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Method and device for reducing electric source power of terminal apparatus

A technology of terminal equipment and power supply, which is applied in the direction of circuit devices, battery circuit devices, collectors, etc., and can solve problems such as high cost, high power supply, and reduced power supply of terminal equipment

Inactive Publication Date: 2007-12-12
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention provides a method and device for reducing the power supply of terminal equipment, so as to solve the problem that the terminal equipment requires a large power supply and the resulting high cost

Method used

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  • Method and device for reducing electric source power of terminal apparatus
  • Method and device for reducing electric source power of terminal apparatus

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Embodiment Construction

[0013] A control circuit, a functional circuit, a power adapter, a charging circuit and a battery are all provided in a general terminal device. The adapter provides working power for each circuit, and the control circuit controls the functional circuit to enter the working state or exit the working state. For terminal equipment, when the functional circuit is in the non-working state, such as when the call, fax and other services are over, the required current is small; when the functional circuit is in the working state, such as the call, fax and other functions are in progress, the required current current.

[0014] When the functional circuit of the terminal device is in the working state, the present invention stops charging the battery by turning off the charging circuit, or controls the charging circuit to reduce the output charging current, so as to reduce the requirement for the output current of the power adapter; and in the functional circuit When exiting the worki...

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Abstract

The invention is designed for solving the problem that is high production cost of power adaptor caused by a high power requirement from terminal devices. It comprises the following steps: with controlling the charging current of terminal, when the functional circuit requires a heavy current, the charging current circuit is turned off or the charging current is reduced in order to reduce the output current, when the functional circuit requires a low current, the charging current is recovered to a normal state; therefore, the power consumption of power supply is greatly reduced.

Description

technical field [0001] The invention relates to the field of mobile communication, in particular to a power supply processing technology applied in a mobile terminal. Background technique [0002] In the field of mobile communication, general terminal equipment is equipped with an adapter (ADAPTER), a battery and a charging circuit. The charging circuit completes the charging transformation of the battery by the adapter, and the adapter completes other functions (such as calls, faxes, etc.) At the same time as the required current, it also provides the charging current required to charge the battery. [0003] As shown in Figure 1, when the external power output of the terminal device is normal, the charging circuit and other functional circuits work normally. Therefore, the adapter needs to provide the current required by the functional circuit and the charging circuit at the same time. [0004] Since the output current of the adapter must be the sum of the maximum current ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J7/00G05B19/04
Inventor 李吉林蔡腾宇杨春旭刘海龙
Owner HUAWEI TECH CO LTD