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请问D类功放的半桥逆变加入变压器的作用是什么？
想做一款100W的功放，看到很多都是功放IC直接LC滤波，但是也有一些方案是隔离半桥的变压器之后用LC滤波，想了解一下问什么会有变压器这种方案？
多谢
