Joule Thief

[electricme]

@Jeanna,

Yes when you posted  as shown below

I just want to repeat for everyone, to let the basic jt be the main circuit, but let the secondary do ALL the work. This is where the free ride comes in.

Thank you,

jeanna

@ist,
you mentioned several posts back, let the amps do the work.

I also have mentioned several times, that we need Grunt or amps to get some sort of decient output, anyway, its time to develop the JT further so those of us who want to charge up a 12v battery can do so.

Thats right, let the JT part of the circuit, create the frequencies to drive the magnetic fields in the torid.
But, I'm beginning to realise, if the output frequencies to drive the torid are not strong enough to produce a strong magnetic field, then all you will get is a weak magnetic field (ampliptude) rotating in the torid.

So we also need to strengthin this by putting some grunt (higher than Milliamps) somewhere between the JT and the torid.

I propose the JT is used to create the frequencies, as we have been doing all this time, but adding a GRUNT/POWER circuit, within the JT circuit.

When the JT is made-wound, include a 3rd wire, so it is a Bi-filiar wound device.

The 3rd wire has a direct connection to the (+) positave rail, (battery) which is switched by a [current] transister (a 2N3055 needs a higher voltage to switch on) so it could not be used at this present time, perhapse using 3 geranium transisters in parallel should do it.
The other end of the coil (3rd bi-filar that is) connects to the collectors, the emitters to the (-) Negative rail.

It is a known thing, that a transistor when switched hard on, produces little heat so it should work OK.

The 3 bases of the 3 transistors are turned on by the output taken from the (Emitter) of the JT itself.

The way I see this, the stronger magnetic field inside the torid, will produce a stronger collapse of the magnetic field, which produces a stronger output in any secondary wrapped around the torid.

   
When Iooking at the katering ignition system, there is a switching of 12v DC AMPS to saturate the primary coil, the "switch, is the ignition points" they switch the full current avaliable to the primary coil.
If the secondary coil was made differently (instead of 1 single coil) but had several much smaller coils, and all coils connected in parallel, the output voltage would be reduced, but its amps would be the sum of the output secondaries.

The photo is just a circuit to show only just the 3rd bifilar coil, how this works.
Sw1 is opened, no voltage or current flows.
If Sw1 is closed, voltage and current flows, the coil is energised, a magnetic field is produced.
When Sw1 is opened, the magnetic field collapses.

The more current or grunt that can be applied to the coil, the stronger the magnetic field becomes, the more energy is avaliable from the collapsing magnetic field when the switch is opened.
(Of corse you all know this stuff)

Where Sw1 is, the JT output is branched off at the emitter of the transister, to drive the base of the transistor/s as seen here at point B.
A 250ohm - 1000 ohm resistor between JT and 3rd coil transistors could be added.

If the emf of the 3rd coil collapsing is too much then a diode placed between C and E might have to be included.

I might have to redraw the circuit, duh.

jim

   

[innovation_station]

 

jim what can i say

bingo

ist!!

[Mk1]

@all

I finally sorted all the 16 pickups ends so 32 i color coded them.i will need insulation on those tho. But for now i get anything between 115 and 80 rectified dc volts per coil , so 16 times. my 120 volts ac neon only need on each to work real nice , i don't like maths but 16 neon on a button cell , sounds nice, but it could be better . well i guess i will try a cfl soon since i have 2 sides on that toroid i should be connecting both sides of the cfl. Nothing new here , run along !

Mark

Btw on one 1 inch core and there is room for more coils.

[innovation_station]

holy crap....   lol    16 neons on a BUTTON CELL ... LOL

I LOVE IT



JIM I MADE MENTION BOUT 6 MONTHS AGO ABOUT THE CURRENT AVABIL FROM A AA BATTERY LOL

1 of the previous investors i demo to   said a friend of his was able to get almost 26 amps at ALMOST A DEAD SHORT FROM A AA 

hummmmmm


lol



can we do both tho lol    we all have 2 hands....  i bet TRICITY  has tooo!! ...   

you could visualize this like this ...   lol 

look at your 2 hands ...  you can move them up or down ....     

why is tricity any diffrent

in fact ....     lol

i want 1000 pages in this thred ...    for the 1000 styles lol 

dont for get the 10 000 posibilitys along the wey  lol 

ist!!

gotta save a few aces for l8r ya know lol

[TheNOP]

@electricme
i suggest using a separate power source for feeding the 2N3055.
high amps won't be gentle to your jt transistor, it won't be gentle to your 2N3055 neither.

to see what i mean, take a basic jt, but change the led location.

put the led, with right polarity, in parallel with the battery.
also try in series, the led hook to one side the battery, + and/or - side, then to the wire that would normally be hooked to the battery.
polarity of the led will matter.

it will be easyer to protect the 2N3055 base when using a separate power source.
also this way the 2N3055 will not interfere with the jt inner working.


EDIT
i forgot.
when testing in series, you will need a switch to short the led intermitently, rapidly.
a jumper can be used too.