可控硅后级电路不起振的原因.....

可控硅后级电路不起振的原因.....

圈中的触发管有何作用?不用可以吗....

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/57/317121189926502.jpg?x-oss-process=image/watermark,g_center,image_YXJ0aWNsZS9wdWJsaWMvd2F0ZXJtYXJrLnBuZz94LW9zcy1wcm9jZXNzPWltYWdlL3Jlc2l6ZSxQXzQwCg,t_20');}" onmousewheel="return imgzoom(this);">

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阿保本

LV.4

2007-09-16 15:48

不行,如果没有就用两个三级管背对背串起就行了

wbp001

LV.7

2007-09-16 17:38

各位兄弟赐教:A-B间480V,触发电阻调至约470k,灯泡为何不亮?

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/57/317121189935492.jpg');}" onmousewheel="return imgzoom(this);">

wbp001

LV.7

2007-09-16 17:42

@wbp001

各位兄弟赐教:A-B间480V,触发电阻调至约470k,灯泡为何不亮?[图片]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){returntrue;}else{window.open('http://u.dianyuan.com/bbs/u/57/317121189935492.jpg');}"onmousewheel="returnimgzoom(this);">

刚接上的后级

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/57/317121189935766.jpg');}" onmousewheel="return imgzoom(this);">

hzzs

LV.4

2007-09-16 20:02

@wbp001

刚接上的后级[图片]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){returntrue;}else{window.open('http://u.dianyuan.com/bbs/u/57/317121189935766.jpg');}"onmousewheel="returnimgzoom(this);">

先把750、470K去掉