双语课件：AD转换与DA转换双语课件：ad转换与da转换

A/D转换与D/A转换A/DconversionandD/Aconversion《新能源汽车电工电子技术》ElectricalandElectronicTechnologyofNewEnergyVehiclecontents目录12D/A转换（D/Aconversion）A/D转换（A/Dconversion）A/DconversionandD/Aconversion

对模拟量进行测量、控制或存储时，必须通过特别的接口完成两者之间的转换。A/D转换与D/A转换A/DconversionandD/Aconversion

Whentheanalogismeasured,controlledorstored,theconversionbetweenthetwomustbecompletedthroughaspecialinterface.A/DconversionandD/Aconversion随着数字技术，特别是信息技术的飞速发展与普及案例导入（Caseintroduction）A/D转换与D/A转换提高系统的性能指标信号的处理数字计算机技术A/DconversionandD/AconversionWiththerapiddevelopmentandpopularizationofdigitaltechnology,especiallyinformationtechnologyImprovesystemperformanceindicatorsSignalprocessingDigitalcomputertechnology系统的实际对象往往都是一些模拟量A/D转换与D/A转换温度压力声音A/DconversionandD/Aconversion案例导入（Caseintroduction）Theactualobjectsofthesystemareusuallysomeanalogquantitiestemperaturestresssound系统的实际对象往往都是一些模拟量A/D转换与D/A转换计算机数字仪表模拟信号数字信号A/DconversionandD/Aconversion案例导入（Caseintroduction）TheactualobjectsofthesystemareusuallysomeanalogquantitiescomputerDigitalinstrumentAnalogsignalDigitalsignalA/D转换与D/A转换1.碳膜电位器数字量模拟信号模拟信号数字信号模数和数模转换器A/DconversionandD/Aconversion案例导入（Caseintroduction）DigitalsignalAnalogsignalAnalogsignalDigitalquantityAnalog-to-digitalanddigital-to-analogconvertersAD转换器（ADconverter）一VoltagesignalAD转换器（ADconverter）A/D转换与D/A转换模拟信号AD转换器分析存储控制电压信号油门踏板角度信号电流信号数字信号A/DconversionandD/AconversionAnalogsignalDigitalsignalADconverterVoltagesignalGaspedalAnglesignalCurrentsignalAnalyticalstoragecontrolA/D转换与D/A转换电脑CPU1010D1D0D3D2模拟量输入数字量输出A/D4位ADA/DconversionandD/AconversionAD转换器（ADconverter）AnaloginputDigitaloutput4-bitADA/D转换与D/A转换电脑CPU5V0101D1D0D3D2模拟量输入数字量输入A/D4位AD基准电压4V4V/16=0.25VA/DconversionandD/AconversionAD转换器（ADconverter）AnaloginputDigitaloutput4-bitADReferencevoltage4VcomputerA/D转换与D/A转换电脑CPU5V0101D1D0D3D2模拟量输入数字量输入A/DXvx整除0.25A/DconversionandD/AconversionAD转换器（ADconverter）AnaloginputDigitaloutputcomputerXExactdivision0.25A/D转换与D/A转换电脑CPU5V0101D1D0D3D2模拟量输入数字量输入A/D2.5V2.5V/0.25=10A/DconversionandD/AconversionAD转换器（ADconverter）AnaloginputDigitaloutputcomputerA/D转换与D/A转换电脑CPU5V0101D1D0D3D2模拟量输入数字量输入A/DA/DconversionandD/AconversionAD转换器（ADconverter）AnaloginputDigitaloutputcomputerA/D转换与D/A转换电脑CPU5V1010D1D0D3D2模拟量输入数字量输入A/DA/DconversionandD/AconversionAD转换器（ADconverter）AnaloginputDigitaloutputcomputerA/D转换与D/A转换电脑CPU5V1010D1D0D3D2模拟量输入数字量输入A/DA/DconversionandD/AconversionAD转换器（ADconverter）AnaloginputDigitaloutputcomputerA/D转换与D/A转换电脑CPU5V1010D1D0D3D2模拟量输入数字量输入A/DA/DconversionandD/AconversionAD转换器（ADconverter）AnaloginputDigitaloutputcomputerA/D转换与D/A转换电脑CPU5V1010D1D0D3D2模拟量输入数字量输入A/DA/DconversionandD/AconversionAD转换器（ADconverter）AnaloginputDigitaloutputcomputerA/D转换与D/A转换电脑CPU5V1010D1D0D3D2模拟量输入数字量输入A/DA/DconversionandD/AconversionAD转换器（ADconverter）AnaloginputDigitaloutputcomputerA/D转换与D/A转换电脑CPU5V1010D1D0D3D2模拟量输入数字量输入A/DA/DconversionandD/AconversionAD转换器（ADconverter）AnaloginputDigitaloutputcomputerA/D转换与D/A转换电脑CPU5V0110D1D0D3D2模拟量输入数字量输入A/DA/DconversionandD/AconversionAD转换器（ADconverter）AnaloginputDigitaloutputcomputerA/D转换与D/A转换电脑CPU5V0110D1D0D3D2模拟量输入数字量输入A/DA/DconversionandD/AconversionAD转换器（ADconverter）AnaloginputDigitaloutputcomputerA/D转换与D/A转换AD转换器的性能指标AD转换器转换精度转换速度位数越高，输出的精度就越高常见的AD：8位、12位、16位单次采集需要时间越短转换速度快采集更高频率的电信号A/DconversionandD/AconversionAD转换器（ADconverter）ADconverterPerformancespecificationsoftheADconverterConversionaccuracyConversionspeedThehigherthenumberofbits,thehighertheaccuracyoftheoutputCommonAD:8bits,12bits,16bitsTheshorterthetimerequiredforasinglecollectionFastconversionspeedHigherfrequencyelectricalsignalsarecollectedDA转换器（DAconverter）二A/D转换与D/A转换数字信号模拟信号A/DconversionandD/AconversionDA转换器（DAconverter）AnalogsignalDigitalsignalA/D转换与D/A转换音乐文件的数字信号模拟信号A/DconversionandD/AconversionDA转换器（DAconverter）AnalogsignalDigitalsignalformusicfilesA/D转换与D/A转换电脑CPU1010D1D0D3D2模拟量输出数字量输入D/A4位DA基准电压4V4V/16=0.25VA/DconversionandD/AconversionDA转换器（DAconverter）AnalogoutputDigitalinput4-bitADReferencevoltage4VcomputerA/D转换与D/A转换电脑CPU5V1010D1D0D3D2模拟量输入数字量输入A/D4位DAA/DconversionandD/AconversionDA转换器（DAconverter）AnalogoutputDigitalinput4-bitADcomputerA/D转换与D/A转换电脑CPU5V1010D1D0D3D2模拟量输入数字量输入A/Dyy*0.25A/DconversionandD/AconversionDA转换器（DAconverter）AnalogoutputDigitalinputcomputerA/D转换与D/A转换电脑CPU5V1010D1D0D3D2模拟量输入数字量输入A/D10A/DconversionandD/AconversionDA转换器（DAconverter）AnalogoutputDigitalinputcomputerA/D转换与D/A转换电脑CPU5V1010D1D0D3D2模拟量输出数字量输入D/A2.5VA/DconversionandD/AconversionDA转换器（DAconverter）AnalogoutputDigitalinputcomputerA/D转换与D/A转换电脑CPU5V1010D1D0D3D2模拟量输入数字量输入A/D2.5VA/DconversionandD/AconversionDA转换器（DAconverter）AnalogoutputDigitalinputcomputerA/D转换与D/A转换电脑CPU5V1010D1D0D3D2模拟量输入数字量输入A/D2.5VA/DconversionandD/AconversionDA转换器（DAconverter）AnalogoutputDigitalinputcomputerA/D转换与D/A转换电脑CPU5V1010D1D0D3D2模拟量输入数字量输入A/D2.5VA/DconversionandD/AconversionDA转换器（DAconverter）AnalogoutputDigitalinputcomputerA/D转换与D/A转换电脑CPU1010D1D0D3D2模拟量输入数字量输入A/D2.5VA/DconversionandD/AconversionDA转换器（DAconverter）AnalogoutputDigitalinputcomputerA/D转换与D/A转换电脑