Diodes, Rectifiers are semiconductor devices that convert alternating current (AC) to direct current (DC) by allowing current to flow in only one direction. They are essential in power conversion, voltage regulation, and signal demodulation applications. Commonly found in power supplies, battery chargers, and motor control systems, rectifier diodes come in various types such as standard, fast recovery, and Schottky, each offering different performance characteristics. Their efficiency and reliability make them crucial components in modern electronic circuits.