Simulation Problem with PSPICE

[sinansabahm]

Hi All,

I am using PSPICE to get the nonlinear Memristor model simulation. A part of the SPICE Model is as follows:

Gxpos 0 x value={stp(-V(x)+lim_max)*stp(V(plus,minus))*((V(Plus,Minus))^q)*f(V(x),I(plus,minus),p)}
Gxneg x 0 value={stp(V(x)-lim_min)*stp(V(minus,plus))*((V(Plus,Minus))^q)*f(V(x),I(plus,minus),p)}
Cx x 0 0.00008 IC=0.15
Raux x 0 0.01T

Gmem plus minus value={(((V(x)^n))*b*sinh(a*V(plus,minus))+c*(exp(g*V(plus,minus))-1))}

.func f(x,i,p)={1-(x-stp(-i))^(2*p)}

But when running ,I get an error "Missing or invalid expression" not recognizing I(plus,minus) ,which is the current of the VCCS Gmem.
So how to solve such problem? Thanks

 

[mvaseem]

Pspice does not support directly referencing behavioral devices currents inside other behavioral sources.
You would need to add dummy voltage source (zero volt) in series with Gmem and refer it's current inside Gxpos ,Gxneg.