Mysterious Resonant Circuit

[gyulasun]

Yes, Hoppy that is correct,  my calculations are a quick evaluations to see the COP which seem higher than one.
And all such results should be treated with suspition till looping back the output is a success...

rgds, Gyula

[xee]

@ Peterae
Very nicely built replication. Would you please list the number of turns in each of your transformer windings?

[duff]

@EM

Please clairify the polarity of the battery in your latest schematic. The schematic symbol indicates one polarity while your text indicates the opposite.



Also, would you please give us a breakdown of the turns you've used in the windings. We can assume that you used the same as in the micro tpu thread but we'd be guessing and it difficult looking at the picture to know EXACTLY what you have done.

If you know the core characteristics that would also be helpful.


Thanks,

-Duff

[hartiberlin]

Hi Peterae,
well done.

But I don?t see, that you measured the input current into your circuit on a shunt resistor ?

Please use a LC lowpassfilter at the battery to cut off all hash from the circuit.

I guess EMdevices 2nd shortout LC bandpass is not really neccessary.
2 LC lowpassfilter would have done it too.
The magic is probably in the 4 coil?s setup on the core.

EMdevices, did the device make any vibration or sound
and did it change, when you held the windings tighter together
with your hands ?
Maybe there is a mechanical interaction ?

[hartiberlin]

Hi Peterae and EM,
maybe you can also try to
substitute your 150 Ohm outputresistor
with using just an Avramenko plug with 2 x 1N4148 diodes
directly at the scopeshot 3 point as the output.

So use this one wire output to charge
up a big capacitor and then have a load
resistor across only this cap.

This way you could probably further reduce your
input current from the battery.

Would be interesting to try.

Many thanks.

Regards,.Stefan.