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Author Topic: Wireless power transmission using Joule Thief  (Read 42240 times)

Offline Positron360

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Wireless power transmission using Joule Thief
« on: May 04, 2011, 02:57:36 PM »
I do not know if this is a common and well-known occurrence in Joule Thief circuits, but recently I have found that by holding the negative terminal of a white LED in my hand while touching the collector (positive) side of the transistor (I am using a 2N2222A), the LED lights up, although it is very faint. It does not work if I do not physically touch the negative terminal, but it does not matter if I touch both the positive and negative terminal of the LED simultaneously with the same finger (I guess the resistance is too high to make any difference). After some trials, I saw that it also works if I connect one side of a single-wound toroidal coil to the negative side of the LED, leaving the other side of the coil not connected to anything. This effect is stopped if I disconnect the lead going from the bifilar JT coil to the base of the transistor, leaving only the input voltage to appear between the collector and base of the transistor.

It appears as if this is essentially an open-circuit wireless energy transmission resembling the effect obtained from Tesla coils. I tried connecting two LED’s and there was no change in the brightness, both lit up to the same level as with one LED.
I will give more details if desired, but I first wanted to see if there was any interest and if this is not perhaps a well-known phenomenon.

Thank you.

Free Energy | searching for free energy and discussing free energy


Offline Pirate88179

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Re: Wireless power transmission using Joule Thief
« Reply #1 on: May 04, 2011, 03:38:00 PM »
Have you tried an Avromenko plug?  You can just add two diodes in opposite directions to the led and then hold one side with your fingers and the led will light up fairly brightly.  I made my first one and tried it on the Jeanna's Light JT circuit and the led lights up very well when held near the toroid.  You can also hear the JT's frequency by tuning an am radio that is sitting near the JT circuit.  (I made a video on this a while back)

I am glad you are posting about this.

Bill

Offline poynt99

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Re: Wireless power transmission using Joule Thief
« Reply #2 on: May 04, 2011, 03:49:11 PM »
You may explore the similar effect of connecting the LED(s) directly at the standard JT output, but use a large resistor value (10k and higher for eg.) in series. The LED should still illuminate. This has been noted, explored, and explained to a degree at OUR.

.99

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Re: Wireless power transmission using Joule Thief
« Reply #2 on: May 04, 2011, 03:49:11 PM »
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Offline Positron360

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Re: Wireless power transmission using Joule Thief
« Reply #3 on: May 04, 2011, 03:51:00 PM »
Thank you, I will look into it. Update: It turns out that the connection to the negative terminal of the LED needs to be anything special, any ground seems to work fine. If I connect the negative terminal to enough metal, there is a point where there is no difference between me holding the terminal or connecting it to the ground.

Offline Positron360

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Re: Wireless power transmission using Joule Thief
« Reply #4 on: May 04, 2011, 03:55:57 PM »
Sorry, I am new here: what does OUR stand for? Thank you for your input.

Free Energy | searching for free energy and discussing free energy

Re: Wireless power transmission using Joule Thief
« Reply #4 on: May 04, 2011, 03:55:57 PM »
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Offline gyulasun

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Re: Wireless power transmission using Joule Thief
« Reply #5 on: May 04, 2011, 06:26:54 PM »

OUR is short for OverUnity Research.

http://www.overunityresearch.com/index.php

Offline Positron360

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Re: Wireless power transmission using Joule Thief
« Reply #6 on: May 04, 2011, 07:09:02 PM »
Thank you.

After studying the diagram under Experiment #2 on this link http://jnaudin.free.fr/avramenko/avramenk.htm I managed to charge a capacitor to about 5V using a single wire connected to the collector of the transistor as the "Avramenko's Generator", while connecting a long strip of wire next to the capacitor between the two diodes.

Free Energy | searching for free energy and discussing free energy

Re: Wireless power transmission using Joule Thief
« Reply #6 on: May 04, 2011, 07:09:02 PM »
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Offline Bob Smith

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Re: Wireless power transmission using Joule Thief
« Reply #7 on: May 05, 2011, 04:11:17 AM »
Hi Posi,
You mentioned,
Quote
I will give more details if desired, but I first wanted to see if there was any interest and if this is not perhaps a well-known phenomenon.

