Acceleration-under-load ...

[qvision]

Hello,

i have been working on the AUL effect for 18 months now, on and off.

I'm not very knowledgeable electronics-wise, i only learn what i need to know in order to move forward and this is the only effect i'm working with, as it is quite rewarding.

For those who don't know, the AUL effect results in rotor speedup and input current drop when a load is attached to the generator coil or the generator coil is shorted.

The effect appears when you have a coil of high inductance being driven at a high frequency, typically 200Hz or more.

It seems to be to do with retarding the rise-time of the coil, the rise time of the coil is calculated by dividing the coil's inductance by it's resistance plus the resistance of the load.

If the coil is short-circuited rather than loaded then the load resistance is zero.

So far, i have explored the effect using three device incarnations.

1. A pulse-motor driven by Bedini's SSG circuit.

2. A multi-magnet rotor driven by a DC motor.

3. A simple transformer.

In my pulse-motor version i make it as simple as possible, using a diametrically magnetised neo magnet, so there is no rotor, just the magnet on a shaft. This is a light and fast setup that results in RPM's of up to 30,000 :

https://www.youtube.com/watch?v=s8lI...KV7znA&index=7

In my multi-magnet rotor version, i use a DC motor to drive the rotor.
I don't use the SSG circuit in this incarnation as the motor i use gives me more RPM's with less current input than the SSG :

https://www.youtube.com/watch?v=BLTc...KV7znA&index=6

Finally, in the transformer version, i made a very simple transformer, the primary coil being of high-current and the secondary being of high voltage/impedance, with a large rise time.

I pulse the primary with a square-wave generator, finding the frequency that gives the highest voltage output and this results in the best AUL effect.

I use grain-oriented laminations in the transformer. Obviously, in the transformer version, i don't get acceleration, just input current drop :

https://www.youtube.com/watch?v=_XLX...KV7znA&index=5

I apologise for my bad video quality but it is clear enough, along with this post, to see what's going on.

The interesting thing about this effect is that, the higher the rise-time of the coil (the more turns it has), the better the effect is.

I recently wound a 2LB AUL coil that, when used in the transformer version, resulted in a 50% drop in input current.

Unfortunately, when i added a further pound of wire to the 2LB coil my endcap came off while the coil was winding and i spoilt the entire coil assembly :



I'm sure this has happened to a lot of us here ;+}

I have more wire on the way, plus materials for a new coil-former as my next coil will be a 4LB coil.

I would love to know if anyone here has any experience with this effect and what are their thoughts on it ?

Some people say that, because we are retarding the rise-time, thus delaying the CEMF, that is why the input current drop and rotor acceleration occur.

This seems intuitively correct, but i have retarded the rise-time by up to 30ms, a magnet on a fast rotor can move quite a few centimetres in 30ms, far enough so that the next magnet is coming in, and you would expect the next magnet to slow down.

Other people think it's to do with parasitic capacitance, something that's been designed-out of electronics for years as it introduces unwanted noise.

While reading Eric Dollard's Tesla Transformer book i began to think perhaps it's to do with displacement current ... who knows.

Any thoughts/comments/ideas are obviously very welcome


All the best.

[gotoluc]

Great experiments QV

You may want to try a higher capacitance generator coil. Like your bi-filar but many shorter segments staked on top of each other. Connect each segments in series bi-filar then all segments in parallel. This should raise the capacitance of the coil but keep the resistance low which should give your Generator coil more current output.

Test experiment:
Short your existing bi-filar coil using your amp meter to see how many amps you get then do the same with the new coil and see if you still get acceleration but more amps out.
If you don't get acceleration then you may have to connect 2 series bi-filar segments in series then the 2 segments in parallel.
So make a coil that has minimum 4 bi-filar segments in case you need to do this.

I hope you understand my explanation.

Wishing you all the best in your research and thanks for sharing

Luc

[qvision]

Need to maintain resistance for effect to work ...

Hi Luc, good to hear from you

I hope i understood you, i'm not always good at visualising things. I am confused as to what you mean when you say " ... then all segments in parallel. ".

Here's a picture of what i think you mean for a quadfilar wind for example :



Am i understanding you ?


Thanks for reading,

QV (DeepCut).

Great experiments QV

You may want to try a higher capacitance generator coil. Like your bi-filar but many shorter segments staked on top of each other. Connect each segments in series bi-filar then all segments in parallel. This should raise the capacitance of the coil but keep the resistance low which should give your Generator coil more current output.

