25mV Joule Thief powered by peltier merely using our body heat -Free energy 24/7

[magpwr]

Hi Conradelektro,

I have to agree with you as this is just theory.


The original circuit version by larskro may not be efficient enough which you have embedded into the circuit diagram to show me.Just realised it hours later after i woke up.
Since it's looks like shorting the transistor  by directly connecting to pipe from transistor collector.There will be a usual voltage drop maybe 0.9v across BDX33 and current would be very high could drain 1xAA very easily.

The circuit i'm referring to is a better version where copper pipe is connected in series with coil.Just refer to the circuit diagram shown below.

A another version from the original larkro circuit using copper pipe.
https://www.youtube.com/watch?v=WlVkfaFiKiE

That's the reason why i plan to connect the 25mv Joule thief toroid 4 turns in series with copper pipe.In theory may work ,maybe.
Base on the above youtube i think there will be higher voltage drop across coil since there is more turns in the coil base on youtube link.We need to be aware copper pipe resistance is very very low <0.05Ohms.And yet this above video work still amaze me.

[conradelektro]

@magpwr: the video you mentioned (https://www.youtube.com/watch?v=WlVkfaFiKiE) is very interesting.

I attach a drawing that depicts how I understand your idea (toroid + copper pipe with many toroids).

Greetings, Conrad

[magpwr]

Hi conradelektro,

Yes that is the plan in my mind.Thanks for drawing out the circuit diagram.

May i ask what software you use.

[conradelektro]

@magpwr: I just used Windows Paint (Windows 7).

Windows Paint is good enough for simple diagrams and if you have a Windows System you have Paint for free.

For more complicated drawing jobs I use TurboCAD Delux V12 (rather old version). Today they sell Version 19 http://www.turbocad.com/TurboCAD/TurboCADWindows/TurboCADDeluxe19/tabid/1869/Default.aspx.

Many people use circuit design programms, some of them are free of charge. But they are usually too complicated for simple circuits.

One could use Gimp on a Linux System. I also have Gimp for Windows http://www.gimp.org/downloads/ and sometimes I use it too.


Tomorrow I will look through my copper pipes and toroids to test your idea. From the video of Eva Aboriđanin I conclude that it migh just work.

Greetings, Conrad

[conradelektro]

Update "many toroids over copper pipe" and transistor ALD110800 or ALD110900:

1) Many Toroids Over Copper Pipe: Total Failure!

I fabricated such a strange "many toroids over copper pipe" (see attached photo) and put it into magpwr's circuit as indicated in the schematics published with my Reply #56 in this thread (my second last post). If I leave the LED in its original place one sees that the circuit oscillates and the LED glows. But I can not get anything out of the "many toroids over copper pipe". May be it only works with high power (e.g. 500 mA flowing through).

But, please, I do not want to discourage anybody. It is important that others try as well.

2) Transistor ALD110800 or ALD110900: These transistors are not a one to one replacement of the 2SK170. So, do not buy them yet.

I put an ALD110900 in magpwr's circuit instead of two 2SK170 transistors. The circuit starts to oscillate (LED glowing) at about 0.4 Volt but stops after a few seconds. Changing the resistor in front of the gate does not help, it does the same without any resistor.

I have to do more tests and experiments. My impression is that the component (the ALD110900) needs a connection to the negative rail which implies that the LED has to go elsewhere. In case the V- pin is not connected some strange charge seems to build up inside the component. In other words, the Gate needs the internal diode connection to the negative rail in order to function properly.

There might be some other problems, I am not really an expert. But I will play with it some more. It shows once more how lucky we are that magpwr identified the 2SK170.

Greetings, Conrad