E.M.M.A.

[unimmortal]

I'm giving the switching a break for a bit as I'm struggling to make something easily tunable.

So I've bolted on a motor to get it spinning and shit just got interesting...

24V / 150W (e-scooter motor), at 16V/5A input, ~1200 rpm, geared with toothed pulleys 1.5:1 - output of 260V on the secondaries AND 250V on the primaries (open circuits). Primaries are all looped together with one end open. 

With the secondaries timed for least resistance, it wasn't spinning anywhere near as fast as I expected - until I advanced them well back into cogging territory before it really took off! Dialing tgem back after this didn't change input or speed...

I have a DC 48V/25A controller to wire in with 2 x 12V /12A batteries, so that should see the motor working at it's peak - albeit around 73% efficient @3000rpm.

Why is this so exciting? Because the primaries, once I hit ~1800rpm, should be able to be closed into an infinity loop. Shorting at 1200rpm had a very bright white light form, not so much a spark as an intense glow.

   

I've mentioned the rotating horizontal field at the bloch wall of a field, and the two vortices that restore equilibrium - now I want to elaborate a little more. A coil, when induced by a moving magnet induces a field around the coil, the field around a coil has the same properties as a magnet, which means it also has a horizontal rotating field. Coil resistance is not caused by the magnet - it is caused by the horizontal field trying to reconcile a magnet moving through a field, that ironically and paradoxially was initially induced by the magnet. 

As a magnet moves between connected counterwound coils, (at the necessary frequency), the horizontal rotating fields are being cancelled by the oscillating induced current. Without the horizontal fields trying to restore equilibrium, resistance to the oncoming magnet drops and the rotor in turn speeds up- generating more current. 

I have always struggled with understanding where does the resistance go when coils become resonant, I believe this may be the reason.

Next step is to get the rpm up to 1800-2000 and see if it's possible to put the primaries into an infinity loop. I can already short the secondaries at this speed with a  positive effect.

[Jim Mac]

Did I understand this right?  You are no longer powering the coils, but working it as a multi phase generator and attempting advanced switching?

That's wild man.  I agree, running it with a motor allows you to fine-tweak the generator portion and see effects that may be hidden by sending power in to the coils.

[unimmortal]

Did I understand this right?  You are no longer powering the coils, but working it as a multi phase generator and attempting advanced switching?

That's wild man.  I agree, running it with a motor allows you to fine-tweak the generator portion and see effects that may be hidden by sending power in to the coils.

Spot on man... I needed everything out of band to properly tune and to explore 'how I think' this all works. 

Not to leave the solid state folk out - here is what it boils down to... two bifilar coils... pulse, switch, etc, one winding in each... ... wire the second winding in parallel (shorted). The black diamonds with dots between them are magnets. Once you get resonance with your coils, use magnets to unbalance it. Tap the parallel windings for output to measure the changes.

You'll need a bit of power to generate fields big enough to work with.

[unimmortal]

A small update.

I've managed to get RPM up to +2500 using 1:1 pulleys.
With shorted secondaries, and the primaries in a closed loop, a ~2A drop on the input was definitely noticed alongside a very noticeable speed up. Input current 9.5 > 7.5A.

Before shorting, the primary and secondary coil sets were each showing +500VAC.

[unimmortal]

Hmmmm....  lot's to contemplate.

With final numbers of close to 600V (x2), and a current input drop from 9.8A > 6.7A shorted, the effect is real.

So I've trimmed down by removing the secondary coils to explore some more.

Top and bottom rotors are aligned, and the middle rotor will be used to play with duration by extending the time the coil is under the influence. As expected, due to longer duration, higher rpm is needed to get the speed up.

Nonetheless, 24V / 4A / 3000rpm gave up +500V, and shorting reduced current input back to 2.9A. Connecting outside windings in a loop, and measuring the inside windings netted a poultry 170V.

Biasing the induced coil field far enough to reverse induction is what I'm now trying to achieve.

[unimmortal]

After taking a look at the romerouk motor I conceded that it's time to look at biasing the coils. The photo shows the rotor in the middle, counterwound coils either side, and the same rotor magnets on the back of each of the coils.

This now means that after a good spin, the centre rotor magnets don't stop above the coils  Guests cannot see images in the messages. Please register at the forum by clicking here to see images.

It spins unnaturally smoothly, but still needs a little more work to get the bias just right. A vigorous firestarter spin on the shaft nets 40v, so hopefully with the other 4 coils I can create enough pressure to pass oppositely induced current between the coils.

[unimmortal]

Still hunting for a way to reverse induction, so this time around I've built out a four phase generator. Almost perfect waveforms, just a little amplitude variance from magnet coil proximity.

So the idea is to pass an induced current from one stator to another stator shifted 90°, and repeated through all 4 for a full 360°. The first half of the induction cycle creates pressure, while the last half is creating a vacuum or draw. The draw created from a magnet leaving a coil is wired to a coil that is creating pressure but counterwound, and induced by an opposite polarity magnet.

The hope is that I can naturally draw an opposite current that will create a field that will repel the outgoing magnet, and keep the rotor forever spinning forward.

https://youtube.com/shorts/L0fMWBDAWRQ?s...LApkloGytb-

[unimmortal]

Unfortunately I didn't get the result I wanted, but it may have opened another door.

We're trying to keep a polarity and spin induced in a coil and passing it to an opposite wound and induced coil. What if we locked up Lenz by also winding a counter winding over each of the opposite coils?

The thought now is to create bucking coils that resist change, and by having two counterwound coils roughly in the same space, a field that is counter to the oncoming magnets may be able to be sustained to reverse induction.

More work to do...