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Sci.Electronics.Basics -> Coil wrapping ?
There are 3 messages in this thread.
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Author: mowhoongDate: 10:47 06-09-07
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I had seen a coil wrapped in twin wire. If I design a coil with 1000
T, I use two wire together,
so it mean that I only wrapp 500 T, hence it save my time and
work.Dear members do you have any comment ? Thanks
Regards
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Author: Tim WescottDate: 11:36 06-09-07
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mowhoong wrote:
> I had seen a coil wrapped in twin wire. If I design a coil with 1000
> T, I use two wire together,
> so it mean that I only wrapp 500 T, hence it save my time and
> work.Dear members do you have any comment ? Thanks
> Regards
>
Normally this is done either to make a transmission line transformer* or
to make a sort of high current capacity litz wire**. Doing what you're
suggesting would result in excess inter-coil capacity which would almost
certainly be a Bad Thing in all but very specialized transformers.
* Do a web search, and consider that a couple of dozen turns on such a
transformer would be a lot.
** "Litzendraght" or something like that -- do a web search.
--
Tim Wescott
Wescott Design Services
http://www.wescottdesign.com
Do you need to implement control loops in software?
"Applied Control Theory for Embedded Systems" gives you just what it says.
See details at http://www.wescottdesign.com/actfes/actfes.html
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Author: defaultDate: 18:55 06-09-07
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On Thu, 06 Sep 2007 07:47:54 -0700, mowhoong <mowhoong@hotmail.com>
wrote:
>I had seen a coil wrapped in twin wire. If I design a coil with 1000
>T, I use two wire together,
>so it mean that I only wrapp 500 T, hence it save my time and
>work.Dear members do you have any comment ? Thanks
>Regards
Frequently it is harder to bifilar wind and keep it neat than wind
single strands.
You could wind bifilar then connect the start of one winding to the
finish of the other and save time - but it doesn't save a lot of time
and there could be other considerations like capacitance between turns
or layers.
Build a jig or motorized winder and you will almost always save time.
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