Rectification refers to changing direct current to alternating current.

Rectification

The process of converting alternating current (AC) to direct current (DC) using diodes or other rectifying devices.

Direct Current

Electrical current that flows only from zero to positive and does not alternate negative and positive as AC does; the type of current created by the use of a battery.

Alternating Current

The form in which electrical current is generated at power stations and transmitted along power lines to customers. Alternating current is created by causing electrons to flow in an alternating positive and negative manner.