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Fault in driver board CGD12HBXMP

baiyujing
baiyujing Contributor Level 2
edited September 2023 in Module Products

Dear Wolfspeed Technicians,

When I used CGD12HBXMP to drive CAB450M12XM3, I don't know what caused this situation: the input driver signal to the driver board was a differential signal of constant+2.5V, but after passing through the driver board, the output was not a high-level signal of+15V, but a square wave signal as shown in the figure. May I ask what is the reason for this? Is it a pre-set alarm signal?

Best regards.

Tek001.png


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Comments

  • Forum_Moderator
    Forum_Moderator Wolfspeed Employee - Contributor Level 4

    Thank you for your post, it has been approved and we will respond as soon as possible.

  • JHayes
    JHayes Wolfspeed Employee - Contributor Level 3

    Hi baiyujing,

    Where is this signal being measured? Can you share a picture of your test and probe setup?

    Also, how are you generating the differential signal?

  • TBhatia
    TBhatia Wolfspeed Admin - Contributor Level 5

    Hello baiyujing,

    Are you able to provide the information requested? If the problem has been resolved, can we close this discussion? Thanks!

  • baiyujing
    baiyujing Contributor Level 2

    I am now certain that the device has been damaged. You can close this issue now

  • TBhatia
    TBhatia Wolfspeed Admin - Contributor Level 5

    Once you have a new device, please start a new discussion and we would be glad to support you further. Thank you!

This discussion has been closed.