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UCC28056EVM-296: changed IC to UCC256304 work with UCC28056EVM-296 (problem 2)

Part Number: UCC28056EVM-296
Other Parts Discussed in Thread: UCC28056

Hi all,

AC IN Current Waveform shape is bad at use of step down Transformer.

Step down from 3-phase AC 200 V to single phase 100 V with a commercial transformer

LLC load is 120W.  I have attached osc. wave forms.

Can you point out another broken parts which related to this problem ?