Muller Dynamo

[Magluvin]

Nice setup Keh.  ;]

How eff is that drive motor?

Mags

[kEhYo77]

@Mags.
I couldn't find in the specs how efficient the motor is but at this stage it doesn't matter much. I think it is in the 85-90% range.

[From other Planet]

hm not many news here last days..
so I'm telling u my experiences with my Muller generator setup i built. When i have money, i need to build a new, better one
I am sad to say, i had no speed up effects or singing coils , but learned some other things:
-my generator is made out of wood + acryl for rotor (company who made it drilled center hole half or 1/3 mm bigger then 20mm) so it vibrates very much couldn't try rpm about 1000
   ----> don't use wood its not unflexible enough, search for good craftsmanship if u cant make parts urself
-didn't finish it yet with all 9 coilpairs, maximum i used was 10 coils (rotor is 8 magnets)
-adjusting and playing around with positions off hallsensors, backing magnets, coils themselves, driving voltages,cap sizes, cores and Load resistance can increase efficiency huge
-i use BEMF from driving circuits, most testruns bemf was more then 50% of complete output energy(didn't try shorting BEMF yet)
-best efficiency i achieved was close to 50%
-mainly used single driving coils, as this gave much better results (single generator coil on the opposite side)
-Shorting single generator coils: This is cool.
This improved output from a single coil (only had 1 shorting circuit, so only could short one coil at a time, 3+3 N-MOSFET parallel) very much. Biggest improvement was like 0,0x Watt up to more then 2 W. There are sweet spots, i need better control of shorting rhythm in further experiments. And better driving pulse control.
BUT,  shorting slowed rotor, ~5-15%, which means little higher input current (also depends on shorting frequency
-my input voltage and power ranged between 6-24 Volt and 3-30 Watt
-shorting generator coils opposite to a driving coil not work good

Kind regards

[konehead]

Hi from other planet dude

you need to really control the coil-shorting at peak pulse very accurate or it will slow rotor like you say. When you short at sinewave peak and of just enough pulse width so it doesnt want to pull rotor backwards to rotation any, then it will not slow rotor.
It is good to use mosfets in paralell for lower resistance, but also they should be "bidirectional" in that you you have a pair of mosfets with gates and source leads connected, and swtihcing happens between the drain leads.
That peak-period has no real polarity to it is idea - so you want to catch a bit of the rise and a bit of the fall, so AC switching (bidirectional mosfets do this) is needed to catch all you can of the HV and HF oscillations the coil short causes when switch OPENS...have FWBR AC legs across coil, and DC into DC type cap.

Dont put resistance on the cap that fills from coil shorting to "check power" in conventional way...this will kill the effect and is also how engineers will "hide" any free energy-gains in power....("lump resistive load" testing for watts)
INSTEAD, fill caps with the coil shorting with no resistance at all in cap - then disconnect cap from coil in some way, and dump CAP ONLY to resistive load while cap is disconnected from "source" (coils being shorted)

[chalamadad]

I am back from vacation. We also were at Niagara Falls. Took a picture of the Tesla statue and the old powerhouse. Except that there is not much information about that ingenious man there.