電子線路CAD設(shè)計(jì)項(xiàng)目化教程（高職）

概述............................................................................................................................................................................ 10.1 PCB基礎(chǔ)知識(shí)............................................................................................................................................... 10.1.1 印制電路板的概念................................................................................................................................ 10.1.2 印制電路板的組成................................................................................................................................ 20.2 電子產(chǎn)品設(shè)計(jì)的一般流程........................................................................................................................... 20.3 元件類型....................................................................................................................................................... 5項(xiàng)目一 單管放大電路設(shè)計(jì)............................................................................................................................. 61.1 項(xiàng)目概述....................................................................................................................................................... 61.2 設(shè)計(jì)數(shù)據(jù)庫(kù)及文件創(chuàng)建基本操作............................................................................................................... 61.3 原理圖編譯器界面簡(jiǎn)介............................................................................................................................. 101.3.1 菜單欄.................................................................................................................................................. 111.3.2 工具欄.................................................................................................................................................. 111.3.3 管理窗口.............................................................................................................................................. 131.3.4 文件標(biāo)簽.............................................................................................................................................. 131.3.5 工作窗口.............................................................................................................................................. 131.4 單管放大電路原理圖的繪制..................................................................................................................... 151.4.1 放置元件及布局.................................................................................................................................. 151.4.2 修改元件屬性參數(shù).............................................................................................................................. 171.4.3 繪制導(dǎo)線.............................................................................................................................................. 181.4.4 放置電源對(duì)象...................................................................................................................................... 201.4.5 ERC校驗(yàn)............................................................................................................................................. 201.4.6 生成元件清單...................................................................................................................................... 221.5 元件封裝..................................................................................................................................................... 251.6 PCB編譯器界面簡(jiǎn)介................................................................................................................................. 281.6.1 菜單欄.................................................................................................................................................. 291.6.2 工具欄.................................................................................................................................................. 301.6.3 管理窗口.............................................................................................................................................. 301.6.4 印制電路板的層.................................................................................................................................. 311.7 單管放大電路的PCB設(shè)計(jì)........................................................................................................................ 331.7.1 修改元件封裝與創(chuàng)建網(wǎng)絡(luò)表.............................................................................................................. 331.7.2 加載網(wǎng)絡(luò)表.......................................................................................................................................... 351.7.3 PCB布局............................................................................................................................................. 401.7.4 PCB布線............................................................................................................................................. 431.7.5 其它操作.............................................................................................................................................. 48項(xiàng)目總結(jié).............................................................................................................................................................. 49實(shí)踐訓(xùn)練.............................................................................................................................................................. 50項(xiàng)目二 直流穩(wěn)壓電源電路設(shè)計(jì).................................................................................................................. 532.1 項(xiàng)目概述..................................................................................................................................................... 532.1.1 整流濾波電路的工作原理.................................................................................................................. 542.1.2 三端固定穩(wěn)壓器和三端可調(diào)穩(wěn)壓器.................................................................................................. 552.1.3 整流橋和整流二極管.......................................................................................................................... 562.2 直流穩(wěn)壓電源電路原理圖繪制................................................................................................................. 572.2.1 自定義元件的原理圖符號(hào).................................................................................................................. 582.2.2 原理圖繪制.......................................................................................................................................... 622.3 自定義元件封裝......................................................................................................................................... 642.3.1 10uf小電解電容封裝設(shè)計(jì)................................................................................................................. 642.3.2 發(fā)光二極管的封裝設(shè)計(jì)...................................................................................................................... 692.3.3 整流橋封裝設(shè)計(jì).................................................................................................................................. 712.3.4 穩(wěn)壓器封裝設(shè)計(jì).................................................................................................................................. 