我照这个图做了一个四硅的后级,但怎么试都是没有输出的,100W的灯没有亮和闪,不知道是什么问题,前级我是用一个以前拆下来的EE55加一对3205来试的,用倍压电路,前级是正常工作的,就是后级没有输出,四硅驱动的输出用频率表测试过是正常的,频率可以在35.1HZ-235.5HZ变换的,请高手指点是什么问题??
![](http://u.dianyuan.com/bbs/u/78/3075371245475965.jpg?x-oss-process=image/watermark,g_center,image_YXJ0aWNsZS9wdWJsaWMvd2F0ZXJtYXJrLnBuZz94LW9zcy1wcm9jZXNzPWltYWdlL3Jlc2l6ZSxQXzQwCg,t_20)
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![](http://u.dianyuan.com/bbs/u/78/3075371245476100.jpg?x-oss-process=image/watermark,g_center,image_YXJ0aWNsZS9wdWJsaWMvd2F0ZXJtYXJrLnBuZz94LW9zcy1wcm9jZXNzPWltYWdlL3Jlc2l6ZSxQXzQwCg,t_20)
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/78/3075371245476100.jpg?x-oss-process=image/watermark,g_center,image_YXJ0aWNsZS9wdWJsaWMvd2F0ZXJtYXJrLnBuZz94LW9zcy1wcm9jZXNzPWltYWdlL3Jlc2l6ZSxQXzQwCg,t_20');}" onmousewheel="return imgzoom(this);">