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PSPICE model for part Number EPM3-1200-0017D

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.

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.

  • ZMiller
    ZMiller Wolfspeed Employee - Contributor Level 3

    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

    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

    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

    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

    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

    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.