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

How to modify the model to make it compatible with PSPICE?

Options
Jason_Yan
Jason_Yan Contributor Level 1
in Discrete Products

Recently, I encountered an issue with compatibility between the spice model and Pspice, and the error message is as follows:

------------------------------$
ERROR(ORPSIM-16015): Unknown parameter.

  • 8.4m
    X_U1.R_Ls1 N01518 X_U1.sv 100
    X_U1.Ls2 0 X_U1.sv 2.3n Rser
    ------------------------$
    ERROR(ORPSIM-16015): Unknown parameter.
  • 0.73m
    X_U1.R_Ls2 0 X_U1.sv 100
    X_U1.Rv X_U1.sv X_U1.s 100
    X_U1.Lv X_U1.sv X_U1.s 0.7n Rser
    ----------------------------$
    ERROR(ORPSIM-16015): Unknown parameter.
  • 0
    X_U1.R_gg X_U1.g1 X_U1.s 1E6
    X_U1.R_g X_U1.g1 X_U1.g2 {Rgint}
    X_U1.Lg N01321 X_U1.g2 7.7n Rser
    ----------------------------$
    ERROR(ORPSIM-16015): Unknown parameter.
  • 13.8048m
    X_U1.R_Lg N01321 X_U1.g2 100
    X_U1.Ld N01368 X_U1.d3 4.366n Rser
    ------------------------------$
    ERROR(ORPSIM-16015): Unknown parameter.

The model I am currently using is C3M0016120K. According to previous posts, this seems to be related to the differences in statements between LTspiceand Pspice. Can you provide a compatible model? Thank you.

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.

  • Jason_Yan
    Jason_Yan Contributor Level 1
    Options
    C3M0016120K_pspice.lib




    I modified the model to remove statements that are not supported by pspice, such as Rser. At present, it can be preliminarily worked.

  • Jason_Yan
    Jason_Yan Contributor Level 1
    Options

    Are there professionals who can provide official models or validate the model in the above answer😁

  • Mhusain
    Mhusain Wolfspeed Employee - Contributor Level 2
    Options

    Hello,

    I’m glad to hear that your changes to the model were successful! I wanted to let you know that I’ve also created a new PSpice-compatible model for you, which I've shared here. I’ve tested it under various conditions (Output characteristics and body-diode characteristics at 25C), and I’ve attached pictures below for your reference.

    Output characteristics.PNG
    Bodydiode characteristics.PNG
    C3M0016120K.lib

    Please feel free to reach out if you have any questions.

    Thank you!

  • Jason_Yan
    Jason_Yan Contributor Level 1
    Options

    Thank you very much for your help. Also, I would like to know how to operate if I want to observe currents in its subcircuits, such as Cgd, Cds, and currents on channels?

  • Mhusain
    Mhusain Wolfspeed Employee - Contributor Level 2
    Options

    Hello,
    To observe the currents and voltages of the subcircuit, you will need to select "All" for Voltage and Currents drop down boxes in the Data Collection tab of simulation settings as shown in the picture below.

    image.png
    image.png

    These internal Voltages and currents can then be selected from the "Add trace" selection box as shown in the picture above.

    Please feel free to reach out if you have any other questions.
    Regards

Sign In or Register to comment.