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 Tel：+86-13873397666 E-mail:kulkee-power@dgjiuqi.com |
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Dongguan Jiuqi Industrial Co., Ltd.
Contact: Mr.liang
Mobile: +86-13873397666
Tel: 0769-81818179
Fax: 0769-81806179
Address: Kongwu District, Guxia, Shipai town, Dongguan city
Postal Code: 523339
website: http://www.bmlink.com.cn/
E-mail:haulwee@vip.163.com
Common failures caused by power adapter and battery problems
| Common failures caused by power adapter and battery problems |
| Laptop is a highly integrated electrical equipment, which requires high 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 the relevant circuit, it may cause serious consequences of burning chips or other electronic components. Therefore, the stability of the power adapter and battery of the notebook power supply device 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 and charging control circuit in the host computer 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 output voltage instability. The input voltage of the laptop power adapter is usually 100V ~ 240V ac. If the access voltage of the power adapter is not within this range, it is likely to cause the failure of the power adapter to burn out. The power adapter itself generates a lot of heat. If the heat dissipation condition is not good in the process of use, the internal circuit may not work normally, resulting in the failure of no voltage output or unstable voltage output. Due to the laptop battery itself caused by the fault mainly includes no voltage output battery, unable to charge. Laptop batteries have a certain limit of charge and discharge, if the limit may cause damage. The circuit board in the battery has a certain protective effect on charge and discharge, but its own fault may occur, resulting in no voltage output of the battery or unable to charge the fault. |
| | release time：2019.09.23 Source： |
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Contact: Mr.liangTel:+86-13873397666Tel:0769-81818179Fax:0769-81806179 E-mail:haulwee@vip.163.com
Address: Kongwu District, Guxia, Shipai town, Dongguan city, China Zipcose:523,339
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