Mostly Permanent Magnet Motor with minimal Input Power

[gotoluc]

Hi Luc,
okay, now I had another closer look.

As I don´t know, how your H-bridge circuit looks alike and how the resistances of the transistor
or MOSFETs change over time there, the yellow trace= coil voltage is a bit strange, but okay....

In the green trace you can see exactly that there is the LENZ law occuring, as in the motor operation you
see a quick accelerating current pulse and then the counter induction from the coil kicks in,
so the input current strongly gets reduced and as the coil gets slower again at the other turn
point the input current rises again as the counter EMF of the coil is reduced due to lower speed and
thus the input current rises again...
But the coil voltage should be different then also again, but maybe you H-Bridge is mostly powered
by cap discharges as the batteries might have a high internal resistance, so the coil voltage
behaves this strange...


Well, it surely also depends how long the coil is.
If you would have a short coil, that is only 0.5 cm long and the core would be 10 cm long
it would behave quite differently as it is now, where the core is maybe 10 cm long and the coil
is at least about 4 cm long ?

Also it could help to place in the center of the outer core some additional
iron core pieces so the return flux is concentrated in the center....then the counter EMF
would be also different and it could help to reduze Lenz law effect...

P.S. Yes, a device that can show more vertical lift height in ONE shot , that
does not comply to the energy conservation formular:

m x g x h = 0.5 x C x Voltage^2

will show overunity.

So if you can lift a weight vertically up into the air higher than the stored cap
voltage will tell you, you have a winner....!

Regards, Stefan.

Hi Stefan,

my H-Bridge has no capacitor. It's connected directly to the battery which was a 1.5vdc AA battery used in the first scope shot. The voltage was around 1.3vdc while in operation. The H-Bridge uses 4 x 60 volt rated MOSFET's that have a ultra low Resistance of 0.018 Ohm (model FP50N06). So noting should be wasted at the switches. I attached the pdf in case someone wants to look over the MOSFET specs.

Luc

[hartiberlin]

Hi Stefan

As per your request I have made a video demo to prove Overunity. Does this mean I can apply for the OU prize

Link to video: http://youtu.be/OxuotFUWVGQ

Let me know what you think

Luc

Hi Luc,
unfortunately not as you have to calculate the numbers:

lift-Energy= m x g x h= 0.3 Kg x 9.81 x 0.02 Meter= 0.05886 Wattseconds

Energy stored in the cap= 0.5 x 0.0047 Farads x (25.9 Volts)^2= 1.5764035 Wattseconds

So the efficiency is only

3.7 % only, if I did not miscalculate anything...
It is already very late over here in Berlin. time to go to bed...

Regards, Stefan.

[hartiberlin]

P.S. But the lift height could be scaled up by using a higher turn coil
with many more fine windings and higher weight.
Also it is better then to to use higher voltages on the cap.

Also with more and powerful magnets you can scale this up.
Also you have to measure if you discharged the cap completely or
not, that goes also into the calculation.

If you do it like in the AVISO repelleing coil demo, you might benefit from
chopping and shortcircuiting the coil during the launch, so the coil gets and produces its own BackEMF during
the chopped and shorted out energizing, so it will generate more repelling energy to propell
the coil much higher...

Regards, Stefan.

[gotoluc]

Okay Stefan, I knew it was not as easy as you said

It's also late here 3:25am in Johannesburg

You do the math then let me know in writing what is needed to do the demo right.

Luc

[SkyWatcher123]

Hi folks, awesome work luc, thanks for sharing again the idea.
Hi harti, 3.7% efficiency does not sound right, his coil was hanging there for a moment also.
Math aside, lucs design is somewhat like garry stanleys dual rotor air core pulse motor, in that you can use many more magnets and get ever greater shaft work for the same input, I think it's possible that the math is not correlating between units properly to account for this.
Prony brake would be a better method, no cross unit errors.
Though in lucs design, to add more magnets and keep it from becoming an air core essentially, we'd have to prevent saturation, more ferro material in center core.
peace love light
tyson