zhouyubo:
找个旧电脑的AT或ATX电源,电路图大多差不多,大多都是用TL494推动的,变动1脚对地的或对正极输出的取样电阻就能该变电压[图片]500){this.resized=true;this.width=500;this.alt='这是一张缩略图,点击可放大。\n按住CTRL,滚动鼠标滚轮可自由缩放';this.style.cursor='hand'}"onclick="if(!this.resized){returntrue;}else{window.open('http://u.dianyuan.com/bbs/u/39/1143646001.jpg');}"onmousewheel="returnimgzoom(this);">1143646185.doc