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Relay

Relay is an electrical switch component that is used to control load which requires more power and also the devices which can not be directly run by the power provided by digital or analog circuit boards.

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Basically a relay is made to work as a switching component when a very small voltage is triggered into it. A relay consists of two parts. One for accepting voltage from a small circuit and the other part simply completes the continuity of another circuit into which the main load is connected.

There are two different types of relays based on their process of working.

  • Mechanical relays: A mechanical relay consists of an electromagnet that accepts a small current and has the power to pull a metal plate that completes the circuit for a heavy load. These relays can work for a longer time and are used for heavy applications but are less durable compared to solid-state relays.
  • Solid-state Relays : A solid-state relay consists of diodes, phototransistors, etc which makes the complete relay.
Application of Relays :

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