Is joule thief circuit gets overunity?

[Void]

Measurement into the "noise" level is useful if one wants to use the "noise"......

@Lawrence: That implies that the noise has enough power associated with it to light a light. Keep in mind that just because you measure noise voltage swings in the mV range or whatever, this does not necessarily translate to actual useable power. For example, in my test above I was measuring noise voltage across the output current one ohm current sensing resistor with the power supply turned off, but the LED was off and certainly next to no current was flowing through the LED, if any at all. If the LED is pretty much an open circuit in this situation, then the actual current flowing through the current sensing resistor would have to be very close to zero. So, what you measure as noise voltage with a scope probe does not necessarily translate to useable power. As soon as you try to draw current from this noise voltage, the noise voltage will likely drop down much lower. Some noise sources are going to have more power associated with them than other noise sources of course.

You can probably draw some degree of useable power from a power line using a large coil of wire oriented correctly, and if it is not too far from the power line, but the power company would likely not appreciate this. You can potentially pull off quite a bit of power from high voltage power transmission lines inductively or possibly even capacitively, but again the power company would not like this at all.


You should be able to come up with a better circuit for picking up EM fields to light a LED or low power light. Lasersaber has experimented with a lot of circuits of this sort. For example see the following videos and info from Lasersaber:

Important Joule Ringer CrossOver update!
http://www.youtube.com/watch?v=Zt5zulKQ1XE

More videos from lasersaber:
http://www.youtube.com/user/lasersaber/videos

Information on his circuits:
Joule Ringer Crossover
http://laserhacker.com/JouleRingerCrossOver.html

Other similar types of circuits:
http://laserhacker.com/index.html


I am not too interested in using noise to power a circuit, at least not as my primary interest. I am more interested in looking for and experimenting with possible ways to generate over unity from as yet unknown or untapped energy sources. When I have time I will try to do some experiments with your super capacitors as a power source for the joule thief boards.

[ltseung888]

I was measuring noise voltage across the output current one ohm current sensing resistor with the power supply turned off, but the LED was off and certainly next to no current was flowing through the LED, if any at all.
*** The experiment should be done with the LED just ON.....

You should be able to come up with a better circuit for picking up EM fields to light a LED or low power light. Lasersaber has experimented with a lot of circuits of this sort. For example see the following videos and info from Lasersaber:
*** Thanks for the information.  We have been following Lasersaber's work.

The adding of capacitors into the circuit is worth much more research.....

[Void]

*** The experiment should be done with the LED just ON.....

Hi Lawrence. Yes, as I had already explained in a few places in my notes for last the experiment I did above with board 119 with the input voltage set to 328mV, I adjusted the input voltage so that the LED was just turned on. The point I was trying to make about measuring the noise voltage waveform with the power off was related to the second measurement I did across the one ohm output current sensing resistor with the power supply turned off to show how much of what constitutes the 'output current measurement' under this condition is mainly just noise, and not reflective of the actual current that was flowing through the LED. In other words, what Ch2 was 'measuring' in regards to output current with the LED just barely turned on, was mainly not output current at all but just noise voltage picked up by the scope probe when connected across the one ohm resistor.

Lawrence, you did not comment on my experimental results at all. Do you understand what I explained in my comments? I just want to confirm that you understand that the output current measurement and subsequent calculated output power that is measured and calculated under the very low input voltage setting used in this experiment is not indicative of the actual power being consumed by the LED. It is actually just erroneous measurement values which appears to be due mainly to the noise voltage picked up by the Ch2 probe, and also due to some extent to measurement error that occurs at waveform magnitudes below the practical lower measurement limit of the scope. The actual output power consumed by the LED and one ohm output current sensing resistor will likely be somewhat less than the input power, but with the equipment and measurement method being used, there is no way to accurately measure the input and output power accurately at those low current levels. At any rate all indications are the output power is much less than was measured. This is what I was showing when I demonstrated that for an approximate equivalent brightness of the LED that the LED current is actually much lower than was 'measured' in the experiment. Did you follow all this, and what is your opinion on my experimental results?

[ltseung888]

http://www.youtube.com/watch?v=B0j46SSlRuI&feature=youtu.be
The Video showed Board 120 with Input and Output connections.
The crossing of 0 ref line by Input CH2 (Current) was clear.  More research needed.....
Full DSO analysis showed COP = 9.17.
@Void,
The waveform and analysis showed similar behavior as yours.  Will try to show characteristics around this range...

[ltseung888]

Capacitor check:

Four similar boards were used side-by-side.  Board 117 has 1 capacitor.  Board 129 has 2 capacitors.  Board 126 has 3 capacitors.  Board 123 has 4 capacitors.  All were charged for over 2 minutes.
The lighting time in ascending order was 1, 3, 2, 4.
See attached.