Joule Thief

[Artic_Knight]

IST

check google bigger is not allways better, i have a nickel sized cap that can do 5.5v at 1F  yours does 50V at 0.125 farad if im right, if wrong then its 1.25F 

go with ultracaps aka super caps aka dual layer caps. there is a guy that has a cap pack the size of yours that will power a house for a month! does 47KW! 

looks cool and beastly tho

[jeanna]

Hi everybody,

Remember when I noticed that only 1 turn of the secondary would light the lights?

I was setting things up for my array, and I was making the array in series but 3 deep of parallel.

MK1 just asked me to test the one wire thing on some lights, but using different wire gauges.

Since I did do that on the array as it was already (I mean with 1 gauge) I decided to make the array one led and as deep as 30 lights if possible as I test these different gauges.

I never needed to make more than 1 turn no matter what the gauge of wire.

I already know that the lights go dim or out on the next light in series.

This array has 12 leds in parallel with each other. I can do more tomorrow in the daylight.

I tested 4 wires with only 1 turn around the toroid. This toroid has 11 bifilar turns on it so this is a single turn of a secondary wire around that. (light grey toroid)

They ALL lit 12 lights.

The gauge was from 22, 24, 30 in copper and 30 in Kynar, whatever that is. "wrapping wire" from radio shack.

I checked the rectified voltage. 1.09 to 1.06v in all of them.

The 9.5 ohm resistor stayed in the place by the battery terminal. I find it too fiddly to get those wires into the breadboard slots. So, this is with the resistor. The volts across that resistor was .22V so the Amps was .023A the whole time.

I feel pretty sure the amperage of this circuit reflects the cost of the transistor only.

I guess the voltage only goes up with the turns. This is the very toroid that with 52 turns of 22 gauge mag wire gave out 29V and 25V rectified across those secondary ends.

I also did a thing I have wanted to do since the beginning. I had enough extra wire on the 52 turns secondary, so I wrapped it over the whole thing 5 times. (across the hole in the middle) The lights went on beautifully. They were pretty bright.

The brightness is so subjective, It is very hard to be anything more than vague.

However, the point is all the lights continued to go on throughout this little test.

Did I confuse everybody?

One of my conclusions here is that the thinner wire is easier to wind and one can make many more turns in the given space, and that is the way to go.

jeanna

PS For clarity and for anyone who hasn't read all 10 thousand pages of this thread. One light and 12 lights in parallel all light up with the same brightness when given their power from the secondary only.

[jadaro2600]

It would be nice to see a recap of what the circuit diagram for this device looks like - it seems to have changed over time.  I gather nothing from the videos, sorry Pirate, but the video's just not convincing me.

a 125000 mfd capacitor, IST, you have a six pack of these devices; you don't think this is a bit extreme, where do you get these things anyway!?  Wouldn't something so large have a capacitive discharge over time, without a load, which decreases the over-all capacity stored; in other words, if you loaded something onto the capacitor, it wouldn't be as effective as a batter of the same size or price relative to charge time?

[innovation_station]

those caps were all i could get at the time supercaps are on the list if i can find a place to buy em .....  looking for 2vdc or less 2f

and biger ones on output .....  the out caps really do not matter .....  depends on there use   yes these caps slowly leak altho no concern ...

this is a power suply for many things .... but only 1 of the steps in the system....   point is i charge em for free...  well next to it ... 

and yes i was gonna use 12vdc 2f caps x6 to drive an invertor with the original design ....  but those are not cheep

this was my first original cappac design ...

wate till i build my MEGA CAPS

that is on deck as well ...

for now mechanical engery is my goal with this pac ...  to drive my biggggg motor .... from a watch battery...

my motor will weigh at least 50lbs maybe more ...  hopeing for 6 coils big ones.... to drive it ...  then piggy back off it ....  and run gearboxes with it ...   for what ever as well

well you get the idea do you not ?


ist!


1000 uses....

[Freezer]

those caps were all i could get at the time supercaps are on the list if i can find a place to buy em .....  looking for 2vdc or less 2f

This was the best I could find for the cheapest price.  There's not many stores that sell these.

http://www.all-battery.com/electricalaccessories_1.aspx