The Designer's Guide Community Forum

The Designer's Guide Community Forum
https://designers-guide.org/forum/YaBB.pl
Modeling >> Passive Devices >> Temperature dependence of Inductor resistance
https://designers-guide.org/forum/YaBB.pl?num=1093364580

Message started by mjh on Aug 24^th, 2004, 9:23am

Title: Temperature dependence of Inductor resistance
Post by mjh on Aug 24^th, 2004, 9:23am

Is there any way to add temperature dependence to the inductor resistance created by the Spectre Inductor Model ? I have created many inductor models with the Spectre Inductor Modeler but now need to modify the temperature dependence of the resistance. Thanks. ::)

Title: Re: Temperature dependence of Inductor resistance
Post by Andrew Beckett on Aug 24^th, 2004, 9:39pm

Simply make r a function of the parameter "temp". For example (for convenience I put the inductor inside an inline subckt - didn't pass the temperature dependent parameters for inductance to avoid it getting cluttered in this example):

Code:

inline subckt myind (n1 n2)
parameters r=0 l=0 rtc1=0 rtc2=0
myind (n1 n2) inductor l=l r=r*(1+rtc1*(temp-tnom)+rtc2*((temp-tnom)**2))
ends myind

l1 (ind 0) myind l=1u r=10 rtc1=0.1

Regards,

Andrew.