Muller Dynamo

[plengo]

OK.  I looked at both vids beginning and end.  A magnet always stops on the same coil right before the driver with the periphery hall.  I would say this is lead magnet in the precession. always magnet 1.  The sticking point.  If you rotated past this point I bet it sets off a chain reaction and the rotor will spin around back to this point.  You have to generate enough voltage/current  in one rotation to be able to pulse past this point.  The trigger. 
   HARTIBERLIN I feel the BEMF is recycled back into the system.  USed or redirected like in Romeros coil shorting experiments.  Maybe to the second drivers cap and vice versa  as a load on a bifilar coil pair and once shorted to the load causes consumption to decrease because the BEMF has a place to go instead of in reverse to rotation.  I am nowhere near as versed as you guys but seems like he would use the effect he had been experimenting with for some time that showed real promise.

Besides showing the normal person Romero is, no scientist or (I am assuming here) no serious Electronic Engineer (he works on IT?!!! - like me). So must be thinking out of the box here (hold on, just like he said...).

I would think in those terms when I look at this motor and actually I would even build one in those terms if this was my insight .

As he said again: too simple for complicated engineer minds! (or something like that).

Fausto.

[Staffman]

I think there is something that 'some' may be missing. On page 18, post 265, there is a Gif file of the 8 x 9 setup. If you watch carefully, as one magnet moves from EM1 to EM2 (just pick a spot- it's kind of hard to see), all the other magnets move past an EM during this time. It's almost like there is a complete rotation, during PART of a turn. Now I have been trying to wrap my mind around calculating the force that it would take to pulse an EM to push(or pull) a magnet between EM1 and EM2, all while under load. Some of you may know how to calculate this. It may just be me, but I think that this is what we are all trying to figure out. No?

[nul-points]

[...]
It may just be me, but I think that this is what we are all trying to figure out. No?

yep, member 'bourne' posted a link a while back to a video he made analysing exactly that effect

cheers
np


http://docsfreelunch.blogspot.com

[nul-points]

[...]
HARTIBERLIN I feel the BEMF is recycled back into the system.  USed or redirected like in Romeros coil shorting experiments.  Maybe to the second drivers cap and vice versa  as a load on a bifilar coil pair and once shorted to the load causes consumption to decrease because the BEMF has a place to go instead of in reverse to rotation
[...]

i mentioned in passing in a previous post that Romero's drive circuits are able to generate voltage as well as to drive the motor (because there is a series path through the 1N4007, the drive coil & the on-board filter cap which can provide Half-wave rectification, as others have since discussed)

as i mentioned previously, the amount of benefit from that generation will be relatively little, when it comes to assisting the next driving pulse, because the smoothing caps are only 100uF, but there will obviously be some effect and the voltage could still be quite significant, even though the caps won't contain much energy

however, i don't see that circuit as providing a good path for BEMF capture, because although the voltage rises at the emitter of his TIP42 when it switches off, the action of BEMF is to sustain the current in the same direction as when the coil was energised

the 1N4007 is in opposition to this 'same direction' of the current, so there is no low impedance path for the BEMF to be 'harvested' in any significant amount

Romero's circuit, like his whole design is extremely 'lean'

the overall design works - there aren't a great many 'parts' to it - the parts look conventional
(except to some extent the stator mags, but even this technique is used in industry, apparently)

it seems to me that the 'extra' comes either from the 'synergy' of those parts - or from the 'tuning' of those parts - or both

hope this makes sense
np


http://docsfreelunch.blogspot.com

[Magluvin]

Staffman

Yes, there are many many coil crossings in 1 full rotation of the rotor. I believe 72. Only if all coils were gen coils.
Sooo, 56 gen charges per rotor rotation for 7 gen coils. 8 rotor mags times 7 gen coil sets.


I had the same thing with the MMM magnet motor I had linked to earlier. I had 10 mags on the rotor and 9 stators, which gave me 90 times that a rotor mag passed a stator mag switch, all in succession. that was a lot of mechanical switching.
Did Romero show a scope shot of the output of the gen as a whole?  It should look like a fairly solid output of dc with a hair of ripple, even without the cap.

But as the motor coils(2) consumed from the cap, the trace would only show depletion's of 16 times during 1 rotation. So there should be 3.5 gen coil charges per each motor coil discharge.

This is where the alignments would become critical.  If 1 coils set is not close to identical as all others, we might loose some of those 3.5 charges per motor discharge.

Dunno, just thinkin.

So if there were an external motor to drive the rotor, then per rotation, there would be 72 gen cycles per rotation of the rotor and drive motor, if the drive motor were directly turning the rotor at the shaft. So for every 1/8 turn of an external motor, directly driving the rotor there would be 4.5 charges to the cap to refresh. Sounds good to me. ;]


Mags