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Author Topic: Feedback To Source  (Read 387405 times)

nievesoliveras

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Re: Feedback To Source
« Reply #225 on: February 07, 2009, 09:05:12 PM »
@all

If anyone is interested on knowing more about the magnetic mill this is the link:
http://www.overunity.com/index.php?topic=5660.0

tropes

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Re: Feedback To Source
« Reply #226 on: February 07, 2009, 11:34:04 PM »
Thanks @mvmcman

I will post at least one of his graphics in honour of him. I think that he was a very controversial human being that was trying to help humanity with his magnetism knowledge.

Maybe someone will catch the magnetic equilibrium needed to accomplish his work.
If we could finish his work, we will not need to feedback to the source anymore.

Jesus

Jesus
Maybe it's time to move on.
Tropes

nievesoliveras

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Re: Feedback To Source
« Reply #227 on: February 08, 2009, 12:04:28 AM »
Thank you @tropes

Tomorrow I will keep going with the thread.

By the way, this is the only photo taken for the last circuit test at:
http://www.overunity.com/index.php?topic=6362.msg155527#msg155527
My camera got short on the batteries.

Jesus

nievesoliveras

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Re: Feedback To Source
« Reply #228 on: February 08, 2009, 01:26:51 PM »
@all

This is the circuit to be tested.

Jesus

nievesoliveras

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Re: Feedback To Source
« Reply #229 on: February 08, 2009, 01:33:56 PM »
@all

I tried this circuit with 100ohm 220ohm 1000ohm 10000ohm 1000000ohm and it did not work.
Also I tried 1uh 10uh 22uh 120uh 150uh 220uh and it did not make the pulse motor run.

It turns an LED brightly with a resistor from 1k to 100k.
With 100k the battery drain is less.

If I use a 1k resistor and a 125uh inductor with two 1.5batteries in parallel, the pulse motor works well.
With parallel I mean positive with positive and negative with negative.

Jesus

nievesoliveras

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Re: Feedback To Source
« Reply #230 on: February 08, 2009, 01:36:39 PM »
@all

These are the photos.

Jesus

nievesoliveras

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Re: Feedback To Source
« Reply #231 on: February 09, 2009, 02:05:49 PM »
@all

Because my batteries were run down making experiments I had no charged batteries. I use a 40 watts light lamp to work on my project. Then I bought last year from allelectronics 2 garden lights with solar panels.
An idea came suddenly to use the solar panels under the 40 watts lamp and recharge batteries while answering posts on the overunity forum.
The first time the batteries were charged to 1.28 volts, but the next day they were discharged again.
The second time I put the batteries to charge with the solar panels they holded the charge!

So if you want to give double use to the light you are using to work on your desk, place a solar panel under it recharging your batteries while you work.

Jesus

nievesoliveras

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Re: Feedback To Source
« Reply #232 on: February 10, 2009, 04:38:58 PM »
@all

There could be the possibility to get the energy source from the air and the ground for this pulsed motor.
I restored this graphic from http://www.crystalradio.net I found on a search. If I cannot find a good feedback to the source, I will try to build one of this devices.
I did one on the past but I did not know and still dont know how to tap the voltage spark produced by the circuit cap.

Jesus

nievesoliveras

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Re: Feedback To Source
« Reply #233 on: February 10, 2009, 04:44:22 PM »
@all

The project I did was this one.

The circuit captured the last time 90 volts. The problem that made me disassemble it and use the parts for other projects was that the voltage gathered by it was spent on one single spark.

I did not know and repeat I still dont know how to use that energy.

Jesus

Pirate88179

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Re: Feedback To Source
« Reply #234 on: February 10, 2009, 07:41:55 PM »
@ Jesus:

Maybe if we used supercaps as opposed to those regular caps we could bleed off the energy in a slower, more usable manner?

Bill       PS my huge amount (due to the minimum order) of parts may be in by the end of the week.  In there are 50 germanium diodes and a bunch of other stuff.  I will give this a go.


Yucca

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Re: Feedback To Source
« Reply #235 on: February 10, 2009, 10:21:26 PM »
@Jesus and All,

I am thinking about a similar thing with my pulsemotor.

How to recover any BEMF generated charge and feed it back to the input?


An idea I have at the moment is this:

Instead of collecting the BEMF in a cap, feed it into a transformer. Use a diode to capture the BEMF as normal but just put a transformer where the cap normally goes.

