Big Joule Theif

[ren]

according to Bedini (and he seems to be right?) the capacitor kills the radiant.

No.

The capacitor converts the radiant.

Regards.

[StevanC]

Some thing else to try to get more light or power.
If you have two JT's circuits connect the two collectors togeather.

Allso you can make a rectifier out of led's.
That way you can have light and still charge of the AC side of your coil.

Actually i doubt it. I o-scoped mine and found following:

The secondary has one single large unipolar pulse -no swing
That pulse would light only half of the FWBR, at leas only one half decently.
And the other half - not so brightly lit - would only increase the drain from the source (our powering cell)

But we should see?

I would allso put a rectifier across the emitter and collector of the 2n2222 and the 2n3055 for charging other caps or batterys.

You drain too much, and the consumption will increase, draw to little and it won't get the receiving battery up on time...

IMHO

all matter of overdone (fiddling?) tunning.

[StevanC]

No.

The capacitor converts the radiant.

Regards.

Yes,

RE comes in and is no more -> becomes 'normal' with about ~130%

should express it more precisely...

[StevanC]

I took the big 2" toroid coil and put it in my 'inverted joule thief' circuit. It worked great! Then I took the 555 timer circuit I had and used it to pulse that circuit. That really worked great!!! It lit up a 24" flourescent tube to full brightness on 8 volts and .75 amps. The best part was that things didn't get hot and it even charged on the back end.
Here is the video:

YouTube - Pulsed Inverted Joule Thief

Lidmotor

but it's 8 Volts, it's not 1.2V anymore?

And it's 0.75 A

6W?

Even el-cheapo china made gadgets shoot thus far?

"bang-for-bucks" ratio?

Am I killing off the fun here?

[shlodo]

No.

The capacitor converts the radiant.

Regards.

Ren is right.. The capacitor doesn't KILL the radiant, it stores the charge of the HV potential and converts it to current. When we cap pulse a battery we are hitting it with normal electricity. So it will be charged with Positive Energy.

Bedini uses this technique when the radiant is not enough on its own to charge the battery. But if we can we want to create as much radiant as we can (lots of HV pulses) and put it straight into the battery. This will cause a negative charge on the battery.

-shlodo

[shlodo]

Success Charging Large Batteries!

@ Everyone


Ive been doing some testing on my JT circuit and Im having some success charging large batteries (7.2Ah) that I wanted to share!

I had a 12V battery that has been sitting in the shed for six months that was pretty much dead (it was sitting on 5v). It wouldnt power anything. Now it has been fully recovered by the negative charge and will now accept the charge of a standard 1Amp battery charger!

Ive been charging and experimenting with it periodically for the past week. Initially I was charging it with a bridge rectifier off the C & E of the 2n3055, but now ive gone Bedini charging style, with a diode off the coil.


When i first hooked it up, the voltage across charging battery showed very high (40v) and quickly dropped as it charged and impediance increased. (freaked me out a bit, but its normal )

Heres the vid I shot earlier in the week (was using the bridge in this vid):
YouTube - Joule Thief Charger Recovers Dead Battery 04

Ive found the Bedini style charging seems to be better and Im noticing that by changing he resistance in the circuit u can charge to a higher max voltage.
I remeber Bedini talking about matching the impediance of the machine to the battery.
A lower resistance charging seems to be higher but u pay more in amp draw.

At 1K ive managed to get amp draw under 700mA

Anyway here's the results of my latest test, check out the graph ive attached:

Time----Run Battery----Charge Battery
0--------12.07--------------11.04 Sitting Voltage
5--------11.87--------------11.91 Start
10-------11.85--------------11.9
25-------11.82--------------11.92
27-------11.80--------------11.93
34-------11.79--------------11.93
37-------11.77--------------11.94
45-------11.75--------------11.94
48-------11.74--------------11.94
55-------11.72--------------11.95
150------11.53--------------11.98
175------11.43--------------12 Stop
235------11.74--------------11.6 Voltage Test 1 hour later



In the graph the Red line is the charge battery, the Blue is the run.

Charge Battery rose 0.56V
Run Battery dropped 0.33V

It seems we got more volts out than we put in, plus a lot of heat and noise was created in the circuit. Promising results for OU so far! will have to do proper load tests..

