Battery Threshold Charging for Cradle-Powered Electronic Devices
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Solution Overview
Problem
The service life of electronic device batteries is shortened due to prolonged high battery level states, which accelerate aging and expansion, especially when connected to charging cradles for extended periods.
Innovation Solution
A charging method that controls the electronic device to switch between states where the battery is charged by the cradle only when below a certain level and stops charging when above a certain level, ensuring the battery supplies power to the load, thereby avoiding prolonged high battery levels.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the charging cradle continuously supplies power to the electronic device, then the battery maintains a high battery level state, but the aging and expansion rate of the battery is accelerated and service life is shortened
Solution Approach 1:
The charging control module implements periodic charging actions by switching between charging and non-charging states based on battery level thresholds. When the battery level reaches the first threshold, charging is stopped; when it drops to the second threshold, charging is resumed. This periodic action prevents the battery from remaining in a high battery level state for extended periods, thereby reducing aging and expansion rates while maintaining reliable operation.
2Productivity
If the battery is kept at high battery level to ensure sufficient power supply, then the device can operate continuously, but the battery aging is accelerated
Solution Approach 1:
The charging control module employs feedback control by continuously monitoring the battery level and adjusting the charging state accordingly. The module compares the current battery level against predefined thresholds (first and second thresholds) and dynamically switches between charging and non-charging modes. This feedback mechanism ensures the battery maintains sufficient charge for continuous operation while preventing prolonged high battery level states that would accelerate aging, thus balancing productivity and reliability.
Data Source
AI summary
In an embodiment, a method includes controlling an electronic device to be in a state in which both a load and a battery of the electronic device are powered by a charging device when a battery level of the battery is less than or equal to a first preset battery level and controlling the electronic device to be in a state in which neither the load nor the battery is powered by the charging device and the battery supplies power to the load when the battery level of the battery is greater than or equal to a second preset battery level, wherein the second preset battery level is greater than the first preset battery level and less than or equal to a maximum battery level of the battery.