基于Multisim10的MC1496调幅电路仿真及分析

Multisim10MC149612,2(1.3630002.361005)Multisim10Multisim10MC1496。。MC1496Multisim10TN702A１６７3－4629(２００8)06－0046－04２００8—05—221974—。2007JOURNALOFLONGYANUNIVERSITY２００812266December２００8Ｖｏｌ．２6Ｎｏ．61、、、、、[1]。、。Multisim10MC1496。2MultisimMC1496。XY。MC1496。Multisim10MC1496[2]。MC149612。Q1、Q2、Q3、Q4Q5、Q6Q1~Q4。Q7、Q8。IO8IO1014IO6IO12。IO2IO3Q5Q6。IO14IO5R5。1MC14962MC1496463MC14963.1MC1496MC1496,2。MC14963。3MC1496Q1Q4IO8、IO10。Q5、Q6IO1、IO4。IO2、IO3。。R6,R4Q1~Q4RPR12R13R9R10Q5、Q6RPRPR8,R14IO2、IO3R7U。①XFG1υCt=VcmcosωCtC1C2R5IO8IO10。②XFG2υΩt=VΩcosΩtC4R12,R9IO1IO4。③C3。3.214。4V3=V2V10=V9V14=V15V(11)=V12V15-V2≈2.6V2VMC1496Q1Q2Q3Q4V2-V9≈6V2.7VQ5Q6V11-V12≈6V2VQ7Q8。425MHz40mV。1KHz0mV。RP0mV。5。180。535MHz40mV。0mVRP。1KHz6。647。Ma=Vmmax-VmminVmmax+Vmmin×100%。1≥Ma≥0Ma≥1Ωt=πV0t。7。701。4MC149622.2MHz60mV1KHz。1。。1RPRP50%。MC14961-109.1mV4-102.9mV。。70mV8。20RP。。15mV9。53mV10m1。m111。951、1MC14961234568101214-72.6mv-0.78v-0.78v-71.7mv-7v8.7v5.92v5.92v8.6v-8.1v810m148DesignofAudioPowerAmplifierBasedonLM4766SHIYang-zhi,LIANGWei-zhenAbstract:Thispaperdiscussestheprincipleanddesignoftheaudiopoweramplifierandthechoiceofthemaincomponentsandparameters.Theentirecircuitismainlycomprisedofregulatedpowersupply,preamplifierandpoweramplifier,amongwhichLM4766isastereoaudioamplifierusingdualpowersupplyapplicationcircuit.Thestructureofthiscircuitissimple.Theexperimentalresultsshowthatthepoweramplifierperformswellinsuchaspectsasbandwidth,distortionfactor,efficiency,etc.KeywordspoweramplifierLM4766preamplifierNE5534efficiencySimulationandAnalysisofMC1496AmplitudeModulationCircuitBasedonMultisim10ZHOUJin-rong,LINNanAbstract:ThispaperintroducesthewayofformingICmoduleusingMultisim10simulationplatform.ThesimulationandanalysisofMC1496amplitudemodulationcircuitbasedonMultisim10arecarriedout.Practicalcircuitismadeandtestedbasedonsimulationcircuit.Thesimulationresultsandthedatafromrealcircuitarethenanalyzed.KeywordsamplitudemodulationMC1496Multisim10。,。11m12。180。3①14。14。。。RPR12R13。②。。1451。R9R108100[3]。③。Multisim10MC1496。[1]．[M]．2006．[2]．MULTISIM8.0MC1496[J]．200621157-160．[3]．[J]．200616335-38．〔〕．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．4549