集成運(yùn)算放大電路及其應(yīng)用IntegratedOperationalAmplifierCircuitandItsApplications集成運(yùn)算放大電路及其應(yīng)用IntegratedOperationalAmplifierCircuitandItsApplicationsTeacher:JiaLisi授課教師：賈麗斯核心器件：集成運(yùn)算放大器Corecomponent:Integrated集成運(yùn)算放大電路及其應(yīng)用IntegratedOperationalAmplifierCircuitandItsApplications集成運(yùn)算放大器Integratedoperationalamplifier探索集成運(yùn)放應(yīng)用

Exploreintegratedoperationalamplifierapplications思考創(chuàng)新與基礎(chǔ)知識(shí)聯(lián)系

Thinkingabouttheconnectionbetweeninnovationandbasicknowledge掌握Master運(yùn)用Apply激發(fā)Stimulate教學(xué)目標(biāo)Teachingobjective半導(dǎo)體二極管結(jié)構(gòu)、基本特性、不同模型特點(diǎn)Semiconductordiodestructure,basiccharacteristics,andfeaturesofdifferentmodels二極管知識(shí)進(jìn)行電路設(shè)計(jì)與分析Applytheknowledgeofdiodestocircuitdesignandanalysis探索電子技術(shù)的熱情Passionforexploringelectronictechnology集成運(yùn)放應(yīng)用場(chǎng)景ApplicationScenariosofIntegratedOperationalAmplifier萬(wàn)用表

Multimeter信號(hào)放大和處理

Signalamplificationandprocessing比例運(yùn)算電路

Proportionaloperationalcircuit將被測(cè)信號(hào)放大到可測(cè)量范圍

Amplifythemeasuredsignaltothemeasurablerange集成運(yùn)放應(yīng)用場(chǎng)景ApplicationScenariosofIntegratedOperationalAmplifier音響設(shè)備

Additioncircuit加法運(yùn)算電路

Additioncircuit混合不同聲道音頻信號(hào)Mixingdifferentchannelaudiosignals集成運(yùn)放應(yīng)用場(chǎng)景ApplicationScenariosofIntegratedOperationalAmplifier自動(dòng)控制系統(tǒng)Automaticcontrolsystem處理信號(hào)

Signalprocessing精確控制設(shè)備

Preciselycontrollingequipment積分/微分運(yùn)算電路Integratoranddifferentiatorcircuit集成運(yùn)算放大器基礎(chǔ)IntegratedOperationalAmplifierFundamentals基本組成及特點(diǎn)

Basiccomponentsandcharacteristics組成部分

Components常用電路

Commoncircuits核心特點(diǎn)

Corefeatures輸入級(jí)

Inputstage中間級(jí)

intermediatestages輸出級(jí)

Outputstage差分放大電路Differentialamplifiercircuit互補(bǔ)對(duì)稱功率放大電路

Complementarysymmetrypoweramplifiercircuit輸入電阻高、抑制零點(diǎn)漂移能力強(qiáng)

Highinputresistanceandstrongzerodriftsuppression輸出電阻低、帶負(fù)載能力強(qiáng)Lowoutputresistanceandstrongload-drivingcapability——提供高電壓放大倍數(shù)

Provideshighvoltageamplificationfactor偏置電路

Biascircuit——提供穩(wěn)定靜態(tài)工作點(diǎn)Providesastablequiescentoperatingpoint輸入電阻無(wú)窮大

Infiniteinputresistance輸出電阻為零

Zerooutputresistance共模抑制比無(wú)窮大

Infinitecommon-moderejectionratio集成運(yùn)算放大器基礎(chǔ)IntegratedOperationalAmplifierFundamentals理想特性

Idealcharacteristics理想特性Idealcharacteristics開(kāi)環(huán)電壓放大倍數(shù)無(wú)窮大

Infiniteopen-loopvoltagegain帶寬無(wú)窮大Infinitebandwidth輸入電阻無(wú)窮大

Infiniteinputresistance輸出電阻為零

Zerooutputresistance共模抑制比無(wú)窮大

Infinitecommon-moderejectionratio集成運(yùn)算放大器基礎(chǔ)IntegratedOperationalAmplifierFundamentals理想特性

Idealcharacteristics理想特性Idealcharacteristics開(kāi)環(huán)電壓放大倍數(shù)無(wú)窮大

Infiniteopen-loopvoltagegain帶寬無(wú)窮大Infinitebandwidth簡(jiǎn)化分析過(guò)程Simplifytheanalysisprocess反相比例運(yùn)算電路Invertingproportionaloperationalamplifiercircuit集成運(yùn)放常見(jiàn)應(yīng)用電路CommonApplicationCircuitsofIntegratedOperationalAmplifiers電路類型

Circuittype結(jié)構(gòu)特點(diǎn)Structuralfeatures核心功能

Corefunctions關(guān)鍵特性

Keyfeatures輸入信號(hào)經(jīng)電阻接反相端，同相端接地Theinputsignalisconnectedtotheinvertinginputterminalthrougharesistor,andthenon-invertinginputterminalisgrounded輸出與輸入成比例Outputisproportionaltoinput輸入電阻小，輸出與輸入反相Theinputresistanceissmall,andtheoutputisinvertedcomparedtotheinput公式：

Formula:Rf反饋電阻

FeedbackresistorR1輸入電阻

Inputresistor—輸出信號(hào)與輸入信號(hào)反相

Theoutputsignalisinvertedcomparedtotheinputsignal同相比例運(yùn)算電路Non-invertingproportionaloperationalcircuit集成運(yùn)放常見(jiàn)應(yīng)用電路CommonApplicationCircuitsofIntegratedOperationalAmplifiers電路類型

