Terminal Processor Throttling for Temperature Stabilization
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Solution Overview
Problem
Portable terminals face heat dissipation challenges due to increased internal component density, leading to potential malfunctions and damage from high temperatures, especially in high ambient conditions, which affects their stability and functionality.
Innovation Solution
A method and terminal configuration that includes a temperature sensor and controller to adjust the driving frequency of the processor, implementing a throttle procedure to maintain a stable temperature by switching between preset frequencies based on temperature thresholds, and restricting application program loads to manage heat effectively.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If the density of internal components is increased to minimize thickness and maximize screen area, then the terminal achieves better portability and display performance, but heat dissipation space is reduced making heat emission difficult
Solution Approach 1:
The controller dynamically adjusts its driving frequency based on real-time temperature feedback from the temperature sensor. When temperature exceeds a threshold, the controller reduces its driving frequency to lower heat generation, and when temperature is within acceptable range, it increases frequency to improve performance. This dynamic adaptation resolves the contradiction by making the system's thermal output flexible rather than fixed.
Solution Approach 2:
The system changes the operating parameter (driving frequency) of the controller in response to temperature conditions. By modulating the driving frequency between a first frequency (lower, for heat reduction) and a second frequency (higher, for performance), the system adapts its thermal characteristics to resolve the conflict between compact design and heat dissipation.
2Productivity
If the terminal operates at high loads or high speed, then processing performance is improved, but heat accumulation increases beyond emission capacity causing temperature rise
Solution Approach 1:
The system implements a feedback mechanism where the temperature sensor continuously monitors terminal temperature and provides feedback to the controller. Based on this feedback, the controller automatically adjusts its driving frequency to maintain temperature within acceptable limits while maximizing performance. This closed-loop control resolves the contradiction by balancing performance and thermal management through real-time monitoring and adjustment.
Solution Approach 2:
The controller transitions from static high-speed operation to dynamic speed adjustment based on thermal conditions. When temperature is low, the controller operates at high speed for maximum productivity; when temperature rises, it dynamically reduces speed to prevent overheating. This dynamic behavior resolves the contradiction between sustained high performance and thermal safety.
3Productivity
If the temperature of the terminal increases significantly, then heat management becomes critical, but continuous high-frequency driving prevents temperature reduction
Solution Approach 1:
The system implements periodic alternation between high-frequency and low-frequency driving modes based on temperature conditions. When temperature exceeds the threshold, the controller periodically switches to low-frequency mode to allow temperature reduction, then returns to high-frequency mode when temperature is acceptable. This periodic action pattern resolves the contradiction by introducing rhythmic variation in operating speed to manage thermal accumulation.
4Reliability
If ambient temperature is high, then the terminal operates in challenging thermal conditions, but stability is negatively impacted
Solution Approach 1:
The system takes preliminary action by proactively reducing controller driving frequency when temperature approaches critical thresholds, before actual overheating or instability occurs. The temperature sensor detects rising temperatures in advance, and the controller preemptively lowers its operating frequency to prevent thermal runaway. This preliminary anti-action resolves the contradiction by counteracting thermal effects before they compromise system stability.
Data Source
AI summary
A method for controlling a temperature of a terminal and a terminal supporting the same are provided. A terminal supporting temperature control includes a temperature sensor for detecting a temperature of the terminal, and a controller for performing at least one of a first throttle procedure including driving the controller with a first preset driving frequency when the temperature of the terminal detected by the temperature sensor is a first preset temperature, and driving the controller with a second driving frequency higher than the first driving frequency when the temperature of the terminal is reduced to a second preset temperature lower than the first preset temperature, and a second throttle procedure including driving the controller with the first preset driving frequency for a first time, and driving the controller with the second driving frequency higher than the first driving frequency for a second time after the first time elapses.