Power supply management method, power supply management system and electronic device

A technology of power management system and electronic equipment, which is applied in the direction of secondary battery charging/discharging, battery circuit devices, circuits, etc., can solve the problems of frequent wake-up of EC, achieve the effect of reducing charging times, reducing power consumption, and prolonging service life

Active Publication Date: 2014-06-25
LENOVO (BEIJING) CO LTD
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Problems solved by technology

[0005] In view of this, the object of the present invention is to provide a power management method and a power management system to solve the problem in the prior art that the EC is frequen

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  • Power supply management method, power supply management system and electronic device
  • Power supply management method, power supply management system and electronic device
  • Power supply management method, power supply management system and electronic device

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[0041] In order to make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be described clearly and completely in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of the embodiments of the present invention, not all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

[0042] The present invention discloses a power management method, which is used to solve the problem that ECs are frequently awakened when electronic equipment is running on power saving in the prior art, thereby reducing the power consumption of ECs and thereby extending the service life of batteries or battery packs .

[0043] The po...

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Abstract

The present invention discloses a power supply management method, which comprises that: when an electronic device is in a first operating mode, PDU detects electric quantity parameters of a storage battery or storage battery pack in the electronic device, determines whether the electric quantity parameters meet preset charging conditions, and outputs an instruction to EC when the electric quantity parameters meet the preset charging conditions; and the EC responses the instruction and controls a charging circuit to charge the storage battery or storage battery pack. According to the power supply management method, charging control on the storage battery or storage battery pack in the electronic device is achieved with the matching of the PDU and the EC; and before the PDU outputs the instruction to the EC, the EC is always in the low power consumption mode and can not be waked up frequently so as to reduce EC power consumption and reduce the number of charging on the storage battery or storage battery pack, such that the service life of the storage battery or storage battery pack is prolonged. The present invention further discloses a power supply management system and an electronic device.

Description

technical field [0001] The invention belongs to the technical field of electronic equipment control, and in particular relates to a power management method, a power management system and electronic equipment. Background technique [0002] With the development of technology, more and more portable electronic devices (such as laptops and tablets) appear in people's lives. Currently in laptops and tablets, power management is done through an embedded controller (EC). [0003] When laptops and tablets are in low-power operating modes (mainly including standby mode, hibernate mode, sleep mode and ready mode), EC also enters low-power mode. When the EC is in the low power mode, the EC counts through the internal real-time clock chip (RTC). When the preset period is reached, the EC wakes up from the low power mode, detects the battery capacity of the battery or battery pack, and then performs based on the battery capacity. Subsequent charge control. [0004] However, existing EC...

Claims

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Application Information

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IPC IPC(8): H01M10/44H02J7/00
CPCH01M10/44H01M10/441H02J7/0013Y02E60/10
Inventor 宋建华李永久王晓刚
Owner LENOVO (BEIJING) CO LTD
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