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Changing the FET model parameters dynamically during Transient Simulation

Quantum7

For example, I have some .scs file which has the following some generic model:

section typ
parameters
...
+ mainfet_rdsw = 5000
...
endsection typ

Now in the above model, lets say at some point of time during transient simulation I want to change that mainfet_rdsw to 7000, how can I do this?

I know I can list parameters to be changed in a file and use it as paramset=pset in "additional options" and I can change things like L,W or component values during transient, however; what I am trying to do is a little bit different thing and I wanted to know what should I do in that case?

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  • Andrew Beckett

    This is just a global parameter, so you should be able to change it via the dynamic parameters in transient as before. If it's only this parameter you want to change, you can check the "dynamic parameters" checkbox on the transient form, specify mainfet_rdsw as the Parameter name, and then enter the parameter vector such that this is 5000 at time 0 and 7000 at some later time. You only need the paramset if you want to vary several parameters during the transient.

    I just checked this with a similar setup using gpdk090 models and it worked fine.

    Regards,

    Andrew.

Reply
  • Andrew Beckett

    This is just a global parameter, so you should be able to change it via the dynamic parameters in transient as before. If it's only this parameter you want to change, you can check the "dynamic parameters" checkbox on the transient form, specify mainfet_rdsw as the Parameter name, and then enter the parameter vector such that this is 5000 at time 0 and 7000 at some later time. You only need the paramset if you want to vary several parameters during the transient.

    I just checked this with a similar setup using gpdk090 models and it worked fine.

    Regards,

    Andrew.

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