公开(公告)号：US20150277393A1

公开(公告)日：2015-10-01

申请号：US14507679

申请日：2014-10-06

Applicant: QUALCOMM Incorporated

Inventor： Jonathan Liu ,  Jasmin Smaila Ibrahimovic ,  Jan Christian Diffenderfer ,  Carlos Auyon

IPC: G05B11/01 ,  H03K5/01 ,  H03K3/012 ,  G01R31/28

Abstract: An integrated circuit dynamically compensates for circuit aging by measuring the aging with an aging sensor. The aging sensor uses the same circuit to measure circuit speeds in both aged and un-aged conditions. An example aging sensor includes two delay lines. The delay lines are controlled to be in a static aging state or the delay lines are coupled to form a ring oscillator that can operate in an aged state where the frequency is slowed by aging or in an un-aged state where the frequency is not slowed by aging. The integrated circuit uses the aging measurements for dynamic voltage and frequency scaling. The dynamic voltage and frequency scaling uses a table of operating frequencies and corresponding voltage that is periodically updated based on the aging measurements. The integrated circuit use information about the relationship between the aging measurements and circuit performance to update the table.

Abstract translation: 集成电路通过老化传感器测量老化来动态地补偿电路老化。 老化传感器使用相同的电路来测量老化和非老化条件下的电路速度。 示例性老化传感器包括两个延迟线。 延迟线被控制为处于静态老化状态，或者延迟线被耦合以形成环形振荡器，该环形振荡器可以在衰老状态下工作，其中频率由于老化而衰减，或者在频率不变慢的未老化状态 通过老化 集成电路使用老化测量动态电压和频率缩放。 动态电压和频率缩放使用基于老化测量周期更新的工作频率表和相应的电压表。 集成电路使用有关老化测量和电路性能之间关系的信息来更新表。

公开(公告)号：US09484892B1

公开(公告)日：2016-11-01

申请号：US14850801

申请日：2015-09-10

Applicant: QUALCOMM Incorporated

Inventor： Mohammad Reza Kakoee ,  Shih-Hsin Jason Hu ,  Min Chen ,  Jasmin Smaila Ibrahimovic ,  Carlos Auyon ,  Sorin Adrian Dobre ,  Navid Toosizadeh ,  Nan Chen ,  Mohamed Waleed Allam

IPC: G01R31/317 ,  H03K3/011 ,  H03K3/012

CPC classification number: H03K3/011 ,  G01R31/2884 ,  G01R31/31727 ,  H03K3/012

Abstract: An integrated circuit compensates for circuit aging by measuring the aging with an aging sensor and controlling a supply voltage based on the measured aging. The operating environment for the aging sensor can be set to reduce impacts of non-aging effects on the measured aging. For example, the operating environment can use a temperature inversion voltage. An initial aging measurement value which is the difference between an initial aged measurement and an initial unaged measurement can be stored on the integrated circuit. A core power reduction controller can use the measured aging and the stored initial aging measurement value to update a performance-sensor target value and then perform adaptive voltage scaling using the using the updated performance-sensor target value.

Abstract translation: 集成电路通过使用老化传感器测量老化并根据测量的老化来控制电源电压来补偿电路老化。 老化传感器的操作环境可以设置为减少非老化对测量老化的影响。 例如，操作环境可以使用温度反转电压。 初始老化测量值与初始未老化测量值之差可以存储在集成电路上。 核心功率降低控制器可以使用测量的老化和存储的初始老化测量值来更新性能传感器目标值，然后使用更新的性能传感器目标值来执行自适应电压缩放。