AN OP-AMP with SIMULİNK

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ERZURUM TECHNICAL UNIVERSITY
回答： Rajat Tewari 2020-7-21
Hi dears,
I tried to model an ideal op-amp in simulink but so far,I have failed.Because in my design,I also use Simscape toolbox that cause two problems.
Any matlab code(mfile) or model related to issue will be wonderful.
Thanks.
FIRST PROBLEM:
  • Steady state solve failed to converge.
  • Nonlinear solver: Linear Algebra error. Failed to solve using iteration matrix.
SECOND PROBLEM: all components and nodal across variables involved
Cannot solve for one or more variables, including dynamic variable derivatives

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Rajat Tewari
Rajat Tewari 2020-7-21
Hi,
You can realize Op-Amp circuits by directly using the Op-Amp block. Some examples for the same are given below:
  1. Op-Amp Circuit - Inverting Amplifier
  2. Finite-Gain Op-Amp
  3. Op-Amp Circuit - Differentiator
Hope this helps.

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