Circuittype結(jié)構(gòu)特點(diǎn)Structuralfeatures核心功能

Corefunctions關(guān)鍵特性

Keyfeatures輸入信號(hào)接同相端，反相端經(jīng)電阻接地+反饋Theinputsignalisconnectedtothenon-invertinginput,andtheinvertinginputisgroundedviaaresistorforfeedback輸出與輸入成比例Outputisproportionaltoinput輸入電阻大，輸出與輸入同相Theinputresistanceislarge,andtheoutputisinphasewiththeinput公式：

Formula:Rf反饋電阻

FeedbackresistorR1輸入電阻

Inputresistor加法運(yùn)算電路（反相輸入）Additioncircuit(invertinginput)集成運(yùn)放常見(jiàn)應(yīng)用電路CommonApplicationCircuitsofIntegratedOperationalAmplifiers電路類型

Circuittype結(jié)構(gòu)特點(diǎn)Structuralfeatures核心功能

Corefunctions多輸入信號(hào)經(jīng)電阻接反相端，同相端接地Multipleinputsignalsareconnectedtotheinvertinginputviaaresistor,andthenon-invertinginputisgrounded實(shí)現(xiàn)多輸入信號(hào)代數(shù)相加Achievealgebraicadditionofmultipleinputsignals公式：

Formula:集成運(yùn)放常見(jiàn)應(yīng)用電路CommonApplicationCircuitsofIntegratedOperationalAmplifiers減法運(yùn)算電路Subtractioncircuit電路類型

Circuittype結(jié)構(gòu)特點(diǎn)Structuralfeatures核心功能

Corefunctions關(guān)鍵特性

Keyfeatures差分輸入，兩信號(hào)分別接同相端、反相端Differentialinput,withthetwosignalsconnectedtothenon-invertingandinvertinginputsrespectively實(shí)現(xiàn)兩輸入信號(hào)差值運(yùn)算Implementthedifferenceoperationbetweentwoinputsignals有效抑制共模信號(hào)Effectivelysuppresscommon-modesignals公式：

Formula:集成運(yùn)放常見(jiàn)應(yīng)用電路CommonApplicationCircuitsofIntegratedOperationalAmplifiers積分運(yùn)算電路Integratorcircuit電路類型

Circuittype結(jié)構(gòu)特點(diǎn)Structuralfeatures核心功能

Corefunctions關(guān)鍵特性

Keyfeatures反相比例電路中，反饋電阻換電容Inaninvertingproportionalcircuit,thefeedbackresistorisreplacedbyacapacitor對(duì)輸入信號(hào)積分Integratingtheinputsignal用于波形變換、延時(shí)控制Usedforwaveformtransformationanddelaycontrol公式：

Formula:集成運(yùn)放常見(jiàn)應(yīng)用電路CommonApplicationCircuitsofIntegratedOperationalAmplifiers微分運(yùn)算電路Differentiatorcircuit電路類型

Circuittype結(jié)構(gòu)特點(diǎn)Structuralfeatures核心功能

Corefunctions關(guān)鍵特性

Keyfeatures反相比例電路中，輸入電阻換電容Inaninvertingproportionalcircuit,theinputresistorisreplacedbyacapacitor對(duì)輸入信號(hào)微分Differentiatingtheinputsignal檢測(cè)信號(hào)變化率Detectionsignalchangerate公式：

Formula:案例分析CaseAnalysis溫度控制系統(tǒng)（信號(hào)處理電路）Temperaturecontrolsystem(signalprocessingcircuit)溫度傳感器

Temperaturesensor電壓信號(hào)Voltagesignal放大Amplification加法運(yùn)算Additionoperation案例分析CaseAnalysis溫度控制系統(tǒng)（信號(hào)處理電路）Temperaturecontrolsystem(signalprocessingcircuit)溫度傳感器

Temperaturesensor將輸出的信號(hào)通過(guò)同相比例運(yùn)算電路進(jìn)行放大

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

Amplifiedsignal:案例分析CaseAnalysis溫度控制系統(tǒng)（信號(hào)處理電路）Temperaturecontrolsystem(signalprocessingcircuit)溫度傳感器

Temperaturesensor將放大后的信號(hào)與一個(gè)基準(zhǔn)電壓信號(hào)通過(guò)加法運(yùn)算電路相加

Theamplifiedsignalisaddedtoareferencevoltagesignalviaanadditioncircuit.例：基準(zhǔn)電壓Ui2=2V，R1=R2=1kΩ，Rf=1kΩExample:ReferencevoltageUi2=2V,R1=R2=1kΩ,Rf=1kΩ輸出信號(hào)：

Outputsignal:集成運(yùn)算放大電路及其應(yīng)用IntegratedOperationalAmplifierCircuitandItsApplications比例運(yùn)算電路Proportionaloperationalcircuit加法運(yùn)算電路

Additioncircuit電路組合創(chuàng)新Circuitcombinationinnovation基于對(duì)單電路原理的理解Basedontheunderstandingofsingle-circuitprinciples未來(lái)職業(yè)崗位的應(yīng)用

Applicationoffuturejobs電子工程師（設(shè)備研發(fā)）Electronicsengineer(EquipmentR&D)自動(dòng)化工程師Automationengineer嵌入式系統(tǒng)工程師Embeddedsystemsengineer儀器儀表設(shè)計(jì)師Instrumentationdesigner設(shè)計(jì)集成運(yùn)放信號(hào)處理電路（放大、運(yùn)算）Designanintegratedoperationalamplifiersignalprocessingcircuit(amplificationandcomputation).PID控制中用積分/微分電路精確控系統(tǒng)InPIDcontrol,integrator/differentiatorcircuitsareused