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TMDSHVBLPFCKIT: Load current using CCH mode with exception on load side

Part Number: TMDSHVBLPFCKIT
Other Parts Discussed in Thread: TIDM-1007

Hi team,

Here's an issue from the customer may need your help:

Burn TI's routines and adjust to current-voltage dual closed-loop mode, 110-V power-up without load, and output voltage stable at 400 V.

However, with a load current of 0.1A in the CCH mode, the load side shows loading to 3000W. But the input is already current-limited. After power-down and power-up again, the output voltage reaches 430V, the overvoltage protection point is reached, and the input power supply reports a negative opp error.

Could you help check this case? Thanks.

Best Regards,

Cherry