Efficient Joule Thief Power Supply

Hey everyone, getting busy with your DIY projects? If your projects are LED based, you will require a power supply that is quite efficient and make sure the circuit consumes low power. A joule thief can be a solution. Only problem, its quite hard to build, especially for beginners. No worries! In this instructable, I shall teach you how to build an easy and powerful joule thief.

You will need:

An LED

2N3904 or a BC547 NPN silicon transistor

Magnet wires

1k ohm resistor

Inductor

Toroid (optional)

Soldering iron (optional)

Solderless breadboard (optional)

The original design includes a toroid as the power booster. The hardest part is to wind the wire around the toroid. So, i shall show an alternative to the toroid which is easier to use, modify and gives efficient output compared to the toroid model (as noticed by me)

Plrase refer the image. Here, the toroid is replaced by a transformer, which is actually a small inductor.

Take a magnet wire and simply wind about 10 turns around it. Thats all! Now, connect the parts as described in the circuit.

The device works great with an old 1.5v aa battery. Good luck!

If you feel the project is good, Please give me a vote. Thanks. See you soon with another instructable.