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/59/1387031194280631.bmp');}" onmousewheel="return imgzoom(this);">一款很好的驱动电路
看到网站上有好多UPS电路,不过用IC驱动MOS管做的很复杂,而且MOS管不好伺候易烧,还有就是三极管了,三极管自激电路简单但效率低,空载电流大,还有就是频率不好控制,最近设计了一款适合驱动三极管的电路,而且开关频率可调,占空比可调,方便地实现了稳压.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/59/1387031194280631.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/59/1387031194280631.bmp');}" onmousewheel="return imgzoom(this);">