Joule Thief

[jadaro2600]

Alright, so guys, I think we should set a goal here; perhaps something worth starting a new thread on, but because I don't have any materials to work with when it comes to being as far as some of you with lighting CFLs and neons.

I think the idea here it to be able to replace the transformer array presently in existing overhead florescent tube lights with a Joule Thief Circuit capable of utilizing a 12 volt source as it is normally what's found in smart houses, campers, and automobiles.

A transformer capable of lighting 6 12 24 48 or large florescent tubes would truly be a marvel - if it can be designed to use less sources wattage than pre-existing AC 120v setups, then the simple fact that it's a more efficient device might garner some more attention.

As it stands, there are lantern-type lights which use CFL, that come with pre-existing wiring what we are simple re-invinting the wheel for here.

I think that rather than continue to making the same thing over and over - some destingation to all of this may be in order: Thus far...There is the Bedini - jtc combination idea, as well as some other devices which may have implications for the TPU.

I've started a couple of threads which may be of relevance to this one.
The Transistor Discussion here:http://www.overunity.com/index.php?topic=6905.0
And the Blocking Oscillator Multiforms discussion here:http://www.overunity.com/index.php?topic=6931.0

Meanwhile, I've got a new jtc.
jt_attempt_8.jpg is a linear transformer consisting of two equal lengths of same gages wire twisted tighly around one another.  The interesting part of this one is that, given the circuit configuration, the LED will flash - slower if the capacitor attached to the blocking oscillator is higher, and if it is lower, it will speed up to the point of being continuously on - and then not at all if the capacitance is too small.

[electricme]

@Koen1

LOL Jim, are you bugging my appartment or something? I just told a friend how I thought we could do so
I have a few of these green blinker LEDs, they blink on and off by themselves, and as far as I've been able to
figure out they also have a little resistance buit in... I am not sure but I think there is a sort of Zener type
setup in these LEDs that only allows the thing to light up when a current of sufficient voltage and amperage
passes the resistor and the zener, and after that it has a little off time.
But I am not sure, could be less Zener and more transistor as in that it regulates its own passing current...
Anyway, the effect on throughput would seem to be similar: only pulses are passed at regular intervals.
So yeah, maybe we can use such blinking LEDs to produce the input pulses eh?

Ha ha ha, No I 'm not bugging you, I havent the experience to do that ha ha.
Here we are halfway around the earth, and 2 people have a similar electronic thought about using an identical  device in a different way than it was intensionally designed for.

I have seen a LED when connected in series with the Joule Thief secondary output coil produce ringing on my CRO's screen, when set to DC on the middle centre line, I see a + and a  - output. I must do a bit more testing.

Using a Zenner to allow pulses above a certain voltage sounds ok to me, I think the humble neon would be able to do the same, when it conducts, it would pull the voltage low, then after it extinguished, the voltage would go hi, then it would conduct etc etc, so it could be used as a switch.

Jim
   

 

[innovation_station]

now that looks like some thing i said a while ago ...

lol

i can get free engery from a battery a peice  of wire....

lol

im sure i said that some where ... lol

ist!

i am able to light a cfl for over 1 hour with a cam unit ...  with out modding the diode...  well i bet if i mod the diode it is twice as bright!! ...

lol

here is a pic of my jt led indicator installed and working properly ....  it has no effect on the mk2 coil ...  it still works fine ..

[mikem_2au]

 
just thought i would post some interesting results,

i started fresh with  a different iron powder toroid.
i tuned this similar to the way described by Mk1 on page 306
but without a pickup coil and aiming for highest ma rather than volts

also, i wind the third winding with the same amount as turns as the primary,

16 turns primary  - 4 turns secondary
                            11vdc          15.9ma

third winding                                                     10uf cap from diode to emitter

16 turns               16.87vdc      22.34ma        without cap
                           11.59vdc      39.2ma          with cap

32 turns               23.6vdc        17.5ma          without cap
                           11.3vdc        38.1ma          with cap          at this point i also get  -> 4.12vac

48 turns               28.45vdc      17.26ma        without cap
                           10.75vdc      33.6ma          with cap                                               -> 5.7vdc

i will be adding more turns tonight to see what happens.

i found it interesting the more turns i added the lower the vdc i got and the higher the vac.
i am going to have to find an online store where i can buy some better toroids to try this on.

must go read the past days post now.

mike..

[weri812]

HELLO GROUP

Mk1 your  fugi board  is like mine same battery 

i just took mine a part and mod it like  is instruction.  no cap  no flash   off swith wired on all the time. the on board neon lit fine and would nock the heck out of ya.  shorted the blk diod neon will not lite  but will lite 80 leds with resitors on a 12v
lite turn signal board.  got alot to catch up with. the three pictures that i took will show you  how bright it is about 5 times brighter than in the picture.

good working to all

God Bless
wer