Micro-Throttle Thermal Management for Mobile Devices
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Solution Overview
Problem
Current thermal management in mobile devices leads to significant performance degradation due to rapid temperature increases, as it only throttles power when the temperature reaches a predefined threshold, causing inefficient heat dissipation and frequent performance drops.
Innovation Solution
Implementing a micro-throttle method that controls the slope of temperature rise by adjusting the operating voltage or frequency of heat-generating components, using multiple predefined temperature thresholds and adaptive feedback mechanisms to prevent rapid temperature spikes and maintain performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If thermal throttle is applied only when temperature reaches predefined threshold, then device can maintain high performance for longer period, but temperature rises too quickly causing frequent and severe performance degradation
Solution Approach 1:
The patent introduces micro-throttle as a preliminary action that activates before the temperature reaches the critical threshold. By detecting early temperature rise trends and applying minor throttling in advance, the system prevents rapid temperature escalation while maintaining high performance operation for longer periods, thus resolving the contradiction between productivity and temperature control
2Temperature
If thermal throttle is applied aggressively to control temperature, then temperature can be stabilized, but performance degradation increases significantly
Solution Approach 1:
The patent applies local quality by implementing differentiated throttling strategies at different temperature levels. Micro-throttle applies minimal, localized power reduction only when temperature shows early rise trends, while traditional thermal throttle applies stronger control only when temperature approaches critical thresholds. This localized, graduated approach stabilizes temperature while minimizing overall performance impact
3Temperature
If multiple temperature thresholds with different micro-throttle solutions are implemented, then temperature control precision improves, but system complexity increases
Solution Approach 1:
The patent segments the thermal management range into multiple temperature thresholds, each with its own micro-throttle solution. This segmentation allows precise control at different temperature levels while maintaining modularity. The system evaluates temperature against multiple thresholds and applies appropriate throttling levels, achieving high control precision without excessive complexity through structured segmentation
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
The micro-throttle method effectively stabilizes temperatures without significant performance loss, reducing the duration of performance-degraded throttling and improving overall system performance by controlling temperature slopes across multiple thresholds.
Implementation Method 1
the power consumption of CPUs and processors is also increasing. As a result, more and more heat needs to be dissipated
Data Source
AI summary
Method and apparatus are provided for thermal management of mobile devices. In one novel aspect, a micro-throttle method is used to control the fast rising temperature for the device. In one embodiment, the thermal management method determines a temperature of the mobile device and compares the temperature with a plurality of predefined temperature thresholds. The thermal management applies a first micro-throttle solution upon detecting the temperature reaches a first predefined temperature threshold and applies a second micro-throttle solution upon detecting the temperature reaches a second predefined temperature threshold. In one embodiment, the first and the second micro-throttle solution control the slope of the rising temperature to be below a first predefined slope and a second predefined slope, respectively. In one embodiment, the temperature is controlled by adjusting the operating frequency or voltage of at least one heat-generating component of the mobile device.