Joule Thief

[hidave]

@conrad 

thanks for the reinforcement of the doctorines.

Back to basic. I hook up a 13w CFL to the house electrical with my trusty meter. Readings is I=.21, V=120, P=25W, R=566 ohms.

Now with a basic fuji camera JT, I have a gutted 13w CFL powered by AAA battery. Readings is I=.3, V=1.5, P=.675W, R=13 ohms.

Wow, quite a difference. Now moving to a Jeanna's CFL JT with 3.5" ferrite toroid, I am able to light the CFL to full brightness with .2 amp draw.

But who wants to fiddle with little lights right.?.

If transistors burns it is because of their limiting and linear nature.

Back to basic, E=flow of electrons through a conductor right? ROLF


So if we can light a 13w CFL with 3% P using JT versus conventional then why can't we scale it up to more usable real world applications?.
Solar panels are now affordable, Deep cycle Batteries can be had for free.

The solution is simple, Tesla coil. Good old pancake tesla coil. Simple, proven, robust.
Lidmotor has a cool video of cfl excited by a mini Tesla. 
http://www.youtube.com/user/Lidmotor#p/u/20/DydhosayGLg

What a waste of time, $$ and energy. Tesla already showed us the way. Use high potential high frequency to excite our lights.

Now comes the question. What is the difference between flat pancake tesla coil and tower tesla coil in terms of performance?.

Now we have to construct this coil accordingly to how Tesla had instructed. Copper coated iron wires with cotton insulation.

[magnetman12003]

Hi Guys,

Can you take a look at this circuit and give me an idea if its worth further looking into.  I am running it on one 1.5 volt AA alkaline battery and have not killed the battery yet. The power used is a fraction of one watt. The input power is also a fraction of one watt.  All components are rather large.

http://www.youtube.com/watch?v=tQ_fKHjDo0E

Tom

[resonanceman]

@conrad 

thanks for the reinforcement of the doctorines.

Back to basic. I hook up a 13w CFL to the house electrical with my trusty meter. Readings is I=.21, V=120, P=25W, R=566 ohms.

Now with a basic fuji camera JT, I have a gutted 13w CFL powered by AAA battery. Readings is I=.3, V=1.5, P=.675W, R=13 ohms.

Wow, quite a difference. Now moving to a Jeanna's CFL JT with 3.5" ferrite toroid, I am able to light the CFL to full brightness with .2 amp draw.

But who wants to fiddle with little lights right.?.

If transistors burns it is because of their limiting and linear nature.

Back to basic, E=flow of electrons through a conductor right? ROLF


So if we can light a 13w CFL with 3% P using JT versus conventional then why can't we scale it up to more usable real world applications?.
Solar panels are now affordable, Deep cycle Batteries can be had for free.

The solution is simple, Tesla coil. Good old pancake tesla coil. Simple, proven, robust.
Lidmotor has a cool video of cfl excited by a mini Tesla. 
http://www.youtube.com/user/Lidmotor#p/u/20/DydhosayGLg

What a waste of time, $$ and energy. Tesla already showed us the way. Use high potential high frequency to excite our lights.

Now comes the question. What is the difference between flat pancake tesla coil and tower tesla coil in terms of performance?.

Now we have to construct this coil accordingly to how Tesla had instructed. Copper coated iron wires with cotton insulation.

hidave

I do not think a Tesla coil will get you where you want to go.......and I am not convenced that  cotton insulation is required.........although copper coated iron wire does sound interesting.
A Tesla coil as I understand it has to be loosely coupled in order for the secondary to run at high frequency.  This loose coupling makes it inefficient
WIth that said....... with the exception of the Tesla coil......I think you are on the rightr track



Now someone  said  it was hard to get a 12V JT to work.
MOST of my JTs are 12V and have been for several years
All you need is a larger  resistance on your base resistor and you are good to go.
I do use a heat sink on my JTs........not that I really need to most of the time. 
I usually use 2 or 3K ( base resistor ) although 1K would probably work ........but then you probably would really need that heat sink.

I use a TIP2055 for most of my JTs......it is similar to the 2n2055.....but from my experience alot more forgiving


gary

[hidave]

hidave

I do not think a Tesla coil will get you where you want to go.......and I am not convenced that  cotton insulation is required.........although copper coated iron wire does sound interesting.
A Tesla coil as I understand it has to be loosely coupled in order for the secondary to run at high frequency.  This loose coupling makes it inefficient
WIth that said....... with the exception of the Tesla coil......I think you are on the rightr track



Now someone  said  it was hard to get a 12V JT to work.
MOST of my JTs are 12V and have been for several years
All you need is a larger  resistance on your base resistor and you are good to go.
I do use a heat sink on my JTs........not that I really need to most of the time. 
I usually use 2 or 3K ( base resistor ) although 1K would probably work ........but then you probably would really need that heat sink.

I use a TIP2055 for most of my JTs......it is similar to the 2n2055.....but from my experience alot more forgiving


gary

thanks for the info.

The idea is to construct a system that is very robust, and one that will handle real work load with no maintenance.

I had wounded a crude flat pancake and it's not very exciting, for now at least.

I need to produce currents of high potential, high frequency, and high regularity from 12v battery.
I will have to test the CFL to find the sweet spot for most effeciency.

I am thinking of 1000v @ 20 khz. An oscillator will be best.

For the HV generator, it is necessary to stay away from transistors, resistors etc. They are wasteful and can not withstand the high pressure of the high frequency current. Much like extreme pressure gas, you want to eliminate all governing or restrictive mechanisms. The oscillator does this jobs ultra effeciently.

Cotton dielectric produces desirable phonemomena in lighting. When the electromagnetic conductor and dielectric inductors are polar in function and combined in parallel, upon electrical stimulation there is created an oscillating circuit. The dielectric is the other half of electricity, it is the manifestation of electricity over the surface of the conductor, the skin effect.

[Pirate88179]

It sounds a lot like Nathan Stubblefield's research from a long time ago.  His earth batteries used cotton insulation on the iron wire.

No one has been able to completely replicate his work to date that I am aware of.  (He was a good friend of Tesla's)

Bill