• State TI Thinks Resolved
  • Locked Locked
  • Replies 1 reply
  • Answers 1 answer
  • Subscribers 83 subscribers
  • Views 382 views
  • Users 0 members are here
Support feedback
Options
Options
Similar topics

This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

BLPFC

tomue
Prodigy 90 points

hello.

now,I use bridgeless PFC kit,I downloaded the CONTROLSUIT program into the board and found the relationship between the input voltage and the current as shown in the diagram.The voltage waveform is yellow, and the pink is the input current waveform.

Obviously, the waveform of the input current is abnormal.

1,Where should I adjust the coefficient?

2,I want to know if PfcIcmd is a standard sine wave?


  • 0
    TI__Genius 11495 points

    It seems like there is an issue with the board. The waveform should not be that way. The input EMI filter might be missing, or there could be some other problem. Pls use the User-Guide of BLPFC and verify the Build 1 ~3 software step by step with the hardware and diagnose the problem. If it cannot be debugged then pls get a replacement.

    In this  case PFC_ICMD will not be sine but a rectified sine-wave with the peak having a dip in magnitude.

    Shamim