How to do a PSPICE large signal analysis?

Discussion in 'Homework Help' started by bumclouds, Jun 4, 2009.

  1. bumclouds

    Thread Starter Active Member

    May 18, 2008
    82
    0
    Hey guys,

    I've had an assignment which asks me to design a circuit in PSPICE, fabricate the real thing and test it.

    In the assignment instructions it says this:

    · Complete PSPICE simulation, including the following (30 %):
    1. DC analysis
    2. Frequency response (using .ac)
    3. Large signal analysis (using .tran) including distortion analysis.

    DC analysis I have under control. The same with frequency response.

    Large signal analysis. What is this? And how to I simulate this in PSPICE?

    Andrew



    PS: If you're interested: here is my schematic.

    [​IMG]



    I'm not sure if this is right, but I did a "transient response" using the default settings and the following graph was produced:

    [​IMG]


    Is the transient a single impulse? Is it a step? What is it?
     
    Last edited: Jun 4, 2009
  2. bumclouds

    Thread Starter Active Member

    May 18, 2008
    82
    0
    Sorry to double post.. But I think I may have it.

    I used VPULSE as a source this time. With:
    TD = 0
    TR = 5ns
    V1 = 0
    V2 = 1V
    everything else blank.

    And the output plot is:

    [​IMG]

    But is that "Large Signal" and is that what they're after do you think?
     
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