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Dongguan Jiuqi Industrial Co., Ltd.
Contact: Mr.liang
Mobile: +86-13122876672
Tel: 0769-81818179
Fax: 0769-81806179
Address: Kongwu District, Guxia, Shipai town, Dongguan city
Postal Code: 523339
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E-mail:haulwee@vip.163.com
Understand the role of power adapters and batteries in the system from a maintenance perspective
| Understand the role of power adapters and batteries in the system from a maintenance perspective |
| The notebook computer power adapter is also known as the notebook computer external power supply, is the notebook computer power supply conversion equipment, its main role is to provide stable low voltage direct current for the notebook computer. The input voltage of laptop power adapter is generally ac 100 ~ 240V, 50 ~ 60Hz, the output voltage is constant dc 12 ~ 20V, and the power is usually between 35 ~ 100W. After the power supply is converted by the laptop power adapter, it enters the protection and isolation circuit in the motherboard through the power interface on the host computer to provide power for the laptop. The power adapter has two main functions: one is to provide power for the normal operation of the hardware system of the laptop, and the other is to charge the battery of the laptop when the charging control circuit on the motherboard detects that the battery of the laptop needs to be charged. If the laptop's power adapter fails, the laptop won't work or the battery won't charge. When laptops insert or are using power adapter fails, the protection of the motherboard isolating circuit can make the laptop computer automatically shut down, stop the power adapter to the laptop power supply, the vast majority of cases notebook computers will not damage, but suddenly without electricity may cause the loss of important data. So in the choice of notebook computer power adapter, must choose good quality and work parameters and notebook computer corresponding power adapter, it is best to use notebook computer manufacturer original installation configuration power adapter. The power adapter of notebook computer is the alternating current that 220V or so is converted into 12 ~ 20V constant voltage direct current, so its calorific value is relatively larger, when the temperature is too high may burn down power adapter itself, and cause the damage of the circuit after the level, in use to ensure that the power adapter has good heat dissipation conditions. The use of rechargeable batteries is the foundation of laptop portability, which differentiates it from desktop computers. The batteries used in notebook computers have gone through several different eras, including nickel-cadmium batteries, nickel-metal hydride batteries and lithium-ion batteries. At present, rechargeable lithium ion battery is commonly used in notebook computers, which has the advantages of light weight, large capacity and no memory effect. This is a laptop battery. |
| | release time：2019.09.19 Source： |
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Contact: Mr.liangTel:+86-13122876672Tel: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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