Self running coil?

[gyulasun]

....
@Gyula, can you please explain how the 3vpp measured gate leak between the source and drain is capable of keeping the circuit running NOW at 30vdc, 57KHz with 50% duty cycle without using any current and maintaining 1.90vdc on the pickup coil with 49,850 Ohm load. Thank you for your help and time

Test 5 video: http://www.youtube.com/watch?v=RhrYzBld74w

Test 6 video: http://www.youtube.com/watch?v=UflGpzijWIA

Luc

Hi Luc,

I try to explain...

The drain source channel of the MOSFET is practically a short circuit for the ON time (actually the R_DS value of the IRF640, data sheet), the ON time now means half wave duration (earlier you used 18-20% or so duty cycle, this meant less ON time, more OFF time).

The drain source channel of the MOSFET is very high resistance for the OFF time, and both the output capacitance of the MOSFET and the body diode is in parallel with the drain source, the OFF time means the other half wave duration of the full pulse time. Now the output capacitance is about a few ten to a few hundred pF only, because the drain source voltage is much higher than earlier, up to 30V.
I still think the resonant tank LC circuit is formed by the output capacitance of the FET and from the 221mH (magnet-tuned) toroidal coil.

The FET as a switch pumps energy into the tank circuit from your generator and you have to consider not only the 3V peak to peak voltage but the current spikes shown in your earlier videos as flat lines between the spikes.

I think the input energy comes from these two: the 3V_pp  and the spikes.  The flat line between the spikes is explainable from the fact that the input is a square-wave: suddenly appears across the coil then its amplitude remains more or less constant, this means no or a very little flux change, then the square wave returns to zero, this also causes a flux change in the core again, current spike appears again.

So to estimate the real input power to the tank somehow those current spikes should be studied, I believe these maintain the voltage in the caps.
Resonant LC circuits have voltage 'amplification' properties, this depends on the loaded Q factor too.  In you circuit this is modified a little, the normal Q times multiplier is not fully valid, due to the half wave rectification inside the tank.

If I can, I will address some unanswered questions tomorrow.

Thanks,  Gyula

[skywatcher]

Hi all,

please find attached circuit. If someone can clean it up and make it look good that would be great.

Thanks

Luc

Thanks for posting the diagram. This helps a lot.   

One question: you write that the inductance is 1.04 mH. Is this correct ?  Or did you mean 1.04 H ?

If the direction of winding is exactly as shown in the diagram, the two half-coils would generate opposing magnetic flux, and then the inductance would be theoretically 0.0 mH, or if the two half-coils are not exactly identical, it would be the difference. So maybe one has 500 mH and the other has 501.04 mH and the resulting difference is 1.04 mH. Maybe you could remove a few turns from one of the coils to get the resulting inductance exactly to zero.

But if this is the case, the whole thing gets even more bizzarre... but maybe for getting effects like overunity it has to be bizzarre...   

[gotoluc]

@gotoluc

After seeing your test #6 - Could you set the device up
so that the capacitor bank is going up at it's maximum
rate driven by the signal generator then clip the SG3525
circuit power to the capacitors without driving any FET so
that the SG circuit is using power....does the SG3525 circuit
pull down (swamp) all the voltage being gained or is there
still some gain - i.e. the voltage keep going up?

:S:MarkSCoffman

Hi Mark and everyone,

at this time I'm not interested in a closed loop for a few reasons.

One is that an efficient pulse circuit could be made to use micro amps once we know the parameters needed. So trying to use the SG3525 or better, a CMOS version of the 555 still uses more current then a surface mount efficient pulse circuit.

The other reason is I still don't quite understand how this circuit works.

More testing is needed.

Luc

[gotoluc]

Thanks for posting the diagram. This helps a lot.   

One question: you write that the inductance is 1.04 mH. Is this correct ?  Or did you mean 1.04 H ?

If the direction of winding is exactly as shown in the diagram, the two half-coils would generate opposing magnetic flux, and then the inductance would be theoretically 0.0 mH, or if the two half-coils are not exactly identical, it would be the difference. So maybe one has 500 mH and the other has 501.04 mH and the resulting difference is 1.04 mH. Maybe you could remove a few turns from one of the coils to get the resulting inductance exactly to zero.

But if this is the case, the whole thing gets even more bizzarre... but maybe for getting effects like overunity it has to be bizzarre...   

Hi skywatcher and everyone,

I think there is something special with this toroid but I still need to test it compared to another toroid. If I measure one half, it is exactly 260mh (both wound to be identical) and once they are combined it measures 1,043mH. When magnet is applied it will drop up to 1,000mH.

Luc

[gotoluc]

To whom ever it may interest. I received the below message by YouTube PM from user: energytruth's who I believe is OU user: PaulLowrance

Is this him?...  if so, what's up with him

Luc


Take it to University
A quick easy way to tell a faker is they refuse to take it to University or someplace and all they do is chant to theme, "Please build it. Just build it. Please build it!" So far you've encouraged people to build it, but have made no mention to you taking it to a University or anyplace to have it verified by professionals. If you're a faker to distract from the Steorn replications, you'll be caught one day. Promise You! There are methods you can't even begin to imagine. Getting compensated to lie and distract the public is against the LAW.