In electricity, a device for transforming an alternating current into a pulsating direct current.
Apparatus that changes alternating current (AC) to direct current (DC).
A device that transforms alternating current (AC) into direct current (DC), with a significant unidirectional component, includes various options such as a gas tube metallic rectifier, semiconductor diode, or vacuum tube. These devices serve the purpose of converting AC power to a consistent flow of DC power.