Joule Thief

[innovation_station]

the peddles are not on it yet i am a busy guy i work on things i can not show ...what i show on ou is a fraction of what i do and have done ..

but all aside ...

yes i used the cfl for many reasons ...  1 it is more light for the bang ... 2 it works much better with the solar cells i will mount to the stock as peddles ..

3

they are cheep

1 buck

i have less than 20$ cdn in this unit including the camera all brand new parts ...... 

in the peddles i will have BACK UP BATTERIES TO INSURE IT IS AT FULL BRIGHTNESS ALL THE TIME AND HAVE A RESERVE ...

HECK YOU COULD PUT AN OUT PUT FOR MP3'S CELL FONES AND SUCH TO RECHARGE IF YOU REALLY WANTED .... 

i have no limits... 

ist!

[Goat]

Thanks Mk1 but I respectfully disagree, if I bring the solar panel close to a light be it incandescent or CFL the LED shuts off.

Now I'm not saying the lights are charging the batteries compared to the sun but what I'm wondering is if a Fuji circuit was to drive a CFL towards the solar panel it may be enough to drive a modified JT circuit to help it along.

Hope that makes sense.

[Pirate88179]

@ Goat:

Yes, I agree with Mark and I have been working on that for a week or two.  As he said, the solar cells, or at least mine, respond better to a given freq or feqs of light.  I was very disappointed when I hit one of my new cells (.5 volt, 1 amp.) with one of my superultrabright leds.  My plan was to enclose 100 of the leds in side a mirrored box along with these 3 cells and a jt circuit.  My hope was to get the cells to output enough to fire the jt...and so on.  I have not given up on it.

Bill

[jeanna]

@  innovation_station

Your Imagination of a flower with all the petals as solar panels makes sense, what if the 400 LED were on top instead of the bottom and could face the solar panels at night, would that be enough voltage to make a JT modified circuit to drive itself and then some?

I don't know the answer to this, but I did try when the question first came up. I have a small solar charger with an analog meter that shows how much solar power there is coming onto the panel. On that day a sunny winter day at 47 degrees lat. the meter went up about 1/4 of the way and was still able to recharge 2 AAA up to their limit. In 3 hours.

Later on that day, I faced my 30 led array right up to the panel a couple of inches away. The meter on the panel didn't budge. I left the lights on this panel for many hours, and the 2 AAA inside were still totally dead.

I don't have too much hope for this. too bad.

jeanna

oops sorry, multiple post. I see what you are saying. Do try it.

[Mk1]

Thanks Mk1 but I respectfully disagree, if I bring the solar panel close to a light be it incandescent or CFL the LED shuts off.

Now I'm not saying the lights are charging the batteries compared to the sun but what I'm wondering is if a Fuji circuit was to drive a CFL towards the solar panel it may be enough to drive a modified JT circuit to help it along.

Hope that makes sense.

I got that part, Why would someone design a night light to work in the sun? They would not !

All i am saying day time charges the battery in the circuit and the battery works at night and the solar is disconnected since there is no light?

All i am saying is that if you reverse the photo cell or just get it stock on daytime use , it will work.

To do that just change the photo sensor with a resistor that has the same value as the sensor in full sunlight.

I hope its clearer now.