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parameters as an expression

SolarStudent
Hi Guys,

Hopefully this is in the correct forum.  Using Capture/PSpice to simulate the dynamic response of solar cells from changing radiation conditions.

I want to set the saturation current of a standard diode to equal an expression, eg. IS = {(a*b) + c}

I've setup the values of a,b,c as parameters for the sub-circuit.  Have gone into "edit model" for the diode and attempted to write the expression in "value" cell for the IS property.  However I get this message

 The parameters made editable cannot have NULL values.  Please enter a valid value in the field.

 I have had a go at making a new model (based on the standard diode).  But the field clears before I can input the full expression.

 So far all the instructions for modifying "models" are for when you are just using PSpice code, not Capture.

 
Thanks in advance

Matt
Using Capture/PSpice lite - v16.5.13D
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  • SolarStudent
    Excellent, I think I got it to work. I doesn't list Diode_Cell_2, but it does list "idealcell.lib" which I think contains the information for the modified diode model. Cheers Alokt
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  • SolarStudent
    Excellent, I think I got it to work. I doesn't list Diode_Cell_2, but it does list "idealcell.lib" which I think contains the information for the modified diode model. Cheers Alokt
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