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/55/1614491185263353.gif');}" onmousewheel="return imgzoom(this);">倍压整流电路电容值如何取?
倍压整流电路的输入通常都是工频50hz,220V交流电,请问输入可以是高频交流电吗?比如全桥移相dc-dc变压器副边作为其输入可以吗?电容如何取值呢?附电路图
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