Electronics Area – Electrical and Electronics Tutorials and Circuits

 

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Recent posts

BCD Code – Binary Coded Decimal

In order to share information in digital format, it is common to use a binary or hexadecimal representations (BCD Code). There are other methods to represent this information and one of them is the BCD code.

Burglar alarm using thyristor and relay

Burglar alarm using thyristor and relay

This is a simple Burglar alarm uses a thyristor as the main element and a relay as the output device. The relay can activate a buzzer or a siren.

Binary Number System

The Binary Number System, unlike the Decimal Number System, where 10 figures are allowed (from 0 to 9), only needs 2 figures: “0” and “1”.

Automatic night light circuit with one LED (PCB)

This automatic night light circuit with a LED is simple, interesting and very easy to do. The circuit allows a better understanding of the operation of a phototransistor and thus be able to use it in other applications. (PCB)

NOR Gate – The Universal Gate

The NOR Logic gate – Truth Table, equivalent circuit. It can be implemented with the concatenation of an OR gate and a NOT gate.