how to model a non-linear resistance in Hspice

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lokesh garg

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I want to model a non-linear resistance (NDR) as a voltage-controlled resistor. The problem is the current through the resistance is depends upon potential difference across the pair of nodes between which it is connected.
 

lokesh garg said:
I want to model a non-linear resistance (NDR) as a voltage-controlled resistor.
Click to expand...
It should be possible to establish the voltage dependence simply via a variable, e.g.
Vctrl = 5
Rx n1 n2 ('n*Vctrl')

lokesh garg said:
The problem is the current through the resistance .. depends upon potential difference across the pair of nodes between which it is connected.
Click to expand...
This is standard for every resistor!
 

actually we do not have the voltage values of the nodes to start with. I only have the current-voltage characteristics of a resistor. i have to insert this I-V characteristics in my resistor.....
I am attaching the I-V char. curve for your reference....
 

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