如图所示,为测量CCFL的特性,用ROYER产生正弦波,副边浮地.电压用高压探头测的,电流串1K电阻.为什么波形这么差呢?怎样改善?谢谢!
![](http://u.dianyuan.com/bbs/u/41/1148658586.gif)
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/41/1148658586.gif');}" onmousewheel="return imgzoom(this);">
![](http://u.dianyuan.com/bbs/u/41/1148658751.gif)
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/41/1148658751.gif');}" onmousewheel="return imgzoom(this);">