Muller Dynamo

[Magluvin]

Hey Jay

Hmm, never thought to put the top and bottom coils in series. That would lower the freq of resonance. For some here, it may help. Maybe the rotors in some cases dont reach coil resonant speeds.  maybe.

I dont have a Muller style setup yet. Money is shorter than it has been. I was moving my Fiero from 1 parking spot to the next and the throttle stuck, and I ran into 2 big square metal doors on the storage facility, that I gotta dish out $1100 for.  AND my car, well, needs new front bumper, 2 fenders and my wheels are aiming outward.  uggg.

Been working with a single bifi Ive had for some time, using a rotor driven by other coils.  But im not hitting high enough rpms with just N pole mags on the rotor.  i gota make a new rotor, as this one is set up for 16 mags alternating N S.  And some other issues.  But this weekend is 3 days and they are all mine. ;]

Yea, the series and parallel might be interesting as we might get the best of both worlds. Or maybe not, but its worth the try.  ;]

Mags

[baroutologos]

baroutologos, 

Have you seen the 2 Thane videos posted here in the last couple pages?  Are you familiar with Thane?  IMO he is a top researcher and knows what he is doing.  In the second video I posted it appears he is showing this to potential investors as he is talking about intellectual property rights and patents IIRC. 
   He explains and shows how a standard wound generator brings a motor to a complete stop when loaded.  He then shows how his special wound generator actually speeds up when loaded and the more load the more speed and less motor lugging.  His explanation appears to involve having higher voltage and lower current on the generator coils (and I assume some fine tuning and possible other factors).

e2matrix

Hey E2matrix,

of course i am familiar with Hein's work. In matter of fact, i start up my ou experimentation with Perepiteia setup.
Thane IMO, has stubled upon an oddity indeed. He has a coil past a rotor and when shorted rotor speeds up! Thats OU? Do not think, so far. I have tested the cocnept since it captured my imagination.

many hours of experimenting you are starting to realize a relationship between magnetic cogging, energy lost to that cogging, cogging "release" after having the coil shorted or just about any coil (accelarating or not), energy lost to shorted coil (due to internal resistance), how an added resistance (hence a load) limits the accelaration effect, and look also for relations of frequency - impedance - resistance.

I have mapped those figures according my understanding and have seen that there is a always a trade off upon this effect and no energy gain. I openly seek an experimenter here to post his experience that a shorted and accelarating coil will make a net possitive effect. No luck so far. Romero himself told that someone should demonstrate that effect. It would be a milestone. Yet, despite several accelarating setups, do not think anyone has a net energy gain. (mariuscivic have the most promising ?)

Anyway, back to Thane, i bet he has realized that fact by now and his countless experimentations hours but so far failed to come up with any reallife working device. (oil black ops?)

In terms of current, if you have followed my posts some pages ago, a shorted (and accelarating coil) creates a delayed current thanks to huge inductance to resistance ratio making effectively a phase swift (far less than a perfect 90 degrees due to relatively high resistance). This phase swift i have found so far that its not aiding (as it should?) rotor accelaration, rather than follows the general power factor rules.

Bottom line, my overall impression regarding rotor accelaration is that by enabling a coil to magnetically interact with rotor diminishes magnetic cogging or "friction". Of course i would be more happy to be wrong my friend.

[rogla]

I would like to add following observations to my previous posting about the calculation of the phase angle between voltage and current.

The system can be designed in two ways:

1) High capacitance relative inductance (low resonance frequency)
Operating above resonance, phase angle decreases if speed decreases.

2) Low capacitance relative inductance (high resonance frequency)
Operating below resonance, phase angle increases if speed decreases.
This design can newer be a "run away" because when the speed increases to much, the phase angle will decrease and lower output (provided the resonance freq is not to high). 

So, how do I wind a coil with as little capacitance as possible and as large inductance as possible? Anyone with good advice?

[itsu]

Thanks for the responses all.

@ Xeno, i did try series resonance as well, but was a the "wrong" measuring point for the current.
I remember it did not had any effect which is strange, so need to redo that test also.
Remember that in parallel resonance, the impedance is (theoretical) infinite (like an open circuit) causing
max voltage and minimum current (this minimum current is what we want as that current causes drag (lenz)).

@ Duff, in my first video you can see that i had NO phase shift between the current pulses and the voltage when measuring the current "outside" the tank, which is what i expect in a parallel resonance circuit as Xc and Xl should cancel each other out, leaving us with the DC resistance of the coil only (no phase shift then).
I will retest and check the phase in both inside and outside the tank, both with and without the parallel cap.

@ jdo300, nice to see similar results, remember that in parallel resonance the impedance is (theoretically) infinite, so no current will/can run, therefor causing no drag (lenz).
In series resonance however, the impedance is at its lowest, causing maximum current (drag).
I too found out that with the cap in series, there is almost no impact seen (as if no cap was there), but as i was measuring the current on the wrong place i need to retest this.
I think you should go for the both generator coils in series, not series canceling.

Next steps besides the retesting is:
# create a generator coil pair with more windings (multi filar) each (HV coil) running in parallel resonance.
# find a way to "impedance match" this HV output and reduce the voltage to "match" the input voltage (transformer?)
# get a more stable drive circuit to "force" the RPM's in a fixed (resonating frequency) band as now under load/short
  the RPM's increase to much forcing the circuit out of resonance (is that the reason of Romero's special hall sensor positions?)
# try to compensate the "running away" under load/short by adding a "normal" not resonating coil pair which introduce drag, but
  along the way also generates extra energy (4 pairs in parallel resonance, 3 in normal?).
# try to understand why i still see 90 degrees phase shift while in resonance.

Regards Itsu

[yssuraxu_697]

/.../ This phase swift i have found so far that its not aiding (as it should?) rotor accelaration, rather than follows the general power factor rules.

Bottom line, my overall impression regarding rotor accelaration is that by enabling a coil to magnetically interact with rotor diminishes magnetic cogging or "friction". Of course i would be more happy to be wrong my friend.

Have to agree, we need some sanity here. Guys reporting "acceleration under load" in RLC often miss the fact that cap-coil tank in resonance loads the motor the most! And if they connect something additional to form "cap in parallel" etc it usually gets detuned and thus "acceleration". Reference point should be speed w coil ends open! Just realizing that would skip additional 100 pages or so
There is no fish whatsoever in trying to go OU with just simple RLC!!! At best it is a way to get more out of gen with otherwise lousy output, but at underunity cost.

If anyone has system accelerating under load compared to coil(s) disconnected from everything - thats whole another story and would be very interesting to hear about it more