Is joule thief circuit gets overunity?

[Magluvin]

@testers,

Please use a rechargeable AA battery as Input on the Board.  Hook a voltmeter or the oscilloscope to check the change in voltage for a few days.  Report the results.  My results for one night (8 hours) appeared too good to be true!  I now use 2 boards to redo the experiment.

*** testers: You can use the rechargeable AA Battery to power something else first.  Get its voltage to drop down to around 1.26V.  Then use it as Input on the Board.  Make sure that the LED is ON brightly.  See what happens 8 hours later. 

The Almighty always provides unexpected, pleasant surprises to those who try.

Can anyone get a tester board? 

I see where this is going a bit. You might have something, but I have been in this routine before myself.  Hopefully you have something.

What I have gone through, a while back, was with a pulse motor(with recharge) and rechargeable batteries when they are in the range of voltage 1.2v to 1.25 which seems to be an area where the NIMH batteries tend to hang there for a good bit of time while being 'used'. When in this voltage range, the pulse motor was set up for very minimal voltage drop from the battery while running, around 50mv drop. During long runs in this voltage range, you will see for some time a voltage rise in the battery. I was very excited.

But I found that with more complete testing, that this had something to do with how the battery operates internally rather than the battery being charged by the motor, because eventually after the voltage rise while running, it did drop and continue to do so. Repeatedly.

It seems to be that 1.2-1.25v for rechargeable batts is like a plateau or very balanced area of discharge, something like that. Like if you have a fully charged NIMH, its voltage once removed from a fresh charge will drop significantly over time on its own as it is well above 1.25v. Its wasted if you dont use it immediately. But I would let them 'cool' and settle before any testing of supposed recharging devices.

So I see where you are going with the use of these batteries and bringing them down to this voltage range. Here is a better way of going about bringing the battery to the working voltage that you describe to avoid false readings....

Once you drain the battery to the required voltage level, you should then monitor the battery for a bit of time, say 8 hours. The battey will recover some voltage potential after sitting at rest over some time, without being put into the test circuit. This is something that all experimenters should know so that they dont get fooled by their circuits. So dont immediately put the battery in the circuit until it settles back up to a resting voltage. If your test circuit is only pulling a very very small amount from the battery, you will see the battery voltage recover while your circuit is in use, if the battery was just pulled from a fresh drain to get to the required voltage level of the battery.

In fact, someone could easily do a quick voltage test of a battery after being drained some just before hand, then connect it to a 'very' efficient device and show the battery gaining voltage and make a claim that the circuit is causing the rise, when really the battery is just slowly revering from strong drain just before the testing. 

So I suggest you keep these points in mind and on the bench in any further testing.

Mags

[seanK]

Referring to:
Attached is the circuit diagram for the rechargeable AA batteries + LED on March 21, 2013, Posts: 2381
Is there a specific value for resistor(s) "1" in the diagram ?
What coil configuration is recommended in this set up to start with ?

Sean

[ltseung888]

Can anyone get a tester board? 

*** Order as many boards as you like from Mr. Zhou.  Email = zhouwei.1052@153.com

I see where this is going a bit. You might have something, but I have been in this routine before myself.  Hopefully you have something.....

Mags

It looks like some Physics is needed here.  All the observed experimental behavior can be explained by the existence of Lead-out Energy.  We can treat this as a pulsing source.  We shall simplify the explanation with the following diagram.

Once we accept the existence of the "hidden pulsing source", the experimental observations make sense.  Energy does come from the environment.  The research can then focus on:
(1) How much energy can be lead-out?
(2) What are the various mechanisms to lead-out such energy?
(3) Can the mechanisms be expanded and improved to yield commercial products?

There is no need to speculate on experimental errors or battery behavior etc. any more.

The secret of the Divine Wine is here (do not need to wait for patent disclosure in Oct. 2013)

[ltseung888]

@testers

Hope that you have a chance to use slightly rundown rechargeable AA batteries as Input Power Supply to the Board.  I have tried 4 boards.  The attached are the results.  One thing to watch out for is: you can take out the battery to "rest" before taking readings.  Rest time not important.

Now with four different boards all showing Forever Lighted Lamp plus Battery Recharging characteristics, I have done the sowing.  It is up to you and others interested to water, fertilize,weed etc.  Grow the Fruits to benefit the World.  Amen.

[poynt99]

Understanding Negative Input Current?

I set Ch1 to AC coupling.

Why?

This essentially took away the steady DC voltage from the display.

Yes, would that be the correct thing to do to make a proper measurement?