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Common faults caused by power adapter and battery problems

Notebook computer is a highly integrated electrical equipment, which has high requirements for voltage and current. At the same time, its internal electronic components are relatively fragile, if the input current or voltage is not within the design range of the relevant circuit, it may cause serious consequences of burning the chip or other electronic components, so the stability of the power adapter and battery of the power supply equipment of the notebook computer becomes very important.

There are many failures related to power supply of notebook computer. On the one hand, they are caused by the problems of relevant circuits such as protection and isolation circuit and charging control circuit in the host computer of notebook computer, and on the other hand, they are caused by the problems of power adapter and battery itself.

Common faults of power adapters include no output voltage or unstable output voltage. The input voltage of the laptop power adapter is usually 100V to 240V ac. If the access voltage of the power adapter is not within this range, it is likely to cause the power adapter to burn down. The heat of the power adapter itself is very high. If the heat dissipation condition is not good in the process of use, the internal circuit may not work properly, resulting in no voltage output or voltage output instability.

Due to the laptop battery itself caused by the fault mainly includes the battery no voltage output, unable to charge. The core of a laptop battery has a limit on how much it can charge and how much it can discharge, which can cause damage if exceeded. The circuit board in the battery has a certain protective effect on charge and discharge, but it may also produce faults, resulting in no voltage output or failure to charge the battery.