722.3.5 接口封裝設(shè)計(jì)...................................................................................................................................... 742.4 直流穩(wěn)壓電源電路的PCB設(shè)計(jì)................................................................................................................ 752.4.1 添加元件封裝庫(kù).................................................................................................................................. 752.4.2 封裝修改.............................................................................................................................................. 782.4.3 精準(zhǔn)的PCB對(duì)稱布局........................................................................................................................ 802.5 PCB設(shè)計(jì)中的一些技巧............................................................................................................................. 832.5.1 焊盤補(bǔ)淚滴.......................................................................................................................................... 832.5.2 布線規(guī)則設(shè)置...................................................................................................................................... 84項(xiàng)目總結(jié).............................................................................................................................................................. 85實(shí)踐訓(xùn)練.............................................................................................................................................................. 85項(xiàng)目三 8051紅外遙控控制電路................................................................................................................. 893.1 項(xiàng)目概述..................................................................................................................................................... 893.2 8051紅外遙控接收電路原理圖設(shè)計(jì)........................................................................................................ 913.2.1 加載元件庫(kù).......................................................................................................................................... 913.2.2 自定義元件.......................................................................................................................................... 933.2.3 繪制電路原理圖.................................................................................................................................. 933.3 8051紅外遙控接收電路PCB設(shè)計(jì)........................................................................................................... 943.3.1 自定義元件封裝.................................................................................................................................. 943.3.2 8051紅外遙控接收電路PCB設(shè)計(jì)................................................................................................... 953.4 帶總線的原理圖繪制................................................................................................................................. 97項(xiàng)目總結(jié).............................................................................................................................................................. 98實(shí)踐訓(xùn)練.............................................................................................................................................................. 99項(xiàng)目四 47耳放設(shè)計(jì)...................................................................................................................................... 1014.1 項(xiàng)目概述................................................................................................................................................... 1014.2 47耳放電路原理圖繪制.......................................................................................................................... 1024.2.1 復(fù)合式元器件.................................................................................................................................... 1024.2.2 自定義復(fù)合式元器件........................................................................................................................ 1064.3 47耳放的PCB設(shè)計(jì)................................................................................................................................. 1084.3.1 自定義元件封裝................................................................................................................................ 1084.3.2 47耳放的PCB設(shè)計(jì)......................................................................................................................... 1094.3.3 音頻電路PCB走線中的一點(diǎn)接地.................................................................................................. 110項(xiàng)目總結(jié)............................................................................................................................................................ 110實(shí)踐訓(xùn)練............................................................................................................................................................ 111項(xiàng)目五 TDA2030 2.1音頻功率放大器................................................................................................. 1145.1 項(xiàng)目概述................................................................................................................................................... 1145.2 2.1音頻功率放大器原理圖繪制............................................................................................................. 1155.3 自定義元件封裝....................................................................................................................................... 1155.3.1 電位器的封裝設(shè)計(jì)............................................................................................................................ 1155.3.2 TDA2030的封裝設(shè)計(jì)...................................................................................................................... 1165.4 2.1音頻功率放大器PCB設(shè)計(jì)................................................................................................................ 1175.4.1 雙面PCB工藝簡(jiǎn)介.......................................................................................................................... 1175.4.2 雙面PCB設(shè)計(jì)基礎(chǔ).......................................................................................................................... 1185.4.3 過孔布線處理.................................................................................................................................... 1205.4.4 TDA2030 2.1音頻功率放大器PCB設(shè)計(jì)....................................................................................... 121項(xiàng)目總結(jié)............................................................................................................................................................ 122實(shí)踐訓(xùn)練............................................................................................................................................................ 122項(xiàng)目六 CH341A下載器設(shè)計(jì).................................................................................................................... 1256.1 項(xiàng)目概述................................................................................................................................................... 1256.2 認(rèn)識(shí)SMT元器件..................................................................................................................................... 