Dynamic Clock Frequency Control for Surface Heat Management
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Solution Overview
Problem
Conventional methods for controlling processor frequency based on temperature do not allow for flexible adjustment of surface heat generation and user sensory performance, as they fix frequency settings during development, neglecting dynamic changes in load and power consumption.
Innovation Solution
An electronic device and method that monitor graphic performance and power consumption to adjust clock frequencies dynamically, prioritizing heat management and sensory performance by identifying control levels and adjusting CPU and GPU clock values accordingly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If processor frequency is fixed based on temperature, then thermal management is simplified, but performance flexibility and user sensory quality deteriorate
Solution Approach 1:
The patent implements dynamic frequency adjustment by continuously monitoring graphic performance metrics (FPS, rendering time) and power consumption, then adjusting processor frequency in real-time rather than using fixed temperature-based thresholds. This allows the system to adapt performance levels dynamically based on actual workload and thermal conditions.
Solution Approach 2:
The system changes multiple parameters simultaneously including frequency ratio, graphic performance threshold, and power consumption limits to achieve optimal balance between thermal management and performance. Different parameter sets are applied based on device type (mobile vs. PC) and operational conditions.
2Productivity
If processor frequency is increased for higher CPU load, then productivity improves, but surface heat generation increases
Solution Approach 1:
The system implements feedback control by monitoring graphic performance metrics and power consumption, then adjusting frequency accordingly. When graphic performance exceeds thresholds or power consumption approaches limits, the system reduces frequency to prevent excessive heat generation while maintaining acceptable productivity.
Solution Approach 2:
The patent employs periodic monitoring of performance metrics and power consumption at specified intervals, adjusting frequency in periodic cycles rather than continuously. This allows the system to maintain high performance during acceptable periods while periodically checking and adjusting to prevent thermal accumulation.
3Manufacturing precision
If frequency is adjusted based on graphic performance thresholds, then sensory performance is maintained, but device complexity increases
Solution Approach 1:
The system monitors multiple graphic performance metrics (FPS, rendering time, frame drops) but only adjusts frequency when specific thresholds are exceeded. This partial action approach maintains simple control logic while achieving quality sensory performance through selective intervention rather than continuous adjustment.
4Temperature
If temperature-based frequency control is used, then thermal management is straightforward, but power consumption optimization is limited
Solution Approach 1:
The system implements dual feedback loops: one monitoring power consumption and another monitoring thermal conditions. Frequency adjustments are made based on combined feedback from both metrics, allowing optimization of power consumption while maintaining simple thermal management through coordinated control.
Data Source
AI summary
Various embodiments of the present invention relate to an electronic device and a method for controlling heat generated on the surface of the electronic device. The electronic device may comprise a display and a processor, wherein the processor: displays, on the display, graphic elements at the request of a first application; during a first period of time, acquires first information corresponding to the graphic performance of the displayed graphic elements, and identifies a clock control level for controlling operation performance according to execution of the first application; and during a second period of time following the first period of time, identifies a clock value corresponding to the identified clock control level on the basis of the acquired first information, and controls the operation performance according to execution of the first application by using the identified clock value.