In this project I will show you how I created a very popular and easy to build circuit, the joule thief, in order to power LEDs with voltages from 0.5V to 2.5V. This way less power from the used supercapacitor is unusable.
Step 1: Watch the Video!
The video should give you all the information you need to build your own joule thief. The next steps are just additional information to make your life easier.
Step 2: Order Your Parts!
The circuit itself only requires 3 components. Here you can find links for all of them.
BC637 NPN BJT: http://amzn.to/29sefq0
1kΩ or 2kΩ Resistor: http://amzn.to/29A1HAK
Ferrite Toroid Core: http://amzn.to/29yiRiM
Enameled copper wire: http://amzn.to/29wGG8f
BC637 NPN BJT: http://rover.ebay.com/rover/1/711-53200-19255-0/1?...
1kΩ or 2kΩ Resistor: http://rover.ebay.com/rover/1/711-53200-19255-0/1?...
Ferrite Toroid Core: http://rover.ebay.com/rover/1/711-53200-19255-0/1?...
Enameled copper wire: http://rover.ebay.com/rover/1/711-53200-19255-0/1?...
BC637 NPN BJT: http://amzn.to/29sfdTa
1kΩ or 2kΩ Resistor: http://amzn.to/1E9uEhN
Ferrite Toroid Core: http://amzn.to/29sg9XB
Enameled copper wire: http://amzn.to/29sfxkU
Step 3: Build the Circuit!
After you wound your transformer, the way it was demonstrated in the video, you only need to create 5 solder joints according to the schematic to connect the components to one another. Feel free to change the value of the base resistor like I demonstrated it in the video.
Step 4: Success!
You did it! You just created your own Joule Thief!
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