What is the function of a bridge rectifier?

The function of a bridge rectifier is to convert alternating current (AC) into direct current (DC). It achieves this by using four diodes arranged in a bridge configuration, allowing current to flow in one direction during both the positive and negative cycles of the AC waveform. This conversion is crucial in various applications where DC is required, such as powering electronic devices, charging batteries, and in power supply circuits.

The process entails the diodes conducting during both halves of the AC cycle, effectively 'rectifying' the AC voltage. This results in a pulsating DC output, which is often smoothed further with filters to produce a steady DC voltage suitable for electronic applications. Understanding this function is vital in engineering, especially when designing circuits that rely on stable and reliable DC power sources.