Basic Electromechanical Relay Guide

In this video I telling about replays. A relay is an electromechanical device that consists of a coil and metal switch. Relays can have different connections, which called singe - throw, double throw and other connection. Relays also have diferent pole types. Relay also have voltage when they run.

In order to demonstrate how a relay works, we need build circuit. What do we need?

Jumper wires male-male

Jumper wires female-male

Power supply AC adapter for six volt one amper

Bottom

Relay five v one amper run

Breadboard

Two LEDs - different colors

Capacitor one thosand microfarad

Assemble the circuit like the picture.

You will see the on schem how it works. When you push the button, currents are flowed trow coil and capacitor, and then the coil switch relay. Current stops flowing through the coil, from batery. Capacitor is discharged and switch the relay.

Capacitor will be recharged again and again, and you see the relay start noise.

If you do not hane capirot one thousand microfarad, you can take less amonnt capitors and set those parallel.