Re: [femm] how do I model a torroidal transformer ?

["robert Macy" <macy@xxxxxxxxxxxxxx>]

The torroidal transformer *is* axisymmetric, but when drawn
that way the currents go around the small circle and the
magnetic field is perpendicular to the page. I don't think
femm solves this situation. 

Instead and approximation is to draw the cross sectional
view in x-y form and set the total length to the median
circumference. 

The "crunching" of the field at the inside curve won't show
up, but it will get you started. 

- Robert -

On Mon, 25 Aug 2003 03:16:32 -0000
"Dr Mark Snoswell" <mark@xxxxxxxxxxxxxxx> wrote:
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> How do I model the field of a torroidal transformer? ...
> it's axi 
> symetric but I can't quite see hwo to model it.
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