Wolfspeed Power Applications Forum

Wolfspeed Technical Community:

SpeedFit™ Design Simulator

Simulate and evaluate the performance of SiC-based power circuits and determine the right SiC device in seconds.

Start a Simulation

Categories

Fault in driver board CGD12HBXMP

Options
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


Tagged:

Comments

  • Forum_Moderator
    Forum_Moderator Wolfspeed Employee - Contributor Level 5
    Options

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

  • JHayes
    JHayes Wolfspeed Employee - Contributor Level 3
    Options

    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
    Options

    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
    Options

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

  • TBhatia
    TBhatia Wolfspeed Admin - Contributor Level 5
    Options

    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.