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TI的工程师，我电源UCC28070在150VAC输入时就容易不稳定，受干扰，在220VAC输入与110VAC输入都不易受干扰，能稳定工作，就150V左右时不能稳定工作，电感乱叫，易收干扰，请问有什么原因造成？
