Joule Thief

[innovation_station]

@ groundloop

  The following circuit is much brighter than the circuit in my previous post. I removed the diodes and added a 30 pF capacitor. You might want to do the same. Still not as brite as Freezer's circuit. I hope he will post it. He seems to have the best performance.

EDIT: Also works from single 1.5 volt AAA battery.

hummmmmmmm......   

Re: IST! NEO ZAP! TECK Breakthrough ....
« Reply #12 on: Today at 01:40:57 AM »

http://www.overunity.com/index.php?topic=6309.10



ist

[WilbyInebriated]

@xee2
the basic circuit freezer used can be found here.
http://www.josepino.com/circuits/?fluorescent_light.jpc

@jesus
an easy way to use tiny gauge wire with breadboards is to make a small 'post' and wind the thin wire around it a couple times at one end and solder it. i usually make the 'posts' out of about 15 or 20mm of the lead from a diode or a resistor. they go in and out of a breadboard real nice.

[nievesoliveras]

Thank you wilbyinebriated!

By the way, I have been trying to build the gorundloop first circuit with the kodak camera circuit and those circuits now have many tiny parts instead of regular resistors and regular diodes, that makes impossible to change it to a cfl light driver.
I then have been trying to take out the transformer and build the circuit on a bread board, but each time i try to pull the transformer out it gets broken.
Do you know by any chance, the transformer's part number or the name of it. I would buy it instead of keep damaging all the circuits I got.

I made a composed graphic of the joule thief cfl camera process.

Jesus

[WilbyInebriated]

@jesus
i was looking at some of the different flash circuits i have and some have 6 pin transformers, some have 5 pin and some even have a 4 pin transformer with a micro transistor on the bottom side of the circuit board. i don't have any like the one you pictured. for the kodak based circuit you will need a 5 pin transformer, for jose's fuji/other? circuit you will need the 6 pin variety.
yes the transformers are very difficult to remove, i always seem to end up pulling at least one pin out of the transformer. some i saved by carefully pushing the pin/s back in and re soldering the wire, some just can't be saved. i have heard you can use welding gloves and a heat gun on the backside of the circuit board and the parts will just fall out. i have not tried this myself.
i have no idea on the part #, sorry.

nice graphic. great summation.

[nievesoliveras]

@jesus
i was looking at some of the different flash circuits i have and some have 6 pin transformers, some have 5 pin and some even have a 4 pin transformer with a micro transistor on the bottom side of the circuit board. i don't have any like the one you pictured. for the kodak based circuit you will need a 5 pin transformer, for jose's fuji/other? circuit you will need the 6 pin variety.
yes the transformers are very difficult to remove, i always seem to end up pulling at least one pin out of the transformer. some i saved by carefully pushing the pin/s back in and re soldering the wire, some just can't be saved. i have heard you can use welding gloves and a heat gun on the backside of the circuit board and the parts will just fall out. i have not tried this myself.
i have no idea on the part #, sorry.

nice graphic. great summation.

Thanks
I pulled out the transformer from my first attemp the one with the neo bulb, and it has the six legs but looking from the top of the transformer, the one from the right side of the row that has four is just inserted on the plastic and has no connection to the coil. So I infered that it is just to help strenghten the transformer base or that it has that extra leg for a future coil they will build.

Jesus