Forgive me if this has already been discussed elsewhere in the forum?
If so we can delete this and someone can direct me to that thread.
I'd like to know what the largest Joule Thief ever made is, if any know,
And would like to clarify if there are any size limits, and if so, why?
Basically, can one can be made to handle 30 ampres of 30 milivolts?
Such as the out put of a small N-machine?
I have every reason in the world to assume that if a Joule Thief works
in minature, than it works period, it is after all, working on a principle.
It is but a modified transformer.
The people in the joule thief thread would be the best place to ask this. However, I think the limitation would be finding something that could switch 30 amps 5000 times or more per second
My Soundstream car amplifier power supply pulses a toroid transformer with a primary of 3 turns of 3 16 ga wire in parallel with 4 mosfets in parallel at over 50 amps of 12v at 60,000 times a second. That just 1 phase of 2.
magluvin
Quote from: Foggy-Notion on January 04, 2010, 05:34:23 PM
Forgive me if this has already been discussed elsewhere in the forum?
If so we can delete this and someone can direct me to that thread.
I'd like to know what the largest Joule Thief ever made is, if any know,
And would like to clarify if there are any size limits, and if so, why?
Basically, can one can be made to handle 30 ampres of 30 milivolts?
Such as the out put of a small N-machine?
I have every reason in the world to assume that if a Joule Thief works
in minature, than it works period, it is after all, working on a principle.
It is but a modified transformer.
Foggy-Notion
In general the Joule thief thread is about getting more out of a simple circuit.
Most of the focus has been on using one AA battery
The second stage joule thief thread was created to try to take it to the next level
The biggest JT I have personally made was when I connected the primary and a secondary together and made a JT out of them.......
I only ran it a few seconds because it overloaded my meter and arced right through the insulation on my alligator clips
I also have ran many of my coils at 12 V
The 5 for $1 toroids that worked well on 1.5V usually did not do any better with 12 V
Larger stuff like flyback cores do great at 12 V
Just because the focus has been on smaller JTs so far that does not mean that there is no room for large JTs
Go for it if you want
You might end up leading us all in a new direction.
One reason I like using one AA battery ........ you can make alot of mistakes without burning stuff up ........ with higher voltages I usually fry something with each mistake I make ......and I am still pretty new at this.......I make alot of mistakes
gary
Thanks for reply.
Well I'm talking higher amps, more than higher volts.
The JT itself creates the higher volts, to my understanding.
Quote from: Foggy-Notion on January 04, 2010, 05:34:23 PM
Forgive me if this has already been discussed elsewhere in the forum?
If so we can delete this and someone can direct me to that thread.
I'd like to know what the largest Joule Thief ever made is, if any know,
And would like to clarify if there are any size limits, and if so, why?
Basically, can one can be made to handle 30 ampres of 30 milivolts?
Such as the out put of a small N-machine?
I have every reason in the world to assume that if a Joule Thief works
in minature, than it works period, it is after all, working on a principle.
It is but a modified transformer.
A Joule thief circuit has no size limits. But, you will be limited by the components used. The main limitations are:
1. voltage limit of coil winding insulation
2. the saturation point of the transformer
3. the transistor voltage and current handling limits.
Many transformers will handle 30 amp pulses, even the 3" toroids.
the real challenge would be to get energy from an earth battery not AAA's to obtain a greater output i can't cut to the chase myself being where doing so is absolutely dangerous
good luck