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OrCAD simulation help

  1. Feb 18, 2017 #1
    I have a basic circuit with a diode, resistor, and a voltage source. I am getting the following error when trying to change the X Axis variable to Vd (diode voltage):

    ERROR(ORPROBE-3217): Only 1 expression allowed for the X variable.

    I have set three different temperatures in Temperature (Sweep). Default variable for X Axis is the voltage source, and when trying to change it to V(D1) which is a diode voltage, it gives the above error.

    My question is how to get diode characteristic (or any other characteristic) Id=f(Vd) when multiple temperatures are used in the same simulation?
     

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  2. jcsd
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