Lasersaber strikes again. A joule thief king ?

[MarkE]

Marsing,

I was a member of a Radio Control flying club when I first did choose my Internet name.
We did a lot of groundloops back then. :-) Also, I have seen a lot of groundloops when
designing audio amplifiers and such. :-)

Yes, if you cut the top of a TO-3 transistor (or diode) then you can use the die as a NP solar collector.

One thing I was wondering about is why the designers of solar panels do not combine those
panels to also heat water. And, the panels should have a Fresnel lens on top so that the orientation
of the panels does not matter that much. So, three layers, first the Fresnel lens layer, then the NP layer
and last the water layer. Or does that already exist?

GL.

There are integrated PV / solar heating systems available from a number of manufacturers.  It is not all that cost or area effective as you might think. It adds complexity and safety issues of bringing the coolant into close proximity of the PV electrical.

[plaxius]

Igor , TROS VERSION.




https://www.youtube.com/watch?v=P0kVuhWJwCY

[conradelektro]

I tried to replicate Lasersaber's SJRLooper but had little success.

Then I saw the video from Igor Moroz https://www.youtube.com/watch?v=P0kVuhWJwCY and this worked for me.

My transformer has three layers (no copper foil), first layer 29 turns, the a layer with 5 x 29 turns and finally a top layer with 26 turns, wire YT 0,6 mm.

I see a little feed back, but I have to try with a different transformer and a few LEDs (instead of the 220 V LED-Lamp).

I think that the diode in the feed back loop is not necessary because the battery withh absorb the negative pulse and store the positive pulse.

Greetings, Conrad

[SkyWatcher123]

Hi folks, Hi conrad, thanks for sharing the information.
Built a 3 coil, like the circuit you posted, still wiring it up for testing.
The ferrite e-core has
bottom coil, 1 layer of 24awg.- 52 turns
middle coil, 5 layers of 24awg.-260 turns
top coil, 1 layer of 24awg.-52 turns
2n3055 transistor.
Still working on it, we'll see how it goes.

peace love light

[conradelektro]

Hi folks, Hi conrad, thanks for sharing the information.
Built a 3 coil, like the circuit you posted, still wiring it up for testing.
The ferrite e-core has
bottom coil, 1 layer of 24awg.- 52 turns
middle coil, 5 layers of 24awg.-260 turns
top coil, 1 layer of 24awg.-52 turns
2n3055 transistor.
Still working on it, we'll see how it goes.

I started with implementing the Joule Ringer (the circuit is on the drawing in my last post, just two windings used) and then modified it by doing something with the third winding.

I am working on a coil similar to the coil of Igor Moroz, see the attached drawing.

The goal is to find out which diode (LED, Diode or none) is necessary and helps for feedback. Then the right resistor (R1, R2) values and the number of turns for the windings (w1, w2, w3) have to be determined. There should be at least one LED to have light.

So far I could not see any advantage in the use of a full bridge rectifier. And it has to be tested whether the copper foils on the coil are of any use.

Greetings, Conrad