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关于一个驱动电源能否给两个开关管供电?

一个2W的驱动电源E0512S_2W给两个下桥臂开关管的驱动芯片供电,且两个下桥臂开关管分属于两个驱动芯片,每个驱动芯片驱动一个半桥,但是上桥臂开关管各自有自己的驱动电源。

目前两个下桥臂的开关管脉冲有缺失,能够认为是因为两个下桥臂的供电电源不隔离造成的?