PDi Regenerative Acceleration and BiTT Principles

[Jack Noskills]

All you need is C core and  E-I core of similar size and then combine those using three coils as Thane has shown us. Coils should be high inductance to reduce idle current. If ferrite is used then you can use high frequency, but this I haven't tested. I have one E-I core but I think it is partially cut from the middle so it does not work. Core is glued so cannot see it but I trashed one that was similar and there was a cut preventing its use as a closed loop core which is essential in BiTT, damnation. I have played only using iron cores, someday would like to do tests using permeability difference between cores and high frequency.


Problem is that I like my day job and to change that into winding copper wire in circles does not sound fun at all, or to start a factory, hire people and so on. Boring management stuff.


I think Thane has things well going on behind the scenes, this is why I asked. To get a working OU device is no big deal, but to get it into market needs a quantum leap because opposition forces are so strong. Obama's 200 X-illion $ dollars to look for new energy sources is just a show off. They will pay for those people to look for things, not to actually find them. So it will be up to us free time hobbyists to crack this so that anyone can build a working device. This is why I like BiTT because it is so damn easy to build. I trashed few small trafos and one bigger one and then combined those. Used coils I got from trashed trafos so no coil winding, from zero to working device under 15 minutes lol.

[Jack Noskills]

Seems I cannot edit my posts.

About the magnet test, magnets on the stator were bigger than the magnets on the rotor, in case this make a difference.

[tinman]

All you need is C core and  E-I core of similar size and then combine those using three coils as Thane has shown us. Coils should be high inductance to reduce idle current. If ferrite is used then you can use high frequency, but this I haven't tested. I have one E-I core but I think it is partially cut from the middle so it does not work. Core is glued so cannot see it but I trashed one that was similar and there was a cut preventing its use as a closed loop core which is essential in BiTT, damnation. I have played only using iron cores, someday would like to do tests using permeability difference between cores and high frequency.


Problem is that I like my day job and to change that into winding copper wire in circles does not sound fun at all, or to start a factory, hire people and so on. Boring management stuff.


I think Thane has things well going on behind the scenes, this is why I asked. To get a working OU device is no big deal, but to get it into market needs a quantum leap because opposition forces are so strong. Obama's 200 X-illion $ dollars to look for new energy sources is just a show off. They will pay for those people to look for things, not to actually find them. So it will be up to us free time hobbyists to crack this so that anyone can build a working device. This is why I like BiTT because it is so damn easy to build. I trashed few small trafos and one bigger one and then combined those. Used coils I got from trashed trafos so no coil winding, from zero to working device under 15 minutes lol.

Do you have a link to a video of a replication of the OU thane BiTT? or dose Thane have the only one?
I  have seen many attempts,but not one OU device.

[Jack Noskills]

No video available, but if you have some trafos lying around you can try to build it. I used primaries from christmas light trafos (rated 20 watts or so), lots of fine wire. My opinion is that replications have failed because coils were not strong enough. When power is turned on and there is no load, then there shouldn't be any current flowing in the primary. You cannot expect to see any OU effect when using grid frequency and just a few hundred turns like people seem to do. It must be high impedance coil.


I had actually four similar coils in the same core so I could compare BiTT against normal trafo mode. I put two coils in the middle of E-I and other two disconnected. Result was as expected, normal trafo operation, out power less than input. Next I used just one coil from the middle and two outer coils, BiTT mode. Result was as common sense would expect, OU because there is alternate path and back-EMF is used for amplifying effect. Amount was directly related to the size of the alternate path (C core). Output coils can be connected in parallel, series (polarities must be correct) or the other one just shorted. Shorted secondary gave slightly better result.


But enough about BiTT, it works, this thread was about regenerative acceleration. See the original BiTT thread for more info, page 17 onwards.

[Gestalt]

Gestalt, I could think of some interesting experiments to do if I had that setup for sure.

Have you tried tuning a low resistance gen coil to resonance using a capacitor and use that for  third comparison test ? That works in much the same way.
A coil of say a few hundred or more turns and fairly low resistance (you may even have one on hand) then using the inductance measured select a capacitor
to give resonance at the 860 Hz or so of the generator excitement.


eg. Say you have a 15 mH coil you could place a 2.2 uF cap across the coil to tune it to resonance at 876 Hz. Then do the test with that. Doing similar but using lower harmonic frequencies of excitement shows me a incredible acceleration under short and as I said it comes on at a lower harmonic for me then it can lock into the accelerated speed and the load can be removed with still increasing acceleration. I would like to try tuning a coil to full resonance but I have not used coils with enough inductance so that I don't need over 10 uF to make it happen. I'm curious as to what will happen when tuned to full resonance. Would the acceleration take it past resonant frequency or would it stop at just under the resonant frequency, if you know what I'm getting at.

Thanks for the video and taking he time to make such a good presentation. Salute !

Oh and can you get a scope shot of the bifilar coil shorted please. That would be interesting, same with the coil and cap across it, not sure it would be possible to scope with the coil open but if it is that would be good to see the scope as the bifilar is shorted.

Yes, I have done a tuned full resonance with a cap and the results are terrible. Pin goes through the roof and the machine makes a terrible noise, and rpm plummets. It basically acts like a massive continuous load.

And you can't scope a short. At least not voltage. Current yes but then you don't have a reference so it becomes a meaningless measurment.

Gestalt, you have a nice setup there. But shouldn't the coil be further away from core end ? I recall this has effect on how it behaves, causes 'delay of action'.What happens if you turn the coils sideways ? Then the pole that is formed in the core would point away from the magnets, no sticky spots.I want to suggest a simple experiment. Replace coils with same kind of magnets that you have in the rotor. Face them so that they always repel, so when turned it sticks and it is hard to move the rotor. in place of coil      rotor    in place of coil    magnet N-S          S-N      N-S magnetNow move it faster and faster, you will notice that at certain speed it does not stick anymore but starts to flow as if there is no magnets at all. What does this mean, is this anything useful ?

I have ran tests with the core/coil further away from the disc. In my experiments it has no beneficial effect, it merely decreases Pout and Pin in step.
I have not tried the coil sideways.

At high speeds momentum compensates for sticking or "cogging" giving the appearance of a beneficial effect due to smooth rotation. The counter-torque is still there however and you have to pay for it on Pin, as can be seen by trying different materials (metglas vs ferrite vs iron vs air) and measuring Pin at a high speed. Iron coggs the most, then metglas then ferrite the least and obviously air does not.