Battery Charging Control Using Stored Authentication Results
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Solution Overview
Problem
Portable electronic devices face challenges in safely charging battery devices, as counterfeit batteries may not support standard charging controls, and when battery levels are low, authentication processes are hindered, leading to prolonged charging times.
Innovation Solution
An electronic device with a charge unit, authentication unit, and control unit that stores authentication results and adjusts charging methods based on battery voltage levels, allowing for safe charging and authentication of genuine batteries.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a battery authentication process is performed before charging, then safety is improved, but charging time is prolonged when battery level is low
Solution Approach 1:
The authentication result is stored in advance in the storage unit. When the battery voltage reaches the first voltage level during charging, the control unit retrieves the pre-stored authentication result instead of performing authentication again, thereby avoiding time loss while maintaining safety
Solution Approach 2:
The authentication result is copied and stored in the storage unit for future reference. This allows the system to reuse the authentication information without repeating the authentication process, resolving the contradiction between safety verification and charging time
2Productivity
If charging control suitable for genuine battery is performed, then charging speed is improved, but counterfeit battery may be damaged
Solution Approach 1:
The control unit receives feedback from the authentication unit about whether the battery is genuine or counterfeit. Based on this feedback, the control unit adjusts the charging control strategy - applying suitable charging control only to genuine batteries and avoiding it for counterfeit batteries, thus preventing damage while maintaining charging speed for authentic devices
Data Source
AI summary
An electronic device includes a charge unit that charges a battery included in a battery device with power from a connected external device, an authentication unit that authenticates the battery device, a storage unit that stores a last authentication result by the authentication unit of the battery device, and a control unit that controls a charging method by the charge unit based on the authentication result stored in the storage unit and a type of the external device when a voltage level of the battery reaches a first voltage level.