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Modeling of ferrite materials

Posted Mar 1, 2011, 5:37 a.m. EST Low-Frequency Electromagnetics, Materials, Modeling Tools & Definitions, Parameters, Variables, & Functions Version 4.2 6 Replies

Matthias Richwin
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Hi all,

could anyone recommend good literature on the modeling of ferrite materials? I am especially interested in hysteresis losses.

Best regards
Matthias
6 Replies Last Post Apr 23, 2012, 1:13 p.m. EDT
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Hello Matthias Richwin

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brockap3
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Posted: 1 decade ago Jun 1, 2011, 10:27 a.m. EDT
I am wondering the same thing. Any update on this, or even with eddy current loss as the case may be? Thank you ahead of time.

Brock
I am wondering the same thing. Any update on this, or even with eddy current loss as the case may be? Thank you ahead of time. Brock
Matthias Richwin
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Posted: 1 decade ago Jun 3, 2011, 3:34 a.m. EDT
Hi,

no, nothing really useful yet. But I wasn't looking full time into the topic.

Regards
Matthias
Hi, no, nothing really useful yet. But I wasn't looking full time into the topic. Regards Matthias
brockap3
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Posted: 1 decade ago Aug 25, 2011, 12:38 p.m. EDT
Hey, I'm not sure if you ever got to answer this yourself, but Akmal on this thread www.comsol.com/community/forums/general/thread/18952/ shared an example of Hysteresis losses using the Jiles-Atherton method. I haven't been able to look into it too much, but it seems very clean and simple and it appears to give hysteresis using a time dependent simulation.

FYI, i'm pretty sure it requires 4.2 to open.

~Brock
Hey, I'm not sure if you ever got to answer this yourself, but Akmal on this thread http://www.comsol.com/community/forums/general/thread/18952/ shared an example of Hysteresis losses using the Jiles-Atherton method. I haven't been able to look into it too much, but it seems very clean and simple and it appears to give hysteresis using a time dependent simulation. FYI, i'm pretty sure it requires 4.2 to open. ~Brock
Alexander Weddemann
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Posted: 1 decade ago Sep 22, 2011, 8:32 p.m. EDT
Hi everyone,

I do not know if you are still looking for an appropriate modeling approach. However, I attached a picture of a hysteresis loop calculated with COMSOL. For more information, see

www.comsol.com/community/forums/general/thread/22468/

Kind regards,
Alex
Hi everyone, I do not know if you are still looking for an appropriate modeling approach. However, I attached a picture of a hysteresis loop calculated with COMSOL. For more information, see http://www.comsol.com/community/forums/general/thread/22468/ Kind regards, Alex

Attachments:

Dima Apter
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Posted: 1 decade ago Apr 19, 2012, 2:49 a.m. EDT

...it seems very clean and simple and it appears to give hysteresis using a time dependent simulation.


Hi Brock,

I just got the same effect - hysteresis in time dependent simulation. Do you know how COMSOL calculates this hysteresis? I cannot find any reference in COMSOL documentation.

Best regards,
Dima.

--
Dima Apter
A2Z Consulting Ltd.
www.a2z-consulting.com
[QUOTE] ...it seems very clean and simple and it appears to give hysteresis using a time dependent simulation. [/QUOTE] Hi Brock, I just got the same effect - hysteresis in time dependent simulation. Do you know how COMSOL calculates this hysteresis? I cannot find any reference in COMSOL documentation. Best regards, Dima. -- Dima Apter A2Z Consulting Ltd. www.a2z-consulting.com
brockap3
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Posted: 1 decade ago Apr 23, 2012, 1:13 p.m. EDT
It really depends on the modeling method. I only have experience with the one Jiles-Atherton, but it basically is yourself modeling it and not COMSOL, they are just mathematical equations that switch sign depending on the direction of change (in this case) of magnetic field. I'm sorry I can't get too much more in depth than that. They did tell me at one point, they are working on making it more robust and applicable in a future version, but I have no idea when that would be.
It really depends on the modeling method. I only have experience with the one Jiles-Atherton, but it basically is yourself modeling it and not COMSOL, they are just mathematical equations that switch sign depending on the direction of change (in this case) of magnetic field. I'm sorry I can't get too much more in depth than that. They did tell me at one point, they are working on making it more robust and applicable in a future version, but I have no idea when that would be.

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