我们公司研发了PI/BCD/361三种方案各有优点,但是都出现了问题,还请高手指导!对了,我是只新菜鸟...
3744281261376581.pdf 3744281261376589.pdf 3744281261376597.pdf
还请见原理图,其中第二款电源是PI方案的,它出现的问题是批量里面有部分带载启动不了,要空载启动2秒后,才能带载启动,我们尝试更替了LNK614IC,可效果不明显,我想可能是变压器的问题,我们在初级多加了绕线,但是怕影响EMI..,以下附件是三款电源的原理图和变压器的参数怎么解决呢?请高手帮帮小妹吧!在此无限的感谢...
![](http://u.dianyuan.com/bbs/u/84/3744281261377445.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/84/3744281261377445.jpg?x-oss-process=image/watermark,g_center,image_YXJ0aWNsZS9wdWJsaWMvd2F0ZXJtYXJrLnBuZz94LW9zcy1wcm9jZXNzPWltYWdlL3Jlc2l6ZSxQXzQwCg,t_20');}" onmousewheel="return imgzoom(this);">
![](http://u.dianyuan.com/bbs/u/84/3744281261377450.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/84/3744281261377450.jpg?x-oss-process=image/watermark,g_center,image_YXJ0aWNsZS9wdWJsaWMvd2F0ZXJtYXJrLnBuZz94LW9zcy1wcm9jZXNzPWltYWdlL3Jlc2l6ZSxQXzQwCg,t_20');}" onmousewheel="return imgzoom(this);">
很急...
3744281261381367.pdf 3744281261381376.pdf 3744281261381383.pdf 3744281261381391.pdf
看来我这个难题是没人可以解决了,想EMI好过,想带载可以启动真这么难啊?我是菜鸟,是真的想学习点东西啊...