Community PCB Design & IC Packaging (Allegro X) PSpice Invalid expression in measurement function

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Invalid expression in measurement function

MujikaJulen

Hey! Im trying to get the value of one signal when the other signal reaches 0.8V. The expression I had written is the following:

YatX(V(VALIM),XatNthY(V(PWR_FAIL),0.8,1))

Maybe this isn't the correct way to make this work. I will add a simulation capture to explain better the situation.

My objective is to make a function to obtain those 22.424V when V(PWR_FAIL) reaches 0.8V. (This will be applied for Monte Carlo analysis, thats why I would rather have a function than doing it manually with a cursor) 

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  • +1

    As i understand you are trying to feed the X value using the YatNthX measurement function but somehow Pspice is not reading that value.
    I am not sure if using Watch1 component from PSpice special library will work for you ? Once the simulation stops at a particular point, you can do the measurements at that X value.

    It is like a trigger function where if the measurement results move outside of the specified bounds, PSpice A/D pauses the simulation

    Enter values in the LO and HI properties columns to define the lower and upper bounds respectively
    In the ANALYSIS property column, type DC, AC, or TRAN (transient) for the type of analysis results you want to see

Reply
  • +1

    As i understand you are trying to feed the X value using the YatNthX measurement function but somehow Pspice is not reading that value.
    I am not sure if using Watch1 component from PSpice special library will work for you ? Once the simulation stops at a particular point, you can do the measurements at that X value.

    It is like a trigger function where if the measurement results move outside of the specified bounds, PSpice A/D pauses the simulation

    Enter values in the LO and HI properties columns to define the lower and upper bounds respectively
    In the ANALYSIS property column, type DC, AC, or TRAN (transient) for the type of analysis results you want to see

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