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Re: The Freau Number



Original poster: boris petkovic <petkovic7@xxxxxxxxx>



>
> The 1.7 is a somewhat elastic value, and surely will
> depend upon the coil
> family.  However, the most important feature of the
> Freau equation IMO is
> the SQRT function...

-----
Agreed.
I think John F. developed the empirical equation
L=1.7×SQRT(P) on basis of fixed BPS rate (120 BPS)
given input wallplug power.For class of the coils he
considered.
IIRC,he has said once that factor 1.7 should have be
changed to aproximately 2 for power  given in form
P=E×BPS .E stands for the energy stored in a primary
capacitor.
Not sure about that though.You should ask him
directly.

regards,
Boris