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Saber®ModelArchitectToolUserGuide139I-2013.1266PowerMOSFETToolProvidesinformationonhowtousethePowerMOSFETToolforcharacterizingalevel-1PowerMOSFET.Thissectioncoversthefollowingtopics:■PowerMOSFETToolOverview■PowerMOSFETToolUseModel■PowerMOSFETToolInvocation■PowerMOSFETModelConfigurationSetup■PowerMOSFETModelCharacterization■PowerMOSFETModelValidation■PowerMOSFETModelUsagePowerMOSFETToolOverviewThePowerMOSFETToolcreatesahighfidelitylevel-1powerMOSFETmodelwithoptimizedparameters.Ahighfidelitymodelreducesconvergenceerrors.TheLevel-1powerMOSFETmodelisusefulforbothtraditional(LDMOS)andthenewerCoolMOS®typesofpowerMOSdevices,anditiswellsuitedforexaminingswitchingtransientsandlossesinpowersupplies.Afairlylowlevelofcomplexityensuresgoodconvergenceperformance.ThePowerMOSFETToolsimplifiesthecharacterizationprocessintoasequenceoflogicalsteps.140Saber®ModelArchitectToolUserGuideI-2013.12Chapter6:PowerMOSFETToolPowerMOSFETToolOverviewThefeaturesofthePowerMOSFETToolare:■Allowsinteractivetuningoftheparametersusinganchorobjects.Anchorobjectsaregraphicalwidgetsdirectlyplacedonthemodelcharacteristics.■AnoptimizertohelpmatchingthemodelDCcharacteristicswithexperimentaldata.■Limitedparametersusedincharacterizationmakesthemodelseasilycharacterizablefromthedatasheetinformation.Thissectioncoversthefollowingtopics:■PowerMOSFETToolUseModel■PowerMOSFETToolInvocation■PowerMOSFETModelConfigurationSetup■PowerMOSFETModelCharacterization■PowerMOSFETModelValidation■PowerMOSFETModelUsageSaber®ModelArchitectToolUserGuide141I-2013.12Chapter6:PowerMOSFETToolPowerMOSFETToolUseModelPowerMOSFETToolUseModelThefollowingdiagramdepictsthetypicalprocessflowforthePowerMOSFETTool.142Saber®ModelArchitectToolUserGuideI-2013.12Chapter6:PowerMOSFETToolPowerMOSFETToolInvocationPowerMOSFETToolInvocationToinvokethePowerMOSFETtool:1.ChooseToolsModelArchitectfromthemenuorclicktheModelArchitecticonlocatedatthebottomofthewindow.TheModelArchitectToolsdialogboxisdisplayed:2.FromtheModelArchitectTooldialogbox,chooseToolsPowerMOSFETToolorclickthePowerMOSFETToolbutton.ThePowerMOSFETtoolisdisplayed.PowerMOSFETModelConfigurationSetupYoucanspecifytheinitialconfigurationsettingsyouwanttoincludeinthepowerMOSFETmodelthatyouwishtocreate.Thissectioncoversthefollowingtopics:■SpecifyingStrayInductance■SettingtheSymbolPreferencesSaber®ModelArchitectToolUserGuide143I-2013.12Chapter6:PowerMOSFETToolPowerMOSFETModelConfigurationSetupSpecifyingStrayInductancePerformthefollowingstepstospecifythestrayinductance:1.ChooseEditStrayInductanceinthePowerMOSFETTooldialogbox.ThestrayinductancevaluesLd,Ls,andLgaredisplayedonthemodel.144Saber®ModelArchitectToolUserGuideI-2013.12Chapter6:PowerMOSFETToolPowerMOSFETModelCharacterization2.ChooseEditInductancestospecifythestrayinductancesforthemodel.TheInductancesdialogboxisdisplayed.Note:YoucanspecifythestrayinductancesonlywhenyouchooseEditStrayInductance.3.SpecifytheinductancevalueofLd,Ls,andLgasrequiredandclickOKtoapplythenewinductancevalues.SettingtheSymbolPreferencesYoucanspecifywhethertouseaninternalsymbolorgeneratethesymbolforthepowerMOSFETmodel.Tospecifythesymbolsetting,clickEditandselectthepreferredsymboloptiontobeusedwiththemodel.PowerMOSFETModelCharacterizationTocharacterizeapowerMOSFETmodelyouneedtocharacterizetheDCproperties,capacitance,thermalcharacteristics,andbodydiode.EachIfyouchoose...then...UseInternalthePowerMOSFETToolusesaninternalsymbolforthepowerMOSFETmodel.YoucanplaceaninternalsymbolinaschematicusingonlythePowerMOSFETtool.GeneratethePowerMOSFETToolgeneratesasymbolwiththesamenameasthepowerMOSFETmodelinyourlocaldirectory.GeneratingasymbolallowsyoutoplacethepartinSaberSketchwithoutinvokingthePowerMOSFETtool.Saber®ModelArchitectToolUserGuide145I-2013.12Chapter6:PowerMOSFETToolPowerMOSFETModelCharacterizationcharacterizationgeneratesmodelparametersfromtheinformationsuppliedinthedatasheet.Anycharacterizationinvolvesthefollowingsteps:1.Capturingthecurvesandparametersforeachcharacterizationfromthedatasheet.2.UsingtheScannedDataUtilitytoimportthecurvesthatarenecessaryforperformingthecharacterization.3.ObtainingabestfitfortheimportedcurveeithermanuallyorusingtheOptimizer.Thissectioncoversthefollowingtopics:■UsingDatasheetInformation■PerformingDCCharacterization■PerformingCapacitanceCharacterization■BodyDiodeCharacterization■ThermalCharacterizationUsingDatasheetInformationAdatasheetsummarizestheperformanceandothercharacteristicsofadevicesuchasanelectroniccomponent,asub-systeminsufficientdetail.Adesignengineerusesthedatasheettodesignthecomponent.Thedatasheetforadeviceistypicallyobtainedfromthedevicemanufacturer.Itcontainsinformationaboutdevicessuchaselectricalcharacteristics,graphs,andthermalcharacteristics.ThePowerMOSFETToolallowsyoutoimportdeviceterminalcharacteristicgraphsofthepowerMOSFETavailableinthedatasheetusingtheScannedDataUtilityanduseitforcharacterizingthemodel.PerformingDCCharacterizationDCcharacterizationgeneratesmodelparametersthatareindependentofthemodelparametersgeneratedbycapacitanceandbodydiodecharacterization.146Sabe
本文标题:Saber-Power-MOSFET-Tool
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