Battery Charging Apparatus Overvoltage Protection Control
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Solution Overview
Problem
Existing battery charging methods lack effective overvoltage and overcurrent protection, risking battery damage during conventional or quick charging.
Innovation Solution
A battery charging apparatus with a power adapter and charging control circuit that communicates to determine if output voltage and current exceed thresholds, sending stop commands to prevent damage by switching off the direct current output and communication interface.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If charging current is increased for quick charging, then charging speed is improved, but battery damage risk increases due to overcurrent
Solution Approach 1:
The patent implements a feedback mechanism where the charging control circuit continuously monitors charging current and voltage parameters, compares them against preset thresholds, and automatically adjusts or terminates charging when abnormal conditions are detected, thereby enabling safe quick charging
Solution Approach 2:
The patent sets predetermined voltage and current thresholds before charging begins. The system proactively prepares protection criteria and monitoring mechanisms in advance, allowing immediate response when charging parameters approach dangerous levels
2Productivity
If charging voltage is increased for quick charging, then charging speed is improved, but battery damage risk increases due to overvoltage
Solution Approach 1:
The charging control circuit continuously monitors charging voltage parameters and compares them against preset voltage thresholds. When overvoltage conditions are detected, the system automatically adjusts or terminates charging, enabling safe operation at higher voltage levels for faster charging
3Reliability
If conventional constant voltage charging is used, then battery safety is maintained, but charging time is extended
Solution Approach 1:
The patent transforms static constant voltage charging into a dynamic charging process. The system continuously monitors charging parameters and dynamically adjusts charging current and voltage in real-time based on battery state and threshold comparisons, enabling both speed and safety
4Device complexity
If no overvoltage/overcurrent protection is implemented, then device complexity is reduced, but battery damage risk increases
Solution Approach 1:
The charging control circuit autonomously monitors charging parameters, compares them against preset thresholds, and automatically terminates or adjusts charging when abnormal conditions are detected. This self-service protection mechanism provides reliable battery safety without requiring complex external protection systems
Data Source
AI summary
The present disclosure provides a battery charging apparatus and a battery charging protection control method. A power adapter in the battery charging apparatus performs data communication with a charging control circuit; when the power adapter determines that overvoltage and/or overcurrent occurs in the direct current output by a communication interface of the power adapter, the power adapter notifies the charging control circuit to drive a controller in the electronic device to switch off a communication interface of the electronic device and switches off the direct current output automatically; when the charging control circuit determines that overvoltage and/or overcurrent occurs upon receiving output voltage and output current of the power adapter, the charging control circuit notifies the power adapter to switch off the direct current output and drives the controller in the electronic device to switch off the communication interface of the electronic device.