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LM3478如何进行环路设计

Other Parts Discussed in Thread: LM3478

我用LM3478进行一个升压设计,输入18-36,输出300V

功率等级为150W

原边感值9uH,匝比1:5

在空载的时候,环路稳定,随着负载的加重,变压器开始蜂鸣,并且环路剧烈震荡

我发现电路在即将进入CCM工作模式时开始剧烈震荡,请问如何解决?