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哪位高手帮看看:空载时变压器叫,驱动波形不稳定,一会占空比很小,一会稍大,调了补偿网络,还是变压器叫.带满载或半满载驱动波形正常,变压器也不叫. 还有一个问题,开关管源级波形除了输入某一电压没有震荡外,其余输入电压都有震荡.暂时没条件上传波形.
能否提供原理图看看？或者你的电路有没有加斜坡补偿？
