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最近用了一款原边反馈的IC做恒流输出，发现增加MOS管的加速二极管会导致输出电流减小很多，并且不恒流，用不同的二极管得出不同效果，去掉电流正常，精度也很好，请大侠帮忙分析下，谢谢！
最好提供电路原理图来看看。
