Instructions For Use Of The Power Adapter

There are generally several items on the label of the power adapter that need attention. First, it is the model of the adapter. For example, the model of this adapter is XVE-120100. It tells us a few information, that is, its manufacturer, main parameters, etc. The beginning of XVE is generally ##company code, 120100 means this The adapter is 12V1A, 050200 is 5V2A; the second is the INPUT (input) of the adapter, which is generally used in China as AC100-240V~50-60Hz, which means that this adapter can work normally under the AC voltage of 100V-240V ; The third is the OUTPUT (output) of the adapter, DC 12V=1A, which represents a DC with a rated voltage of 12V and a maximum current of 1A. Two numbers can quickly calculate the wattage of the adapter. For example, for this adapter, the voltage 12V*current 1A=12W (power), indicating that the power supply is a 12W adapter.
Most laptop power adapters are suitable for 100-240V AC (50/60Hz). Basically, most of the notebook computers have external power supply and connect it to the host computer with a power cord, which can reduce the size and weight of the host computer. Only a very small number of models have the power supply built into the host computer.
There is a nameplate on the power adapter, which indicates the power, input and output voltage, and current. Pay special attention to the range of input voltage. This is the so-called "travel power adapter". If you go to a country where the mains voltage is only 110V When using this feature, this feature is very useful. Some parallel imported laptops are only sold in the country of origin, without such a compatible voltage design, and even only have a single input voltage of 110V. If they are plugged in under the 220V mains voltage in our country, they will burn out.