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boost电路能否用耦合电感输出辅助电压

Other Parts Discussed in Thread: LM3488

使用LM3488升压,想要使用耦合电感输出一个辅助的负压。

但查资料发现,耦合电感出辅助输出的情况都是用于BUCK电路,

请问boost也可以这么做么?有什么缺陷没有?

谢谢了!