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Re: Pri-Sec Phasing
---------- Forwarded message ----------
Date: Wed, 08 Oct 1997 10:34:40 +0000
From: Greg Leyh <lod-at-pacbell-dot-net>
To: Tesla List <tesla-at-pupman-dot-com>
Subject: Re: Pri-Sec Phasing
Malcolm wrote:
> k for that coil *as a whole* is 0.12. As we know, coupling to just
> the bottom is significantly higher than that figure suggests. Imagine
> if the few secondary turns I measured increased in diameter until
> they matched the primary diameter. If you are still not convinced, I
> will be happy to wind a 5/10/20 turn or whatever coil that matches
> primary height and whatever diameter you choose. The same rules are
> obeyed in cored coils, even with significant air gaps (which is one
> reason I can use turns ratio in flyback (twin choke) supplies to
> calculate switch and diode burdens). I don't know what more I can say
> really.
> In answer to the last bit, significant phase shift does occur but
> only progressively as one travels up the resonator winding. The
> voltages are and have to be totally in phase at the base.
So, do you see the TC sec coil as a sort of 'continuous' magnifier,
only without a sharp transition between the secondary and tertiary?
How much phase shift occurs between the pri and sec (as a whole)
in a magnifier? Has anyone ever measured it?
-GL