Problems with AC simulation in OptiSPICE 5.2 - Optiwave

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- September 25, 2021 at 8:45 am #79740
  
  Sylwia Kojtek
  Participant
  
  I have a problem with performing AC analysis in a set with an account amplifier? I have tried two ways to do this analysis:
  1) Setting the Vdc3 value to zero, on Vac1 the value of 1V – while you pass the same zero, it sets the Q2 transistor and the R2 resistor.
  2) The commands to the netlist Vdc3 SIG5 0 2.5 AC 1 – in this case, the same reset is also made on the Q2 transistor and the R2 resistors.
  I am asking for help because I do not know what I am doing wrong.
- October 22, 2021 at 2:19 pm #80393
  
  Wolfgang McKee
  Member
  
  Hello Sylwia,
  
  I am not sure I understand your approach correctly. There might be a convergence issue.
  Can you share your file so that I can take a close look?
  
  Best,
  Saurabh Bedi.
- October 22, 2021 at 2:19 pm #82997
  
  Wolfgang McKee
  Member
  
  Hello Sylwia,
  
  I am not sure I understand your approach correctly. There might be a convergence issue.
  Can you share your file so that I can take a close look?
  
  Best,
  Saurabh Bedi.
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