1, the definition of the power adapter:
Power adapter is a small portable electronic equipment and electronic power supply power conversion equipment, generally by the shell, power transformers and rectifier circuit composition, according to its output type can be divided into AC output and DC output type; by connection mode Divided into wall-mounted and desktop. Widely used in supporting the phone, game machines, language video machines, Walkman, notebook computers, cell phones and other equipment.
2, in order to more clearly explain the various types of power adapter models, the following countries are given the safety regulations of the plug, to facilitate our choice:
General European, American, British, Australian and international regulations, as shown above, from left to right
The first is the British regulation: AC plug-UK
The second is the Australian regulation: AC plug-AU
The third is the US regulation: AC plug -US
The fourth is the EU regulations: AC plug-EU
From the shape will be able to distinguish, the national regulations (domestic standards) and the US regulatory almost, less the plug of the two holes it wants.