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电路中这个4.7U电感起啥作用，这是啥拓扑的？
亲；这是罗氏变缓电路，电感主要是用作能量振荡变缓。
你好，这是sepic电路，谢谢。
您好，叫做耦合电感，也可以使用两个独立的电感代替，是典型的sepic升降压拓扑。