I wouldn't mind seeing a drawing/schematic/illustration of your wireless setup if you're able. If not, I'll live with it. ;)
Thanks,
Bob

Offline Positron360

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Re: Wireless power transmission using Joule Thief
« Reply #8 on: May 06, 2011, 06:04:59 PM »
It is a very simple circuit, I hope you are not too disappointed. Maybe I should have used "transmission with one wire" or "open circuit" instead of "wireless" in the topic title, since there is one conductor connected to the collector side of the transistor. The long strip of wire to the right is exactly that: a long strip of wire connected to the circuit at the point shown. I have not investigated the effect of physically earthing that connection.

There is an interesting phenomenon in that for some LED's I have to hold both terminals in order for it to light up, while this has a negative effect on those that light up with a connection only to the negative terminal.

Free Energy | searching for free energy and discussing free energy

Re: Wireless power transmission using Joule Thief
« Reply #8 on: May 06, 2011, 06:04:59 PM »
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Offline Positron360

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Re: Wireless power transmission using Joule Thief
« Reply #9 on: May 06, 2011, 06:30:22 PM »
There is a small error on the diagram: The DC input is 3V.

Offline pese

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Re: Wireless power transmission using Joule Thief
« Reply #10 on: May 07, 2011, 12:25:25 AM »
Its nothing new, at this cicuits.
Npthing OU
Nothing wireles
Nothing mystic".




This JT inverters (like this)
ARE NOTHING ELSE , as
High Frequency Oscillators. !!!


(even with more power on it, you can drive, energy saver lamps , Neon Tubes  even normal filament 110 or 220v bulbs.
( i done this 50 years ago) this knowledges is very old--

Because this is RF (radio frequency, YOU MUST SEE the Strip as an antenna.

so the capacitance oth them to the enviroment ist also an
resistance "" Dont forget it. 
So, the Diodes in serie wiöl light.
If more power also Bigger loads

Pese

Free Energy | searching for free energy and discussing free energy

Re: Wireless power transmission using Joule Thief
« Reply #10 on: May 07, 2011, 12:25:25 AM »
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Offline synchro1

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Re: Wireless power transmission using Joule Thief
« Reply #11 on: November 21, 2012, 06:16:00 PM »
I believe it's time to resurrect this thread.
 
http://www.youtube.com/watch?list=PLO6FJVqlxatcOftfdvK0q8wPuLUUZ_Mxh&v=mhHhV4qutyA&feature=player_embedded
 
 
Sohei Thoth Has an increabile 3rd. experiment video! This one's ground breaking:
 
 
 
http://www.youtube.com/watch?v=llNbX5z7aDA&feature=plcp
« Last Edit: November 21, 2012, 11:08:44 PM by synchro1 »

Offline TinselKoala

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Re: Wireless power transmission using Joule Thief
« Reply #12 on: November 21, 2012, 10:52:20 PM »
Yes, very  interesting, nice work Sohei. (I don't see any great cracks opening up in the ground, though...)   ;)

The coil/LED combo is a system that receives power by picking up the oscillations from the transmitting coils. The LED rectifies this power and allows half of the received waveform to light the LED; the other half is blocked. The polarity of the receiving coil +and+ the polarity of the attached LED will determine the brightness, the effect on coupled inductances and so on, especially if the _transmitted_ waveform is asymmetrical wrt Zero volts.... as all JT oscillators are.  So the coil has a preferred polarity wrt the LED and the transmitted waveform and when you turn the coil around it's trying to push the other side of the asymmetrical waveform thru the LED, so the brightness and mutual coupling behaviour changes. I _think_ that if both the coil orientation +and+ the LED hookup were reversed, the result would be the same as with the original setup, that is, no change.

The insertion of the coil into the other coils causes all of the  inductances to change. Sometimes this can bring the system into true resonance, sometimes it can move the system further away from true resonance.

It might be possible to improve the performance of the receiver by putting a cap of the right value across the LED, so that coil, cap and LED are all in parallel. I'd start with just a few picoFarads and work upwards.

