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求一个12V隔离电源的方案

Other Parts Discussed in Thread: LM5030, LM2587, TL494, LM5160

求一个12V输入,输出12V和5V的隔离电源的方案,或者单12V输出的方案。

疑问:看到一块板子上面用LM5030做的12V电源隔离,半桥驱动,但我查LM5030文档,建议的VIN输入是14V-90V,请问该如何设计,以及变压器如何设计?

谢谢。