【導(dǎo)讀】SwitchingPowerSupplyDevelopmentTrack Developmentofswitchingpowersupply(ReviewXuanlan)switchingpowersupply(hereinafterreferredtoswitch power)toreplacethelinearregulatorpowertransistors(hereinafterreferredtothelinearpower)has30yearsofhistory, istheearliesttheseriesswitchingpowersupply,itsmainLinearpowersupplytopologiesandsimilar,butthepower transistortoswitchtoalaterstatePWM(PWM)controltechnique