jiles-atherton ferromagnetic core modeling

[Everasia]

Hi,

Is there a way to simulate a Ferromagnetic core by the use of Jiles-Atherton parameters [Ms,A,C,K] (as can be done in others SPICE-based simulation tools) ???

Thanks in advance

SalvoLM.

[OStep]

Hi,

Presently, and unfortunately, there's no support for the Jiles-atherton model. This is something that is being considered for the future. However, we do have a non-linear transformer model in which you can specify points that fit the desired B-H curve. We also have very powerful support for behavioral modeling, which you can also leverage to shape a non-linear B-H curve. 

Are the Jiles-atherton parameters something that you calculated yourself?

Thanks

[Everasia]

First of all, thank you for the prompt feedback!

Starting from measured data I have identified (simply through a nonlinear minimization routine in Matlab) the 4 parameters for the JA model that better fit the measured M-H loop. I've done all this work because I come from Orcad and I wish, for many reasons, to move to Multisim.

I know, I could enter the hysteresis loop, point by point, inside the nonlinear transformer model (and, at this point,  this is what I probably will do). but I'm not shure it's the best way to achieve the best accuracy (maybe I'm wrong but it seems that you are limited to 99 points).

In any case, I thought that Multisim has to deal somehow with this kind of model because it has become a standard "de facto" in the field of numerical simulation of ferromagnetic materials. I hope this will be soon implemented!

Thank you again.

SalvoLM.