POCKET THIEF

This is a Cadillac Joule Thief with six features.

Fits comfortably into a pocket.
It is built of SMT components on a IC socket platform.
It can drive different color and size LEDs.
It does Suck a Battery _almost completely Dry
It will be used to test different brands of AA battery capacity.
Yes, it can be used as a Continuity Tester

Sorry, but this project requires advanced soldering skill to build !

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Step 1: Assembled Thief

Bright Pocket Flash Light

Easy to hold
Pointing toward the iCamera
Aim a narrow beam 10' across the room to see the LCD weather station
Close up of LCD station illuminated by a single LED from 10' across the room
LED lightning a tall Victorian ceiling
Detailed component descriptors

beehard44 says: Dec 18, 2011. 11:00 AM

i somehow got the idea of making my own joule thief IC...
I like how you made the main part of the circuit detachable

iceng (author) in reply to beehard44Dec 18, 2011. 11:31 AM

Thanks :-)
Its for a future light project that I want to make using it....

A

irlolcopter says: Nov 10, 2011. 2:20 AM

"They feature a built-in synchronous rectifier, which improves efficiency and reduces size and cost by eliminating the need for an external Schottky diode."
Is a quote from the MAX1675 website.
is it possible you could have a go at tweaking this circuit to see if it could be further simplified?
just wondering

iceng (author) in reply to irlolcopterNov 10, 2011. 4:45 PM

Thanks for reading the details.
Yes.... it works without the extra diode however
They also say the Schottky diode helps the unit to start at a lower voltage.

Isn't that the point when sucking energy out of a battery ?

A

extremeseeker says: Oct 9, 2011. 6:20 PM

could you use it to transfer electicty

iceng (author) in reply to extremeseekerOct 9, 2011. 9:29 PM

It IS transferring electricity from the battery to the LED

bajablue says: Oct 9, 2011. 3:05 PM

Voted! ;-)

iceng (author) in reply to bajablueOct 9, 2011. 4:46 PM

You are very Kind.

I'm approaching a just few bits away from where you
created a healthy serving for my centennial soriee :-D

TheHawkeye says: Oct 8, 2011. 2:00 PM

Great project. What if you could shrink it into a broach, necklace, or earrings?

iceng (author) in reply to TheHawkeyeOct 8, 2011. 11:20 PM

Thanks for the compliment.
Some time ago some one made earrings that lit and twinkled.
Ingeniously the battery was a button cell on the inside of the clasp.

A

extremeseeker says: Oct 8, 2011. 6:22 PM

could you use it to store electricity?

iceng (author) in reply to extremeseekerOct 8, 2011. 10:46 PM

Only for a few microseconds, it is not the kind of storage device you seek.
This thing works like an other jewel thief, it uses a magnetic coil or coils
to transform voltage and current to suit the LED in the circuit.

A