Thane Heins BI-TOROID TRANSFORMER

[CRANKYpants]

Out of curiosity I did a price inquiry at a local laser cutting company. I attached the info I sent them. I'll post back with their answer.

DEAR BROLI,

YOUR SECONDARY OUTER RING OUGHT TO BE AT LEAST 2X OF THE PRIMARY CORE LEG.
I WOULD CHANGE YOUR DIMENSIONS TO 10 MM FOR THE PRIMARY AND 30 MM FOR THE SECONDARY.

CHEERS
T

PS
PLEASE SEND ME THE $ QUOTE WHEN YOU GET IT TO: thane_heins@yahoo.ca - Thanks

[broli]

DEAR BROLI,

YOUR SECONDARY OUTER RING OUGHT TO BE AT LEAST 2X OF THE PRIMARY CORE LEG.
I WOULD CHANGE YOUR DIMENSIONS TO 10 MM FOR THE PRIMARY AND 30 MM FOR THE SECONDARY.

CHEERS
T

PS
PLEASE SEND ME THE $ QUOTE WHEN YOU GET IT TO: thane_heins@yahoo.ca - Thanks

I just received a slim reply which basiclly stated that I should come down with a sample for them to make sure it's laser cuttable. This makes me assume they either don't know what silicon steel is or they don't have it in stock. So if they indeed can cut it do I need to supply my own raw plate material? I'm going to ask this and see.

[SchubertReijiMaigo]

@ Broli: I have read (in youtube) that the primary must be near saturation (like a conventional transformer ?) You can use the "Boucherot" formula to caculate the frequency number of turn and dimension of the section of the magnetic circuit:

U=4.44*N*F*(S/10^4)*B

So: U is voltage (in volts), 4.44 is the form factor( in this case beautiful sinosuidals waves...) N is the number of primary spire, F is the frequency (in Hertz) S is the section of the magnetic circuit in cm^2 (square centimeter), and B (in Tesla) is the maximum induction of your magnteic material (saturation point) in Tesla...
This not perfect but you can calculate reliably your transfomer characteristics with this formula.

Ex: Bmax = 1 Tesla, F = 50 hz, S = 10 cm^2, N = 1000 turns.
U = 4.44*1000*50*(10/10^4)*1
U = 222 Volts...

With this your primary work nearly in saturation point like Thane Heins in some video in youtube.
Hope it helps.

[Myzter]

I just started following this area of research..
and read this article which kind of looked similar with the use of a small gap.

Tunable, Stretchable Optical Materials
http://www.technologyreview.com/energy/26482/?p1=Headlines

Instead of building a metamaterial on rigid materials, the Caltech researchers made an array of silver resonators on a stretchy polymer film. These resonators "ring" when struck with a particular wavelength of light, and act as a strong filter for that wavelength. Each resonator is shaped like a "C" next to an "l"; the distance between the tip of the "C" and the "l," about 50 nanometers in the test devices, determines the wavelength of light at which it will resonate.

[SchubertReijiMaigo]

Maybe a good stuff for solar panel  (resonate with some frequency of light or heat (Infrared)) but not for the Thane Heins principe. The principe look like more a "magnetic diode" that enable power flowing from primary to secondaries but not the back power of the secondaries to primary...