反相比例运算电路制作Productionofinverse.pptx

反相比例运算电路制作Productionofinverseproportionaloperationcircuit主讲人：冯钊

运算放大器的作用是调节和放大模拟信号，它是用途十分广泛的器件，接入适当的反馈网络，可用作精密的交流和直流放大器、有源滤波器、振荡器及电压比较器。Thefunctionofoperationalamplifiersistoregulateandamplifyanalogsignals.Theyarewidelyuseddevices,connectedtoappropriatefeedbacknetworks,andcanbeusedasprecisionACandDCamplifiers,activefilters,oscillators,andvoltagecomparators.Anoperationalamplifierisnotonlycapableofamplifyingweaksignals,butalsoofperforminginphaseandinverseproportionaloperation,additionandsubtraction,onelectricalsignals,henceitiscalledanoperationalamplifier.运算放大器不但可对微弱信号进行放大，还可对电信号做同相反相比例运算加减法运算，所以被称为运算放大器。

反相比例运算电路制作Productionofinverseproportionaloperationcircuit通过反相比例运算电路的制作Theproductionofinverseproportionaloperationcircuits了解集成运算放大器μA741的使用UnderstandingIntegratedOperationalAmplifiersμUseofA741

123实验目的实验原理实验器材ExperimentalPurposeExperimentalPrinciplesExperimentalEquipment45实验步骤分析总结ExperimentalProcedureAnalysisSummary目录CONTENTS

1实验目的ExperimentalPurposeONE

实验目的ExperimentalPurpose1.理解集成运算放大器的工作原理2.掌握集成运算放大器的使用3.能用集成运放构成反相比例运算Understandtheworkingprincipleofintegratedoperationalamplifiers;Mastertheuseofintegratedoperationalamplifiers;Abletouseintegratedoperationalamplifierstoforminverseproportionaloperationalcircuits.

2实验原理ExperimentalPrinciplesTWO

实验原理ExperimentalPrinciples引脚图Pindiagram调零端Zeroadjustmentterminal调零端Zeroadjustmentterminal反相输入端InvertingInput同相输入端non-invertinginput负电源端Negativepowerterminal正电源端Positivepowerterminal输出端Outputterminal空脚Emptyfoot

理想运放工作在线性区的两个特点TwoCharacteristicsofIdealOperationalAmplifiersWorkingintheLinearRegion1）u+≈u-（虚短）Virtualshortness2）i+≈i-≈0（虚断）virtualopen

实验原理ExperimentalPrinciples

3实验器材ExperimentalEquipmentTHREE

实验器材ExperimentalEquipment示波器oscilloscope天煌电子实验台TianhuangElectronicExperimentalPlatform万用表multimeterUA741电阻器resistor导线wire

4实验步骤ExperimentalStepsFOUR

实验步骤Ex