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LM5180调试遇到问题

Other Parts Discussed in Thread: LM5180

反激电源用的是LM5180芯片,最近调试时遇到一个问题,无论是空载或负载运行时,测量SW引脚,在连续运行和断续运行之间反复切换,造成输出电压下跌,纹波太大,变压器感值、匝比,反馈电阻等参数均参考datasheet中设计,请问是什么原因导致出现此情况呢?

x 出现错误。请重试或与管理员联系。