Test experiment:
Short your existing bi-filar coil using your amp meter to see how many amps you get then do the same with the new coil and see if you still get acceleration but more amps out.
If you don't get acceleration then you may have to connect 2 series bi-filar segments in series then the 2 segments in parallel.
So make a coil that has minimum 4 bi-filar segments in case you need to do this.

I hope you understand my explanation.

Wishing you all the best in your research and thanks for sharing

Luc

[mbrownn]

For those that are interested I have got a universal motor to accelerate under load but it works in a completely different way. Its a transformer action. Just as in a transformer, the more current you draw out of it the faster it spins but more current is also drawn at the source. Efficiency of electrical in to electrical out is currently similar to a standard universal motor as is the motor torque.

The interesting aspects are a huge increase in voltage despite a 1 to 1 winding, up to 10 to 1 and a massive build up on voltage on the armature. possibly 1000s of volts which I have not tapped yet. Its a work in progress.

The huge current draw, 30A at 8 to 20v suggests little or no BEMF, more replications required to confirm the results.

BTW its a lockridge device, or at least my interpretation of the motor/generator part of it.

[qvision]

Sounds cool brown, any videos, schematics ?


All the best,

QV.

For those that are interested I have got a universal motor to accelerate under load but it works in a completely different way. Its a transformer action. Just as in a transformer, the more current you draw out of it the faster it spins but more current is also drawn at the source. Efficiency of electrical in to electrical out is currently similar to a standard universal motor as is the motor torque.

The interesting aspects are a huge increase in voltage despite a 1 to 1 winding, up to 10 to 1 and a massive build up on voltage on the armature. possibly 1000s of volts which I have not tapped yet. Its a work in progress.

The huge current draw, 30A at 8 to 20v suggests little or no BEMF, more replications required to confirm the results.

BTW its a lockridge device, or at least my interpretation of the motor/generator part of it.

[gotoluc]

Here's a picture of what i think you mean for a quadfilar wind for example :



Am i understanding you ?

No, you are not understanding me

This is what I mean:


Make many narrow bi-filar coil segments instead of one long bi-filar coil. Then connect them in parallel which reduces resistance which will give more power out but you will also gain capacitance (storage time) which should translate in getting acceleration under load at a lower RPM.

There's a certain amount of Inductance and Capacitance needed for the coil to accelerate under load. The higher the Frequency (RPM of magnet rotor) the less Inductance and capacitance the coil needs to have for the effect to take place.

Hope this helps you better understand

Please share your results

Luc

[qvision]

Thanks, Luc, now i see

The only trouble with lowering the resistance is increased current flow, which can negate the effect, but as you say, in your incarnation, increased parasitic capacitance may outweigh that negative.

Thanks very much for taking the time to explain


All the best,

DC.

[qvision]

I guess i'm heading in that direction anyway, my 3LB coil that died during winding (pictured in my post above) would have had the same charactersitics, higher impedance, higher parasitic capacitance and higher current output once stepped-down.

I've already ordered new coil-former materials and wire to make a 4LB coil, should be done in a couple of weeks.

In the mean time i'm going to roll three of my original bifilars into a 3LB coil and see what increases we get.


Cheers.

[mbrownn]

Sounds cool brown, any videos, schematics ?


All the best,

QV.

Its quite simple really but making it happen takes a little work. You will need an AC or half way rectified AC or a pulsed DC supply for it to work

You need a 4 pole universal motor, these usually have four brushes on the armature but we will only use two.

The 3 o'clock, 9 o'clock coils and the armature are powered in series through the brushes at the 3 o'clock and 9 o'clock positions. The motor is in magnetic lock when operated this way and will not turn.

Now take the 12 o'clock and 6 o'clock coils and connect them to a low resistance load. the motor may begin to turn
To improve motoring performance the 12 and 6 o'clock coils may have to be advanced or retarded to find the Ideal position.

A varying supply has to be used or you will not get transformer action. The transformer action powers the 12 an 6 o'clock coils giving an electrical output

As the motor is in magnetic lock, no BEMF is generated, even when the motor is turning little BEMF can be generated.

The motoring force is caused by the flux being compressed at one side of the 12 and 6 o'clock coils.

The motoring force is not good at this point as al the coils are interacting with each other and the flux is being shorted

To further improve motoring action we have to split the case length ways, just as in the lockridge device at the 1.30 and 7.30 positions and with fine tuning of the position of the 12 and 6 o'clock coils good motoring action takes place.

As the motor is now turning BEMF or forward generated current is occurring in the 12 and 6 o'clock coils.

An amplification of voltage occurs in the output.

See the drawing on the lockridge thread http://www.energeticforum.com/renewa...tml#post221422