【正文】 chip control of DC motor, the motor starting, speed, speed up and stop function. KEY WORDS: Infrared remote control, dc motor, single chip microputer, speed control, brakeis 鄭州 /****/大學 畢業(yè)設計 .3. 目 錄 前 言 ................................................................................................................................. 4 第 1 章 紅外線通信 ..................................................................................................... 5 紅外通信原理 .................................................................................................... 5 紅外接收電路 ............................................................................................. 5 紅外發(fā)光管 ................................................................................................ 6 紅外接收 器件 ............................................................................................ 6 紅外遙控系統(tǒng)結構 .................................................................................... 6 硬件電路設計 ............................................................................................ 7 紅外解碼過程 ............................................................................................ 7 第 2 章 直流電動機原理 ............................................................................................. 8 直流電動機 ....................................................................................................... 8 直流電動機結構 ................................................................................................ 8 定子的結構和原理 ..................................................................................... 8 轉子的結構和原理 ...................................................................................... 9 其它部分的結構和原理 .............................................................................. 9 直流電動機的控制原理 ................................................................................... 10 第 3 章 單片機 STC89C51.........................................................................................11 單片機概況 .......................................................................................................11 單片機內部結構和原理 ...................................................................................11 復位電路及時鐘電路 ...................................................................................... 12 單片機最小系統(tǒng) .............................................................................................. 13 第 4 章 PWM 調制和電機的使用 ............................................................................. 14 PWM 調制 ........................................................................................................ 14 直流電機的使用 .............................................................................................. 14 電機的啟動 ............................................................................................... 14 電機的調速 ............................................................................................... 14 電機的反轉 ............................................................................................... 15 電機的制動 ................................................................................................ 15 電機驅動芯片 L293d ...................................................................................... 15 第 5 章 系統(tǒng)硬件設計 ............................................................................................. 17 系統(tǒng)硬件電路圖 .......................................................................................... 17 系統(tǒng)硬件 PCB 圖 ........................................................................................ 18 實物圖 .......................................................................................................... 19 結論 ........................................................................................................................... 20 致謝 ........................................................................................................................... 21 參考文獻 ................................................................................................................... 22 附錄 .............................................................