西工大模电实验报告(英文版)

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1、物理实验教学中心NorthwesternPolytechnicalUniversityCenterforTeachingExperimentsinPhysics《AnalogElectronicsExperiment》ReportNameGroupIDScoreClassStudentIDExperimentDateExperimentOperationalAmplifiersI.ObjectivesAnoperationalamplifier,orop-amp,isaveryhighgaindifferentialamplifierwithhigh

2、impedanceandlowoutputimpedance.Typicalusesoftheoperationalamplifieraretoprovidevoltageamplitudechanges.Oscillators,filtercircuits,andmanytypesofinstrumentationcircuits.Anop-ampcontainsanumberofdifferentialamplifierstagestoachieveveryhighvoltagegain.II.Apparatuses（Name、TypeandPa

3、rameters）TheOscilloscope6物理实验教学中心NorthwesternPolytechnicalUniversityCenterforTeachingExperimentsinPhysicsCurrentmeterVoltagemeterCapacitor10nfInductorAmplifier741FunctiongeneratorIII.ExperimentalPrinciple(Describepithilyandusingfiguresifnecessary)Inourexperiment,wewillusetheope

4、rationalamplifierA741Itisahighperformanceoperationalwithhighopen-loopgain,internalcompensation,highcommonmoderangeandexceptionaltemperaturestability.TheA741isshortcircuitprotectedandallowsfornullingofoffsetvoltage.IV.ExperimentContentsandMethods1.Voltagesumming(1)Buildthecircui

5、tshownbelowandmaketheconnectionsasindicatedontheschematic;6物理实验教学中心NorthwesternPolytechnicalUniversityCenterforTeachingExperimentsinPhysics(1)setthefunctiongeneratortoproduceanunbiased1-kzsinusoidwitha100-mvpeak-to-peakvoltage,andconnectittothecircuitasinputsignalVi1andVi2.Obse

6、rveandrecordtheoutputvoltagewithoscilloscope.(2)Connect0.5VdirectcurrentvoltagetoVi1,Vi2notchange.Observeandrecordtheoutputvoltagewithoscilloscope.1.Voltagesubtraction(1)buildthecircuitasfollow(2)setthefunctiongeneratortoanunbiased1-kzsinusoidwitha200-mvpeaktopeakamplitudeandco

7、nnectittothecircuitas6物理实验教学中心NorthwesternPolytechnicalUniversityCenterforTeachingExperimentsinPhysicsinputsignalVi1.1.Integrator(1)buildthecircuitasfollow(2)setthefunctiongeneratortoproduceanunbiased1-kzsquarewavewith100mvpeak-to-peakvoltage.Observeandrecordtheinputvoltageando

8、utputwaveformwithoscilloscope.(3)Changethevalueofresis