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基于單片機(jī)的路燈穩(wěn)壓控制系統(tǒng)的設(shè)計(jì)-資料下載頁(yè)

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【正文】 本實(shí)現(xiàn)功能。 4 月 7 日~ 4月 12日 完成完整的畢業(yè)設(shè)計(jì)初稿; 4 月 13 日~ 5月 3日 完成完整的畢業(yè)設(shè)計(jì)論文終稿; 一校:總體功能與思路; 二校:功能細(xì)節(jié)、格式細(xì)節(jié); 5 月 4 日~ 5月 17日準(zhǔn)備 畢業(yè)設(shè)計(jì)論文答辯; 5 月 18 日~ 5月 29 日 進(jìn)行畢業(yè)論文答辯 五、 進(jìn)行設(shè)計(jì)(論文)所需條件: 硬件:計(jì)算機(jī), AT89C51 單片機(jī),集成電路芯片, LED 數(shù)碼管,運(yùn)算放大器 ,LED 顯示屏, 三極管,按鍵。 軟件: MCS- 51單片機(jī)仿真開發(fā)系統(tǒng),單片機(jī)開發(fā)板。 在該設(shè)計(jì)中,軟件的設(shè)計(jì)起到舉足輕重的作用,因?yàn)橄到y(tǒng)工作的可靠性以及穩(wěn)定性都是靠軟件(程序)來(lái)控制的。 六、 指導(dǎo)教師意見: 簽名: 年 月 日 i 摘 要: 在生活中,路燈照明是必不可少的,它能使我們的道路更加明亮,使我們的城市 更加美觀 。 本文主要 設(shè)計(jì)了 一種基于 51 單片機(jī)為核心控制器的數(shù)控穩(wěn)壓控制 系統(tǒng) 。該電路具有電壓可步進(jìn)調(diào)制,對(duì)輸出電壓和電流信號(hào)進(jìn)行調(diào)整以及顯示,根據(jù)光照情況進(jìn)行 LED 燈的開關(guān)功能。 本文設(shè)計(jì)的路燈穩(wěn)壓控制系統(tǒng) 主要以 STC89C52 單片機(jī)為核心控制單元,先以光信號(hào)采集電路進(jìn)行繼電器驅(qū)動(dòng),再以數(shù)模轉(zhuǎn)換芯片 DAC0832 輸出參考電壓 ,并 控制 三端穩(wěn)壓器 LM317 輸出電壓 , 同時(shí) 對(duì)輸出電壓 /電流進(jìn)行采樣,接著 采用 A/D 轉(zhuǎn)換芯片 ADC0832 對(duì)采樣的電壓、電流轉(zhuǎn)換為數(shù)字信號(hào),再通過(guò)單片機(jī)實(shí)現(xiàn)閉環(huán)控制。 隨著科學(xué)技術(shù)的不斷發(fā)展,特別 是計(jì)算機(jī)技術(shù)的突飛猛進(jìn),人們節(jié)電意識(shí)的不斷提高,穩(wěn)壓控制電源將會(huì)成為城市建設(shè)的首選。 關(guān)鍵詞 : 單片機(jī)( MCU) ; 數(shù)模轉(zhuǎn)換器( DAC) ; 模數(shù)轉(zhuǎn)換器( ADC) ; 閉環(huán)控制 ii Abstract: In life, street lamp lighting is indispensable, it can make our way more bright, to make our city more beautiful. This paper designed a kind of 51 singlechip microputer as the core controller based on the numerical control voltage control system. This circuit has voltage can be stepping modulation, output voltage and current signal to adjust and display light situation, according to the switch function leds. This design voltage control system mainly lamps STC89C52 singlechip control unit, first with the light signal acquisition circuit relay drivers, again with analogtodigital conversion chip DAC0832 output, and controls the three reference voltage stabilizer LM317 output voltage, the output voltage/current simultaneously on sampling, then adopts A/D conversion chips for sampling ADC0832 voltage, current into digital signals, then through the SCM realizing closedloop control. Along with the development of science and technology, especially the rapid development of puter technology, people power saving consciousness rise ceaselessly, the control of the power supply voltage will bee urban construction of choice. Keywords: Micro Controller Unit (MCU); digitaltoanalog converters (DAC); digital converter (ADC); closedloop control iii 目錄 緒論 1 國(guó)內(nèi)外研究狀況 2 論文的總體結(jié)構(gòu) 3 總體設(shè)計(jì)方案及各功能模塊硬件實(shí)現(xiàn) 4 總體設(shè)計(jì)方案及論證 4 各功能模塊主要硬件實(shí)現(xiàn) 6 三端可調(diào)穩(wěn)壓器 6 數(shù)模轉(zhuǎn)換芯片 7 模數(shù)轉(zhuǎn)換芯片 9 運(yùn)算放大器 11 液晶屏顯示 11 硬件模塊設(shè)計(jì) 13 單片機(jī)控制模塊 13 穩(wěn)壓控制模塊 14 電壓與電流采樣模塊 16 顯示模塊 17 鍵盤模塊 183
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