LaFonte Group can turn off permanent magnet without work

[hartiberlin]

P.S:

Uses: Fe3O4 is used as a black pigment and is known as C.I pigment black 11 (C.I. No.77499)

But better go to the beach and  pick it up there with a magnet and you will
have it for free, maybe not so pure, but this should still be okay, if you grind
it some more to get smaller particles.

[Paul-R]

Isn't F3O4 basically rust? could we not get a load of rust and crush
it up to get it in powder form?

Is there another item, readily available, that could be removed from
its assembly and crushed to a powder? (For instance, specialist toroid
manufacturers make their stuff in a very wide range of peculiar
materials. Would one of their products, duly powdered, serve us?).

[LarryC]

This is still a work in progress, but I decided to show it now, as an easier alternative design, but would still work as a Lafonte Switcher.

On the left top is a transformer core where a section on each end has been removed, changing the EI to an H. It came from an old PS and is 2 1/2"L X 1 3/8"W X 2 1/4"H.

The top middle is a toroid core made of band wound silicon steel, so that the lamination's can be seen on top. It does not have the slots cut yet. It is 2 1/4"D x 3/4"H. This was a toroidal transformer from All Electronics for $9. They also have a larger one for $25.

The top right is a rotor with holes to attach the North South magnets.

The bottom middle has the rough design. Basically the H core lamination's will be against the Toroid core lamination's at top and bottom 90 degrees away from the toroid slots. Then the external rotors North South magnets will produce the same effect as the internal rotors that Lafonte has. 

Regards, Larry

[hartiberlin]

Hi Larry,
looks great, but better make these designs at least 3 to 5 times bigger in size
to overcome all the losses cause  a bigger unit will put out more power
and thus the maybe 10 Watts of losses will not count anymore so big,
if you have over 100 Watts of output.
But if you only have with these smaller units around in the 10 Watts
output, then 10 Watts losses will not make your circuit go overunity.

Good luck.

Regards, Stefan.

[hartiberlin]

Isn't F3O4 basically rust? could we not get a load of rust and crush
it up to get it in powder form?

Is there another item, readily available, that could be removed from
its assembly and crushed to a powder? (For instance, specialist toroid
manufacturers make their stuff in a very wide range of peculiar
materials. Would one of their products, duly powdered, serve us?).

Yes, you could also crush a few ferrite cores to get the powder,
but the black sand from the beach collected via a magnet is probably the cheapest
source.

Here is a quote from:

http://answers.yahoo.com/question/index?qid=20061224141352AAyrywl

Red Rust is not ferromagnetic (what we typically mean with the term "Magnetic") .

Ferrous Oxide (black rust) IS magnetic.