Re: [TCML] Flat strip primary inductance

[johnbrooks@xxxxxxxxxxx]

And could you do a Secondary to go w/this Primary?
THANKS
j
ah,what the heck its Christmas,how about a 
Torrid and Cap also?

On Sun, 21 Dec 2008 19:37:57 +0000, "Paul Nicholson"
<tcml87@xxxxxxxxxxx> said:
> Here is a model coil - a ribbon primary, and some results.
> 
> Plane of ribbon: vertical;
> Inner diam: 55.88 cm;
> Turns: 4;
> Pitch: 0.18128 cm;
> Outer diam: 55.88 + 0.18128 * 4 * 2 cm;
> Ribbon thickness: 0.1 cm;
> Ribbon width: 5.08 cm;
> 
> The coil is modeled using a number of equally spaced filaments
> each having a diameter equal to that of the ribbon thickness.
> 
> filaments   L uH
> 1           29.46
> 2           19.87
> 3           18.29
> 4           17.74
> 5           17.48
> 6           17.34
> 7           17.25
> 8           17.20
> 9           17.16
> 10          17.13
> 12          17.10
> 14          17.08
> 18          17.06
> 
> As a by-product we get the current distribution across the
> width of the ribbon.  For 18 filaments numbered 1..18, the
> percentage current down each filament is:-
> 
>    1: 18.33
>    2: 5.52
>    3: 4.57
>    4: 4.16
>    5: 3.75
>    6: 3.54
>    7: 3.46
>    8: 3.37
>    9: 3.30
>   10: 3.30
>   11: 3.37
>   12: 3.46
>   13: 3.54
>   14: 3.75
>   15: 4.16
>   16: 4.57
>   17: 5.52
>   18: 18.33
> 
> The current distribution is symmetric, but that's only because
> this is a vertical ribbon.
> 
> Having modeled the ribbon coil in this way, there is then the
> question of how to represent the coil during calculations of
> M with other coils.  I was thinking of representing it as a
> single filament, the position of which corresponds to the
> 'center of mass' of the current distribution.  Question is,
> would that be sufficient for typical primary-secondary M
> calculations?
> --
> Paul Nicholson
> --
> 
> _______________________________________________
> Tesla mailing list
> Tesla@xxxxxxxxxxxxxx
> http://www.pupman.com/mailman/listinfo/tesla
-- 
  
  johnbrooks@xxxxxxxxxxx

-- 
http://www.fastmail.fm - Does exactly what it says on the tin

_______________________________________________
Tesla mailing list
Tesla@xxxxxxxxxxxxxx
http://www.pupman.com/mailman/listinfo/tesla