The transformer output is then fed through a diode bridge into a large electrolytic that is sat over the motors supply input. Could use a single diode but the bridge may catch a little more ringing.

The large electrolytic will soak up the rectified pulse and make it available to the motor drive coil, adding voltage to the cap that is already charged by the supply.

Put a beefy diode on the supply side of the cap to prevent it leaking back into the supply.

It should be more efficient than collecting in one cap and then transfering using switches (FETs) into the supply side because there will be no switching losses and no cap to cap losses.

The cap should be large enough to hold one pulse with room to spare. The cap should also be low ESR like used in switch mode PSUs.

Toroidal transformer is prefered because it is efficient and will not interfere with mag field of the motor. I think if the mass of copper on the transformer is comparable to the motors coil mass then it should be ok. The core should be large enough so that it doesn´t saturate with the pulse. Of course toroids are a pain to wind and so initial tests could be conducted with El core power transformer. Could maybe use 120V to 12V transformer out of a cheapo power adapter.

P.S.
This idea may have already occured in this thread, apologies for not reading all of this thread yet, it has grown quite long.


nievesoliveras

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Re: Feedback To Source
« Reply #236 on: February 10, 2009, 11:45:24 PM »
Quote from: @pirate
@ Jesus:

Maybe if we used supercaps as opposed to those regular caps we could bleed off the energy in a slower, more usable manner?

Bill       PS my huge amount (due to the minimum order) of parts may be in by the end of the week.  In there are 50 germanium diodes and a bunch of other stuff.  I will give this a go.

Thank you @pirate.
I bought a package of three from goldmine and am doing experiments with them. I used the camera's 350v caps and lost transistors with the high voltage spikes. They are very powerful, but does not last long.

Quote from: @yucca
@Jesus and All,

I am thinking about a similar thing with my pulsemotor.

How to recover any BEMF generated charge and feed it back to the input?


An idea I have at the moment is this:

Instead of collecting the BEMF in a cap, feed it into a transformer. Use a diode to capture the BEMF as normal but just put a transformer where the cap normally goes.

The transformer output is then fed through a diode bridge into a large electrolytic that is sat over the motors supply input. Could use a single diode but the bridge may catch a little more ringing.

The large electrolytic will soak up the rectified pulse and make it available to the motor drive coil, adding voltage to the cap that is already charged by the supply.

Put a beefy diode on the supply side of the cap to prevent it leaking back into the supply.

It should be more efficient than collecting in one cap and then transfering using switches (FETs) into the supply side because there will be no switching losses and no cap to cap losses.

The cap should be large enough to hold one pulse with room to spare. The cap should also be low ESR like used in switch mode PSUs.

Toroidal transformer is prefered because it is efficient and will not interfere with mag field of the motor. I think if the mass of copper on the transformer is comparable to the motors coil mass then it should be ok. The core should be large enough so that it doesn´t saturate with the pulse. Of course toroids are a pain to wind and so initial tests could be conducted with El core power transformer. Could maybe use 120V to 12V transformer out of a cheapo power adapter.

P.S.
This idea may have already occured in this thread, apologies for not reading all of this thread yet, it has grown quite long.


Thank you @yucca
That idea of yours sounds good. Could you post a schematic of it?

Jesus

nievesoliveras

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Re: Feedback To Source
« Reply #237 on: February 11, 2009, 02:21:40 PM »
@all

In the meantime we find the way to get feedback to the source, I will post some useful information about multivibrators. The credit goes this time to lady @jeanna, who gave the link for this information.

Jesus
« Last Edit: February 12, 2009, 01:35:52 AM by nievesoliveras »

Yucca

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Re: Feedback To Source
« Reply #238 on: February 11, 2009, 10:13:17 PM »
Here is a schematic, I haven´t tried it yet. The principle is fairly simple and any transformer should work but best would be a high freq. handling toroidal core wound as 1:1 transformer, maybe 100 wraps on each half.

If your motor uses aircore then fairly small transformer should work. If motor coil has a core then the transformer will need to be a little bigger.

For best performance the transformer size will need matching to the coil BEMF pulse. I´m thinking a transformer with about the same weight as the motors drive coil would be a fair starting point for experiments.

nievesoliveras

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Re: Feedback To Source
« Reply #239 on: February 12, 2009, 01:43:03 AM »
@yucca

Thank you!

What will you use as the drive signal?

Jesus