公开(公告)号：US20140245028A1

公开(公告)日：2014-08-28

申请号：US13773842

申请日：2013-02-22

Applicant: QUALCOMM INCORPORATED

Inventor： Wei Chen ,  Sorin Dobre ,  Ronald F. Alton ,  Jon J. Anderson

IPC: G06F1/26

CPC classification number: G06F1/26 ,  G06F1/203 ,  G06F1/206 ,  G06F1/3296 ,  Y02D10/16 ,  Y02D10/172 ,  Y02D50/20

Abstract: Various methods and systems for minimum supply voltage level selection in a portable computing device (“PCD”) are disclosed. It is an advantage of the various embodiments that PCD designers may close timing at a certain minimum supply voltage and operating temperature threshold that is higher than the lowest end of the main operating temperature range within which the PCD must function. By closing timing at the higher operating temperature threshold, relatively smaller components requiring relatively lower power consumption may be used in the PCD, thereby providing improved overall power consumption when the PCD is operating at operating temperatures above the threshold. To maintain functionality when operating temperatures fall below the threshold, the minimum supply voltage to the components is increased. The systems and methods sacrifice power consumption concerns below the operating temperature threshold in exchange for reduced form factors and improved power efficiencies in higher, more typical operating temperature conditions.

Abstract translation: 公开了用于便携式计算设备（“PCD”）中的最小电源电压电平选择的各种方法和系统。 各种实施例的优点是PCD设计人员可以在高于PCD必须工作的主工作温度范围的最低端的特定最小电源电压和工作温度阈值下关闭定时。 通过在更高的工作温度阈值处关闭时序，可以在PCD中使用相对较小的组件，其需要相对较低的功耗，从而当PCD在高于阈值的工作温度下工作时，提供改进的总体功耗。 为了在工作温度低于阈值时保持功能，组件的最小供电电压增加。 在更高，更典型的工作温度条件下，系统和方法将功耗考虑低于工作温度阈值，以换取减小的外形尺寸和提高功率效率。