Muller Dynamo

[keykhin]

Keykhin
What is the function of the 2 diodes between the fets and coils?
Vissie

I think those diodes block the current generate by the coil to go back to the transistors, avoiding losses by heat. Romero thinks also those diodes are very important.

[baroutologos]

@Above,

I did not gave too much info so as not to bore any reader. But generally, what you propose i have done already. In the solid state setup, indeed you have a point, since it operates at high speed, the coil cannot collapse thoroughly or the switching is not that complete.

But in the mechanical setup, switching is perfect. The collecting cap, is not AC but DC in this case being an 220uF 450Volt one. IRF640 have an on resistance of about 0.15 ohm. My coils have some 1.5ohm resistance (biffilar and more tested one) so the 1/10 ration of coil to FET dead short resistance analogy is according my view tolerable. After all, it runs stone cold.

I have seen you mentioned that when you discharge cap to load you must disconnect the power coil. In solid state i have done that, in mechanical setup not.
I can estimate that only one or 2 pulsings can go directly to load when cap discharges, whereas there are needed tens of them to fill the cap till triggering.
So in my view not much reflection should be taken from there.


Anyway, there is yet anyone to prove that this method works beyond dispute. To me your views are to be proven in actual experiments.

ps: In anyway, Romero in his muller setup did not used any coil shorting action (even he initially planned to as far i remember) and yes he has said he tested and balanced his each coil pair alone with a dead short or a small all time on dc resistance (light bulbs)

[toranarod]

Baroutologos wrote:
"Again, in this particular setup failed to observe any energy gain (calculating losses etc in the equation). From a critical point of view my setup suffers from a conductive rotor and the inability to adjust spacing of rotor to coils."

Kone replies:
I can see lots of reasons yoru experiments showed no gain besides the things mentioned above  - first of all you use a couple IRF 640mosfets and this is not so good UNLESS you put say 5 in paralell then the reistance is very low and the effect doesnt get snubbed out.
ULTRA LOW resistnace in the mosfets is very important.
Also filling AC type caps from coil-shorting (looks like that in circuit) just doesnt work for some reason they dont "hold" the voltage I dont know why I know someone else who tried coil shorting into AC caps and he came out away saying the volts jsut dissapears - pump it into DC type caps after a fullwave bridge and that voltage STICKS.
also you need to let the field of the coils to collapse completely to get max power and if you start out with 10khz then your time at peak periods to do the shorting  is also very short and doubts your coils can ever collapse unless you are using aircoils maybe
also having a "coil coupling" and then short the secondary coil is not going to work either - its destined for failure - only if bifilars and you short one half of bifilar would I expect anthyghin good to happen that way since then it woudld be very tight induction..
Look at LIDMOTORS video he is doing it right and got double voltage, no extra draw in rotor really and can improve things as he should  be doing shorter pulse widht usuing bidirectionals  and this and that.
dead short continuous coil shoritng relaly serves no purpose but to have something resemble a resistive load on the coils (but its not)  its the opening of the switch after coil collapses that all the gain is created...plus HF HV oscillations  whihc is what Isnmael "taps" into wiht his 5 shorts at peak tech....its allvery similar to TESLA sparkgap
and finally there needs to be two-stage output circuit on the end of it all too - everytime you hit aload like lightbulb with coils connected still to cap it gets snubbed away and no gain
only other way to go is highbyass filter AC cap inseries on AC leg of FWBR but dont use that unless you have to

thanks for your input Konehead
Similar to Romero’s motor and the knocking noise that he claims was disturbing the neighbors,RPM does not change.

I have a video on the shorting of the coils

http://www.youtube.com/watch?v=9elWyasiatI

[Hoppy]

Rod,

Nice demo. Romero could self-run with an additional hefty lamp load. Have you got anywhere near self-running with no load other than loop back?

Hoppy

[penno64]

Hi all,

I am just about ready to give up.

Have tried anything and everything I can think of - without sucess.

A parting pic showing the generated voltage after the dual rectifiers, all paralleled and without filter cap.

7 bumps for 7 coil sets.

Regards, Penno