qf58:
谢谢!电流很小,是拉低UC3845第一脚的(38452脚对地了),3845第一脚0.7V以下才能关机![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/76/751741239062493.jpg');}"onmousewheel="returnimgzoom(this);">