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.
Step 1: Get the Parts
You will need:
2N3904 or a BC547 NPN silicon transistor
1k ohm resistor
Soldering iron (optional)
Solderless breadboard (optional)
Step 2: A Word Before You Begin
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)
Step 3: The Circuit
Plrase refer the image. Here, the toroid is replaced by a transformer, which is actually a small inductor.
Step 4: Winding the Inductor
Take a magnet wire and simply wind about 10 turns around it. Thats all! Now, connect the parts as described in the circuit.
Step 5: Testing
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.