公开(公告)号：US20140115365A1

公开(公告)日：2014-04-24

申请号：US13935904

申请日：2013-07-05

Applicant: VIA TECHNOLOGIES, INC.

Inventor： Shuang-Shuang QIN ,  Xiaolu YANG ,  Chin-Hwaun WU

IPC: G06F1/32

CPC classification number: G06F1/3203 ,  G06F1/26 ,  G06F1/32 ,  G06F1/3296 ,  Y02D10/172 ,  Y02D50/20

Abstract: A power management method for use in an electronic system is provided. The electronic system has a processor and a power management unit. The method has the steps of: when the processor has entered a low power state and an awakening event occurs, calculating a staying time from the time point the processor enters the low power state till the time point the awakening event occurs, wherein the operation voltage of the processor is at a first voltage level in the low power state; and when the processing starts to exit the low power state according to the awakening event, determining a wait time, during which the operation voltage of the processor is recovered to a second voltage level of a working state from the first voltage level, wherein the first voltage level is lower than the second voltage level.

Abstract translation: 提供了一种用于电子系统的电源管理方法。 电子系统具有处理器和电源管理单元。 该方法具有以下步骤：当处理器进入低功率状态并且发生唤醒事件时，计算从处理器进入低功率状态的时间点到发生觉醒事件的时间点的停留时间，其中操作电压 处于低功率状态的第一电压电平; 并且当所述处理根据所述唤醒事件开始退出所述低功率状态时，确定所述处理器的操作电压从所述第一电压电平恢复到工作状态的第二电压电平的等待时间，其中所述第一 电压电平低于第二电压电平。