【導(dǎo)讀】PWM脈沖信號實現(xiàn)對直流電機(jī)的供電電源進(jìn)行控制從而達(dá)到調(diào)速目的。同時利用光電編碼。差的調(diào)速系統(tǒng)設(shè)計。64LCD顯示器顯示電機(jī)當(dāng)前的參數(shù)、正反轉(zhuǎn)狀。態(tài)、轉(zhuǎn)速以及運行時間；通過4?4鍵盤實現(xiàn)：數(shù)字PID參數(shù)設(shè)置、速度、電機(jī)正反轉(zhuǎn)、加。速、減速、啟動、停止。

　　

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