Power Adaptor Dynamic Charging Parameter Adjustment
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Solution Overview
Problem
Smartphones require frequent charging due to high power consumption, and increasing battery capacity prolongs charging time, leading to issues like overheating, overvoltage, and damage during quick-charging attempts.
Innovation Solution
A power adaptor with a power conversion unit and communication unit via a data line, which negotiates charging modes and parameters with the terminal to safely implement quick-charging, avoiding overheating and damage by monitoring and adjusting voltage and current in real-time.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the output current is increased to achieve quick-charging, then the charging speed is improved, but the temperature and risk of damage increase
Solution Approach 1:
The patent implements dynamic adjustment of charging parameters through communication between the power adaptor and terminal. The charging current and voltage are not fixed but are dynamically modified based on real-time temperature monitoring and battery state feedback, allowing the system to maintain high charging speed while preventing excessive temperature rise
Solution Approach 2:
The patent establishes a feedback mechanism where the terminal monitors battery temperature and charging state, then communicates this information back to the power adaptor via the data line. The power adaptor adjusts its output based on this feedback, creating a closed-loop control system that balances charging speed with temperature management
2Productivity
If the output current is increased to achieve quick-charging, then the charging speed is improved, but the risk of overvoltage and overcurrent damage increases
Solution Approach 1:
The patent implements preliminary negotiation of charging parameters before actual charging begins. The power adaptor and terminal communicate to establish appropriate voltage and current levels based on battery state and temperature conditions, preventing overvoltage and overcurrent damage before they can occur
Solution Approach 2:
The system continuously monitors charging parameters and battery state through feedback communication. When the battery approaches full charge or temperature rises, the terminal notifies the power adaptor to reduce or stop charging current, preventing overcharging and associated damage risks
3Duration of action of moving object
If the battery capacity is increased to extend usage time, then the power consumption coverage is improved, but the charging period becomes longer
Solution Approach 1:
The patent applies parameter changes by dynamically adjusting charging voltage and current levels during the charging process. The system starts with higher current for faster charging when battery is cold, then progressively reduces current as temperature rises or battery approaches full charge, optimizing the balance between charging speed and safety
Data Source
AI summary
A power adaptor (100) includes a power conversion unit (110) and a power line (121). The power conversion unit (110) charges a terminal (200) via the power line (121). The power adaptor (100) further includes a communication unit (130) and a data line (122). When the power adaptor (100) is coupled to the terminal (200), the communication unit (130) communicates with the terminal (200) via the data line (122). The power adaptor (100) charges the terminal (200) still using the power line (121). Furthermore, when the power adaptor (100) is coupled to the terminal (200), the power adaptor (100) communicates with the terminal via the data line (122). Compared with the method of data and power time-division multiplexing the power line, the heating phenomenon of the power line caused by an excessively high load of a signal isolation unit can be effectively avoided.