This presents various types of rectifiers and their functions. Rectifiers are electronic devices that convert alternating current (AC) into direct current (DC). The table includes different types of rectifiers such as controlled rectifiers, rectifier inverters, turn-off rectifiers, rectifier bridges, Schottky rectifiers, half-wave rectifiers, full-wave rectifiers, and precision rectifiers. Each type is associated with a symbol and a brief description of its function, providing a quick reference for understanding the different rectification techniques and their applications.