What is the main function of a rectifier in aircraft electrical systems?

The main function of a rectifier in aircraft electrical systems is to convert alternating current (AC) to direct current (DC). This is important because many of the electrical components in an aircraft, such as avionics and lighting systems, require DC power to operate. By converting AC to DC, the rectifier ensures that the electrical system can provide the necessary power to these components.

Convert alternating current (AC) to direct current (DC)