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Then, we must look at the specific contents of, for example, to see if the circuit conditions, or the structure of the adapter is the ideal situation. But in general, the manufacturers will not be provided to the user, and the lack of circuit knowledge, users may not understand. Therefore, if the time of purchase, to find a knowledgeable staff who is a good idea. If these conditions are not met, it can only be concerned about the appearance and wire. There is also a small suggestion, there are some brands in the power adapter have some special designs, such as the Apple notebook adapter to add a magnetic clasp, so that the connection between the host and the DC jack is more secure. There are some adapters to add a lot of features, such as WIFI hot spots and the like. But this kind of adapter, select up to more comfortable, because the imitation is rarely camp factory. As we all know, the laptop battery has an internal control circuit. In fact, not only inside the battery control circuit, in a notebook motherboard also has a corresponding circuit. The circuit mainly consists of three parts, one is the power adapter into the sensor. Second, the control chip, such as photos Xiaobian is provided below the corner of a section notebook motherboard, it uses the ADP3806 chip. Third, to control current to the MOS chip, it belongs to the high-power devices (as opposed to digital signal processing chip is concerned).Acer laptop ac adapter Dell laptop ac adapter Hp laptop ac adapter Toshiba laptop ac adapter
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