DC-DC电路上电试验,加550W负载的波形图,请各位指教.

我的DC-DC升压电路刚焊好,就用稳压电源通电试了,现在频率是18.3K,原先想做到20-25K的,因为我的二极管是FR607,工作频率可能不够,就降为18.3K了,通12V电后,空载电流为240MA,因为怀疑这几个2907是假货,所以暂没有挂负载.下面是波形照片,因为我没有做DC-DC的经验,不知这样的照片是不是正常,请有经验的同志指教,谢谢了.

前题是全部为空载,没有反馈.D极没有加RC吸收.

下图是场管D极上的波形:

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下图是高压绕组(360V)上的波形:
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下图是低压绕组(16+16)上的波形:
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下面是DC-DC板外形图:
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