新能源汽車電工電子技術(shù) 課件 48AD轉(zhuǎn)換與DA轉(zhuǎn)換

A/D轉(zhuǎn)換與D/A轉(zhuǎn)換《新能源汽車電工電子技術(shù)》contents目錄12D/A轉(zhuǎn)換A/D轉(zhuǎn)換

對(duì)模擬量進(jìn)行測(cè)量、控制或存儲(chǔ)時(shí)，必須通過(guò)特別的接口完成兩者之間的轉(zhuǎn)換。A/D轉(zhuǎn)換與D/A轉(zhuǎn)換隨著數(shù)字技術(shù)，特別是信息技術(shù)的飛速發(fā)展與普及案例導(dǎo)入A/D轉(zhuǎn)換與D/A轉(zhuǎn)換提高系統(tǒng)的性能指標(biāo)信號(hào)的處理數(shù)字計(jì)算機(jī)技術(shù)系統(tǒng)的實(shí)際對(duì)象往往都是一些模擬量案例導(dǎo)入A/D轉(zhuǎn)換與D/A轉(zhuǎn)換溫度壓力聲音系統(tǒng)的實(shí)際對(duì)象往往都是一些模擬量案例導(dǎo)入A/D轉(zhuǎn)換與D/A轉(zhuǎn)換計(jì)算機(jī)數(shù)字儀表模擬信號(hào)數(shù)字信號(hào)案例導(dǎo)入A/D轉(zhuǎn)換與D/A轉(zhuǎn)換1.碳膜電位器數(shù)字量模擬信號(hào)模擬信號(hào)數(shù)字信號(hào)模數(shù)和數(shù)模轉(zhuǎn)換器AD轉(zhuǎn)換器一AD轉(zhuǎn)換器A/D轉(zhuǎn)換與D/A轉(zhuǎn)換模擬信號(hào)AD轉(zhuǎn)換器分析存儲(chǔ)控制電壓信號(hào)油門踏板角度信號(hào)電流信號(hào)數(shù)字信號(hào)AD轉(zhuǎn)換器A/D轉(zhuǎn)換與D/A轉(zhuǎn)換電腦CPU1010D1D0D3D2模擬量輸入數(shù)字量輸出A/D4位ADAD轉(zhuǎn)換器A/D轉(zhuǎn)換與D/A轉(zhuǎn)換電腦CPU5V0101D1D0D3D2模擬量輸入數(shù)字量輸入A/D4位AD基準(zhǔn)電壓4V4V/16=0.25VAD轉(zhuǎn)換器A/D轉(zhuǎn)換與D/A轉(zhuǎn)換電腦CPU5V0101D1D0D3D2模擬量輸入數(shù)字量輸入A/DXvx整除0.25AD轉(zhuǎn)換器A/D轉(zhuǎn)換與D/A轉(zhuǎn)換電腦CPU5V0101D1D0D3D2模擬量輸入數(shù)字量輸入A/D2.5V2.5V/0.25=10AD轉(zhuǎn)換器A/D轉(zhuǎn)換與D/A轉(zhuǎn)換電腦CPU5V0101D1D0D3D2模擬量輸入數(shù)字量輸入A/DAD轉(zhuǎn)換器A/D轉(zhuǎn)換與D/A轉(zhuǎn)換電腦CPU5V1010D1D0D3D2模擬量輸入數(shù)字量輸入A/DAD轉(zhuǎn)換器A/D轉(zhuǎn)換與D/A轉(zhuǎn)換電腦CPU5V1010D1D0D3D2模擬量輸入數(shù)字量輸入A/DAD轉(zhuǎn)換器A/D轉(zhuǎn)換與D/A轉(zhuǎn)換電腦CPU5V1010D1D0D3D2模擬量輸入數(shù)字量輸入A/DAD轉(zhuǎn)換器A/D轉(zhuǎn)換與D/A轉(zhuǎn