高频变压器,漏感测试结果..

一直想做一个高频变压器,磁芯、骨架、漆包线、高温胶带、青壳纸是几个月前就备好了的,一直下不了决心,原因很简单,总觉得太难做了,不知会不会成功.前几天,PCB到了,再也拖不下去了,昨天硬着头皮开始做了(差不多做了一天时间).
    磁芯是EE55/21的,保守一点,做600-700W的,频率大约定在25K~30K之间;用次级+初级+次级的夹心绕法.先绕次级,用0.93线绕30匝后停下;初级用厚0.2宽29铜带饶2+2,然后用同样的铜带再绕2+2,二个2+2并联,这样初级有11.6平方MM;最后再用0.93绕30匝(设计次级电压360V),也就是绕完次级.初次间用青壳纸隔离.
    绕完后用高压仪打了一下,初次级之间交流1500V、20秒没有击穿现象.
    又用电桥测了一下电感量:初级20uH+20uH,次级19mH.

    等明天焊了PCB板,试一试效果,但愿菩萨保佑,一切顺利.



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这是放在PCB上的样子
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