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UCC28730EVM-552 AC/DC Evaluation Board, AC input FG(Frame Ground) Connection

Lee Kyung Suk
Prodigy 20 points
Other Parts Discussed in Thread: UCC28730EVM-552

Hi

I received an UCC28730EVM-552, and it runs well.

I'm trying to design a AC/DC(5V,2A). I will use this EVM circuit as reference.

But, My AC Input has 3 lines. (L, N, FG). This EVM can connect only L and N.

I want to connect an AC input FG to this EVM.  Such as following diagram

I'm poor at AC power circuit.

If you have any idea, please let me know.

UCC28730EVM-552 Schematic