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/54/555531182762018.bmp');}" onmousewheel="return imgzoom(this);">电子镇流器用PTC预热启动,会出现阶梯状点亮是什么原因?
兄弟作14WT5负载镇流器,用PTC作预热启动,为什么等点亮的时候不是一下点亮,而是先微亮,然后灯才正常点亮,请教高手,这是什么原因造成的,改用什么样的PTC?贴一下启动波形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/54/555531182762018.bmp');}" 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/54/555531182762018.bmp');}" onmousewheel="return imgzoom(this);">全部回复(30)
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@liuliuliu
555531183432744.pdf这是图
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/55/555531183538273.bmp');}" onmousewheel="return imgzoom(this);"> 0
