Power Allocation Circuit for Simultaneous Device Charging
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Solution Overview
Problem
Wearable electronic devices face challenges in maintaining power supply due to limited external power, leading to inadequate battery charging and impaired functionality, especially when both the device and external electronic devices require simultaneous operation.
Innovation Solution
An electronic device with a housing that accommodates an external electronic device, featuring a charger circuitry and processor to efficiently distribute limited power from an external power supply, determining optimal power allocation based on state information and charging type to charge both the device's battery and external device simultaneously.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Duration of action of moving object
If battery capacity of external electronic device is increased, then function execution time is improved, but power supply reliability deteriorates due to limited external power supply capacity
Solution Approach 1:
The patent divides the power supply system into two independent power sources: the battery of the external electronic device and the battery of the electronic device (case). The charger circuitry can selectively charge either battery or both batteries simultaneously, segmenting the power management to ensure continuous operation even when external power is limited. This segmentation allows the system to maintain reliability by having redundant power sources.
2Productivity
If both electronic device and external electronic device are charged simultaneously from limited external power, then charging efficiency deteriorates, but device availability is improved
Solution Approach 1:
The patent implements dynamic power allocation through the processor and charger circuitry that can adjust charging parameters in real-time. The system dynamically determines whether to charge the external electronic device, the electronic device, or both simultaneously based on battery states, power supply capacity, and usage patterns. This dynamic adjustment optimizes charging efficiency while ensuring both devices remain available for use.
Solution Approach 2:
The patent employs feedback mechanisms where the processor continuously monitors battery states of charge, power supply capacity, and usage patterns. Based on this feedback, the system adjusts charging current distribution and switching between charging modes (charging external device only, charging case battery only, or charging both). This feedback loop ensures optimal charging efficiency while maintaining device availability.
3Power
If electronic device supplies power to external electronic device, then external device charging is improved, but electronic device battery level deteriorates
Solution Approach 1:
The patent merges the power supply capabilities of both batteries (external electronic device battery and electronic device battery) to collectively power the external electronic device. The charger circuitry can draw power from either battery or both simultaneously, combining their capacities to provide sufficient power for charging the external device without depleting the electronic device's battery excessively. This merging approach ensures power transfer capability while preserving energy.
Data Source
AI summary
An electronic device may include a housing, a first interface, a second interface, a battery, a charger circuitry, and at least one processor. The at least one processor may determine information on a charging type of the external power supply connected through the first interface, acquire state information of the external electronic device connected through the second interface, acquire state information of the battery, determine a first power that will be supplied to the battery and a second power that will be supplied to the external electronic device, charge the battery based on the first power, and transmit the second power to the external electronic device through the second interface.