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/54/746161181704860.bmp');}" onmousewheel="return imgzoom(this);">阻容降压,但电机转动有问题,有原理图
电路图如图,应用时只有在220全波整流输出前端那里串一个电阻,电机才可以正常工作.请大家帮忙分析一下原因!!谢谢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/54/746161181704860.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/54/746161181704860.bmp');}" onmousewheel="return imgzoom(this);">全部回复(3)
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@ytuan
应该是干扰的问题,先把过零电路用光藕隔离试试,不行的话把可控硅驱动也换成光藕.
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/55/1273811185701353.jpg');}" onmousewheel="return imgzoom(this);"> 0
