Chip Temperature Threshold Control for Stable Performance

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Solution Overview

Problem

Existing methods for controlling chip temperature, which involve resetting or significantly reducing chip performance when the temperature exceeds a preset threshold, result in inconvenient usage and poor user experience.

Innovation Solution

A method and apparatus that utilize multiple preset temperature thresholds corresponding to specific chip performance control policies, allowing for controlled adjustments in chip operation to manage temperature without direct resetting or excessive performance reduction.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the temperature threshold is set low to protect the chip, then chip reliability is improved, but user convenience deteriorates due to frequent resets

Engineering Contradiction:
Improvechip reliabilityVSAvoiduser convenience
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The single temperature threshold is segmented into multiple thresholds (first threshold, second threshold, third threshold) with progressively stricter control policies. This segmentation allows the system to provide gradual responses rather than abrupt resets, improving user convenience while maintaining chip reliability through staged intervention.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The control policy becomes dynamic by adjusting the response based on the specific temperature threshold reached. Instead of a static reset at one threshold, the system dynamically selects from multiple policies (notification, performance reduction, reset) based on the current temperature level, balancing reliability and user convenience adaptively.

Inventive Principle:
Principle #15Dynamics

2Productivity

If the temperature threshold is set high to maintain performance, then productivity is improved, but chip reliability deteriorates due to overheating risks

Engineering Contradiction:
Improvechip performanceVSAvoidchip reliability
Core Design Contradiction:
ProductivityVSReliability

Solution Approach 1:

By segmenting the temperature protection into multiple thresholds, the system allows the chip to operate at high performance levels (above the first threshold) while providing safety nets at progressively lower thresholds. This enables productivity to be maintained within safe boundaries without compromising chip reliability.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The system takes preliminary protective actions by notifying users and reducing performance before reaching critical temperatures that would cause damage. These preliminary actions prevent overheating risks while allowing the chip to maintain high performance for longer periods, thus protecting reliability without unnecessarily limiting productivity.

Inventive Principle:
Principle #10Preliminary action

3Reliability

If a single strict temperature threshold is used to protect the chip, then chip reliability is improved, but adaptability deteriorates due to lack of flexible control

Engineering Contradiction:
Improvechip reliabilityVSAvoidcontrol flexibility
Core Design Contradiction:
ReliabilityVSAdaptability or versatility

Solution Approach 1:

The single strict threshold is segmented into multiple thresholds with different control policies, providing flexibility in how temperature protection is applied. Each threshold segment offers a different level of intervention, allowing the system to adapt to various operating conditions while maintaining overall chip reliability.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The system changes the control parameter from a single fixed threshold to multiple variable thresholds with associated policies. This allows flexible adjustment of temperature management strategies based on specific operational contexts, enhancing adaptability while preserving chip reliability through the hierarchical structure of thresholds and policies.

Inventive Principle:
Principle #35Parameter changes

Data Source

PatentUS9509293B2Method and apparatus for controlling chip performance
Publication Date: 2016.11.29 HUAWEI TECH CO LTD
  • US9509293B2 patent drawing
  • US9509293B2 patent drawing
  • US9509293B2 patent drawing

AI summary

Embodiments of the present invention disclose a method and an apparatus for controlling chip performance, and relate to the field of communications technologies, which solves a problem in the prior art that a chip is reset or performance is greatly decreased as long as a temperature of the chip is higher than a preset threshold. The method includes: obtaining a working temperature of a chip; when the working temperature of the chip reaches one of multiple preset temperature thresholds, obtaining, according to preset correspondence between a temperature threshold and a chip performance control policy, a chip performance control policy that corresponds to the one of the multiple temperature thresholds; and controlling working of the chip according to the control policy. The present invention is applicable to an electronic device to which a chip is applied, such as a desktop computer or a notebook computer.