Dynamic Power Phase Rotation for Thermal Management
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Solution Overview
Problem
Power supply components in computing devices face inefficiencies and reliability issues due to high power consumption, leading to temperature increases and potential failures, which are often mitigated by using oversized components that increase cost, size, and complexity.
Innovation Solution
A method that dynamically manages power supply phases by monitoring thermal properties and selectively activating dormant phases to supplement active ones when temperature thresholds are exceeded, thereby maintaining efficiency and reliability while reducing thermal dissipation and the need for extensive cooling systems.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If oversized electrical components are used to reduce temperature rise effects, then reliability is improved, but cost, size, weight, and complexity increase
Solution Approach 1:
The patent implements dynamic phase switching where dormant power supply phases are selectively activated based on real-time thermal monitoring. This dynamic adjustment allows the system to maintain reliability by cooling overheated phases while avoiding the need for permanently oversized components, thereby reducing overall system complexity
Solution Approach 2:
The system changes operational parameters by switching between different phase configurations based on thermal conditions. When thermal thresholds are exceeded, the system transitions from using N phases to using N+1 phases, effectively changing the operational state to manage thermal dissipation without requiring oversized hardware
2Productivity
If power supply phases are operated at high power, then productivity is improved, but temperature increase and reliability decrease
Solution Approach 1:
The patent employs periodic thermal monitoring and phase switching, where dormant phases are cyclically activated when thermal thresholds are exceeded. This periodic intervention maintains high power delivery capability while preventing thermal damage, thus preserving reliability during high-productivity operation
Solution Approach 2:
The system implements thermal feedback control by continuously monitoring thermal properties of power supply phases and automatically activating dormant phases when thresholds are exceeded. This closed-loop feedback mechanism ensures reliable operation at high power levels by dynamically adjusting phase configuration based on real-time thermal conditions
3Reliability
If thermal protection mechanisms are implemented, then reliability is improved, but device complexity increases
Solution Approach 1:
The thermal protection mechanism uses the power supply system's own dormant phases for cooling, eliminating the need for external active cooling systems. The system self-regulates by monitoring its own thermal state and automatically switching phases, providing reliability enhancement without proportionally increasing control complexity
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 enhances power supply efficiency and reliability by dynamically adjusting power phase operation based on thermal conditions, reducing thermal dissipation and the requirement for costly and bulky cooling solutions, while maintaining consistent power delivery.
Implementation Method 1
Power consumption within power supply components typically results in temperature increases within the individual components
Data Source
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AI summary
Power supply circuitry and enhanced associated techniques are presented herein. In one example, a method includes powering a circuit with a plurality of power supply phases, and monitoring thermal properties of the plurality of power supply phases. Responsive to the thermal properties indicating at least one of the plurality of power supply phases exceeds a thermal threshold, the method includes selecting a dormant power supply phase to supplant the at least one of the plurality of power supply phases.