公开(公告)号：US20130332765A1

公开(公告)日：2013-12-12

申请号：US13691678

申请日：2012-11-30

Applicant: APPLE INC.

Inventor： Paul J. COSTA ,  David R. COX ,  Bharat K. PATEL ,  Nicholas W. RUHTER ,  Xiaoyang ZHANG ,  Steve X. ZHOU

IPC: G06F1/26

CPC classification number: G06F1/26

Abstract: A method and system for reducing acoustic power supply noise, specifically acoustic noise related to power supply switching frequencies in a computing device, is disclosed. In one embodiment, a controller can monitor power consumed by the computing device, and an operational state of the computing device can be determined. If the computing device is in a first operational state and the power consumed is greater than a threshold amount, then the power supply can be operated at a first switching frequency or mode of operation, thereby avoiding switching frequencies that can produce acoustic noise.

Abstract translation: 公开了一种用于降低声功率噪声的方法和系统，特别是与计算设备中的电源开关频率相关的声学噪声。 在一个实施例中，控制器可以监视由计算设备消耗的功率，并且可以确定计算设备的操作状态。 如果计算设备处于第一操作状态并且功耗大于阈值，则可以以第一开关频率或操作模式操作电源，从而避免可能产生声学噪声的开关频率。