What device converts AC to DC?

Answer: A converter is a device that converts AC into DC. A rectifier does what its name implies: it changes or straightens the direction of the current. 

Direct current (DC), which typically flows in a single direction, is created when the direction of alternating current (AC) is periodically reversed by this device. 

The entire conversion procedure is referred to as rectification. Other devices that convert AC to DC include the following:

• Power supply for the mains (PSU)
• Motor–generator
• Turning converter
• The power supply that is switched-mode