Electrical And Electronics

BEST EVER LED APPLICATIONS

CircuitsToday.com is introducing some simple LED circuits and projects which can be done even at home. These circuits and projects have already been tested and published along with circuit diagram, schematics, and a detailed working description for each one of them. Also go through the comment of each LED circuit article, so as to get a better understanding of the IC’s used and the modifications that can be brought to the circuit. To know the working of LED, click on the link – LED Working

1. Dancing Light

The circuit uses a 555 timer and a CD 4017 IC. The clock pulses for the CD 4017 IC are provided by the timer IC which is connected as an astable multivibrator. The pin number 14 of the CD 4017 IC is the clock input pin. When the clock pulses are fed to this pin, the 10 output pins become high one by one alternatively. When the LED’s are connected to these outputs, they also continuously turn ON and OFF according to the pulses the timer provides. Take a look at the circuit diagram in the main article.

2. Night Security Light

As the name implies, this circuit is used to make your home secure by automatically switching on a light around two hours after midnight. This is done with the help of a CMOS IC 4060. The circuit will need an LDR, TRIAC, LED’s and resistors from its design. Read more about this interesting circuit from its original content.

3. Delayed ON LED

In this circuit design, the LED connected to the output glows only after a preset time after the power is switched ON. The capacitor plays an important role in switching the transistor ON. A