HOG01 Hartmann Orthogonal Generator

[hartiberlin]

Hi All,
here is a new device, that I came up with.

It is using 2 coils at 90 degrees, that is why I call
it Hartmann Orthogonal Generator (HOG).

I was inspired by the free bicycle light system over here:
http://www.freelights.co.uk/how.html

There they have a moving magnet on the wheel.

I am having instead of this a driver coil,
that gives a magnet a kick inside a case .

I also have a second case close to it, where a second
coil is wound around, also with a magnet inside.
This second coil is wound 90 degrees (orthogonal) turned
to the first coil.
As the 2 coils are 90 degrees turned around, they don?t influence each
other and currents in each one, do not do any induction into the other...

The only thing, that keeps these 2 coils "coupled" are magnets
that are in each case.

Now the first coil is just pulsed shortly with a square pulse
(in this moment from my function generator,
later models will have an integrated driver circuit powered
by the output power)
at around 10 to 20 Hz.
This makes the magnet inside the coilbox jump up and down and toggle back and
forth forcefully.

As the second coil box is placed near the first box, this magnet motion
is transfered via its magnetic field onto the second magnet, sitting in the
second coilbox.
This second magnet then begins also to toggle back and forth
and thus induces voltage and current inside this second coil,
which is our output coil.

Now these 2 coils work a bit like transformer, only coupled by the toggling
and jumping magnets.
The good thing is, that the 2 coils itsself don?t drag back on each other,
as they are 90 degrees turned around so a current change in one coil, does
not affect the other coil.

Also as the magnet jumps inside the drivercoil, it does not consume
any more input power, it almost stays constant.
Thus the output power could be scaled up  by using bigger and stronger magnets
and having more turns with bigger sized wire at the secondary coil.


Here is a video of this HOG concept.
You can see in the primary front coil box a magnet jump up and
down and toggling and in the coil behind it, there is the second magnet
toggling inside this coil bobbin and lighting up a red LED via its induction.
Also parallel with the LED is my scope connected, which shows
the induction voltage.

This concept can be scaled up very easily.

Enclosed with this posting:
hog01.avi

Regards, Stefan.

[hartiberlin]

P.S.:
The HOG01.avi  movie is in Microsoft MPEG-2 V2 videocodec
and GSM 6.1 audio codec.

I don?t yet claim any overunity operation.
I did not yet have the time to test quantitatively
how much power goes in and comes out.

But I think this concept is quite easily upscaleable
and as the 2 coils don?t influence each other, there
is no Lentz law back drag effect between the 2 coils.

The only coupling is between the 2 magnets and as you
draw output current from the second coil, the magnet inside
this coil is of course slowed down.

But then I will use the Newman spark Gap effect on the
output of the second coil to have an spark gap
jumping arc which will switch on and off the second coil current
very rapidly and thus produce a lot of high voltage RF bursts.

Then when you put an incandescent lamp in series with this
spark gap and coil, you can light up this bulb very easily with
the RF bursts and thus the magnet will not get too much stopped
in its motion.
This will come in HOG version 02.

Regards, Stefan.

[hartiberlin]

Hi MrAmos,
well, these are just 2 aircore coils I had lying
around from former experiments.

They have around 1 mm diameter wire size and
each is around 200 to 500 windings I guess.

I drove the primary coil with my function generator on
square wave with +/- 5 Volts peek , so 10 Volts Peek to Peek
at around 10 Hz with 50 % duty cycle...
( this function generator unfortunately can?t vary the pulse width...)

I had a 0.47 uF foil cap parallel with the primary coil to dampen
the spikes BackEMF to not destroy the function generator
and for some damped oscillation...

But for real input and output power measurements
I need a better primary driver generator, which uses
less power and only generates shorter pulses
with maybe a duty cyle of 10 % on and 90 % off
at around 10 Hz. This will save drastically on input power.

Nice thing is, the primary and secondary coils are
totally independent of each other, so if you draw output power
there is no feedback to the input coil...
Regards, Stefan.

[fleebell]

You might want to try about 80 to 120 hertz, it's pretty much a waste of time to use a frequency any faster that that though as the magnets won't have time to move.  I found that out with my bobble generators that use the same type coils. You will also find out that you won't be able to get as much out of them as you would with a normal gen setup as the back emf will start effecting them and reducing the amount of magnet movement as you get close to the max output for each coil.   The real coils for the bike light have about 5000 turns of 32 gage(approx)  wire in them.  Good idea though, I might try it with some of my coils that are already made up.
Lee b

[hartiberlin]

Hi Lee,
80 to 100 Hz is much too fast !
Then the magnets don?t jump anymore,
but just buzz a bit, but that does not move the
second magnet in the output coil anymore so the output is
much lower.

The trick is to have the magnets really tumbling and toggling,
so they generate a good and steady movement in theoutput coil.
You can feel the best frequency, when the magnet in the
primary coil is realy jumping the most and never stops
then this is the best frequency, which was in my setup around 10 to 15 Hz...

By the way, the second magnets bobbin case was not closed
as I took the video, so the magnet jumped
some timesout and I had to put it into thecoil again,
but this was also to show, what kind of magnet was inside there.

In a commercial unit, this coil casebox would of course be closed,
so the magnet can not jump out !


Regards, Stefan.