How Laptop AC Adapter works

Nowadays, the globalization have global citizens live close and communicate tightly

. At the meanwhile, people can buy things from abroad easily. In addition, the exotic products are full of advantages for someone, especially the electronic products for us. People prefer to buy laptop from America. Thus there are some potential defects that one should notice.

As we all know that the common voltage in China is 220V. But the US voltage is 110V. That is a big difference. For those who travel a lot between china and America, especially those IT people, their notebooks are portable. As one friend got a HP from USA with Dv5279eu AC adapter, he had lost his adapter in the airport. But it's not convenient to buy a new one in China. For the different voltage is a big problem in his understanding.

For the notebook computer, the main task of the AC adapter is to convert the high voltage to lower voltage direct current. It's a platform to supply power at the suitable level. However, different brands notebook have different output voltage and interface specifications. There is no standard replacement. That is the big problem of the portable laptop. So in many occasions, especially in an office environment, users had difficulty to buy a new replacement at a reasonable price. That is why this friend had a big trouble to get a new Dv5279eu AC adapter. As in the United States and China, different voltage, so the general would not common compatible. Thus there is a big misunderstanding of the AC adapter.

However, as the development of technology, recent laptop AC adapter has a broad range of voltage number. Then it provides better communication of the commerce. People in China can buy a suitable adapter at home instead of abroad. Now the laptop has a power adapter, and it is the power adapter to solve the above-mentioned adapter problem. For example, this HP Dv5279eu AC adapter, the input current of AC 100V ~ 240V, while the output is only DC 18.5V.So the voltage difference has not been not a problem yet.

That is the role of the laptop AC adapter to generate the high voltage current to the suitable level that required by the laptop.

How Laptop AC Adapter works

By: daniela

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