A relay is an electrically operated switch. It consists of a set of input terminals for a single or multiple control signals, and a set of operating contact terminals. The switch may have any number of contacts in multiple contact forms, such as make contacts, break contacts, or combinations thereof. A Relay is a electrically operated switch. Used for many different applications. Allows for a low voltage circuit to operate a higher voltage circuit. Can be used to monitor the status of electrical equipment (such as a motor) Relays are electrically operated switches that open and close the circuits by receiving electrical signals from outside sources.
Relays are electric switches that use electromagnetism to convert small electrical stimuli into larger currents. These conversions occur when electrical inputs activate electromagnets to either form or break existing circuits. Relays are the essential component for protection & switching of a number of the control circuits & other electrical components. Based On Operation Principles EMR (Electromechanical Relay) SSR (Solid State Relay) Hybrid Relay: Reed Relay. Electrothermal Relay Thermal Relay.
Applications of Relays in Electronic Circuits Relay Drive by Means of a Transistor. Relay Drive by Means of SCR. Relay Drive from External Contacts. LED Series and Parallel Connections. Electronic Circuit Drive by Means of a Relay. Power Source Circuit. PC Board Design Considerations.
