PSpice magnetics.lib

Core type - represent the shape of core - U or E or toroid etc. 

material is magnetic material grade ex: 3C85, 3C90 ferrite material grade from ferroxube and other

Core size represents the physical dimension of core as mentioned in data sheet.  

U93_76_30_3C90 is FERROXCUBE - U93/76/30-3C90 - FERRITE CORE, U shape, 3C90 material. Datahsheet search on Google for this part led me to http://www.farnell.com/datasheets/1595856.pdf

Also attached a testcase showing simulation using one such magnetic core for various applications.

I have installed the project. I have used the magnetics.olb. For the modification of the model with the model editor I find the advise in the application note:

The BH curve of the same magnetic core can also be plotted in Model Editor. To do so, save
the model in a PSpice library e.g. core_bh.lib and then open it using Model Editor.

How can I generate this .lib from the model contained in the magnetic.olb ?

Follow the steps:

Place appropriate part(core in this case) into schematic

Select the core symbol and do RMB>Edit PSpice Model

Tool will create a copy of Model in <designname>.lib file and open the same in model editor. If model is already present in <designname>.lib or other lib configured at design level would be opened up. In any case you get a local copy of model.

Or

launch Model Editor

Create a new lib

Select Model>Copy from

Browse to magnetics.lib under source library, Select appropriate core model from list of model present in magnetics.lib and give new name to Model and copy of same would be placed in new lib.

 Hope this helps.