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Sunday, April 14, 2013

Simple LED Torch



This is a simple LED torch.The specialty of this circuit is this circuit helps you to  operate your torch for many hours.Here I have used 2W LED.Through this circuit you can light up your torch about one month.Here I have used a common IC 7555.This circuit operates with 6V But if you like to operate this circuit with 9V or 12 V you have to change R3 .If you use 9V use 470 Ohm.If you use 12V use 560 Ohm.








Note


# Build this circuit on a PCB
# Don't use NE555 instead of 7555
# Use alkaline batteries

2 comments:

Colin Mitchell said...

Why use a chip. Just connect the LED to a resistor !!!!!

Zam said...

But this circuit can save your power .
I don't know whether you have seen leading mobile phone companies use this technology they have applied this method for their screen back light. then tell me are they fools?

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