《电子技术（双语）》课件-集成运算放大电路及其应用

集成运算放大电路及其应用IntegratedOperationalAmplifierCircuitandItsApplications集成运算放大电路及其应用IntegratedOperationalAmplifierCircuitandItsApplicationsTeacher:JiaLisi授课教师：贾丽斯核心器件：集成运算放大器Corecomponent:Integrated集成运算放大电路及其应用IntegratedOperationalAmplifierCircuitandItsApplications集成运算放大器Integratedoperationalamplifier探索集成运放应用

Exploreintegratedoperationalamplifierapplications思考创新与基础知识联系

Thinkingabouttheconnectionbetweeninnovationandbasicknowledge掌握Master运用Apply激发Stimulate教学目标Teachingobjective半导体二极管结构、基本特性、不同模型特点Semiconductordiodestructure,basiccharacteristics,andfeaturesofdifferentmodels二极管知识进行电路设计与分析Applytheknowledgeofdiodestocircuitdesignandanalysis探索电子技术的热情Passionforexploringelectronictechnology集成运放应用场景ApplicationScenariosofIntegratedOperationalAmplifier万用表

Multimeter信号放大和处理

Signalamplificationandprocessing比例运算电路

Proportionaloperationalcircuit将被测信号放大到可测量范围

Amplifythemeasuredsignaltothemeasurablerange集成运放应用场景ApplicationScenariosofIntegratedOperationalAmplifier音响设备

Additioncircuit加法运算电路

Additioncircuit混合不同声道音频信号Mixingdifferentchannelaudiosignals集成运放应用场景ApplicationScenariosofIntegratedOperationalAmplifier自动控制系统Automaticcontrolsystem处理信号

Signalprocessing精确控制设备

Preciselycontrollingequipment积分/微分运算电路Integratoranddifferentiatorcircuit集成运算放大器基础IntegratedOperationalAmplifierFundamentals基本组成及特点

Basiccomponentsandcharacteristics组成部分

Components常用电路

Commoncircuits核心特点

Corefeatures输入级

Inputstage中间级

intermediatestages输出级

Outputstage差分放大电路Differentialamplifiercircuit互补对称功率放大电路

Complementarysymmetrypoweramplifiercircuit输入电阻高、抑制零点漂移能力强

Highinputresistanceandstrongzerodriftsuppression输出电阻低、带负载能力强Lowoutputresistanceandstrongload-drivingcapability——提供高电压放大倍数

Provideshighvoltageamplificationfactor偏置电路

Biascircuit——提供稳定静态工作点Providesastablequiescentoperatingpoint输入电阻无穷大

Infiniteinputresistance输出电阻为零

Zerooutputresistance共模抑制比无穷大

Infinitecommon-moderejectionratio集成运算放大器基础IntegratedOperationalAmplifierFundamentals理想特性

Idealcharacteristics理想特性Idealcharacteristics开环电压放大倍数无穷大

Infiniteopen-loopvoltagegain带宽无穷大Infinitebandwidth输入电阻无穷大

Infiniteinputresistance输出电阻为零

Zerooutputresistance共模抑制比无穷大

Infinitecommon-moderejectionratio集成运算放大器基础IntegratedOperationalAmplifierFundamentals理想特性

Idealcharacteristics理想特性Idealcharacteristics开环电压放大倍数无穷大

Infiniteopen-loopvoltagegain带宽无穷大Infinitebandwidth简化分析过程Simplifytheanalysisprocess反相比例运算电路Invertingproportionaloperationalamplifiercircuit集成运放常见应用电路CommonApplicationCircuitsofIntegratedOperationalAmplifiers电路类型

Circuittype结构特点Structuralfeatures核心功能

Corefunctions关键特性

Keyfeatures输入信号经电阻接反相端，同相端接地Theinputsignalisconnectedtotheinvertinginputterminalthrougharesistor,andthenon-invertinginputterminalisgrounded输出与输入成比例Outputisproportionaltoinput输入电阻小，输出与输入反相Theinputresistanceissmall,andtheoutputisinvertedcomparedtotheinput公式：

Formula:Rf反馈电阻

FeedbackresistorR1输入电阻

Inputresistor—输出信号与输入信号反相

Theoutputsignalisinvertedcomparedtotheinputsignal同相比例运算电路Non-invertingproportionaloperationalcircuit集成运放常见应用电路CommonApplicationCircuitsofIntegratedOperationalAmplifiers电路类型

