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1、设计巴巴工作室www.88doc88.comHigh-frequencyswitchingpowerSupplycircuitofhighfrequencyswitchingpowersupplyfromthefollowingcomponents:first.amaincircuitfromtheexchangenetworkinput,DCoutputoftheentireprocess,including:animportfilter:itsroleistonetworktheclutterfiltration,butalsohinderedth
2、eplaneoftheclutterfeedbacktothepublicgrid.2,rectifierandfilter:directACpowerrectifierforsmootherDC,forunderatransformation.3,theinverter:Rectifierthehighfrequencyalternatingcurrentintodirectcurrent,high-frequencyswitchingpowersupplyisthecorecomponentofthehigherfrequency,size,wei
3、ghtandoutputratiosmaller.4,andtherectifieroutputfilter:UnderloadtheneedtoprovidestableandreliableDCpowersupply.Second,thecontrolcircuitwhileoutputfromthesample,withthesetstandards,thencontrolledinverter,changeitsfrequencyorpulsewidthoutputachievestability,ontheotherhand,accordin
4、gtotestdataprovidedbythecircuitbycircuitprotectionidentification,Controlcircuitfortheunitforvariousprotectionmeasures.Third,inadditiontoprovidingdetectioncircuitprotectioncircuitisrunningvariousparameters,butalsoprovideinformationdisplayinstruments.Fourth,theauxiliarypowersupply
5、circuitforthesinglepowersupplytothedifferentrequirements.SwitchingregulatorcontrolprincipleSwitchingControlSwitchingRegulatorsKprincipletoacertaintimeintervalrepeatedlyconnectedanddisconnected,connectedtotheswitchK,InputvoltageEandKthroughswitchingcircuitfiltertoloadRL,theentire
6、switchconnected,PowerEtoprovideenergyload;WhenKdisconnectswitch,theinputpowerisinterruptedE.energydelivery.Thisshowsthattheimportationofpowertoprovideenergyloadisintermittent,fortheloadcanbeprovidedfortheenergy,Switchingpowersupplymustbeasetofstoragedevices,theswitcheswillbeconn
7、ectedtoapartoftheenergystoredintheswitchdisconnected.Loadtotherelease.MapfromtheinductanceL,capacitancediodeDandC2componentsofthecircuit,itissuchafunction.InductorLforenergystorageinswitchdisconnected,storedintheinductorLofenergyreleasethroughdiodesDtoload,sothatloadiscontinuous
8、andstableenergy,diodeDenablecontinuousloadcurre