1256.2.1 SMT電阻.......................................................................................................................................... 1266.2.2 SMT電容.......................................................................................................................................... 1276.2.3 SMT二極管...................................................................................................................................... 1286.2.4 SMT三極管...................................................................................................................................... 1286.2.5 SMT集成電路封裝.......................................................................................................................... 1296.3 自定義SMT元件封裝............................................................................................................................. 1306.3.1 SMT晶振的封裝設(shè)計(jì)...................................................................................................................... 1306.3.2 SMT單列接口封裝.......................................................................................................................... 1316.3.3 SMT類型的USB母座封裝............................................................................................................ 1326.4 CH341A下載器PCB設(shè)計(jì)...................................................................................................................... 1336.4.1 修改元件封裝.................................................................................................................................... 1336.4.2 創(chuàng)建網(wǎng)絡(luò)表并在PCB文件中加載.................................................................................................. 1336.4.3 PCB布局布線................................................................................................................................... 134項(xiàng)目總結(jié)............................................................................................................................................................ 135實(shí)踐訓(xùn)練............................................................................................................................................................ 135項(xiàng)目七 8051紅外遙控接收電路(基于AltiumDesigner軟件).................................................... 1387.1 Altium Designer軟件中的工程創(chuàng)建........................................................................................................ 1387.2 自定義元件............................................................................................................................................... 1417.3 Altium Designer軟件中的原理圖繪制基礎(chǔ)............................................................................................ 1457.3.1 原理圖文件的創(chuàng)建與保存................................................................................................................ 1457.3.2 元件放置及屬性修改........................................................................................................................ 1477.3.3 電路連接............................................................................................................................................ 1487.4 自定義元件封裝....................................................................................................................................... 1497.4.1 新建PCB封裝庫(kù)文件...................................................................................................................... 1497.4.2 修改元件封裝名稱............................................................................................................................ 1507.4.3 繪制元件封裝.................................................................................................................................... 1517.5 元件封裝的修改與自定義封裝的使用................................................................................................... 1577.5.1 修改元件封裝.................................................................................................................................... 1577.5.2 使用自定義封裝................................................................................................................................ 1617.6 Altium Designer軟件中PCB設(shè)計(jì)基礎(chǔ).................................................................................................. 1647.6.1 創(chuàng)建PCB文件.................................................................................................................................. 1647.6.2 從原理圖導(dǎo)入PCB........................................................................................................................... 1657.6.3 繪制PCB的機(jī)械層邊界.................................................................................................................. 1677.6.4 設(shè)置特殊元件的位置........................................................................................................................ 1687.6.5 元件布局............................................................................................................................................ 1697.6.6 PCB規(guī)則設(shè)置與PCB布線............................................................................................................. 1737.6.7 3D顯示.............................................................................................................................................. 177項(xiàng)目總結(jié)............................................................................................................................................................ 178實(shí)踐訓(xùn)練............................................................................................................................................................ 179綜合實(shí)訓(xùn).............................................................................................................................................................. 181實(shí)訓(xùn)1 50 W音頻功率放大器設(shè)計(jì)................................................................................................................ 181實(shí)訓(xùn)2 全對(duì)稱耳放設(shè)計(jì)................................................................................................................................. 182實(shí)訓(xùn)3 Solo耳放電路設(shè)計(jì)............................................................................................................................. 184實(shí)訓(xùn)4 出租車?yán)锍趟俣扔?jì)電路設(shè)計(jì)............................................................................................................. 185實(shí)訓(xùn)5 TC9012紅外遙控發(fā)射電路............................................................................................................... 185實(shí)訓(xùn)6 STK4182厚膜功放............................................................................................................................. 186實(shí)訓(xùn)7 簡(jiǎn)易計(jì)算器......................................................................................................................................... 187實(shí)訓(xùn)8 LME49600擴(kuò)流耳放設(shè)計(jì).................................................................................................................. 188附錄1 Protel99SE快捷操作................................................................................................................... 189附錄2 擴(kuò)展閱讀............................................................................................................................................. 191參考文獻(xiàn).............................................................................................................................................................. 192