..试用了几块3525驱动2对170n06十ee70加厚变压器!驱动板3525试过st的..on的..m的!试过直驱!也试过加b772..d88..tip41..tip42!!驱动频率从5k至50k反复调!空载电流只有0.几A!就是波型太烂了!请师傅们指教指教!先谢过了!
![](http://u.dianyuan.com/upload/t/space/2011/09/14/1315966765-528157.jpg?x-oss-process=image/watermark,g_center,image_YXJ0aWNsZS9wdWJsaWMvd2F0ZXJtYXJrLnBuZz94LW9zcy1wcm9jZXNzPWltYWdlL3Jlc2l6ZSxQXzQwCg,t_20)
3525..11-14脚空时测的波型.还算正常
![](http://u.dianyuan.com/upload/t/space/2011/09/14/1315966829-528160.jpg?x-oss-process=image/watermark,g_center,image_YXJ0aWNsZS9wdWJsaWMvd2F0ZXJtYXJrLnBuZz94LW9zcy1wcm9jZXNzPWltYWdlL3Jlc2l6ZSxQXzQwCg,t_20)
一连上场馆!变压器之后空载变振荡波了(测初级两极的...................但连负载之后!波型会变的!小负载!时振荡没了!变成了尖峰!再加大一点负载!波型在一段范围内尖峰降了好多!可是负载继续加大!波型又会岀现丨倍的尖峰
![](http://u.dianyuan.com/upload/t/space/2011/09/14/1315966871-528162.jpg?x-oss-process=image/watermark,g_center,image_YXJ0aWNsZS9wdWJsaWMvd2F0ZXJtYXJrLnBuZz94LW9zcy1wcm9jZXNzPWltYWdlL3Jlc2l6ZSxQXzQwCg,t_20)
12v带载输人40a电流的d极波型!尖峰达平顶的1倍至1.2倍太恐怖了
![](http://u.dianyuan.com/upload/t/space/2011/09/14/1315967561-528186.jpg?x-oss-process=image/watermark,g_center,image_YXJ0aWNsZS9wdWJsaWMvd2F0ZXJtYXJrLnBuZz94LW9zcy1wcm9jZXNzPWltYWdlL3Jlc2l6ZSxQXzQwCg,t_20)
也试过用ec40双线并绕8+8..外径32mm小非晶双线并绕6+6!!ee70单双线并绕个初级4+4!!同样是空载都有约一倍尖峰!搞到我无心工作!睡觉无安!...............................
![](http://u.dianyuan.com/upload/t/space/2011/09/14/1315968324-528207.jpg?x-oss-process=image/watermark,g_center,image_YXJ0aWNsZS9wdWJsaWMvd2F0ZXJtYXJrLnBuZz94LW9zcy1wcm9jZXNzPWltYWdlL3Jlc2l6ZSxQXzQwCg,t_20)
断开变压器!换成灯泡就好!我无语!请师傅们指导下!问题最可能在哪