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/44/1155696027.gif');}" onmousewheel="return imgzoom(this);">各位大师,市电驱动CCFL的板子为何多个变压器?(有图)
各位大师,市电驱动CCFL的板子为何多个变压器?(有图)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/44/1155696027.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/44/1155696027.gif');}" onmousewheel="return imgzoom(this);">全部回复(5)
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@darren123
所謂你說的多一個變壓器,那是一個開關電源的變壓器,它是將市電通過變壓器轉換成inverter所要的直流電壓
我看不太像啊,因为开关变压器总得有个开关管吧?但是没有,倒有电像emi滤波器的接法,接在整流滤波后的直流电压两端.如图示意.
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/44/1155782616.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/44/1155782616.gif');}" onmousewheel="return imgzoom(this);"> 0
