Mobile Terminal Quick Charging With Adapter Negotiation
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Solution Overview
Problem
Current quick charging methods for mobile terminals often result in overheating or burnout due to increased output current without considering the terminal's endurance, reducing its lifespan.
Innovation Solution
A method that negotiates with the mobile terminal via bidirectional communication to determine if the quick charging mode can be adopted, adjusting output voltage and current in a multi-stage constant current mode to ensure safe and efficient charging.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the output current of the power adapter is directly increased to achieve quick charging, then the charging speed is improved, but the mobile terminal overheats or burns out, reducing its lifespan
Solution Approach 1:
The patent performs preliminary actions by having the mobile terminal and power adapter exchange capability information before charging begins. The mobile terminal determines the power adapter type and sends indication information, while the power adapter queries and receives agreement information about quick charging mode. This preliminary negotiation ensures both devices are prepared and compatible before high-current charging starts, preventing overheating and damage.
Solution Approach 2:
The patent implements feedback mechanisms where the mobile terminal and power adapter continuously exchange information during the charging process. The power adapter transmits instructions to query battery status and charging agreement, while the mobile terminal replies with its charging capabilities and current battery state. This bidirectional feedback allows dynamic adjustment of charging parameters to maintain safety while achieving quick charging.
2Loss of time
If the output current is increased for quick charging, then the charging time is reduced, but the mobile terminal experiences overheating or burnout
Solution Approach 1:
The system performs preliminary actions by establishing a communication protocol before charging begins. The mobile terminal determines the power adapter type and sends indication information, while the power adapter queries the mobile terminal's charging agreement. This preliminary setup ensures that high-current charging only begins when both devices are ready and compatible, preventing overheating and burnout while enabling fast charging.
Solution Approach 2:
The patent implements continuous feedback during the charging process. The power adapter transmits instructions to query battery status and charging agreement, while the mobile terminal replies with its charging capabilities and current battery state. This bidirectional feedback allows the system to dynamically adjust charging parameters, maintaining safety while achieving reduced charging time.
3Productivity
If the power adapter increases output current without considering terminal endurance, then quick charging is achieved, but the mobile terminal's lifespan is reduced
Solution Approach 1:
The patent performs preliminary actions by having the mobile terminal determine the power adapter type and send indication information before charging begins. The power adapter queries the mobile terminal's agreement to quick charging mode. This preliminary negotiation ensures both devices are prepared and compatible before high-current charging starts, protecting the mobile terminal's lifespan while enabling fast charging.
Solution Approach 2:
The patent implements feedback mechanisms where the mobile terminal and power adapter continuously exchange information during charging. The power adapter transmits instructions to query battery status and charging agreement, while the mobile terminal replies with its charging capabilities and current battery state. This bidirectional feedback allows dynamic adjustment of charging parameters to maintain safety while achieving quick charging.
Data Source
AI summary
After a mobile terminal recognizes a type of a power adapter, the mobile terminal transmits indication information to the power adapter. The indication information is configured to indicate that the mobile terminal has recognized the type of the power adapter and instruct the power adapter to activate a quick charging process. The power adapter then negotiates with the mobile terminal via the quick charging process to determine charging parameters, and charges a battery of the mobile terminal in a multi-stage constant current mode.