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我现在实验的开关电源出现这种情况:当输入电压(AC)增大时,驱动波形出现图中情况,我用的管子是MOSFET(IRFPC60),情高手分析一下原因.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/47/1163732647.gif');}" onmousewheel="return imgzoom(this);">
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