【正文】 五邑大學(xué)本科畢業(yè)論文 1目 錄摘 要........................................................................................................................................3 Abstract...........................................................................................................................................4緒論................................................................................................................................................ 5 引言.........................................................................................................................5 電源的發(fā)展趨勢(shì)....................................................................................................5 國(guó)內(nèi)外研究現(xiàn)狀....................................................................................................5 本文的研究?jī)?nèi)容....................................................................................................6 照明光源的發(fā)展與優(yōu)缺點(diǎn)....................................................................................7 LED 電源設(shè)計(jì)要求 ...............................................................................................8第 2 章 開(kāi)關(guān)電源的所具有制作..................................................................................................10 開(kāi)關(guān)電源的基本原理...........................................................................................10 開(kāi)關(guān)電源的幾種拓?fù)浣Y(jié)構(gòu)...................................................................................11 本文數(shù)控電源的控制形式...................................................................................11 反激式開(kāi)電源的工作原理...................................................................................12 反激式開(kāi)關(guān)電源的設(shè)計(jì)..........................................................................................14 ，確定設(shè)計(jì)要求..........................................................................................14 ，IC 的選擇..................................................................................................14，變壓器的設(shè)計(jì)........................................................................................................15 ，開(kāi)關(guān)電源變壓器的繞線(xiàn)方法...................................................................15 ，磁飽和.......................................................................................................15五邑大學(xué)本科畢業(yè)論文 2 ，變壓器參數(shù)的計(jì)算...................................................................................16 本章小結(jié).................................................................................................................21第 3 章 第 3 章主控板的制作與系統(tǒng)軟件設(shè)計(jì).......................................................................21 主控板電路原理圖模塊.........................................................................................21 系統(tǒng)軟件設(shè)計(jì)........................................................................................................24 主程序設(shè)計(jì).................................................................................................25 模塊....................................................................................................26 本章小結(jié).................................................................................................................26第 4 章 第 4 章 結(jié)果與討論....................................................................................................27 開(kāi)關(guān)電源原邊電壓波形圖.....................................................................................27 開(kāi)關(guān)管的占空比.....................................................................................................29 開(kāi)關(guān)電源的效率.....................................................................................................30 漏感導(dǎo)致效率低..........................................................................................31 勵(lì)磁電流導(dǎo)致.............................................................................................31 原件及磁芯的選取......................................................................................31 單片機(jī)的電壓、溫度采集與 PWM 控制..............................................................33 作品實(shí)物圖片..........................................................................................................33 開(kāi)關(guān)電源實(shí)物作品圖片.............................................................................34 單片機(jī)控制模塊作品圖片.........................................................................34 本章小結(jié)..................................................................................................................34參考文獻(xiàn)......................................................................................................................................36五邑大學(xué)本科畢業(yè)論文 3致謝..............................................................................................................................................37 摘 要與傳統(tǒng)開(kāi)關(guān)電源相比，數(shù)控電源具有智能功率管理功能，是未來(lái)智能電網(wǎng)終端應(yīng)用的重要技術(shù)。在開(kāi)關(guān)電源中插入單片機(jī)控制環(huán)節(jié)是實(shí)現(xiàn)數(shù)控電源的一種方法，通過(guò)傳感器和單片機(jī)的結(jié)合，可以實(shí)時(shí)捕獲電源的當(dāng)前工作狀態(tài)信息，通過(guò)程序處理，