Dynamic Processor Power Limit Adjustment for Handheld Devices
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Solution Overview
Problem
Handheld electronic devices with lower wattage power adapters face issues of overloading, overheating, and non-compliance with safety regulations due to excessive energy consumption, and simultaneous battery and power adapter use limits battery life with extra power consumption.
Innovation Solution
An electronic device with a battery module, processor, and controller that monitors charging and discharging currents to dynamically adjust the processor's power limit, balancing energy consumption and performance through a performance optimization method.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a processor with higher performance is used, then processing capability is improved, but the device is prone to overloading, overheating, and non-compliance with safety regulations due to excessive energy consumption
Solution Approach 1:
The patent implements dynamic adjustment of the processor's power limit based on real-time charging and discharging current monitoring. The controller continuously adapts the power limit parameter according to battery status and power adapter connection state, allowing the processor to operate at higher performance levels when power supply is sufficient while preventing overloading and overheating when power supply is limited.
2Ease of manufacture
If a power adapter with lower wattage is included to reduce costs, then manufacturing cost is reduced, but the device cannot support high-performance processors without overloading
Solution Approach 1:
The system dynamically adjusts the processor power limit based on whether a power adapter is connected and the battery's charging/discharging state. When a power adapter is connected, the system allows higher power consumption to enable high-performance processor operation. When no adapter is connected, the system reduces the power limit to match the lower-wattage adapter or battery capacity, preventing overloading while maintaining cost-effective hardware design.
Solution Approach 2:
The patent changes the power limit parameter of the processor based on power supply conditions. By monitoring charging and discharging currents, the system adjusts the power limit parameter in real-time, enabling the same processor to operate at different performance levels depending on available power, thus supporting high-performance processors with lower-wattage adapters.
3Power
If both battery and power adapter are used simultaneously to improve power supply, then power availability is improved, but battery life is limited and extra power consumption is incurred
Solution Approach 1:
The controller continuously monitors the charging and discharging current of the battery module and uses this feedback to adjust the processor's power limit. When both battery and power adapter are connected, the system monitors the charging current to determine if the battery is being charged or discharged, and adjusts power limits accordingly to optimize battery life while maintaining adequate power supply.
Solution Approach 2:
The system changes the power limit parameter based on the power connection mode and battery status. When a power adapter is connected and the battery is charging, the system allows higher power consumption. When the battery is discharging or no adapter is connected, the system reduces the power limit to extend battery life and reduce unnecessary power consumption.
Data Source
AI summary
An electronic device and a performance optimization method thereof are provided. The electronic device includes a battery module, a processor, and a controller. The battery module is configured to supply power to the electronic device. The processor has a power limit. The controller is configured to monitor a charging and discharging current of the battery module. In a power connection mode, the controller analyzes a status of the battery module and adjusts the power limit of the processor according to the charging and discharging current.