Is joule thief circuit gets overunity?

[e2matrix]

Have you thought about a way to loop the output to the input to make it self run continously?  It would seem with COP of 1.93 it would be possible once started to keep it running continuously.  A DC to DC converter is not hard to find with 85% or better efficiency.   It sounds like with one of those you would still have enough to keep it running. 

[e2matrix]

I have only looked briefly at the latest info here but I'd like to bring up a test I did some time back and am replicating this moment to check my memory of it.  It involves a 1 farad capacitor and a 5 mm bright LED.   That's it - no other parts.   I charge the cap up to about 4 volts by briefly touching it several times for just a couple seconds each across a small 9 volt battery.  I then hook up the LED.  It shines bright for a few minutes and slowly starts to dim down.  I'm retesting now to see how long it stays lit but in a past test some years ago I recall it was still lit after 5 or 6 hours. 
In the Joule thief above a 10 Farad cap is being used versus my 1 Farad cap.  I'm not saying there is nothing of interest with the JT but my setup has had the LED running steadily for hours.   Also my 1 Farad capacitor is very close to the size of the wound 1" toroid used in many JT's.   Just some food for thought.

Still glowing after more than an hour although it is fairly dim....

[bryanwizard]

any update in your overunity... I am a power electronics design engineer.

In Emerson Network Power, we only achieved 97% the highest two stage design.

I just can't imagine how does it works and claimed to be more than 100% COP.

I build the circuit using an LED as an output. With 1.5V battery as an input.
It work but efficiency is very less. The resonance will not affect or create more COP.

where is the free energy coming from?

[ltseung888]

Have you thought about a way to loop the output to the input to make it self run continously?  It would seem with COP of 1.93 it would be possible once started to keep it running continuously.  A DC to DC converter is not hard to find with 85% or better efficiency.   It sounds like with one of those you would still have enough to keep it running.

That will come later.  The present task is to confirm OU beyond a shadow of doubt in the case of the existing tuned boards to be shipped to the three Forums.

[ltseung888]

any update in your overunity... I am a power electronics design engineer.

In Emerson Network Power, we only achieved 97% the highest two stage design.

I just can't imagine how does it works and claimed to be more than 100% COP.

I build the circuit using an LED as an output. With 1.5V battery as an input.
It work but efficiency is very less. The resonance will not affect or create more COP. (conventional thinking)

where is the free energy coming from?

Please wait for the 3 forums to receive and test the tuned oscilloscope-test-ready boards.  Let them verify and confirm OU before you go the next step.  Without tuning, few Joule Thief Circuits show OU characteristics....  If you are willing to post your test equipment, procedure and results openly on this forum, I shall consider sending a tuned oscilloscope-test-ready board to you for thorough testing in the next batch.  The waiting time for this batch is 6 weeks.