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

Definitions in the spice model

Options
123
123 Contributor Level 1
edited August 12 in Discrete Products

The following code exists in the spice model of the C3M0350120D product:

R_g g1 g2 {Rgint}

RG g ga 31.083m

Lg ga g2 6.8245n

I would like to know the physical meanings of what R_g, RG, and Lg stand for, respectively. the datasheet gives an explanation of the R_g as an internal gate resistor, so please ask for the exact Which part of the resistor is it?

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.

  • Mhusain
    Mhusain Wolfspeed Employee - Contributor Level 2
    Options

    Hello,

    Here are the physical meanings of the components you asked about:

    • R_g: Internal gate resistance (related to gate runners)
    • RG: Lumped resistance from gate leads and bond wires
    • Lg: Lumped inductance from gate leads and bond wires

    I hope this answers your question! If you have any further queries, please feel free to ask.

    Regards

  • TBhatia
    TBhatia Wolfspeed Admin - Contributor Level 5
    Options

    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.