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/67/700751217384797.gif');}" onmousewheel="return imgzoom(this);">看看我用分立元件设计的低压差宽输入电压高效率开关降压稳压器
本电路输入电源范围宽,低压差,可根据输入电压自动调频调宽,最大脉宽100%,电路简单.效率高达90%以上,原理如图.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/67/700751217384797.gif');}" onmousewheel="return imgzoom(this);">
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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/67/700751217385321.jpg');}" onmousewheel="return imgzoom(this);">