Confirming the Delayed Lenz Effect

[Farmhand]

Attached is the best scope shot I could get, I had trouble getting the wave form to stay in place. I guess it could be synced with the drive pulse maybe.

Anyway there is a difference in phase, one waveform is inverted because I put both scope grounds to the capacitor with one 0.1 Ohm current sense resistor from the charging coil to the cap and and the other 0.1 Ohm resistor from the cap to the drive coil. With the scope shots the yellow trace is the charging inductor and the blue trace is the main drive coil. The main drive coil trace (blue) is inverted because of the way the scope probes are attached. The phases are the same even if the charging coil is not near the rotor.

Tinsel, I'm using an optical sensor and a circuit to process the signal into a variable width pulse independent of the signal pulse, narrower or wider pulses than the optical sensor reads are possible, I also have the sensor mounted so I can adjust the timing. I'm using two parallel mosfets to switch the coil which has two windings.

I figure if I use a charging circuit I may as well use the inductor to help drove the rotor.  Also the drive coil discharge would seem to be almost in phase with the charging inductor current. Which could be handy.

Also attached is a picture on one idea for using the charging coil just after the main drive coil. And a drawing with the resistor arrangement I used to see the phases, ( the coils are in a different position on the rotor but the circuit is the same).

Cheers

Anyone want to see a quick video clip of how it works to speed up the rotor ?

[PiCéd]

Sorry for the awfull picture:
Maybe work better like this (magnets are radial), it's like the earth free spinning on itself and around the sun

[conradelektro]

I made my Version 1 of the ring magnet spinner a bit more sturdy. The flimsy and rattling ball bearings were replace with Teflon slab which just have a hole for the axle.

I think I can still tweak it a bit and the Hall sensor has to go underneath the ring magnet because I want to place a "magic generator coil" on top.

The most useful setting seems to be 12V which results in about 3000 rpm for 0.5 Watt.

The most difficult part is the mechanical precision which is till bad in my Version 1 and still worse in my Version 2, see my Reply #1239 on: April 26, 2013, 09:46:35 PM-

Version 1 was better with the rattling ball bearings, see my Reply #1243 on: April 26, 2013, 10:25:47 PM.

Greetings, Conrad

[synchro1]

Sorry for the awfull picture:
Maybe work better like this (magnets are radial), it's like the earth free spinning on itself and around the sun

Here's a  rotating magnet rotor motor like the one you designed:

http://www.youtube.com/watch?v=PKz1Y3UayHw

[Farmhand]

I did some thinking and I think I'll go with a setup something like in the attached drawing. Both coils should be working at around the resonant frequency when the 330 uF cap I have now is considered with them. 80 Hz is 2400 rpm with two magnets. I'll make the second coil just like the first one so I have two the same. I might use some dressed shelf timber 290 mm wide for the sides so there is a big flat area to support generator coils and I'll make it with a removable bearing block in one side so the rotor can be removed through the side. I can place "shelves" so generator coils mounted on wooden mounts can slide in. 

If the generator coil is resonant at three times the working frequency of 80 Hz then there will be harmonic oscillations at 240 Hz to work with.

Concerning the drive coil if it has 12 mH inductance and I dump a 330 uF cap through it then it will be 'resonant' at 80 hz not truly resonant but the coils should be responsive, trying to dump the 330 uF cap through the 12 mH coil at faster rates I think will show less responsiveness. Let's say if I made the generator coil resonant at say 40 Hz then if it gets excited at a faster rate than that it would be working past it's resonant frequency which would restrict the current through the coil and reduce the power it could produce. So the idea is if it is resonant at three times the working frequency that can't happen. Then I can switch the loads attached to the generator coil for effect.

We should remember that part of my input is reclaimed to the charge battery or otherwise  which is connected now to the discharge cap so that only one diode is in the discharge path.

I'm calling it a Dual Resonant Pulse Motor, it easily reaches and exceeds 2400 rpm with the second coil in place.  Now to build a new frame. 
EDIT: ( Actually I'll call it a Two Phase Dual Resonant Pulse Motor.  )

Wave forms look cool. 

Yellow trace is the capacitor in the charging circuit.
Blue trace is the mosfet drain.

Here's the video clip.

http://www.youtube.com/watch?v=w1_KlgJ09Bs