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Question on winding toroids...

Discussion in 'Electronic Design' started by Dave, Jun 8, 2007.

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  1. Dave

    Dave Guest

    Does it matter what size wire you use when winding toroids?

    Thanks,

    Dave
     
  2. D from BC

    D from BC Guest

    Depends...but mostly yes..
    Reasons:
    heating due to DC resistance
    heating due to AC resistance (skin effect, proximity effect)
    limited window area
    Resonant frequency,Q
    To stay within single layer, if needed.
    D from BC
     
  3. default

    default Guest

    Of course.
     
  4. Dave

    Dave Guest

    Ahh. Okay, so if my primary concern is resonant frequency and higher Q,
    would larger guage wire help these? I'm talking about 24 guage rather than
    32, or 32 rather than 36. And this would be in a receiver.

    Oh, and what is meant by limited window area?

    Thanks,

    Dave
     
  5. default

    default Guest

    Larger wire means better Q, but multiple wires may be better than a
    single solid wire.

    Limited window is the physical space available for wire.
     
  6. Eeyore

    Eeyore Guest

    In the case of a toroid, the critical issue usually being the centre hole.

    Graham
     
  7. Dave

    Dave Guest

    Ahh. Thank you. That I understand, and it is definetly an issue in this
    case.

    Dave
     
  8. As opposed to the curvature of space-time limiting the outside part?


    Best regards,
    Spehro Pefhany
     

  9. We all know how difficult that is to deal with. ;)


    --
    Service to my country? Been there, Done that, and I've got my DD214 to
    prove it.
    Member of DAV #85.

    Michael A. Terrell
    Central Florida
     
  10. Paul Mathews

    Paul Mathews Guest

    Time to read up on 'skin effect' and 'proximity effect'. While your at
    it, check out 'Litz wire'.
    Paul Mathews
     
  11. Dave

    Dave Guest

    Thank you, Paul. I will check those out.

    And thank you, D from BC, for the fundamental cut to the chase. For some
    reason my news server didn't pick up your second reply, only your first
    reply. I suspected large wire meant higher Q, and appreciate your
    confirmation of that.

    I've got some research to do, and now know more or less where to look. Much
    appreciated.

    Dave
     
  12. Eeyore

    Eeyore Guest

    Depends if you need to fit it inside an enclosure mainly. ;~)

    Graham
     
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