-DCChopTstonTsDD=ton/TstoffTsDD= toff/Ts1/Ts=fsfsDC-DCPulse Width Modulation,PWMPWMResonanceLCZero Voltage Switching ZVSZero Current Switching ZCSLCLCLCLCLCPWM-PWM-PWM-PWMZCSZVSPWMZCS-PWMZVS-PWMPWM-PWM-PWMPWMDC-DCPWMBuckBoostBuck-BoostCukSepicZetaDC-DCPWM-DC-DCCCMContinuous Conduction ModeD