Help with OrcaD PSpice

Discussion in 'Electronics Resources' started by newton3375, Apr 29, 2006.

  1. newton3375

    Thread Starter Member

    Apr 29, 2006
    Hi all....

    Im trying to learn OrCAD PSpice using the book (third edition) by Franz J. Monssen and Im already running into problems in the first circuit example.

    Its a simple circuit with 3 resistors and 1 DC voltage source.

    There are 3 voltage probes and one current probe in the circuit also. Ill try to attach a schematic later but if anyone has this book it is the circuit on page 7.

    When I run the simulation I am gettign the following error...

    ERROR -- Voltage source and/or inductor loop involving V_PRINT9
    You may break the loop by adding a series resistance

    Does anyone here have any idea what this error means?

  2. n9352527

    AAC Fanatic!

    Oct 14, 2005
    Rather, could you save the netlist and post it here? Schematic can be misleading and parameters are not all shown. And post the error log or the output listing as well, it is just easier to diagnose that way.
  3. aac

    Active Member

    Jun 13, 2005

    I don't have the book so I don't know what the circuit looks like. However, if you have only one dc source, you have shorted it out somehow. The description of the error gives an example of what can go wrong. If you put an inductor across a non-zero dc source, the poblem can not be solved because the inductor will force the voltage across the souce to be zero. It can not be 0 and something other than zero at the same time so you get this error. Another way to get this error is to put dc sources in parallel. This is really the same error in that you will end up saying a souce has two different values and it can not be solved. I hope this helps.