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DC Nonlinear Model Simualtion using SDD

Question asked by CChew on Mar 14, 2017
Latest reply on Mar 30, 2017 by bafisher

Hi all,

 

I would like to come up with a DC nonlinear model of an amplifier. I calculated k1, k2, and k3 based on gain, OIP2, and OIP3 of the amp. And now, I need to simulate the output voltage equation vo=k1vi+k2vi^2+k3vi^3. I use SDD2P block to simulate(as shown in the pictures below), but I could not get similar OIP2 and OIP3 values. Does anyone know what I've done wrong in the simulation setup?

 

Thank you so much!

 

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