What is the primary function of a rectifier in electrical systems?

The primary function of a rectifier is to convert alternating current (AC) to direct current (DC). Rectifiers are essential components in many electronic devices and power supply circuits because many devices require DC to operate effectively. In practical applications, this process typically involves the use of diodes, which allow current to flow in only one direction, thus effectively transforming the AC input into a pulsed DC output.

This conversion is crucial because AC is what is typically supplied by electrical grids, while most electronic circuits require DC for stable operation. By changing AC to DC, rectifiers play a key role in ensuring that devices such as computers, televisions, and various types of industrial equipment receive the appropriate type of electrical power they need to function properly.