What is the function of a rectifier?

A rectifier serves the crucial function of converting alternating current (AC) to direct current (DC). This process is essential in various applications, especially when it comes to powering electronic devices that require a steady and unidirectional flow of electricity.

AC voltage alternates its polarity and varies in amplitude over time, whereas DC voltage maintains a constant polarity. Many electronic circuits and devices operate on DC voltage because it provides a stable source of power, which is necessary for the proper functioning of components such as semiconductors, batteries, and integrated circuits.

Rectifiers can be found in various forms, including half-wave rectifiers, which only allow one half of the AC waveform to pass through, and full-wave rectifiers, which convert both halves of the AC waveform into a usable DC output. In essence, the primary purpose of a rectifier is to ensure that the electrical energy supplied to devices is in the needed DC form, making it a fundamental component in power supply systems and electronic devices.