What is a Rectifier?

A rectifier is an electronic component that transforms alternating current (AC) into direct current (DC) by utilizing one or more P-N junction diodes. A diode functions as a one-way valve, permitting current to flow in only one direction, a process referred to as rectification.

Rectifiers can exist in various physical forms, including solid-state diodes, vacuum tube diodes, mercury-arc valves, silicon-controlled rectifiers, and other silicon-based semiconductor switches.

What are the types of rectifiers?

The following are the types of rectifiers:

Uncontrolled Rectifier

Controlled Rectifier

How Does Rectifier Work?

A rectifier is an electrical device that converts alternating current (AC) into direct current (DC). This conversion occurs through a process known as rectification, where current (I) is allowed to flow through the device.

Rectifiers use diodes, which function like one-way valves for electricity. They can employ one or more diodes to convert either the positive or negative half of the AC waveform into a DC output. By rectifying one cycle of the AC supply, rectifiers generate a DC voltage. The reverse process is known as inversion, Which is performed by an inverter.

What Are Some Applications of Rectifiers?

Rectifiers supply polarized voltage for electric welding.

Half-wave rectifiers serve as mosquito repellents.

They are utilized as signal peak detectors in AM radios.

Rectifiers play a role in modulation, demodulation, and voltage multiplication.