A rectifier is an electrical apparatus used for converting alternating current (AC) to direct current (DC) by allowing only one current to flow through it. Rectifiers are widely used in consumer electronics and computer hardware.
Batteries supply DC electricity. However, the standard form of electricity in electrical outlets at home is AC, which is why a rectifier is needed inside electronic devices to change AC to DC. DC flows consistently in one direction, while AC, as the name suggests, “alternates.”
Major types of rectifiers
There are many types of rectifiers used in electronics. However, there are two varieties widely used in consumer electronics. They all work by transforming AC to DC, but their methods are different.
Half-wave rectifiers
In the half-wave rectifiers, only half of the AC is allowed to pass through a diode while the other half is blocked. This is the simplest type of rectifier circuit because it uses one diode, but it is not very efficient because only one-half of the AC is converted to DC. Half-wave rectifiers are normally used in AC motors.
Full-wave rectifiers
Full-wave rectifiers are more efficient. They use a diode bridge made of four diodes that change the current to DC.
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