Joule Thief

[stprue]

Overall I just though an autoadjusting POT would be an interesting tool 

Comments within your post... sorry.

[altrez]

@Altrez,
You are doing much better with your experiments, than I did with my setup, but I can see you are on the same plane of thought I have had previously.
This brings up a point I have noticed through out this thread, several of us here at times have been replicating without knowing someone else was thinking or had done a previous work, and it is almost identical, I think this is an indication that we are heading in the right directions.
Congrads Al on being able to recharge your batteries, that in itself is a big leep forward.


The cap I used was a 35v DC 1000uF.
I wound a many many turns secondary and made a full wave bridge rectifier using 4 x 1N4004 diodes, the cap went on this output, then I soldered a switch (I just love switches) to the 12vDC CPU fan. When the cap charged up, I pressed trhe switch and the contents of the cap discharged into the fan.

I also experimented with trying to harness some radant energy by dumping the cap contents into a buzzer coil I modified, the coil worked, but not as well as I expected it to, but this has scope for further looking into.

This experiment I made was in the early days of this forum thread, no-one else at that time had progressed thus far and I suppose I just ran outa steem, speaking of steam, I wonder what IST is up to these days?

hooroo Al

jim

Thank you Jim! It is very neat how we all seem to end up replicating each others work independently. It really seems to confirm the fact that there is so much more to this circuit then I thought before.

I have charged battery's and filled caps. I have pushed motors and lit neon's. I have even ran a 13watt CFL from a FUJI mode that was powered from a battery connected to a switch that is ran to my Main JT that is charged from a battery that is recharged from a different JT And this all can be done with out introducing any new energy into the system. All from the same battery's.

I plan on adding 6 charging points on my main setup with 4 2.9 inch Toroids connected to one main JT circuit. So far I am still running on the same set of battery's I started with on Monday. Adding a 50F SC to the mix soon that should push my efficiency up quite a bit.

The Cap will be in place to allow a fall off period for the battery's in separate tests I noticed that the battery's seem to have more power If allowed to rest for 1 hour or more? 

I still have a bunch of work to do. I do feel like this will keep on going as long as there is power in the JT. I took a battery from .900mV to 1.2 v in 12 hours. It normally takes me 5-6 hours to recharge from mains.

I plan on getting some of the 15 minute rechargeable battery's and pumping a Super Cap into them to see if they get a full charge. So at that point I will have the super caps charging the batters that are running the circuit that keeps the caps charged and also still run a DC motor, LEDS CFL with Fuji mod all from on circuit and a 1.2 v power source.

Take care!!!!

-Altrez

[jeanna]

@Altrez,

WOW!

jeanna

[Pirate88179]

stprue

I think  the pot is actually OK
It is  the  voltages that are changing  as the battery either  charges or discharges
If  we can keep  the  voltage  in a narrow  range  the  problem should  be solved .
I do not  remember  what  your circuit is like
What I am working on is  collecting flyback  pulses  from  JT coils
There are not  alot  of ways to hook up the coils  so that they add  together .....there ARE lots of ways  to connect them so that they  produce less .

Someone  here said  the other day that  a neon light  can  be  used to  drain off  extra  voltage .......Thank you whoever it was .
Now  .....once I get my  setup right .........I will need to add a secondary   that produces  90 V  or so at  the   output  that I want it to run  at .
I will have to make sure that the  feedback to source is MORE than enough to keep the battery  charged .

I will then connect  the neon  between   the output  and  a  place  where it will provide  negative feedback  when it is  conducting .

If I am right the neon  will also  be a good   status indicator
WHen the circuit is   running but not powering anything  the neon should  glow brightly .     when it is   running   well within its limits  the neon  should  glow   just a little ...... (  only  the  very tops of the  waves  will  pass through it )
If it is loaded and the    neon is  not lit at all .......  you are  probably  overloading  your  circuit .  You  are no longer  reaching  the normal  operating  voltage .


gary

Gary:

If I read this correctly, the use of the neon as described sounds a lot like the way we use them in the Bedini circuits.  It is amazing to me how a lot of this stuff is connected in some way or another on here.  My neon on my no bearing one magnet Bedini (Jonnydavro's design) works in just the manner you said.  It is cool how a 120 volt neon can light very brightly and I am powering the circuit with a rechargeable 9 volt.  They tell me the neon is only there to protect the transistor. (2N3055)

Bill

[jeanna]

OK Altrez.

These are re-posts.

Here is the drawing which may be easier to follow than a schematic (which may be wrong)
If there is room I also post a scope shot of this baby.

There are 3 sets of LEDS not drawn on this drawing.
1-the battery rail can be filled.
2-the bjt spot of the widow on the first tier has a led which is bright and draws a bunch of current.
3- there is another secondary/pickup from the widow which has 3-5 of its own leds.

jeanna