Joule Thief

[slayer007]

Hi All

Found this interesting invention by Ann Ainslie using Back EMF that appears to be similar to the JT. You might have seen it before but I think it's worth checking out.

http://www.wipo.int/pctdb/en/wo.jsp?wo=1999038247

ScienceMan

Hello ScienceMan

I started a thread a couple days ago about her called MAGNETIC FIELD MODEL .

She also has a web site.

I read some of her patent it looked like she was capturing some of the energy before it went to the motor and sending it back to the source battery.

[hazens1]

I think there seems to be some confusion on the high voltage setups that I have done. Since my amp draw was going past 75ma which is the most I like to push the 2n2222 since it starts to get warm. Don't wan't to burn anything out. So I switched to using a TIP31 npn which is available at Radio Shack and it is able to push 3amps so it should handle 1-1.5 amps without heating up at all. Also, my high voltage circuit does not use any capacitors at all. If I place a cap (0.1uf) parallel to the resistor (500 ohm) it drops the voltage down to about 100 volts. So anyone trying this setup, try a larger transistor and take the cap out. Here is a diagram attached. Thanks @ xee2 for posting the original that I have modified to represent the circuit that I got 250 volts from. Do NOT place an LED on this one unless you want to toast it. Or unless you have at least a dozen in series placed after the rectifier, If you place them non rectified you should place 2 rows opposite polarity to take the voltage from both directions. Hope this helps 

Also, if you don't have a 500 ohm or preciscion pot, you can place 2 x 1k in parallel to get 500 ohm.

Edit: I added some pics of the 7-7-70 coil which after recounting it is actually 7-7-71 
The pic with the captions shows where each of the wires connect to in the circuit and the arrows pointing into the center of the toroid shows the coil starting position for each of the 3 coils and the arrows outside the toroid show the winding direction. I always wind over the top of the toroid into the center then back around from under the toroid. Have fun!

[ScienceMan]

@resonanceman and @electricme

Thanks....

@electricme

Yea its amazing how when you put positive thoughts into something, things pop up all over the place...
And yes I must make sure I don't get carried away with this much more valuable stuff and forget my school work ha ha

@slayer

Hello ScienceMan

I started a thread a couple days ago about her called MAGNETIC FIELD MODEL .

She also has a web site.

I read some of her patent it looked like she was capturing some of the energy before it went to the motor and sending it back to the source battery.

Haha was also going to start a new thread on the MAGNETIC FIELD MODEL but somehow in terms of her actual device (invention) I think we should post it here because it relates greatly to the JT we have in this thread. In terms of the theory behind Ann's invention and what she talks about (the magnetic field etc.) will be cool on your thread  .

As far as I understand the patent (not much  ), she captures the back EMF from the disturbance in the magnetic field when the FET switches on and off... not sure how she captures it in a seperate circuit to use on a different device or load....

Good Stuff!!!

ScienceMan

[TheNOP]

Doesn't this waste energy to a larger degree - it's got a path straight through, so to speak.

2 resistors in series hooked to the power source like that, is call "voltage divider"
it is a crude and inefficient way to split the source voltage across resistor.

not only does it split the voltage, it also limit the current.
I = E / R1 + R2
I is the same across each resistors.
the current passing in R2 is the waist.

This  could  also  be a way to add grunt to a small JT

yes
both circuits are equivalent except for the diode and the base feeding.
R1 is only to limit the current in her circuit.

same for the jt circuit, feed the base by other meens, or, solve the self feeding to base voltage problem and limit the current passing Q1(transistor) so it don't blow up.

@all, mouse trap went off again, make  Dtoll = 14 now, just for 2 days work.

you should make mices stew and sell to chineses, i eard they like that delicacy. 

[innovation_station]

im just

BLOWEN AWAY....   how far we have come ...  me i dont care bout the rings ... or this teck ...   

this was all  left for thos that comprehend it ... 

from who ...  but the MASTER of course ... 

if you want a lie ...   go reserch the others .... lol if you want the TRUTH..   go to THE SOURCE ... 

he will never leave ... 

H!S TEAM!!


MK1 BRO ...  i hope all is well ... 

dont worrie tho .. 

were there now ....      they know now ... 

it is time to advance in life ...  and the SHORT  BUS .... IS FULL ......LOL 

thats ok  WE GOT THE FAST ONE .....


PEACE ALL  ....    i wish i could share my feelings on growing ...  amazing ....  some kno ....  not many tho 

LIFE IS JUST UNMATCHED BY ANYTHING KNOWEN TO US ..... 
 
THE BEST OF YOU .......   THE FOOO...

http://www.facebook.com/ext/share.php?sid=75069469848&h=kG23B&u=UMxgg&ref=mf

MY HEAD IS GIVEING ME LIFE OR DEATH .....   BUT I CANT CHOOSE ..... LOL  ya right....   

i got another confession my FRIEND  im no fool ......  IM GETTING TIRED OF STARTING AGIN......... SOME WHERE NEW ....

WILL YOU WANT TO RESIST ....  DONT BE ABUSED ......