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ucc28019带载切换到不带载,再带载,28019损坏。

Other Parts Discussed in Thread: UCC28019

输入AC105V,输出设置DC170V,带载100W,工作正常。断开负载再接上负载,ucc28019就没输出了,电压输出只有147V。28019外观也无损伤,请教下大侠,为什么会损坏28019?MOS没坏。以下是带载时候的电流及DS波形