)換電腦CPU5V1010D1D0D3D2模擬量輸入數(shù)字量輸入A/DAD轉(zhuǎn)換器A/D轉(zhuǎn)換與D/A轉(zhuǎn)換電腦CPU5V1010D1D0D3D2模擬量輸入數(shù)字量輸入A/DAD轉(zhuǎn)換器A/D轉(zhuǎn)換與D/A轉(zhuǎn)換電腦CPU5V1010D1D0D3D2模擬量輸入數(shù)字量輸入A/DAD轉(zhuǎn)換器A/D轉(zhuǎn)換與D/A轉(zhuǎn)換電腦CPU5V0110D1D0D3D2模擬量輸入數(shù)字量輸入A/DAD轉(zhuǎn)換器A/D轉(zhuǎn)換與D/A轉(zhuǎn)換電腦CPU5V0110D1D0D3D2模擬量輸入數(shù)字量輸入A/DAD轉(zhuǎn)換器A/D轉(zhuǎn)換與D/A轉(zhuǎn)換AD轉(zhuǎn)換器的性能指標(biāo)AD轉(zhuǎn)換器轉(zhuǎn)換精度轉(zhuǎn)換速度位數(shù)越高，輸出的精度就越高常見(jiàn)的AD：8位、12位、16位單次采集需要時(shí)間越短轉(zhuǎn)換速度快采集更高頻率的電信號(hào)DA轉(zhuǎn)換器二DA轉(zhuǎn)換器A/D轉(zhuǎn)換與D/A轉(zhuǎn)換數(shù)字信號(hào)模擬信號(hào)DA轉(zhuǎn)換器A/D轉(zhuǎn)換與D/A轉(zhuǎn)換音樂(lè)文件的數(shù)字信號(hào)模擬信號(hào)DA轉(zhuǎn)換器A/D轉(zhuǎn)換與D/A轉(zhuǎn)換電腦CPU1010D1D0D3D2模擬量輸出數(shù)字量輸入D/A4位DA基準(zhǔn)電壓4V4V/16=0.25VDA轉(zhuǎn)換器A/D轉(zhuǎn)換與D/A轉(zhuǎn)換電腦CPU5V1010D1D0D3D2模擬量輸入數(shù)字量輸入A/D4位DADA轉(zhuǎn)換器A/D轉(zhuǎn)換與D/A轉(zhuǎn)換電腦CPU5V1010D1D0D3D2模擬量輸入數(shù)字量輸入A/Dyy*0.25DA轉(zhuǎn)換器A/D轉(zhuǎn)換與D/A轉(zhuǎn)換電腦CPU5V1010D1D0D3D2模擬量輸入數(shù)字量輸入A/D10DA轉(zhuǎn)換器A/D轉(zhuǎn)換與D/A轉(zhuǎn)換電腦CPU5V1010D1D0D3D2模擬量輸出數(shù)字量輸入D/A2.5VDA轉(zhuǎn)換器A/D轉(zhuǎn)換與D/A轉(zhuǎn)換電腦CPU5V1010D1D0D3D2模擬量輸入數(shù)字量輸入A/D2.5VDA轉(zhuǎn)換器A/D轉(zhuǎn)換與D/A轉(zhuǎn)換電腦CPU5V1010D1D0D3D2模擬量輸入數(shù)字量輸入A/D2.5VDA轉(zhuǎn)換器A/D轉(zhuǎn)換與D/A轉(zhuǎn)換電腦CPU5V1010D1D0D3D2模擬量輸入數(shù)字量輸入A/D2.5VDA轉(zhuǎn)換器A/D轉(zhuǎn)換與D/A轉(zhuǎn)換電腦CPU1010D1D0D3D2模擬量輸入數(shù)字量輸入A/D2.5VDA轉(zhuǎn)換器A/D轉(zhuǎn)換與D/A轉(zhuǎn)換電腦CPU5V1010D1D0D3D2模擬量輸入數(shù)字量輸入A/D2.