What am I doing wrong?

Discussion in 'The Projects Forum' started by jean28, Oct 21, 2012.

  1. jean28

    Thread Starter Member

    Sep 5, 2012
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    I have built the following circuit:

    http://i1226.photobucket.com/albums/ee410/jean28x/pspicemodel.jpg

    However, when I try to simulate it, I get an error that says "Simulation aborted because there are errors during netlisting. Please refer to the sessions log."

    What am I doing wrong? I'm new with PSPice so i'm not sure what's wrong.

    Thanks.
     
  2. Ron H

    AAC Fanatic!

    Apr 14, 2005
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    You have no power supply, and the op amp output is shorted to the positive power supply pin.
    When you get these two items fixed, note that, since the input is referenced to zero volts, you will need positive and negative power supplies.
     
  3. jean28

    Thread Starter Member

    Sep 5, 2012
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    0
    Okay...could you help me with this? Which power supply should I put and where?
     
  4. Ron H

    AAC Fanatic!

    Apr 14, 2005
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    Do it like this (see attachment).
    Be aware that I don't have Pspice. if you want simulation help here, most members use LTspice.
     
  5. jean28

    Thread Starter Member

    Sep 5, 2012
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    I still get the same error even after the modifications, but thanks a lot for trying to help.
     
  6. Ron H

    AAC Fanatic!

    Apr 14, 2005
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    What does the sessions log say?

    Also, post your new schematic. You may still have errors.
     
  7. jean28

    Thread Starter Member

    Sep 5, 2012
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    This is the error I get:

     
  8. Ron H

    AAC Fanatic!

    Apr 14, 2005
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    OK, start by fixing these errors, then come back with results and questions.
     
  9. atferrari

    AAC Fanatic!

    Jan 6, 2004
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    Why not to start afresh and see what comes out?

    It will take less than 5 minutes.
     
  10. jean28

    Thread Starter Member

    Sep 5, 2012
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    I started fresh, fixed a few things, and then got this new error:

    http://i1226.photobucket.com/albums/ee410/jean28x/pspicerenewed.jpg
     
  11. Ron H

    AAC Fanatic!

    Apr 14, 2005
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    Is V1 a VAC or VSRC source? The syntax for an AC sweep is different or each type. See Chapter 10 in the User Guide.
    I would advise you not to try the noise analysis until AFTER you get the AC analysis running. Debug one error at a time.
     
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