Relays are essential components in electrical and electronic circuits, used to control a circuit by a low-power signal. They function as switches that open or close the circuit when activated, offering a secure way to manage high-voltage or high-current devices with low-voltage control signals. In this relay operation guide, we will explore the basic functionality, types, and best practices for operating relays.
What is a Relay? A relay is an electromagnetic switch that allows a low-power signal to control a higher-power circuit. It consists of a coil, which, when energized, creates a magnetic field that activates a switch mechanism. This process allows a current to flow through the connected load circuit. Relays are commonly used in applications where isolation is required between the controlling circuit and the controlled circuit, such as in automotive systems, home appliances, and industrial machinery. Types of Relays There are several types of relays, each suited for specific applications. Here are the most common types:
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