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https://e2e.ti.com/support/power-management-group/power-management/f/power-management-forum/650227/uc3854-is-it-possible-to-supply-the-uc3854-buck-pfc-circuit
是否可以为 UC3854降压 PFC 电路供电？
客户状况：
输入电压：220VAC~575VAC
Vo：310V/4A
