Loading...

How a Joule Thief Works

737,374 views

Loading...

Loading...

Transcript

The interactive transcript could not be loaded.

Loading...

Loading...

Rating is available when the video has been rented.
This feature is not available right now. Please try again later.
Published on Jul 5, 2012

Step-by-step run through of how a Joule Thief circuit works. Includes how all the parts, the 1.5 volt AA battery, the resistor, the transistor and the ferrite core with its two coils of wire work together to build up energy in a magnetic field which then collapses to produce enough voltage and current to light an LED (Light Emitting Diode.) This includes explanations of the feedback that rapidly opens the transistor between base and emitter to open up the emitter to collector too. And also the feedback that slams the transistor shut again.

See also this video on How to Make a Joule Thief (called Make a Joule Thief for Zombie Batteries):
http://youtu.be/B61DU7yEsPM

For how to make a joule thief power a compact fluorescent light (CFL) watch "How to Make Joule Thief Light a CFL - Jeanna's Light":
http://youtu.be/FkLET8MhRbU

For all sorts of measurements and demonstrations of my joule thief powering a CFL watch "Fun with Joule Thief Powering a CFL":
http://youtu.be/yz_99oVMbSI

And also this webpage about Joule Thiefs:
http://rimstar.org/sdenergy/joule_thi...

Follow behind-the-scenes on:
Twitter https://twitter.com/#!/RimStarz
Google+ https://plus.google.com/1163951251362...
Facebook https://www.facebook.com/rimstarorg

http://rimstar.org

Loading...

When autoplay is enabled, a suggested video will automatically play next.

Up next


to add this to Watch Later

Add to

Loading playlists...