【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(xué) 畢業(yè)設(shè)計(jì) .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(jié)構(gòu) .................................................................................... 6 硬件電路設(shè)計(jì) ............................................................................................ 7 紅外解碼過程 ............................................................................................ 7 第 2 章 直流電動機(jī)原理 ............................................................................................. 8 直流電動機(jī) ....................................................................................................... 8 直流電動機(jī)結(jié)構(gòu) ................................................................................................ 8 定子的結(jié)構(gòu)和原理 ..................................................................................... 8 轉(zhuǎn)子的結(jié)構(gòu)和原理 ...................................................................................... 9 其它部分的結(jié)構(gòu)和原理 .............................................................................. 9 直流電動機(jī)的控制原理 ................................................................................... 10 第 3 章 單片機(jī) STC89C51.........................................................................................11 單片機(jī)概況 .......................................................................................................11 單片機(jī)內(nèi)部結(jié)構(gòu)和原理 ...................................................................................11 復(fù)位電路及時(shí)鐘電路 ...................................................................................... 12 單片機(jī)最小系統(tǒng) .............................................................................................. 13 第 4 章 PWM 調(diào)制和電機(jī)的使用 ............................................................................. 14 PWM 調(diào)制 ........................................................................................................ 14 直流電機(jī)的使用 .............................................................................................. 14 電機(jī)的啟動 ............................................................................................... 14 電機(jī)的調(diào)速 ............................................................................................... 14 電機(jī)的反轉(zhuǎn) ............................................................................................... 15 電機(jī)的制動 ................................................................................................ 15 電機(jī)驅(qū)動芯片 L293d ...................................................................................... 15 第 5 章 系統(tǒng)硬件設(shè)計(jì) ............................................................................................. 17 系統(tǒng)硬件電路圖 .......................................................................................... 17 系統(tǒng)硬件 PCB 圖 ........................................................................................ 18 實(shí)物圖 .......................................................................................................... 19 結(jié)論 ........................................................................................................................... 20 致謝 ........................................................................................................................... 21 參考文獻(xiàn) ................................................................................................................... 22 附錄 .............................................................