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) {return true;} else {window.open('http://u.dianyuan.com/bbs/u/60/1857941197022355.bmp');}" onmousewheel="return imgzoom(this);">3525输出调节
今天用3525芯片搭了个电路,1脚是从16脚基准电压5.1V上取得2.5V电压,二脚输入0-3V电压,输出不可调,只能是全开或者关闭,我的9脚没用到!!该怎样做才能使输出脉宽可调呢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) {return true;} else {window.open('http://u.dianyuan.com/bbs/u/60/1857941197022355.bmp');}" onmousewheel="return imgzoom(this);">
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) {return true;} else {window.open('http://u.dianyuan.com/bbs/u/60/1857941197022355.bmp');}" onmousewheel="return imgzoom(this);">