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Power adapter identification system and method

A technology for power adapters and identification systems, applied in data processing power supplies, measuring devices, measuring flow/mass flow, etc., can solve problems such as damage to laptops, and achieve the effect of avoiding damage

Inactive Publication Date: 2013-10-30
HONG FU JIN PRECISION IND WUHAN CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For users, when the original adapter is damaged, they may go to the market to buy any adapter, but it is difficult for users to judge whether the purchased adapter matches the parameter type of their notebook computer. The type does not match and the laptop is damaged, resulting in considerable economic losses

Method used

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  • Power adapter identification system and method
  • Power adapter identification system and method

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Experimental program
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Embodiment approach

[0029] Please refer to figure 2 A preferred embodiment of the power adapter identification method of the present invention includes the following steps:

[0030] Step S1 , the BIOS chip 20 controls the EC 10 to transmit a reset signal to the control unit 300 of the adapter 30 , wherein the reset signal is a low-level signal with a duration not less than 480 ns.

[0031] Step S2 , after receiving the reset signal, the control unit 300 outputs an existence signal to the EC 10 , wherein the existence signal is a high-level signal whose duration must be greater than 60 ns and less than 240 ns.

[0032] In step S3, the EC 10 outputs a control instruction for acquiring the ID of the adapter 30 .

[0033] Step S4, the control unit 300 obtains the ID of the adapter 30 from the storage unit 302, and transmits the ID to the EC 10.

[0034] Step S5 , the EC 10 transmits the obtained ID to the BIOS chip 20 .

[0035] Step S6, judging whether the ID matches, if the ID matches, go to st...

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PUM

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Abstract

An adapter identification system for a computer includes an embedded controller (EC) configured to simulate a 1-Wire protocol controller, an adapter including a control unit and a storage unit, and a basic input output system (BIOS) chip. The adapter is assigned a first identity (ID), which is stored in the storage unit, and the control unit is used to obtain the first ID. The BIOS chip is configured to obtain the first ID through the EC, and determine whether the first ID matches one of a number of second IDs stored in the BIOS chip. The BIOS chip boots the operation system of the computer in response to the first ID matching one of the second IDs, and the BIOS chip outputs a rejection notice to a display of the computer in response to the first ID not matching one of the second IDs.

Description

technical field [0001] The invention relates to a power adapter identification system and method. Background technique [0002] Now, the notebook computer all works through the power provided by the built-in battery or the adapter of the external power supply, wherein the built-in battery is also charged by the adapter of the external power supply. However, when the parameters of the adapter and the notebook computer do not match, for example, the voltage provided by an adapter is inconsistent with the normal working voltage of the notebook computer connected to it, at this time, if you continue to use the adapter to supply power to the notebook computer, it is likely to cause the notebook computer to be damaged. damage. Therefore, it is very important whether the adapter of the external power supply matches the parameters of the notebook computer. In this case, the manufacturer usually produces a dedicated adapter to power a specific type of laptop. For users, when the o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F1/26
CPCG06F9/441G06F9/4401
Inventor 邹华陈俊生
Owner HONG FU JIN PRECISION IND WUHAN CO LTD
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