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 also relatively fragile. If the input current or voltage is not within the design range of relevant circuits, it may cause serious consequences of burning chips or other electronic components. Therefore, the stability of power adapter and battery of notebook computer power supply equipment becomes very important.
There are many faults related to the power supply of notebook computers. On the one hand, they are caused by problems in the protection isolation circuit, charging control circuit and other related circuits in the host of notebook computers, on the other hand, they are caused by problems in the power adapter and battery itself.
Common faults of power adapter mainly include no voltage output or unstable output voltage. The input voltage of laptop power adapter is usually AC 100V ~ 240V. If the access voltage of power adapter is not within this range, it is likely to cause the failure of power adapter burning. The heating capacity of the power adapter itself is very large. If the heat dissipation conditions are not good during use, the internal circuit may not work normally, resulting in the failure of no voltage output or unstable voltage output.
The faults caused by the problems of notebook computer battery mainly include battery no voltage output, unable to charge, etc. The charge and discharge of the battery cell of notebook computer have a certain limit. If it exceeds its limit, it may cause damage. The circuit board in the battery has a certain protective effect on charge and discharge, but it may also cause failure, resulting in no voltage output or failure to charge.
Post time: Apr-06-2022
