rectifier

US /ˈrek.tə.faɪ.ɚ/
UK /ˈrek.tə.faɪ.ɚ/
"rectifier" picture
1.

an electrical device that converts alternating current (AC) to direct current (DC)

:
The power supply uses a rectifier to convert AC to DC.
A diode is a common type of rectifier.