Joule Thief

resonanceman · May 30, 2009, 03:31:15 PM

I have been playing with my Jesus JT / charger

It took a while but I got it charging again

One thing I observed many times .......when you add a larger cap to the base resistor more current flows

I was thinking that larger current flow per pulse is a good thing for a charger .

I tried adding 3uF to the tank

At high power settings I can not get it to charge .

When I cranked the resistance up high enough that the current from my battery read 0 the I noticed that the voltage of my battery was going up .
I would say that it is going up several times faster than it was last night .

The output of the secondary on my JT is 0
I left the LED in the original JT spot to help see what was going on ...it is flashing maybe twice a second ........ it is irragular but clearly speeding up as the battery voltage goes up .

I just noticed something.
I said that the output on my secondary was 0
Then I noticed that my 5 LEDs were still connected .
The meter I use for my output has a high/low function
The high without the LEDs was 3.7 V the low was .01 V
There was no light at all from the LEDs

altrez · May 30, 2009, 03:53:27 PM

Quote from: resonanceman on May 30, 2009, 03:31:15 PM
I have been playing with my Jesus JT / charger

It took a while but I got it charging again

One thing I observed many times .......when you add a larger cap to the base resistor more current flows

I was thinking that larger current flow per pulse is a good thing for a charger .

I tried adding 3uF to the tank

At high power settings I can not get it to charge .

When I cranked the resistance up high enough that the current from my battery read 0 the I noticed that the voltage of my battery was going up .
I would say that it is going up several times faster than it was last night .

The output of the secondary on my JT is 0
I left the LED in the original JT spot to help see what was going on ...it is flashing maybe twice a second ........ it is irragular but clearly speeding up as the battery voltage goes up .

I just noticed something.
I said that the output on my secondary was 0
Then I noticed that my 5 LEDs were still connected .
The meter I use for my output has a high/low function
The high without the LEDs was 3.7 V the low was .01 V
There was no light at all from the LEDs

Nice work! I am seeing the exact same thing. My leds are flashing and my meter is going nuts. The battery is charging fast and all you need to do is increase the resistance.

I have been running a week now

With my LLA1 setup and it seems that from the time I first posted my success to now quite a few people are doing the same thing as my design.

-Altrez

resonanceman · May 30, 2009, 04:04:53 PM

Charger /JT update

I just tried adding a 5MFD run cap to my tank
I was able to get one of my LMs going .
Although it is not quite charging it is running with very little power
I am lighting my 60 diode array . it is not bright but it is lit up .
The battery current is only .03A
It has taken between .09A and .14A to light this array with a "normal "
JT

I wonder if I have something wrong with my setup
I tried to see if I could get just a little more out of it by removing the original JT LED my array went out The current dropped to .01A

gary

altrez · May 30, 2009, 04:13:31 PM

@Gary

You need to keep the load at a constant rate in regards to supplied voltage. I added a rheostat to one pickup coil and can adjust for the best load. Woks great! The key is you need a certain draw to get the charging effects.

-Altrez

resonanceman · May 30, 2009, 05:01:38 PM

Quote from: altrez on May 30, 2009, 03:53:27 PM
Nice work! I am seeing the exact same thing. My leds are flashing and my meter is going nuts. The battery is charging fast and all you need to do is increase the resistance.

I have been running a week now With my LLA1 setup and it seems that from the time I first posted my success to now quite a few people are doing the same thing as my design.

-Altrez

Altrez

I must have missed some posts
I don't remember reading much about your LLA1
Can you post a link to some of your posts about it ?

My description of my LM1 is reply 5749 that is back on page 575 if your pages are the same as mine .

I have been running my LM for about an hour now .
I added 1 extra LM in series with the LEDs
The primary added about 1 V to the output.
The battery voltage has only lost .003V in an hour .
I would add another coil or 2
I am sure that I could get it charging .........but all my alligator clips are tied up in the charger part of the circuit
I guess I am going to wire it up on a circuit board

gary