Circuittype结构特点Structuralfeatures核心功能

Corefunctions关键特性

Keyfeatures输入信号接同相端，反相端经电阻接地+反馈Theinputsignalisconnectedtothenon-invertinginput,andtheinvertinginputisgroundedviaaresistorforfeedback输出与输入成比例Outputisproportionaltoinput输入电阻大，输出与输入同相Theinputresistanceislarge,andtheoutputisinphasewiththeinput公式：

Formula:Rf反馈电阻

FeedbackresistorR1输入电阻

Inputresistor加法运算电路（反相输入）Additioncircuit(invertinginput)集成运放常见应用电路CommonApplicationCircuitsofIntegratedOperationalAmplifiers电路类型

Circuittype结构特点Structuralfeatures核心功能

Corefunctions多输入信号经电阻接反相端，同相端接地Multipleinputsignalsareconnectedtotheinvertinginputviaaresistor,andthenon-invertinginputisgrounded实现多输入信号代数相加Achievealgebraicadditionofmultipleinputsignals公式：

Formula:集成运放常见应用电路CommonApplicationCircuitsofIntegratedOperationalAmplifiers减法运算电路Subtractioncircuit电路类型

Circuittype结构特点Structuralfeatures核心功能

Corefunctions关键特性

Keyfeatures差分输入，两信号分别接同相端、反相端Differentialinput,withthetwosignalsconnectedtothenon-invertingandinvertinginputsrespectively实现两输入信号差值运算Implementthedifferenceoperationbetweentwoinputsignals有效抑制共模信号Effectivelysuppresscommon-modesignals公式：

Formula:集成运放常见应用电路CommonApplicationCircuitsofIntegratedOperationalAmplifiers积分运算电路Integratorcircuit电路类型

Circuittype结构特点Structuralfeatures核心功能

Corefunctions关键特性

Keyfeatures反相比例电路中，反馈电阻换电容Inaninvertingproportionalcircuit,thefeedbackresistorisreplacedbyacapacitor对输入信号积分Integratingtheinputsignal用于波形变换、延时控制Usedforwaveformtransformationanddelaycontrol公式：

Formula:集成运放常见应用电路CommonApplicationCircuitsofIntegratedOperationalAmplifiers微分运算电路Differentiatorcircuit电路类型

Circuittype结构特点Structuralfeatures核心功能

Corefunctions关键特性

Keyfeatures反相比例电路中，输入电阻换电容Inaninvertingproportionalcircuit,theinputresistorisreplacedbyacapacitor对输入信号微分Differentiatingtheinputsignal检测信号变化率Detectionsignalchangerate公式：

Formula:案例分析CaseAnalysis温度控制系统（信号处理电路）Temperaturecontrolsystem(signalprocessingcircuit)温度传感器

Temperaturesensor电压信号Voltagesignal放大Amplification加法运算Additionoperation案例分析CaseAnalysis温度控制系统（信号处理电路）Temperaturecontrolsystem(signalprocessingcircuit)温度传感器

Temperaturesensor将输出的信号通过同相比例运算电路进行放大

Theoutputsignalisamplifiedbyanon-invertingoperationalamplifiercircuit.例：Ui=0.5V，R1=1kΩ，Rf=9kΩExample:Ui=0.5V,R1=1kΩ,Rf=9kΩ放大后的信号：

Amplifiedsignal:案例分析CaseAnalysis温度控制系统（信号处理电路）Temperaturecontrolsystem(signalprocessingcircuit)温度传感器

Temperaturesensor将放大后的信号与一个基准电压信号通过加法运算电路相加

Theamplifiedsignalisaddedtoareferencevoltagesignalviaanadditioncircuit.例：基准电压Ui2=2V，R1=R2=1kΩ，Rf=1kΩExample:ReferencevoltageUi2=2V,R1=R2=1kΩ,Rf=1kΩ输出信号：

Outputsignal:集成运算放大电路及其应用IntegratedOperationalAmplifierCircuitandItsApplications比例运算电路Proportionaloperationalcircuit加法运算电路

Additioncircuit电路组合创新Circuitcombinationinnovation基于对单电路原理的理解Basedontheunderstandingofsingle-circuitprinciples未来职业岗位的应用

Applicationoffuturejobs电子工程师（设备研发）Electronicsengineer(EquipmentR&D)自动化工程师Automationengineer嵌入式系统工程师Embeddedsystemsengineer仪器仪表设计师Instrumentationdesigner设计集成运放信号处理电路（放大、运算）Designanintegratedoperationalamplifiersignalprocessingcircuit(amplificationandcomputation).PID控制中用积分/微分电路精确控系统InPIDcontrol,integrator/differentiatorcircuitsareused