Joule Thief

[DreamThinkBuild]

Nice work Groundloop.

Looks like an energy harvesting circuit.

Patent:7791557 - Multiple antenna energy harvesting
http://www.google.com/patents/US7791557

[Groundloop]

My conclusion so far is that this circuit do work. But one will need a long outside antenna and
a good earth grounding to get a output that can be used to charge batteries etc. So a good antenna
and good grounding, and there you go, free energy. (Minus the cost of the circuit:-)

GL.

[stprue]

@Groundloop

Read about Jes's version!

[TinselKoala]

As with all free-energy devices, the exact
constructional details are vital.

Can't argue with that !!

[Groundloop]

@Groundloop

Read about Jes's version!

stprue,

Thank you for the document.

There was a part of the document that did not sound right. (See attached)

Two modules can power a LED to full brightness at 2.6 Volt. Let us say that the
current to fully lit a normal LED is 20mA. Then, P = (U*U) / I = (2,6*2,6) / 20 =  0,338mW.
That was for two modules, so one module can then provide 0,169mW.

Then the article goes on to say that you can fully charge a 12 Volt battery with 20 modules
over night. 20 modules is 3,36 Watt. If it is a very small battery, then yes, but if it is a large
car battery, then no way. (20 modules can power 10 LEDs.)

Then the article goes on to say that with a estimated of 200 modules, you can power your house.
You can power 100 LEDs with 200 modules. Nowhere close to powering a house.

To conclude, yes the ambient power module do work. But the output of each module
is low, typical 0,169mW. To power a house you will need an afoul lot of modules to
get enough power.

That said, I plan to make an 24 Watt (approx.) module. Attached is the Eagle CAD design files.

The 24 Watt module has 144 single modules onto a printed circuit board. I use 12 modules
in series and the 12 of the series modules in parallel. The work on this has begun but the soldering
is a pain in the ass. 576 diodes and 576 capacitors to solder, so 1152 solders in total. A lot of work. :-)

The PCB and parts did cost me approx. 6000 Norwegian Kroner. (Approx. 1088 USD).
I expect to get this board ready in a couple of months time. (I solder some few components each day.)

GL.