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PSpice simulation vs temperature

  1. May 9, 2006 #1
    I am trying to define the sensitivity of a piezoresistance as a function of temperature using PARAMETERS. The equation is: {S=S0(1-TCS(temp-25))}.
    The problem is that "temp" doesn't change during a Temperature Sweep, but I don't have any error either. Could you help me?
     
    Last edited: May 9, 2006
  2. jcsd
  3. May 13, 2006 #2
    last time I used spice (some time ago) i was supposed to define the limits for the temperature sweep in some file. maybe that's what's missing...
     
  4. May 14, 2006 #3
    execusme, I will not answer you but I have a qustion


    .....what is the piezoresistance
     
  5. Feb 17, 2010 #4
    Can any one tell me how to use pspice simulation software for temperature analysis for resistor.
     
  6. Feb 18, 2010 #5
    Piezoresistance is resistance that changes with stress. It's commonly used in IC based pressure sensors.

    For the formula, I don't know of a direct call to pull up "temp" during a sim, but you can build a thermistor or temperature sensor model and use it. The extended call for a resistor is:

    Rxxx Node1 Node2 Value TC=???

    To make yourself a thermistor,
    .subckt THERMISTOR TH1 TH2
    R1 TH1 TH2 1K TC=.02
    .ends THERMISTOR

    Best of luck,

    - Mike
     
    Last edited: Feb 18, 2010
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