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

- To: femm@yahoogroups.com
- Subject: Re: [femm] how do I model a torroidal transformer ?
- From: "robert Macy" <macy@california.com>
- Date: Tue, 26 Aug 2003 09:06:05 -0700
- In-reply-to: <000001c36b66$b8853640$8d00a8c0@Mark>

    Whoa, Nellie! Big typo in my email. be sure to look at
    the sample programs sent later, especially the one that
    uses "sheet" current

    But I would have set the depth more like pi/4*0.75 inch to
    compensate for the circular cross section of the torroid.

    - Robert -

    On Tue, 26 Aug 2003 09:42:21 +0930
    "Mark Snoswell" <mark@cgCharacter.com> wrote:
    > Excellent! ... I should of thought of that. That’s all
    > the hint I need
    > to do it -- I think.
    >
    > Thanks :)
    >
    >
    > |From: robert Macy [mailto:macy@california.com]
    >
    > |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@cgCharacter.com> wrote:
    >
    > |>
    > |> 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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- References:
  - RE: [femm] how do I model a torroidal transformer ?
    - From: "Mark Snoswell" <mark@cgCharacter.com>

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