Functional devices are key components in electronic systems, serving specific purposes to enable the functionality and operation of various applications. These devices are designed to perform specific tasks or functions within a system, contributing to its overall performance and efficiency. Examples of functional devices include: Relays: Electrical switches controlled by an electromagnet, used to control circuits electronically by opening or closing contacts. Sensors: Devices that detect changes in physical parameters such as temperature, pressure, light, or motion, and convert them into electrical signals. Transducers: Components that convert one form of energy into another, such as converting mechanical movement into electrical signals (e.g., in accelerometers). Amplifiers: Circuits that increase the strength or amplitude of electrical signals, commonly used to boost weak signals or provide power to speakers in audio systems. Controllers: Devices that manage and regulate the operation of other devices or systems based on predefined criteria, ensuring proper functioning and coordination. Converters: Components that convert signals from one form to another, such as analog-to-digital converters (ADCs) or digital-to-analog converters (DACs), used in signal processing and communication systems. Functional devices play vital roles in a wide range of industries, including telecommunications, automotive, aerospace, consumer electronics, and industrial automation. They are essential for controlling processes, measuring parameters, amplifying signals, and converting energy, enabling the functionality of complex electronic systems and devices. https://www.building-controls.com/brand/functional-devices