• State Resolved
  • Locked Locked
  • Replies 3 replies
  • Answers 1 answer
  • Subscribers 48 subscribers
  • Views 268 views
  • Users 0 members are here
Support feedback
Options
Options
Similar topics

This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

INA186-Q1: PLECS Model

Manuel Woerner
Prodigy 20 points
Part Number: INA186-Q1
Other Parts Discussed in Thread: INA186

Hello together,

currently, I'm working on a new DCDC converter. For that, I would like to do some simulations in MATLAB Simulink. Therefore, I would like to ask if a working model for simulation tool "PLECS", which integrates into MATLAB Simulink, exists.

Could you offer a simulation model?

Thanks in advance!

Best regards,
Manuel Woerner

  • +1
    TI__Mastermind 29475 points

    Hello Manuel,

    We do not have a PLECS model for the INA186 or any of our devices. If this PLECs software has built in general operational-amplifiers, maybe this (configured as a differential amplifier) could be used to emulate a closed-loop current sense amplifier. You could develop the input of this "model" as shown in this video/document:

    If need be (if op amp has input Vcm restrictions), you could buffer the input with ideal voltage-controlled voltage sources that are biased to Vcm within op amps acceptable limits.

    This "op amp" could also simply be an ideal source with some gain (Aol) and the differential resistor network around it.

    Either way, this model would have be a behavioral model using ideal voltage and/or current-controlled sources.

    The most important thing to model would be the ~37kHz closed-loop BW of the INA186 if it is being used as part of a feedback network.

    If you want to pursue a basic model in place, I can assist if you can send images of your software environment looks like.

    Sincerely,

    Peter

  • 0 in reply to Peter Iliya
    Prodigy 20 points

    Hello Peter,

    in the meantime, I also started evaluating the INA186 in PSpice for TI. Unfortunately, the INA186 is not available in the TI library.

    Is it planned, that the INA186 will be also included in the library soon?

    Best regards,
    Manuel

  • 0 in reply to Manuel Woerner
    TI__Mastermind 29475 points

    Hello Manuel,

    I'm very sorry for this inconvenience. I will try to get this pushed to the library in the next few days. 

    You should still be able to add the PSPICE model to your project. I usually just add the model to the design by going to Edit Simulation Profile --> Configuration Files --> Library and the browse for the INA186Ax.lib. Then click Add to Design, Apply, and then OK.

    You will still want to add the symbol (INA186Ax.olb) to your project library by right-clicking the Library folder here:

    Sincerely,

    Peter