What is the main function of rectifiers in electrical systems?

The main function of rectifiers in electrical systems is to convert alternating current (AC) into direct current (DC). This process is essential in various applications since many electronic devices and circuits require a steady and unidirectional flow of current to operate correctly.

In doing so, rectifiers utilize diodes, which allow current to flow in only one direction. When AC voltage is applied, the rectifier conducts during the positive half of the AC cycle and blocks during the negative half, effectively shaping the electrical output into a form usable by DC-powered devices. This conversion is critical for power supplies, battery chargers, and various electronic devices that rely on stable DC voltage for their operation.

Understanding the primary role of rectifiers highlights their importance in ensuring that AC power from the grid can be safely and effectively transformed for the needs of modern electronic equipment.