Muller Dynamo

[i_ron]

@Penno, you won't give up   

I also tried everything to get that waveform, I doubled the size of the rotor magnets to get that virtual south but no difference. Then I tried looping back the output before the FBWR with a diode and the wave starts to look more like it

here I loop back from 1 leg of the FWBR to the positive
http://www.youtube.com/watch?v=1lidfUlP9ZM
here from the other leg of the FWBR
http://www.youtube.com/watch?v=KiJRNujdGo4

Only 1 set of coils connected

Regards,
scratchrobot

Hi scratch,

That looks promising!  Could you do a quick schematic of your connections please?

Ron

[bolt]

Put a 1 ohm resistor in series with the coil to measure the current. Put scope leads over the resistor. The current is the trick everyone so far is measuring the voltage!!!

SHORT out the DC side of the bridge.

Bring the rotor up to medium speed say 1500 rpm

Then put a cap in series with the coil  and the AC leg of the diode bridge and try of lots of values and tune so that the  when the load is a dead short the current is out of phase with the voltage as the pulses hit the coil.  If your coils are not a perfect inductance match you can tune them with caps. You will find around 10uf to 100uf in series of coil will force out of phase most of your coils pending total inductance. When you get close fine tune the backend magnet as this changes  inductance but be careful not to saturate the core with neos that are too powerful.

Now watch your scope! you will get that perfect waveform with critical tuning. Requires EXPERT RF tuning to get this right. Then you are almost there to release the short circuit on the DC side of the bridge and let the power out to the dump cap. Then tweak the backends magnets again changes the inductance to suit the load.

I repeat when tuning to ZPE you tune into a short circuit condition which drops the input current to almost ZERO!!!

If there is no current into a short circuit there is no LUGGING.

Now repeat the process for every coil individually.  When all the coils are tuned in this manor then fine tuned to load the rotor will speed up when shorted and is very slightly detuned into the running  load which has a resistance greater than zero. The  overall tuning effect is slope modulation.

Anyone remember Thane HV coil test on his generator?  He realised a HV coil doesn't lug. He thought this  was just a voltage issue but in fact its because he had a large inductance and small self capacitance creates VARS and no lugging thus his rotor went faster. You can have a thick wire coil with large inductive iron core and compensate using a bank of caps does the same thing see Youtube 900 watt Thrapp generator.

Compare my tuning suggestions to RomeroUK's Scope shot.

[neptune]

@dutchy`1966 / My interpretation is that one should get higher RPM with a shorted coil , Than no coil at all .
Edit . Having checked Romero`s previous posts  , I am certain that is what he meant. The effect my be hard to see without a Rev meter .

[lasersaber]

Quick update.

Video: http://www.youtube.com/watch?v=CVT5ZleK5rY

[scratchrobot]

Hi scratch,

That looks promising!  Could you do a quick schematic of your connections please?

Ron

No need for schematic, I just connected one coil set to the FWBR like normal and the output of the FWBR to 5 x 15000 uf caps and a 12v 4w bulb. Then I connected the negative out with the negative in and the positive out to 1 of the input legs of the FWBR. When I disconnect the load (bulb) the waveform goes back to normal.

At least that was what I was thinking because I wanted to duplicate the effect myself but this time nothing happened! Then I realized that last time I forgot to disconnect another coil set, I saw it after I did the video.

So apparently there was another coils set on the opposite side connected when I did the video and I did not know it! I will try it again.

@bold, Thank you for that info I keep learning every day from people like you! I think Romero was right that we can not all play football but I want to be a pupil

Regards,