How to properly use IGBT level 2

Daryl Biron
Daryl Biron Altair Community Member
edited September 2023 in Community Q&A

Hello,

I'm doing research in gate drive control and will be using an IGBT.  I would like to set up a simulation to control the dic/dt and the dvce/dt of the IGBT.  Using the level 2 IGBT I don't appear to get typical switching characteristics unless I include a current source and diode as in the example.  Are there limitations as to what needs to be included in the simulation to get the proper switching characteristics? 

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Answers

  • NikosDimitrakopoulos
    NikosDimitrakopoulos
    Altair Employee
    edited September 2023

    Hi @Daryl Biron,

    Thanks for the question!

    I assume you're referring to the "test - IGBT level-2" example shown here.

    This example serves as a test circuit for parameterizing an IGBT LvL 2 model based on the device's datasheet. It can also be used to compare switching characteristics with the vendor's SPICE model (if available) and to calibrate your LvL 2 model for more accurate transient behavior.

    To address your question, there are no limitations on the topologies where the LvL 2 model can be applied. You don't need to add diodes or a current source for it to work.

    For more insights into defining, driving and calibrating your IGBT LvL2 model, you can follow our tutorial on this subject.

    I should note that the advantage of using this model over the SPICE model is that you can leverage the robustness of the PSIM engine when it comes to convergence. The SPICE model is limited to running with the integrated LTspice and Hyperspice engines.

     

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