Thursday, April 11, 2013

Suggestions for OpAmp model

I have suggestions for the OpAmp model to use for HW10 if you have problems.

Try using "UniversalOpamp2" instead of LT1368.
The default parameters for this model is sufficient for our simulation.
The ideal opamp seems to not work well for many people.

If the design is done correctly, there should be no convergence problems, and no need for initial conditions.

Beom


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2 comments:

  1. PrasantaApril 11, 2013 at 1:26 PM

    Thanks Beom! could you shed some light on how to design the compensator ? Placing a pole at fs is easy, but i don't understand how to get the other two conditions to work.
    Thanks,
    Prasanta

    ReplyDelete
  2. BeomApril 11, 2013 at 5:45 PM

    Actually, I started off of the PWM slope constraint. Then I could decide two values.

    ReplyDelete

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