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我现在要做一批输入12V输出负1-4V 8A的小体积电源,我用的是34063芯片,但输出就是达不到满载就爆管子,不知道什么原因?请大侠指导,如果那位有成品,报价吧!合适的话,我长期要.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/38/1139064845.gif');}" onmousewheel="return imgzoom(this);">
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