ac to dc power adapter
Therefore, the AC to DC power adapter is a necessity for converting alternating current (AC) that is coming out of an electrical outlet into direct current (DC)---which drives many electronic devices today. Features of the adapter ensure that it can switch between different devices and wall sockets, and its compact design means that is easy to carry around with you wherever you go. Technological features included are multiple voltage output settings, along with overvoltage protection and short-circuit prevention, all of which keep the adapter--and any connected device -- safe and most importantly functioning properly. So the adapter is used for such purposes as recharging laptops or cell phones (or any other small electronic devices), and also to drive various kinds of DC-driven equipment.