Battery Charging Mode Selection via Power Plug Strain Detection
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Solution Overview
Problem
Mobile devices lack a user-friendly method to seamlessly switch between normal and fast charging modes, which can affect battery life and performance.
Innovation Solution
A device with a power manager and switch mechanism that allows users to select between charging modes by inserting or twisting a power plug, using strain gauges to detect user intent and activate fast charging mode.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If fast charging mode is enabled, then charging speed is improved, but battery life and performance are degraded
Solution Approach 1:
The system dynamically switches between normal charging mode and fast charging mode based on user selection. The power manager adapts the charging parameters in real-time, allowing the charging speed to vary between slow (for battery preservation) and fast (for quick charging needs), thus resolving the contradiction between charging speed and battery reliability.
2Ease of operation
If a switch mechanism is added to select charging modes, then ease of operation is improved, but device complexity is worsened
Solution Approach 1:
The system uses the power plug itself as the switching mechanism. When the user inserts the power plug into the power jack, the physical act of insertion triggers the charging mode selection through integrated strain gauges. This eliminates the need for separate buttons or complex interfaces, allowing the power plug to serve dual purposes: power delivery and mode selection, thus improving ease of operation without significantly increasing complexity.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables users to easily switch between charging modes, optimizing battery performance and life by providing a convenient and intuitive method for selecting between normal and fast charging.
Implementation Method 1
a power manager coupled to the battery connector to charge the battery in a first charging mode and a second charging mode
Implementation Method 2
A device with a power manager and switch mechanism that allows users to select between charging modes by inserting or twisting a power plug, using strain gauges to detect user intent
Data Source
AI summary
A device includes a battery connector to couple to a rechargeable battery to provide power, a power manager coupled to the battery connector to charge the battery when connected to the battery connector in a first charging mode and a second charging mode, a power jack to receive a power plug, and a switch coupled to the power jack and the power manager and responsive to user actuation via the power plug to select the second charging mode.