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/69/162621222503615.gif');}" onmousewheel="return imgzoom(this);">电源过流保护应该是...
大家好,我想请问电源的过流保护波形应该是怎样的,是“电压随着负载电流的增加而降低,最后到一定程度在进入打嗝状态.还是负载到了限定值,输出电压跌落到零.”我一直没弄明白,请大家讨论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/69/162621222503615.gif');}" 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/69/162621222503615.gif');}" onmousewheel="return imgzoom(this);">