Posted by Circuits Arena on Sunday, 7 February 2016
LED Flasher Circuit For Beginners and Hobby Circuit Projects Using IC 555 is the artlcle explaining LED Flasher Circuit For Beginners: This circuit is built around one of the most popular timer integrated circuits, the 555 timer. This c...
LED Flasher Circuit For Beginners:
This circuit is built around one of the most popular timer integrated circuits, the 555 timer.
This circuit will flash the led on and of at regular intervals.
How it works:
From
left to right, the two resistors and the capacitor set the time it
takes to turn the led on or off, by changing the time it takes to charge
the capacitor to trigger the timer. Next is the 555 timer, this is
where all the work gets done to determine the time the led stays on and
off. It contains a complicated circuit inside, but since it is packaged
in the IC it can be used as a simple component.
The two capacitors
that are right of the timer are just accessories so to speak, but are
needed for the timer to work correctly. The last part is the resistor
and the led, the resistor is there to limit the current on the led so
that it won't burn.
