Invention Grant
- Patent Title: Digital power estimator to control processor power consumption
- Patent Title (中): 数字功率估算器来控制处理器的功耗
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Application No.: US13924180Application Date: 2013-06-21
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Publication No.: US09195291B2Publication Date: 2015-11-24
- Inventor: Jong-Suk Lee
- Applicant: Apple Inc.
- Applicant Address: US CA Cupertino
- Assignee: Apple Inc.
- Current Assignee: Apple Inc.
- Current Assignee Address: US CA Cupertino
- Agency: Meyertons, Hood, Kivlin, Kowert & Goetzel, P.C.
- Agent Lawrence J. Merkel
- Main IPC: G06F1/32
- IPC: G06F1/32 ; G06F9/50

Abstract:
In an embodiment, a digital power estimator (DPE) may be provided that may monitor the processors to estimate the amount of power being consumed. If the estimate exceeds a power threshold, the DPE may throttle one or more of the processors. Additionally, throttling events may be monitored to determine if a change in the operating point is desired. In one embodiment, the DPE throttling events may be counted, and if the counts exceed a count threshold, a change in the operating point to a reduced operation point may be requested. Additionally, if the DPE estimate is below the power threshold (or a second power threshold), a second count of events may be maintained. If the second count exceeds a threshold and the operating point is the reduced operating point, a return to the original operating point may be requested.
Public/Granted literature
- US20140380072A1 Digital Power Estimator to Control Processor Power Consumption Public/Granted day:2014-12-25
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