【正文】 ......................................................... 2 直流供電電路 ....................................................................................................... 2 控制電路分析 ....................................................................................................... 2 2. 元件及其在電路中組成的單元電路 ........................................................................... 3 三、需備元件清單 ................................................................................................................... 7 四、電路原理圖及分析 ........................................................................................................... 9 ............................................................................................................. 9 2. 電路分析 ..................................................................................................................... 10 整流橋整流電路 ................................................................................................. 10 控制電路 ............................................................................................................. 10 光控電路 ..............................................................................................................11 聲控電路 ............................................................................................................. 12 延時電路 ............................................................................................................. 12 五、使用 99SE 繪制原理圖 ................................................................................................... 14 1. 原理圖設計、繪制的過程 ......................................................................................... 14 2. 繪制電路圖 ................................................................................................................. 14 ................................................................................................................... 19 六、 PCB（印刷電路板）制作 .............................................................................................. 21 PCB 文件 .............................................................................................................. 21 七、心得體會 ......................................................................................................................... 25 附錄一 ..................................................................................................................................... 26 附錄二 ..................................................................................................................................... 27 附錄三 ......................................................................