Simply because there is NO OU there. Let me explain...
I have also been interested in this experiment and so, naturally, built a replication circuit. I will tell you the results in a minute.
To make sure that I am objective and there is no outside influence of any kind I even signed up my son and some other local school boys to do a science fair project based on GEGENE. Some picture are attached.
In both cases the end result was the same. The circuit efficiency was never overunity. At best it was close to 94%.
Why then others claim overunity here? Simply because they made some errors in their input/output consumption calculations.
The test circuit included a 1300w induction plate, Tectronix THS710A scope/meter, 3 * 250W load lamps, SunPower 500W online inverter, 35A rectifier bridge / 15000uF/200V capacitor plus a Kill-A-Watt plug-in meter. In addition a Fluke meter was used to double check the results.
The experiments covered every possible scenario with different combinations of flat pancake/bifiler coils, various combinations of number of turns and induction power levels. The efficiency has never even reached 100%.
While it was interesting/educational to complete the project the end result is undeniable: no OU.
~A
Hi Avalon,
Your setup is very nearly perfect except for a couple of things that almost
certainly would boost the units efficiency by the few percent required. Certainly I think you
could squeeze slightly above OU efficiency out of this set-up. Show those
kids that dad has a few tricks up his sleeve.
1] Your instrumentation power should not flow through the kilawatt power meter.
- unless it performs a controller function. A flying ground wire might be justified though.
2] Did you use a HF Fast Full Wave Bridge Rectifier? I would prefer to build the bridge
rectifiers out of these individual diodes. You really can use two bridges for a total of eight
diodes. Diodes will potentially create a PF power factor so you should scope the voltage
and current signals to see how lossy they are.
I like rectifier:
IRF OM5226-SA and -RA Dual Diodes with only 1 each (2) required for each bridge.
12amps each 600Volt 50ns so @200VDC 12 amps = 2.2KW @ 20Mhz :-) 300VAC pk-pk max.
3] Rather then mixing antenna signals. you should use a bridge rectifier for each then
then sum the DC power signals. You really can't mix AC signals without affecting both
antennas. That mix could be a good for a power result, but probably will be bad because
of interaction.
4] I guess you have tried wiring the antenna via the tesla radiant schematic? I keep
wanting to twist two 14Gauge solid copper wires tightly in a hand drill for use as
lead-outs from the antenna. Parallel wire seem would form an improperly matched
impedance transmission line.
5] it may be interesting to try front and back mounting of the coils sandwiching
the drive coil. Maybe use five coils total.
6] One thing I was going to do was to buy two inexpensive 800watt induction
heaters. So that way I could try to use the one spare cook-pot heater's antenna only
as receiver antenna to try for greater efficiency.
7] You really should use a 2KW or higher HV inverter so you don't have to play games
connecting it. Once you get an OU output calculation you could immediately try to
loop it. Efficiency in the inverter is important. Those solar wind grid stand-alone front
end inverters with MPP automatic impedance matching and > 90% efficiency
would be ideal. I would stay away from grid interactive front ends until overunity
result was obtained then they would be interesting again. I can easily see the added efficiency
going above 100% if all the above where implemented.
8] You can check your inverters efficiency by feeding 120VAC rectified and filtered or 120VAC
Voltage Doubled to 240VAC rectified and filtered into it. Load, then measure the results.
You can use 2 identical x 1.5KVAR transformers back to back for 1:1 voltage galvanic ground
isolation if so preferred.
:S:MarkSCoffman