What is the primary function of a rectifier?

The primary function of a rectifier is to change alternating current (AC) into direct current (DC). This process is crucial in various applications, as many devices and electronic circuits require a steady DC supply to operate correctly.

In practical terms, a rectifier typically uses diodes, which only allow current to flow in one direction, thereby converting the bidirectional AC signal into a unidirectional DC signal. This transformation enables the power supply for various electronic devices, which often rely on DC for their operation.

Understanding the principle behind rectification is essential when designing electrical systems, as it ensures that devices receive the appropriate type of current needed for their functionality. In contrast, the other options presented relate to different functions, such as amplification, energy storage, and voltage regulation, which do not directly pertain to the primary role of a rectifier.