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心電信號(hào)采集與心電波形實(shí)時(shí)顯示模塊的設(shè)計(jì)-全文預(yù)覽

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【正文】 ............................................................ 3 一級(jí)放大 .............................................................................................. 3 光電隔離 .............................................................................................. 3 DCDC 轉(zhuǎn)換 ........................................................................................... 3 右腿驅(qū)動(dòng)電路 ....................................................................................... 4 50Hz 陷波器 ......................................................................................... 4 低通濾波器 ........................................................................................ 4 二級(jí)放大 ............................................................................................ 4 A/D 轉(zhuǎn)換 ............................................................................................. 4 閾值報(bào)警 ............................................................................................ 4 LCD 顯示 ............................................................................................. 4 按鍵控制 ............................................................................................. 5 ............................................................................................................ 6 模擬電路設(shè)計(jì) .................................................................................................. 6 前置放大器設(shè)計(jì) ................................................................................... 6 高通和低通濾波器、 50Hz 陷波器設(shè)計(jì) .............................................. 7 一級(jí)放大和二級(jí)放大設(shè)計(jì) ................................................................. 12 光電隔離設(shè)計(jì) ..................................................................................... 14 DCDC 轉(zhuǎn)換設(shè)計(jì) ................................................................................. 15 數(shù)字電路設(shè)計(jì) ................................................................................................ 16 A/D 轉(zhuǎn)換和閾值報(bào)警 ......................................................................... 16 LCD 模塊顯示設(shè)計(jì) ............................................................................. 17 數(shù)字電源設(shè)計(jì) ..................................................................................... 18 按鍵電路 ..........................................................................................
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