Hi,
I have a problem with magnetic cores.
There are two kinds of magnetic cores in PSpice library.
The left one is for ferrite cores, and the right one is for the else cores (orthonol, supermalloy, etc)
I have used the following method to simulate the saturable reactors: http://www.flowcad.de/AN/FlowCAD_AN_PSpice_BH_Curve.pdf
It works for ferrite cores, but the else cores do not work well.
Also, I cannot find the "coupling" parameter for the second kind of cores.
I've seen another way to couple magnetic core with inductor by setting "implemantation path". However I cannot find the detailed settings.
Thanks!!
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Hi,
Could you attached the images again? I think you wanted to show something, but they are not showed.
In relation to the "implementation path", I do not know any way to do that. The only way to couple a magnetic core is using the part reference of particular inductors and the magnetic core.
Regards
Hi,
Can you see the pic now?
It's basically the symbols of two different magnetic cores, one is the normal symbol as shown in the tutorial I have linked, the other one is like the shape of a B-H curve (you can see it if you insert an orthonol core).
Hello,
I am not able to see the images, but I think I know what you mean:
As you have mentioned, I am also not able to find the COUPLING parameter for the orthonol core. Let me investigate about this.
On the other hand, you mention that the simulation is not working well for both of them. Could you specify this? I have done a simulation and it has worked:
Regards
Hello,
Just for completing the previous message, the reason for difference is that they use different core models - magnetic.olb uses level 2 jiles atherton model and cores.olb uses level 3 tabrizi (spice plus) model.Details of both the models are available in pspice reference guide under section Inductor coupling and magnetic cores.
The "K" part and level 2 models are used for coupling whereas level 3 core models are used for calculating core losses.
Regards,
Hi,
Thank you for your response. You've got my idea. It's good to know the differences between these cores, and I'll read the refernce guide.
As shown in your figures, B-H curve is totally fine. However if I check the B&H curves corresponding to time, there is a big difference between ferrite cores and other cores. Also if I couple an inductor with a magnetic core as a saturable reactor, and apply it to a magnetic pulse compression circuit, the one using other cores cannot work well, while the one using ferrite cores performs normally.
I forgot to mention: the green curve is B, the red curve is H.
Hello,
Would it be possible to get the design in order to simulate it and analyze it at my end? PSpice@flowcad.de
Regards