Joule Thief

[altrez]

Wow MK1,
This is really cool...pretty too!


Hi Altrez,
First welcome back!

I have a 20 leds bulb that I get from wallmart made by Lights of America which probably draws 100mA, but 100mA at 1.2v is very little power, especially since this bulb was made for utilities power which is 110v etc.
20leds in series is a lot of light and it is a lot of light for 100mA running from the secondary of a jtc.
If you watch some of my videos you will see how I have used this.
I know you are way behind, but I am about to be. When I return in 2 weeks you and MK1 and kooler and omg well there is no sense in stressing...
here is one I made to show how I was putting this into a bulb but modifying it first.
http://www.youtube.com/watch?v=Hc2B2rzthoA

Then
http://www.youtube.com/watch?v=4gj7IFCXw9Q
which lights 3 of these UNmodified  from a secondary, and it has a really big toroid.

I have even made the movie for the one that shows my jtpu (joule thief power unit, not jeanna's tpu  )
Which is a stand alone circuit in a box with a commercial on off switch and a regular plug. You can plug a lamp into this and light an unmodified 20 leds bulb in that lamp. And, you can even add another lamp because both will go on with the switch and plug. I posted some stills when I first made it, and my camera was doing terrible things the day I tried to make the tube video so it is not up yet.

You will need around 35-=400spiky volts to do this. I made it with the single AAA and it works well, but to read by the lamp, I am using 2 AA NiMH at 2.84v.

So, the short answer is yes.
Doesn't that make you smile?
,
It does me,
I will re-post 2 pix of this.
Notice the snaggle of wires which are plugging into this 'jtpu'


jeanna

Hello jeanna

Thanks for the pics and the info for the bulb. looks like your work is coming along very well.

Thank you and take care,

-Altrez

[zhak]

All greetings
Look at my results in the creation of JT. Was used Ferit teroid and 300, 13, 3 loop of wire, a transistor n3055, 10 ohm resistor, the lamp LED (lamp LED, I could not make out, assign the as-is) Vito JDRLED-2.2W/WH/E27/220V, so get results:
helped me all those who work with this forum and your video

[stprue]

Some more tests.

Pic 1 Shows 2 ferrites wound together sitting over the transmitter

Pic 2 Shows a small led lit off of this confirming some limited current through a bridge rectifier

Pic 3 Shows my sniffer AV probe lighting off a power inductor...as expected

Pic 4 Shows the sniffer probe lighting off ferrite (the absolut was for a different test hehe)

I have seen that depending on the setup you can easily light more LEDs without drawing ma's!!!!!

[altrez]

Some more tests.

Pic 1 Shows 2 ferrites wound together sitting over the transmitter

Pic 2 Shows a small led lit off of this confirming some limited current through a bridge rectifier

Pic 3 Shows my sniffer AV probe lighting off a power inductor...as expected

Pic 4 Shows the sniffer probe lighting off ferrite (the absolut was for a different test hehe)

I have seen that depending on the setup you can easily light more LEDs without drawing ma's!!!!!

Very nice! great work! What type of LEDs are you using? Where did you get the big toroids? Whats your current draw how long are you testing? Whats your receiver circuit look like?

Very cool,

-Altrez

[xee2]

Using kooler circuit with TDK board gives very nice bright filament bulb.

video:   http://www.youtube.com/watch?v=OTprXlK9BrY