Partnered Output Coils - Free Energy

[TinselKoala]

I did a first test with my first partnered output coil. Please see the attached drawings and photos (see the attached circuit diagram).

INPUT  10 Vpp Sine from function generator through 100 Ohm:
50 Hz Sine , Veff 2.2 V , VDeff 2.16 V , Watt = 2.2 * 2.16 /100 = 47 mW
1 kHz Sine, Veff 3 V, VDeff 1.5 V , Watt =3 * 1.5 / 100 = 31 mW
2 kHz Sine ,  Veff 3.28 V , VDeff 1 V , Watt = 3.28 * 1  / 100 = 33 mW
3 kHz Sine ,  Veff 3.36 V , VDwff 0.68 V , Watt = 3.36 * 0.68 / 100 = 23 mW


OUTPUT over 100 Ohm:
50 Hz Sine, Veff 0.028 V, Watt = 0.028 * 0.028 / 100 = 8 µW
1 kHz Sine, Veff 0.34 V, Watt = 0.34 * 0.34 / 100 = 1.1 mW
2 kHz Sine ,  Veff 0.39 V, Watt = 0.39 * 0.39 / 100 = 1.5 mW
3 kHz Sine,  Veff 0.36 V , Watt = 0.36 * 0.36 / 100 = 1.3 mW


The highest output is at around 2400 Hz: INPUT ~ 30 mW, OUTPUT ~ 1.5 mW.

I also tried a square wave signal from the function generator and the results were similar. A square wave signal causes spikes and distortions at the input and output. I will show scope shots in the coming days. But first I would need input from the experts (MileHigh, TinselKoala, others who know something, may be EMJunkie feels like helping out with some suggestions.)

I also know that the core halves should be separated a bit (may be several millimetres) to cause a loose coupling of the partnered coils. I have not done that yet.


Please comment. Help is appreciated.

Greetings, Conrad

P.S: (Tests with a higher current through the primary are in preparation, several Watt. Amplification of the signal from the Function Generator with a transistor and my laboratory power supply will be done in the coming days.)

Nicely done. If you scan through all frequencies you will find a frequency range that will cause the output voltage to peak, as you have noted.  I +think+ that is what EMJ is doing for "tuning", at least in Exp1 and 2 in his pdf. This is the quasi-resonant condition and will be higher frequency for "bucking" and lower for "aiding" connections of the partnered coils... and can even be calculated based on the inductances measured in each case. This difference in frequency can be pretty large if the inductance difference is large. (The 'bucking' connection is essentially equivalent to a standard hairpin bifilar "noninductive" winding as far as inductance cancelling goes. Whether it has other effects different from that winding is still to be determined, as far as I can tell.)

Don't forget, when scoping input and output at the same time, that your probe reference clips ("grounds") are connected together at the scope chassis (probably; you should check this with a DMM continuity tester with scope turned off.) Also check to see if the probe ground references are connected back through the chassis to the line cord ground pin. Make the same check for your FG, see if the "black" output lead (BNC shield) is connected back to the line cord ground pin. It's easy to create inadvertent groundloops with FGs and scope probe reference leads.

[TinselKoala]

Conrad, TK:

The issue that I have with the low-side MOSFET switch is that I don't believe that it is the right type of excitation as called for in Chris' documents.  The MOSFET alternates between a low impedance drive signal and then a high impedance disconnect.  I believe the "correct" drive signal would come from a continuously connected sine wave voltage source like from an audio amplifier.

I think a handy drive signal source would be a cheap car audio amplifier.  It runs off of 12 volts and has a differential pair output.  I believe that they are basically giant operational amplifiers.  If you get a really powerful car audio amp then it's current sourcing and current sinking capabilities must be quite high.  In other words it's a "stiff" variable voltage source, to use MarkE's terminology.

MileHigh

This is true, but with careful Gate drive voltage settings you can keep the mosfet in its linear response region so it will do a sine wave output when driven with a sine wave input. This will heat the mosfet more than a square wave will, but it does work.

Or one could use a high-power bipolar transistor like 2n3055 instead of the mosfet.

After all, the car audio systems generally also use mosfets as final output transistors... and they are harder to fix than a purpose-built amplifier where everything is out in the open.

[John.K1]

Why don't you guys start a separate oscillating magnets thread because it has nothing to do with the partnered output coils?

Magnetismus has nothing to do with the bucket coils? Maybe I forgot to insult someone in my comment to be a part of this thread
Fair enough , here is the last video of Acula , showing something what I believe belongs here.
http://youtu.be/pYjREkw1v-A
He is showing 2x60W  and he is gonna make it self-runner. His next design will be on iron core.

[MileHigh]

Don't forget, when scoping input and output at the same time, that your probe reference clips ("grounds") are connected together at the scope chassis (probably; you should check this with a DMM continuity tester with scope turned off.) Also check to see if the probe ground references are connected back through the chassis to the line cord ground pin. Make the same check for your FG, see if the "black" output lead (BNC shield) is connected back to the line cord ground pin. It's easy to create inadvertent groundloops with FGs and scope probe reference leads.

Yes indeed.  I forgot to mention in my previous post that any serious experimenter should have two or three isolation transformers to give them much more flexibility for where they can attach their signal generators, scope grounds, etc, in a circuit.  I would assume that they might be cheap and possible to find at an electronics surplus place.  Perhaps "50% bigger than a fist" sized would be a good size.

MileHigh

[TinselKoala]

Ok, Let's be a bit nice to Tinsel too.    You might be right about the oscillating magnets.  The mass , center of mass , the distances and the strength of magnetic field might (and does) play role here too.  On the picture you can see my set-up. Two magnet discs on long magnet bar and in my hand I am holding the pulsing coil (yes Tinsel, there are not wires from that coil , I did this picture after I performed the test and I was lazy to put them back   ) In any case I was pulsing it from 3Hz up to 45Hz and as my frequency was rising so did the vibration of magnets - unfortunately. May be I did something wrong

In the back you can see my set-up of backed air core coils I play with. My ratio is there around 1:20 and I am getting HV on the cental tap. Some interesting effects there as well. May be I will do my fist YouTube video ever for you
Cheers,

How could you be doing anything "wrong" when it is so unclear just what "right" might be?


Your aircore coil set in the back could be run as a resonator for a solid-state Tesla coil. With the right drive frequency and coupling between the primary and the secondary you can get VRSWR: voltage rise by standing wave resonance, which will indeed produce interesting effects at the top of the coil.  It's easy to light up neons and fluorescents with the output, even with just ordinary drive straight from the FG to the primary. With a bit more circuitry you can make the primary drive "autotune" to the resonant frequency of the secondary, and feed the primary with higher current ... then you will _really_ see some interesting effects from the secondary.