【正文】
rent changes, through the display circuit shows the output state and size, are implemented by ADC0809 acquisition and conversion of data and transmit it to the microcontroller judgment processing, so as to realize the intelligent output and control circuit. The BUCK circuit to charge the battery through the battery, the electricity generated by solar panels can be stored, and the use of singlechip microputer to control the working state of the whole system played a battery charging protection, over discharging protection, finally, through the USB interface will be stable DC power supply mobile phone. In addition, designs for potted tree to ensure that the solar panel lighting adequate. The LED light, the charging process of LED, system design has been through the plete pressure protection, avoid excessive battery charging and damage, and the charger adopts modular structure and USB interface, the mobile phone, charging MP3, cameras and other digital products. When the light is not strong enough, the indicator light does not shine, the battery for mobile phone charging, light is strong enough, the indicator lights, solar panels to power, also can charge the rechargeable battery. Software design adopts module design method, divided into the main part of the program, digital tube display module, AD conversion module generating module with PWM pulse width signal. Key words solar energy,battery single chip, intelligent, BUCK converter 3 目錄 摘要 ........................................................................................................................... 1 Abstract ..................................................................................................................... 2 1 引 言 ..................................................................................................................... 4 太陽(yáng)能充電器的研究背景 ......................................................................... 4 太陽(yáng)能充電器的優(yōu)點(diǎn) ................................................................................. 4 硅太陽(yáng)能電池及參數(shù) ................................................................................. 5 本課題研究的主要內(nèi)容 ............................................................................. 5 2 太陽(yáng)能手機(jī)充電器硬件設(shè)計(jì) ............................................................................... 6 表面硬件設(shè)計(jì) .............................................................................................. 6 系統(tǒng)總體設(shè)計(jì)方案 ..................................................................................... 6 太陽(yáng)能電池板的選用及參數(shù) ..................................................................... 7 LM7805 應(yīng)用 ............................................................................................... 8 單片機(jī)電路 ................................................................................................. 9 按鍵指示電路及實(shí)現(xiàn) ............................................................................... 10 數(shù)碼管顯示電路 ....................................................................................... 11 BUCK 斬波電路 ........................................................................................ 12 電壓電流的 A/D 采集 .............................................................................. 13 MAX471 介紹及工作原理 ....................................................................... 15 3 匯編源程序的設(shè)計(jì)實(shí)現(xiàn) ..................................................................................... 15 系統(tǒng)整體程序框架 .................................................................................. 15 電路啟動(dòng)初始化 ...................................................................................... 16 數(shù)碼管顯示子程序 ................................................................................... 17 充電子程序的設(shè)計(jì) ................................................................................... 18 按鍵采集程序 .......................................................................................... 19 數(shù)據(jù)采集及模數(shù)轉(zhuǎn)換程序 ...................................................................... 20 電源子程序的設(shè)計(jì) ................................................................................... 21 結(jié)論 ......................................................................................................................... 23 致 謝 ........................................................................................ 錯(cuò)誤 !未定義書(shū)簽。人類(lèi)要生存社會(huì)要發(fā)展,必須加大綠色可再生能源的利用。 太陽(yáng)能電池是利用太陽(yáng)光和材料相互作用直接產(chǎn)生電能,不需要消耗燃料和水等物質(zhì),使用中不釋放包括二氧化碳在內(nèi)的任何氣體,是對(duì)環(huán)境無(wú)污染的可再生能源。 目前 , 太陽(yáng)能電池的應(yīng)用已從軍事領(lǐng)域、航天領(lǐng)域進(jìn)入工業(yè)、商業(yè)、農(nóng)業(yè)、通信、家用電器以及公用設(shè)施等部門(mén),尤其可以分散地在邊遠(yuǎn)地區(qū)、高山、沙漠、海島和農(nóng)村使用,以節(jié)省造價(jià)很貴的輸電線(xiàn)路。 太陽(yáng)能充電器的優(yōu)點(diǎn) 多功能 太陽(yáng)能充電器 相對(duì)于其他的能源,是可再生的,永遠(yuǎn)也用不完,其他能源的話(huà),一個(gè)是資源稀缺有限,第二個(gè)要花很多錢(qián),多功能太陽(yáng)能充電器 的話(huà),是真正不花錢(qián)的,一年的維護(hù)費(fèi)用相當(dāng)于普通能源的10%左右,所以 在節(jié)能、經(jīng)濟(jì)、安全方面,多功能 太陽(yáng)能充電器 都有它的好處 。 5 硅太陽(yáng)能電池及參數(shù) 硅太陽(yáng)能電池分為單晶硅太陽(yáng)能電池、多晶硅薄膜太陽(yáng)能電池和非晶硅薄膜太陽(yáng)能電池三種。 在實(shí)驗(yàn)室里最高的轉(zhuǎn)換效率為 %,規(guī)模生產(chǎn)時(shí)的效率為 15%。非晶硅薄膜太陽(yáng)能電池成本低重量輕,轉(zhuǎn)換效率較高,便于大規(guī)模生產(chǎn),有極大的潛力。 硅太陽(yáng)能電池片常用的為單晶 125大倒角,其尺寸為 125mm*125mm,對(duì)角線(xiàn) 150mm,功率 ,工作電壓 ,工作電流 ,開(kāi)路電壓 ,短路電流 。常見(jiàn)的太陽(yáng)能電池電壓有 3V、 6V、 9V、 12V、 18V、 32V、48V 等,更大的用于太陽(yáng)能電廠(chǎng)發(fā)電項(xiàng)目 本課題研究的主要內(nèi)容 本充電器通過(guò)太陽(yáng)能電池板將太陽(yáng)能轉(zhuǎn)化為電能 , 通過(guò) BUCK 電路給蓄電池充電,蓄電池將太陽(yáng)能電池板所發(fā)出的電能存儲(chǔ)起來(lái),同時(shí)利用單片機(jī)控制整個(gè)系統(tǒng)的工作狀態(tài)對(duì)蓄電池 起到過(guò)充電保護(hù)、過(guò)放電保護(hù),最后,通過(guò) USB 接口將穩(wěn)定直流電供給手機(jī)。充電過(guò)程中采用 LED 燈、數(shù)碼管指示,