Simetrix 仿真入门教程

21/01/20152AgendaContents►WhatisSIMetrix?►Wheretogetthesoftware?►Howtostart?►Selectcomponentsfromlibrary.►Makeasimplecircuit.►TransientAnalysis.►ACAnalysis►DCAnalysis►MonteCarloAnalysis.►ProbeandPlots.►ShortcutKeys.21/01/20153WhatisSIMetrix?*SIMetrixisageneralanalogandmixed-signalsimulator.ItincludesanenhancedSPICEsimulator,schematiceditorandwaveformviewerinaunifiedenvironment.Itiseasytouse,offersgoodaccuracyandperformance,andrapidconvergenceforabroadrangeofanalogandmixed-signaldesignapplications.*Keyfeatures
Analogsimulation
Gate-leveldigitalsimulation
S-ParameterAClookuptable
Extendedsweepmodes
FastMonteCarloanalysis
Multi-stepanalysis21/01/20154WhatisSIMetrix?*Connectto►Openthelinkforfreedownload:-Simetrix/Simplisintroisaversionforfree.-TosimulateSIMetrixcircuitsupto140nodes-Foranypurpose,commercialornon-commercial-Foraslongasyoulike-therearenotime-limits►Installitafterdownloadtheprogramfromwebsite.21/01/20157Howtostart?►Doubleclicktheiconondesktop:►Youwillfindfollowinginterface:MenubarNewschematicOpenschematicNewsymbolPrintOptionPromptareaforsimulatinginformation21/01/20158Howtostart?21/01/20159Howtostart?►Sometipsaboutthisfirstlevelinterface:\►ClickOptionOption►Settingyourpreferredparameters.UndolevelMostrecentfilesAutosaveinterval21/01/201510Howtostart?►Cleantemporarydatafiles.Option►Simulatorwillgenerateslotsoftemporarydocuments.Itwilloccupymostofharddiskresource.Definethefolderandcleanitmanuallyordefineautomaticclean.Allsimulatingresultslostsafterprogramclosedifautomaticcleanisselected.21/01/201511Selectcomponentsfromlibrary!21/01/201512Selectcomponentsfromthelibrary.Createnew►Createnewschematic►GetnewGUI.Findmenu“Place”:Place21/01/201513Selectcomponentsfromthelibrary.►Find“FromModelLibrary”andclickit►Systemwillpopupaninterfacetoselectparts:CategoryDrawingPartslist21/01/201514Selectcomponentsfromthelibrary.►Placegeneralpartsfromquicktoolsbar.OpampResistorCapacitorInductorGroundVoltageSourceCurrentSourceDiodeZenerDiodePJEFTNJFETPMOSNMOSPNPTransistorNPNTransistorSelectcomponentsfromthelibrary.►Placearesistor.►Doubleclickresistortodefinethevalue.DoubleClickSelectcomponentsfromthelibrary.►Placeacapacitor/inductor.►Doubleclickcapacitor/inductortodefinethevalueandinitialconditions.DoubleClickCapacitorInductorSelectcomponentsfromthelibrary.►Placeavoltage/currentsource.►Doubleclickcapacitor/inductortodefinethevalue(DC).DoubleClickSelectcomponentsfromthelibrary.►Moredetailofvoltage/Currentsource.-Pulse:PeriodRiseFallDuty=(Width+Rise@90%+Fall)@10%/PeriodWidth90%Max10%MaxInitialDelayPulse(max)AmplitudeOffset:=Amplitude/2+InitialSelectcomponentsfromthelibrary.►Moredetailofvoltage/Currentsource.-SinePeriodDelay(Peak)(Offset)Selectcomponentsfromthelibrary.►Placeadiode/transistor/mosfet/JFET：►Doubleclickdiode/transistor/mosfet/JFETtoselectproperparts:DoubleClickNote:IdeadiodewouldbeagoodselectionformostofcasesSelectcomponentsfromthelibrary.►PlaceanideaTransformer/inductor：WindingquantityofprimarysideWindingquantityofsecondarysideWindingforturnsratiodefinitionTurnsratio:N_winding/N_primaryDefineinductanceofprimarywindingCouplingfactorsofeachpairofwindingsSelectcomponentsfromthelibrary.►PlaceanideaOptocouplerDoubleClickRoll-offFrequency:aconditionwherethelowernotes(orlowerfrequency)areproducedatfullamplitude,butasthenotesgohigher(higherfrequency)theyarereducedinamplitude.Acommonspecificationforanamplifierbandwidthreferstothe3dBroll-off,orpointwherethegainoftheamplifierisreducedby3dBbecauseofbandwidthlimitations.At3dBroll-off,thepoweroutputwouldbereducedbyhalf.Selectcomponentsfromthelibrary.►PlaceadigitalpartsU4HC08DU2HC02DU1HC04DHC74DU3DQQNRSTSETInverterOrDFlip-flopAndSelectcomponentsfromthelibrary.►Somespecialdevice:-Voltage/currentcontrolvoltage/currentsource–couldbeusedasopenloopvoltageorcurrentamplifierE11H11000F11G11C_CC_VV_CV_VDoubleclickpartstodefineopenloopgain+-E11Gaindif_outE12kE22k+-+-DifferentconnectmeansdifferentinputpolaritySelectcomponentsfromthelibrary.►Somespecialdevice:-DCtransformerNoinductance!Nomagnetizingcurrent!P1S1TX1Selectcomponentsfromthelibrary.►Somespecialdevice:-Switch/SwitchwithHysteresisDoubleClickSwitchSwitchwithHysteresisSwitchwithhysteresisislikeanideaMOSFETSelectcomponentsfromthelibrary.►Somespecialdevice:-ParameterisedDiodeCustomizeDiodeSelectcomponentsfromthelibrary.►Somespecialdevice:-ParameterisedOpamp/ComparatorDoubleClickCustomizecomparatorCustomizeOpampSelectcomponentsfromthelibrary.►Somespecialdevice:-Non-linearTransferFunctionInputyourexpressionhereMoreinnextpageSelectcomponentsfromthelibrary.►Somespecialdevice:-Non-linearTransferFunctionARB1OUTN2N1I(V1)I(V2)ARB1OUTN2N1Input:TwovoltagesourcesInput:Twovoltagesources+twocurrentsourcesARB1OUTN2N1ARB1N2N1ARB1OUTNOUTPN2N1ARB1N2N1MoreinnextpageSelectcomponentsfromthelibrary.►Somespecialdevice:-Non-linearTransferFunctionV(n1)*V(n2)+abs(V(n1))=5V*-2V+|5V|=-5V21/01/2015Makeasimplecir