Joule thief

Some fun projects you might want to try: 4069 Theremin A very simplistic Theremin, using only one 4069 IC. The reference oscillator uses a 455KHz ceramic resonator, and the varying oscillator uses …

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Make a SUPER Joule Thief Light!: A joule thief is a simple circuit that can take 1.5 volts and put out as much as 5 volts. It can light an LED super bright! But have you ever heard about getting 120 volts out of a AA battery? The Super Joule Thief can do just that! It is perfect fo…

Make a Joule Thief Coil Without a Ferrite Toroid: There are many different articles and videos to be found online that will teach you how to build a Joule Thief circuit and power LEDs off of dead batteries. Most of them, however, call for some form of coil made using a ring, or toroid, made of fer…

Easy Joule Thief Soldering Project: The Joule Thief is a clever little circuit that can light a LED with a battery that is nearly dead. It does this with a pair of opposing magnetic fields. I like this circuit because it is simple to build, yet demonstrates some very complex electrica…

Joule Thief for Me: Finally , I made it !!!I wanted to make this nice circuit as soon as I heard of it.If you don't know it , it's OK.Read about it : Joule ThiefSimply , it's a simple boost converter. DC voltage step up circuit.I used this instructable as a guide.https…

skema joule thief 1,5v to 220v ac led light

An idiot's techno-blog

This 1.5 V Joule Thief circuit can turn ON one LED. The circuit do not use a toroid coil, but it is possible to turn on a common red, green or yellow LED

Transformerless Adjustable Joule Thief: Did you have problems winding the toroidal transformer of a regular joule thief? If so then this instructable is for you! And if not it is also an interesting circuit to see. In this instructable I will show you how I made the simplest joule thief I…

Super Joule Thief by xee2

Joule Thief, Slayer Exiter, Tesla Coil, Tesla Spule by xee2

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Bicycle Cell Phone Charger (Wind Turbine With Build in Battery): I go very often to cycle in the nature where is no electricity, and during a long bike tour my phone usually discharges. These smartphones have a large capacity but its consumption is big too. I made a few weeks ago another bike turbine for the Bicy…

This is a 1.2-volt single transistor flyback (Joule Thief) circuit that features a third coil. With it, flash duration and brightness is much enhanced, even with just a 10uF capacitor, as can be seen in the schematic. Description The parts to the right of T1 form a simple Joule-thief (‘Blocking’ oscillator) circuit which boosts the 1.2vRead More

The Joule Thief Circuit is a voltage booster circuit which converts a constant low voltage input into a periodic output of a higher voltage. This circuit can be most often seen lighting an LED with an almost dead AA battery. The peaks in voltage occur rapidly, causing the LED to flash at a very fast rate. However, the LED appears to be constantly lit to the human eye due to the persistence effect.

"Joule Thief" - No IC and No Transformer: Yep, no transformer and no hard to get IC. But, ... two transistors and other parts are required. I actually found this circuit by accident while roaming Colin Mitchell's Talking Electronics website (talkingelectronics.com). This website is very ric…