The power adapter is a small portable electronic device and a power supply conversion device for electronic appliances. It is generally composed of a shell, a power transformer and a rectifier circuit. According to the connection mode can be divided into wall type and desktop type. It is widely used in telephone sub-machine, game machine, language repeater, walkman, laptop, cellular telephone and other equipment.
There are many kinds of power adapter. Of course, its specifications are also quite large, generally divided into: American standard, national standard, Australian standard, British standard, etc. Different adapter can only be used in different countries. The power adapters available in China are: American standard, national standard, Australian standard, British standard. The only thing that can be used in the U.S. is: U.S. regulations. Only European rules are available. Available in the UK or Hong Kong are: British regulations. Available in Australia are: Australian regulations.
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