Power Control Device for Processor Heat Dissipation
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Solution Overview
Problem
Conventional information processing systems experience unpredictable fan operation due to irregular power consumption patterns, leading to user discomfort and inefficiencies in heat dissipation.
Innovation Solution
Implementing a power control system that dynamically switches between multiple power modes based on reference power levels and time thresholds, using a processor that can operate in first, second, and third power control modes, with a power control unit that adjusts modes based on power consumption exceeding or falling below predetermined levels, thereby controlling fan operation and heat dissipation effectively.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If the fan operates according to instantaneous power consumption changes, then heat dissipation responds quickly to processor load, but fan operation becomes unpredictable and annoying to users
Solution Approach 1:
The patent applies preliminary action by setting predetermined time periods before evaluating whether to change power control modes. Instead of reacting immediately to instantaneous power consumption changes, the system waits for power consumption to exceed reference levels for a predetermined time period, thereby filtering out temporary fluctuations and providing predictable fan operation that users can anticipate and accept.
2Temperature
If the fan operates continuously to ensure adequate cooling, then temperature control is maintained, but power consumption increases unnecessarily
Solution Approach 1:
The patent applies dynamics by enabling the power control mode to change dynamically based on sustained power consumption levels. The system transitions between power control modes (and corresponding fan operation levels) according to whether power consumption exceeds reference levels for predetermined time periods, allowing the fan to operate at appropriate levels rather than continuously, thus reducing unnecessary power consumption while maintaining temperature control.
3Productivity
If the power control mode changes frequently to match instantaneous power consumption, then cooling efficiency is optimized, but system stability decreases
Solution Approach 1:
The patent applies preliminary action by requiring power consumption to exceed reference levels for a predetermined time period before triggering a power control mode change. This filtering mechanism prevents frequent mode changes due to transient fluctuations, thereby maintaining system stability while still achieving effective cooling when power consumption genuinely requires it.
4Temperature
If the fan operates at high speed to handle peak power consumption, then maximum heat dissipation is achieved, but noise and user discomfort increase during low load periods
Solution Approach 1:
The patent applies dynamics by adjusting the power control mode and fan operation speed according to sustained power consumption levels. The system operates at high fan speeds only when power consumption exceeds reference levels for predetermined time periods, and reduces fan operation during low load periods, thereby achieving maximum heat dissipation when needed while minimizing noise and user discomfort during low load periods.
Data Source
AI summary
Systems, apparatus, and methods that control power consumption in a processor are disclosed. One system apparatus, and method includes a processor that operates in at least a first power control mode including a first power amount and a second power control mode including a second power amount lower than the first power amount and a power control device. The power control device is configured to control power consumption in the processor, change a power control mode of the processor to the first power control mode in response to a first excess time period in which the power consumption of the processor exceeds a first reference power for a first period of time, and change the power control mode of the processor to the second power control mode in response to a second period of time in which the power consumption is less than or equal to a second reference power.