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Location of Case Temperature sensor

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moniruzzaman
moniruzzaman Contributor Level 1
edited November 2024 in Module Products

I am working with the XM3 inverter and need information on the location of the case temperature sensor.

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  • Forum_Moderator
    Forum_Moderator Wolfspeed Employee - Contributor Level 5
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    Thank you for your post, it has been approved and we will respond as soon as possible.

  • AustinC
    AustinC Wolfspeed Admin - Contributor Level 4
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    Hi moniruzzaman,

    The case temperature sensor, RT83, is located on the control board:

    Schematic:

    Layout:

    Best Regards,

    Austin C.

    moniruzzaman
  • moniruzzaman
    moniruzzaman Contributor Level 1
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    I initially thought the case temperature sensor was measuring the switch module's case temperature, which is connected to the cold plate. However, it seems it actually measures the control board temperature. Is that correct?

  • AustinC
    AustinC Wolfspeed Admin - Contributor Level 4
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    moniruzzaman,

    Yes, there is also a temperature sensor in each power module measuring the case temperature as you described.

    Wolfspeed's Thermal Characterization Methods and Applications Application Note describes the location of the temperature sensor in the XM3 power module: https://assets.wolfspeed.com/uploads/2024/02/Wolfspeed_PRD-08376_Thermal_Characterization_Methods_and_Applications_Application_Note.pdf

    The temperatures can be read in the user interface:

    Austin C.

  • TBhatia
    TBhatia Wolfspeed Admin - Contributor Level 5
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    Hi, I hope that this answered your question. I will close this discussion for now but if you have a follow up question, please "Start a New Discussion" and we would be glad to support you further.

This discussion has been closed.