好几家的3842/3/4/5产品资料里面都有这个图,变压器的参数是相同的.可是我算出来和它差距太大,特别是Np.但是用他的次级推Np也不对啊.不知道我哪里错了.
条件:95-130Vac,40KHz,输出5V/4A,12V/0.3A,-12V/0.3A,Dmax=0.45,效率70%.
磁芯:EC-35/3C8
![](http://u.dianyuan.com/bbs/u/32/1123722824.jpg?x-oss-process=image/watermark,g_center,image_YXJ0aWNsZS9wdWJsaWMvd2F0ZXJtYXJrLnBuZz94LW9zcy1wcm9jZXNzPWltYWdlL3Jlc2l6ZSxQXzQwCg,t_20)
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