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

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...

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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 frequently woken up when the electronic device is running in a power-saving manner, thereby reducing the power consumption of the EC. Thus prolonging the service life of the battery or battery pack

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