Accessory Battery Charging Control for Electronic Devices
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Solution Overview
Problem
Existing electronic devices face challenges in efficiently managing multiple power sources while maintaining low manufacturing costs, as they often require complex power management systems to optimize battery charging and usage time.
Innovation Solution
The implementation of an electronic device and accessory system with multiple chargeable batteries and processors that communicate to manage charging, allowing for flexible power distribution and efficient charging control based on external power availability and battery states.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a complex power management system is used to efficiently manage multiple power sources, then battery charging efficiency is improved, but manufacturing cost increases
Solution Approach 1:
The patent combines the power management functions for multiple batteries into a single integrated controller that can manage charging for both the built-in battery and external battery simultaneously. This merging approach maintains efficient multi-power-source management while reducing the need for separate control circuits, thereby lowering manufacturing costs.
Solution Approach 2:
The power management system is designed with universal functionality to handle multiple power sources (built-in battery and external battery) through a single controller that can adaptively manage charging based on power availability. This multi-functional design eliminates the need for separate specialized controllers for each battery type, reducing overall system complexity and manufacturing cost.
2Duration of action of moving object
If multiple batteries are supported for extended usage time, then duration of action is improved, but device complexity increases
Solution Approach 1:
The system segments power management into distinct functional modules: a power detection unit that identifies available power sources, a control unit that manages charging distribution, and battery units that can be independently attached or detached. This segmentation allows the system to support multiple batteries for extended usage while maintaining manageable complexity through modular design.
Solution Approach 2:
The power management system dynamically adapts its operation based on the number and state of attached batteries. The controller automatically adjusts charging parameters and power distribution in real-time, enabling the system to efficiently manage varying configurations of power sources without requiring complex pre-programmed scenarios for each possible battery combination.
3Reliability
If preferential charging control is implemented for built-in battery, then reliability is improved, but adaptability decreases
Solution Approach 1:
The system changes operational parameters dynamically based on power source availability and battery states. When external power is detected, the controller adjusts charging parameters to provide preferential charging to the built-in battery while still allowing flexible charging of external batteries. This parameter adjustment maintains reliability for the built-in battery while preserving adaptability for different charging scenarios.
Solution Approach 2:
The power management system incorporates feedback mechanisms that continuously monitor battery charge levels, power source availability, and charging status. Based on this feedback, the controller automatically adjusts charging strategies to ensure reliable charging of the built-in battery while adapting to user needs and external conditions, thereby maintaining both reliability and versatility.
Data Source
AI summary
An accessory is attachable to and detachable from an electronic device, the accessory has at least one first battery that is charged with electric power supplied from an external power supply to the electronic device and a first processor that performs control to charge the first battery, the electronic device includes: a second battery that is charged with the electric power supplied from the external power supply; and a second processor that performs control to charge the first battery and the second battery, and the second processor has a communication part to communicate with the first processor.