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PSPICE model for part Number EPM3-1200-0017D

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Kaviarasu
Kaviarasu Contributor Level 1
edited October 2023 in Bare Die Products

Hi, I am kaviarasu and performing EMI simulation using ANSYS tool. I am using the Mosfet with Part Number EPM3-1200-0017D for automotive applications. In website only LTspice model is available, where ANSYS won't support for analysis and need only PSPICE model. Kindly I request you to share the PSPICE Model for part number EPM3-1200-0017D.

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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.

  • ZMiller
    ZMiller Wolfspeed Employee - Contributor Level 3
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    Hi,

    This model is listed under LTspice as this is our primary SPICE tool; however, you should be able to import this model as PSpice model as its syntactically compatible with the two tools. Please let me know if you have any trouble.

    Thanks,

    Zack

  • Kaviarasu
    Kaviarasu Contributor Level 1
    edited August 2023
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    Hi,

    Whatever the LT spice model available in website is Encrypted model. ANSYS Designer will accept only the unencrypted PSPICE model not the encrypted model. Please do the needful.

    Regards,

    Kaviarasu

  • ZMiller
    ZMiller Wolfspeed Employee - Contributor Level 3
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    Hi,

    That's interesting - we don't encrypt any of the models that we make available on the webpage. I went and downloaded the models from our webpage to verify and attached the requested die model here. Please let me know if works!

    EPM3-1200-0017D.lib

    Thanks,

    Zack

  • Kaviarasu
    Kaviarasu Contributor Level 1
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    Hi,

    I have attached a document for your reference. Please help me to resolve the issue.

    WAVEFORM ANALYSIS FOR MOSFET.docx

    Regards,

    Kaviarasu

  • ZMiller
    ZMiller Wolfspeed Employee - Contributor Level 3
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    Hi Kaviarasu,

    The error that you are receiving is a result of Twin Builder not processing the ddt() function that calculates the time-varying voltage in the non-linear capacitors for the device. There are a few ways to handle this but I recommend replacing the current sources (G11/G12) with the linearized capacitance that represents Cgd and Cds, respectively. For this device, you can use 204pF for Cds and 14pF for Cgd.

    I hope this helps.

    Thanks,

    Zack

  • 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.