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Author Topic: kEhYo Experiments  (Read 40528 times)

Offline kEhYo77

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Re: kEhYo Experiments
« Reply #15 on: July 01, 2012, 05:39:51 PM »
I finally got my coil shorting going!
I had to rebuild my PWM driver as the old one has gone in smoke.
It's a 555 + LM393 + MIC4422 mosfet driver.



I've dug up my old setup with a rotor and I am driving it GAP POWER style magnets all the same pole out.
Driving coil in attraction polarity, there are magnets behind the coil in repelling mode to the rotor.
I am shorting two gen coils non stop, they're hooked up in parallel.
There is lots of radiant in shorting :D I'll make a short video soon.

kEhYo  8)

Offline Romero

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Re: kEhYo Experiments
« Reply #16 on: July 01, 2012, 06:08:26 PM »
Nice one kEhYo.
Have you considered to short a shorted coil...

Best regards,
Romero


Offline kEhYo77

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Re: kEhYo Experiments
« Reply #17 on: July 01, 2012, 06:30:00 PM »
What do You mean Romero?
How to short a shorted coil?
Unshort it for a moment?

kEhYo


Offline Romero

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Re: kEhYo Experiments
« Reply #18 on: July 01, 2012, 11:02:07 PM »
What do You mean Romero?
How to short a shorted coil?
Unshort it for a moment?

kEhYo
I hope the pictures will help...
« Last Edit: July 01, 2012, 11:09:04 PM by Romero »

Offline kEhYo77

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Re: kEhYo Experiments
« Reply #19 on: July 01, 2012, 11:17:49 PM »
Thanks for the tips I will definitely try that.
I guess the best way to play with those different lengths would be to wind multifilar coil
and connect in various ways...

Offline Romero

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Re: kEhYo Experiments
« Reply #20 on: July 01, 2012, 11:28:32 PM »
Thanks for the tips I will definitely try that.
I guess the best way to play with those different lengths would be to wind multifilar coil
and connect in various ways...
Good results I had not using a rotating wheel with magnets but a solid state version, you can try both.

Romero

Offline kEhYo77

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Re: kEhYo Experiments
« Reply #21 on: July 09, 2012, 05:51:08 PM »
[/youtube]
A Hall sensor triggers a MOSFET transistor to activate the driving coil in attraction mode to the rotor. The stack of magnets behind the driving coil is in opposition to the rotor.
When the driving transistor shuts off, the magnetic field from this stack pushes the rotor away from the TDC. When there is no power applied the rotor is affected by cogging only a little as the stack of magnets is pushing away while the iron/magnetite cores of the generator coils pull to the TDC. The rotor consists of 6 neodymium permanent magnets (N50), of which all the poles are oriented with their NNNNNN outwards.
Two generator coils that are connected in parallel are being shorted constantly many times per cycle using two MOSFET transistors connected source to source with bypassing diodes. This pair is being driven from a small variable frequency/pulse width square wave signal generator/MOSFET driver.
Two neon bulbs are connected across the generator coil pair being shorted.
There are moments when they put out quite a light show of purple flashes there.
« Last Edit: July 09, 2012, 06:53:40 PM by kEhYo77 »

Offline Romero

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Re: kEhYo Experiments
« Reply #22 on: July 09, 2012, 10:20:32 PM »
@kEhYo77
Are the coils bifilar or single wire?

Romero

Offline crazycut06

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Re: kEhYo Experiments
« Reply #23 on: July 10, 2012, 12:13:03 AM »
@kEhYo77

Nice setup! Surely there's a lot of power comming out of those coils, how do you plan in using the output?

Keep it up!

Offline kEhYo77

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Re: kEhYo Experiments
« Reply #24 on: July 10, 2012, 01:54:43 AM »
Romero, the two generator coils are identical and bifilar.
They are connected in parallel and then in series (A1||B1) + (A2||B2).

Offline kEhYo77

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Re: kEhYo Experiments
« Reply #25 on: July 24, 2012, 09:52:00 PM »
Here is little clip of the setup I am working on right now.

[/youtube]

In this short clip I am testing this new setup according to Gap-Power_com experiments.
The RPM here is 1250, the power is being supplied by 12V 7.5 AHr battery.
The current draw is measured as a voltage drop on 0.1 Ohm shunt resistor and its value is about 380 mA rms on the positive side minus lower part of the trace when I get a charging effect.
 There are 6 N52 neodymium magnets on the rotor, the driving coils are bilfilar in series, 2 in series, 4 Ohms total resistance and about 15 mH inductance together.
A Hall sensor turns on a MOSFET transistor on an approaching magnet to neutralize repelling force from the stack of magnets behind the driving coils that push the rotor at Top Dead Center when the power is off.
In that moment the coil becomes a generator coil as the core (magnetite powder + iron powder + resin) switches polarity and returns much of the energy back to the battery.
This can be seen on the scope trace as the lover curve bump, below the marker line.
It seems to be a very efficient motor, the cores do not heat up, more testing to come...
« Last Edit: July 25, 2012, 12:22:31 PM by kEhYo77 »

Offline aaron5120

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Re: kEhYo Experiments
« Reply #26 on: July 25, 2012, 04:08:30 AM »
The link to kEhYo77's setup clip is:
&feature=plcp

Offline kEhYo77

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Re: kEhYo Experiments
« Reply #27 on: July 25, 2012, 12:17:42 PM »
Thanks Aaron, I've corected my post.

Offline aaron5120

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Re: kEhYo Experiments
« Reply #28 on: August 02, 2012, 04:06:23 AM »
Hi, are you alright, kEhYo77? I am a little bit concerned, since there are no new posts here in this forum for a week.
I hope everything is going ok, and just me being overly nervous.
Please take care yourselves, researchers, we need you to be healthy and wealthy in order to help the world.

Offline kEhYo77

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Re: kEhYo Experiments
« Reply #29 on: August 05, 2012, 09:16:28 AM »
I've been playing with my new phone GalaxyS3 ;D thanks for concern, but everything else had to wait...
Now my videos are gonna be full HD quality hehe
« Last Edit: August 05, 2012, 09:19:21 AM by kEhYo77 »


 

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