I just shot a video that might be of interest on this topic. It's uploading now and will be done in a few minutes, at
 http://youtu.be/8b7ABdJQssc

Offline synchro1

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Re: Wireless power transmission using Joule Thief
« Reply #13 on: November 22, 2012, 04:42:52 PM »
Thanks to TK for his video demonstrating the increased range of a single wire wireless receiver coil, with the addition of a resonant capacitor. Sohei's wireless reciever coils are bifilar high voltage and generate resonance from their own self capacitance. Sohei's reduction in input from multiple reverse facing wound receivers is "Richter" scale ground break! The posiibility of consecutive concentric wireless receivers, each one generating light while reducing primary input is a truly awesome result! Thanks to Sohei Thoth.
 
 
« Last Edit: November 22, 2012, 09:00:49 PM by synchro1 »

Offline TinselKoala

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Re: Wireless power transmission using Joule Thief
« Reply #14 on: November 22, 2012, 09:45:21 PM »
Bifilar high voltage? Are you sure you don't mean "multiple strands"? The term "bifilar" is almost as misused as the AC coupling function on a scope. I'm not at all sure that a JT would work with two true bifilar wound coils, but I'm willing to find out.

And if the coils are "high voltage" why does the LED survive? In the typical JT circuit, the "spike" of voltage that we channel to the load (LEDs, another JT, whatever) is produced by the collapse of the magnetic field in the coils we are using. To get "high voltage" by my definition in this spike.... six hundred, a thousand volts or more.... the coils need relatively high inductance. To achieve the high inductance in an air core coil you need lots of wire and large physical size. My "10mH" neon JT uses a coil set smaller than the size of my thumb from knuckle to tip, and makes well over 600 volt spikes on a depleted aaa battery input. You will not see that kind of HV from air-core coils unless they have a lot of wire in them. Tesla bifilar coils have _reduced_ inductance, in fact can have Zero inductance if properly done. Yes, the interturn capacitance is increased for true Tesla bifilar coils, but unless the coil is very carefully constructed this interturn capacitance stores much less energy than the magnetic field does. The great advantage of air core coils is that they do not have a saturable core, so "in theory" the magnetic field continues to grow with increasing current input, it does not "top out". But to take advantage of this effect fully, to make really  high voltages,  you need the physical size, and the construction of the coils themselves needs to be carefully done.

I am not "knocking" Sohei's work at all, it is very interesting and I'm glad he's doing it and I don't even want to influence him (very much).  But if you want to understand what a high-voltage bifilar coil really is _according to Nikola Tesla who invented and patented them_ you might like to take a look at my videos comparing ordinary pancake coils with Tesla true bifilar coils of the same amount of wire and physical dimensions.  I can put NE-2 bulbs and LEDs in series, light them ALL with only one wire hooked up..... that's high voltage, and I'll leave it to you to explain how I can put a 90 volt neon in series with a few LEDS and light them all up (one wire, remember) without blowing anything.
Similar changes in current drain to what Sohei shows in his low power "wireless" system were also noted by me in my wireless power transmission system using multiple receivers.... months ago. But because nobody is calling them  _groundbreaking_.... I suppose the significance has gone unnoticed. And because I use, generally, Single-Turn coils for both transmission and reception, the issue of winding direction is moot.

And the little commercial inductors I pulled from TV sets and use in my JTs have the same relationship as Sohei's JT air-core coils: opposite winding directions. If you hook one of the coils in with one polarity, the other coil has to have the opposite electrical polarity for the induction effect to take place and the JT to work. Reverse one of the coils, and you have to reverse the other one too, electrically, for it to work again. 4 possible configs, 2 work and 2 don't, and of the 2 that do work one may be slightly better than the other.

Demonstrations that do not show variations in conditions are demonstrations, and are fine for that. An experiment, however, varies some condition under the experimenter's control, and examines the behaviour of the system to see what changes result from the manipulation. Shoei is showing this kind of experimentation when he shows the receiver coil in various orientations. For full effect and interpretable results, he should also show the coil in both orientations +and+ the LED in both orientations: four conditions. He is only showing two. If there is no effect from changing the LED polarity, that would be good to illustrate. If there is no effect from adding an appropriate capacitance, that would be good to illustrate. "Null Effects" --that is, the absence of an effect due to a particular manipulation -- are just as important as positive effects, sometimes even more so. In my video showing the random coil tuned by added capacitance, that is the only point I am making. I am not ready to "take over" and do the experiments I think Sohei should be doing, that's up to him. However as I see points that I think might need clarification, I'll continue to try to point them out, and I think that a lot of the work I've done in the past is relevant to what he's doing now.   

 

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