CCS/UCD3138CC64EVM-030: How to accomplish codes change？

chenqiang jia

Part Number: UCD3138CC64EVM-030

Tool/software: Code Composer Studio

Could you please explain how to accomplish Code if Vin is dropped to15-20v，Vout dropped to 25-30v，I use PWR026_PFC.

0 Bosheng Sun over 5 years ago

Hi,

Change PFC setpoint from 390 to 30 (line 195 in your attached picture)

Change VAC_MIN_ON from 85 to 0

Change VAC_MIN_OFF from 80 to 0

Note TI EVM PWR026 does not support such low input voltage.

Bosheng

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