-shlodo

[Lidmotor]

Light vs Energy Spent

but it's 8 Volts, it's not 1.2V anymore?

And it's 0.75 A

6W?

Even el-cheapo china made gadgets shoot thus far?

"bang-for-bucks" ratio?

Am I killing off the fun here?

I guess if you haven't been with this project for very long it does seem like we are not getting anywhere here. These circuits that we are working on are radiant energy chargers not just light producers. Wal Mart does not sell these--not yet. When I said that the light circuit was drawing .75 amps at 8 volts that does not consider the lumens of light being produced nor the amount of energy being recovered at the charge battery.
When I started this project over as year ago with the " Imhotep Radiant Oscillator Lite" we were drawing 3 amps at 12volt to get the amount of light that I showed in the video. That was OK because Peter Lindemann and Imhotep had set up an energy recovery circuit on the back end. Alot of people have worked hard to get us to the point where we are today. These aren't like "el cheapo China made gadgets" but I guess to some that is what they look like. I wonder what they will cost when they hit the Wal Mart shelf.

Lidmotor

[theremart]

Ok.... want to move to a larger JT

I have built a small JT, and now want to move up to a larger one. I tried to just copy the circuit as before but my first transistor blew but I wanted to try slayer's circuit. I don't understand the -A -B -C +A +B +C in the section i have circled in red below. It appears to be the coil, are you using a trifilar coil?

Thanks!

[slayer007]

I have built a small JT, and now want to move up to a larger one. I tried to just copy the circuit as before but my first transistor blew but I wanted to try slayer's circuit. I don't understand the -A -B -C +A +B +C in the section i have circled in red below. It appears to be the coil, are you using a trifilar coil?

Thanks!

The +A & +B are the begining of the coil the -A & -B are the end of the coil.

It is a trifilar coil and +C & -C are the pickup coil or winding.

I would suggest using a ferrite rod for the core.
I think you would get a lot better results with a ferrite core than I did with an iron core.

[theremart]

Thanks Slayer!

Guys,

I want to let you know of a cheap spot for 2n3055 transistors.

Transistor To-3 100v 15A 115w BEC | Distributed By MCM | 2N3055

They are 90 cents each get over 10, and they are 80 cents each shipping was like $10.00 but still was a great deal on Toshiba 2n3055 transistors.

I have been using them in my Solid state setup and they are working great.

FYI

[Guruji]

Big joule thief

Hi Slayer007 thanks for that interesting circuit that you've made.
Is it possible that it can be done self-running with caps or other schematic?
It would be a great achievement.
Thanks

[slayer007]

Hi Slayer007 thanks for that interesting circuit that you've made.
Is it possible that it can be done self-running with caps or other schematic?
It would be a great achievement.
Thanks

Thanks Guruji

Maybe some day if we all keep trying differant things with it.

I have a super cap comming from ebay 2.5v 10 farad.
I'd like to see how fast that will charge off the circuit them see how long it will run the circuit.

[theremart]

Large JT now working.

Duh I made a rookie mistake I had my trigger coil swapped around so it would not trigger, swapped that around and is running awesome now! I really like the way this is charging so far.

I have noticed putting a neo around the coil bumps up the frequency very high so really hits target battery with alot of juice. I am trying this with nicad batteries, and it seems to love them. This appears to be just the ticket for my solar cell setup....

Thanks Slayer007 for all your help and posting the circuit!!!!

[slayer007]

Duh I made a rookie mistake I had my trigger coil swapped around so it would not trigger, swapped that around and is running awesome now! I really like the way this is charging so far.

I have noticed putting a neo around the coil bumps up the frequency very high so really hits target battery with alot of juice. I am trying this with nicad batteries, and it seems to love them. This appears to be just the ticket for my solar cell setup....

Thanks Slayer007 for all your help and posting the circuit!!!!

No problem theremart

Great its working for you.
What did you use for your core?

[theremart]

Core...

No problem theremart

Great its working for you.
What did you use for your core?

My favorite core is ferrite beads. You can add and take away to make the unit run optimally

Medium Toroidal Ferrite Core (Pkg of 5)-The Electronic Goldmine

5 for a dollar is a great deal....