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我想请问一下有关芯片PS引脚的功能是什么呀，把PS引脚拉高电位可以防止芯片啸叫吗？
数据手册上说芯片开关频率固定2.4MHz，为什么还会被改变呢？
开关节点波形和原理图上传一下
另外你的电感是功率电感么，饱和电流是否有足够的裕量
