CPU Thermal Detection Using Temperature and Power Thresholds
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Solution Overview
Problem
Existing thermal control circuits in electronic devices often fail to stabilize CPU operating frequency effectively during overclocking, leading to inefficient operation and potential damage due to indiscriminate frequency reduction when temperature exceeds a threshold.
Innovation Solution
A method and electronic device configuration that senses core temperature and current power of a heat-emitting component, transmitting an assembling check prompt and activating the thermal control circuit only when power is below thermal design power, reducing unnecessary frequency reductions and improving system efficiency by identifying improper assembly issues.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the automatic underclocking mechanism is activated when temperature exceeds a threshold, then the device is protected from shutdown or damage, but the CPU operating frequency is indiscriminately reduced, dramatically affecting operating efficiency
Solution Approach 1:
The patent changes the control parameters from simple temperature threshold to a combination of temperature and power consumption parameters. By monitoring both core temperature and current power draw, the system can distinguish between thermal issues caused by overclocking (where power is high) versus assembly problems (where power is low), enabling selective activation of underclocking only when appropriate
Solution Approach 2:
The system implements feedback by continuously monitoring both temperature and power consumption, then using this combined information to make intelligent decisions about underclocking activation. The feedback loop includes comparing current power against TDP thresholds to determine whether temperature issues are due to overclocking or assembly problems
2Temperature
If the operating frequency is reduced to control temperature, then thermal damage is prevented, but system efficiency is dramatically affected
Solution Approach 1:
The patent introduces power consumption as an additional control parameter alongside temperature. By evaluating both parameters together, the system can maintain higher operating frequencies when thermal issues are caused by assembly problems (low power state) while still providing thermal protection when overheating is due to excessive power consumption from overclocking
3Productivity
If the CPU operating frequency is stabilized during overclocking, then operating efficiency is improved, but the risk of thermal damage increases
Solution Approach 1:
The system uses continuous feedback from both temperature sensors and power sensors to dynamically adjust CPU operating frequency. This allows the CPU to maintain stable high-frequency operation during overclocking when thermal conditions are acceptable, while automatically reducing frequency when temperature or power consumption exceeds safe thresholds, thus balancing performance with thermal safety
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This approach decreases unnecessary CPU frequency reductions, enhances system efficiency, and alerts technical personnel to potential assembly problems causing overheating, thereby preventing damage and maintaining optimal operation.
Implementation Method 1
sensing a core temperature of a heat emitting component
Implementation Method 2
sensing current power of the heat emitting component
Data Source
AI summary
A method for detecting heat dissipation is provided, including the following steps: sensing a core temperature of a heat emitting component of an electronic device; sensing current power of the heat emitting component when the core temperature is greater than or equal to a warning temperature; and transmitting an assembling check prompt and activating a thermal control circuit (TCC) when the current power is less than thermal design power (TDP) of the heat emitting component. An electronic device is further provided, to execute the method for detecting heat dissipation.