Difference between revisions of "Joule Thief"

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[[File:Joule_thieve.jpg]]
 
[[File:Joule_thieve.jpg]]
  
More picture will follow
+
The bread board can be assembled as followed.
 +
[[File:Joule_Bread.jpg]]
 +
[[File:Joule_oscillo.jpg]]
 +
[[File:Green_box.jpg]]
  
 
== What is happening there ? ==
 
== What is happening there ? ==

Revision as of 02:19, 13 May 2012

Goal

  • Learn a way to use end of life batteries

Level

  • You should already have done something on breadboard, it would make your life easier. But it's still nice as an introduction to it.

Component

  • A ferrite core
  • Some cable to do the solenoide
  • a resistor (We don't really care about the ohm, between 100 and 400 should do the trick :))
  • a simple led triggered by 1.4 volts
  • a PNP transistor (in this case the 2N3904)

How to

The circuit is as followed :

Joule thieve.jpg

The bread board can be assembled as followed. Joule Bread.jpg Joule oscillo.jpg Green box.jpg

What is happening there ?