Power Control Unit with Battery Authentication for Safe Charging
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Solution Overview
Problem
Charging an unauthentic battery disguised as a genuine battery connected to an electronic device can compromise the safety of the battery charging process.
Innovation Solution
An electronic device with a power control unit that supplies power to both a first and second power path, where the second path is specifically for battery charging, and an authentication unit that determines if the battery is authentic, limiting power supply if authentication fails.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If power supply control is simplified without authentication, then ease of operation is improved, but safety and reliability deteriorate due to risk of charging unauthentic batteries
Solution Approach 1:
The authentication unit performs authentication of the battery before the power control unit enables power supply. This preliminary action ensures that only authenticated batteries receive power, preventing safety hazards while maintaining a simple user experience where the authentication process is automatic and transparent to the user
2Reliability
If authentication control is added to verify battery authenticity, then safety and reliability are improved, but device complexity increases due to additional authentication unit and control logic
Solution Approach 1:
The power supply control system is segmented into distinct functional units: an authentication unit responsible for verifying battery authenticity, and a power control unit responsible for enabling or disabling power supply based on authentication results. This segmentation allows each unit to perform its specific function efficiently while maintaining overall system manageability and reliability
3Productivity
If power is supplied to both first and second power paths simultaneously, then productivity is improved by enabling device operation and battery charging concurrently, but safety deteriorates when unauthentic batteries are connected
Solution Approach 1:
The power control unit dynamically adjusts the state of the first and second power paths based on authentication results. When a battery is authenticated, both power paths are enabled for simultaneous operation. When authentication fails, the power control unit disables power supply to prevent safety hazards, making the system adaptive to different battery states
Data Source
AI summary
An electronic device comprises a power control unit that performs control to supply power supplied from an external apparatus to the electronic device to a first power path and a second power path, wherein the first power path differs from the second power path, and the second power path is a power path for supplying power supplied from the external apparatus to the electronic device to a battery, and an authentication unit that performs authentication to determine whether the battery is a predetermined battery. The power control unit limits supply of power supplied from the external apparatus to the electronic device to the first power path and the second power path when the authentication has failed.