Wireless Charging Mode Adaptation via Communication Circuit
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Solution Overview
Problem
Conventional resonant inductive coupling techniques for wireless charging fail to adapt charging modes based on travel adaptors (TAs) and can cause circuit damage due to sudden power changes, leading to voltage drops and interrupted charging when devices are turned on.
Innovation Solution
An electronic device with a power receiving antenna, communication circuit, and power management circuit that can switch between charging modes by transmitting information to the power supply, allowing for adaptive charging based on conditions such as power levels and device states, enabling fast or normal charging modes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the power supply immediately increases or decreases power in response to current changes, then the charging speed is improved, but circuit damage risk increases
Solution Approach 1:
The patent applies preliminary anti-action by detecting current changes and preemptively adjusting power supply levels before dangerous voltage drops or circuit damage can occur. The control circuit monitors current consumption and proactively reduces power supply when initialization or sharp current changes are detected, preventing harmful effects before they manifest.
Solution Approach 2:
The system performs preliminary action by initializing the power management circuit and communication circuit before full-power charging begins. This preparatory initialization ensures that control systems are ready and configured properly, preventing circuit damage during subsequent high-power operation.
2Ease of operation
If the electronic device turns on and initializes power management circuit, then device functionality is improved, but charging interruption and voltage drop occur
Solution Approach 1:
The patent applies preliminary action by completing the initialization of power management and communication circuits before initiating full-power wireless charging. This ensures that all control systems are properly configured and ready to handle charging operations, preventing interruptions during the charging process.
Solution Approach 2:
The system uses periodic action by implementing continuous monitoring of current consumption and power supply levels during charging operations. This allows the system to detect initialization events or abnormal current changes and respond by adjusting power supply levels, maintaining charging continuity while allowing device functionality to be established.
3Ease of operation
If resonant inductive coupling is used for wireless charging, then cable-free charging is achieved, but adaptability to different power supplies is reduced
Solution Approach 1:
The patent applies dynamics by implementing dynamic adjustment of charging parameters based on detected power supply characteristics. The system continuously monitors power supply levels and current consumption, then adaptively adjusts wireless charging power transmission to match the capabilities of different travel adaptors and power supplies, enabling universal compatibility while maintaining wireless convenience.
Solution Approach 2:
The system uses parameter changes by modifying charging power levels, frequencies, or other operational parameters based on detected power supply characteristics. This allows the resonant inductive coupling system to adapt to different power supply types and capabilities, achieving both wireless convenience and power supply versatility.
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 safe and efficient charging by adapting to different power supplies and device states, preventing circuit damage and voltage drops, and allowing seamless transitions between charging modes.
Implementation Method 1
a power receiving antenna configured to receive power from a power supply using a first frequency band
Implementation Method 2
a communication circuit configured to communicate with the power supply using a second frequency band
Data Source
AI summary
An apparatus for changing a wireless charging mode includes a power receiving antenna configured to receive power from a power supply using a first frequency band, a communication circuit configured to communicate with the power supply using a second frequency band, a power management circuit configured to charge a battery using the received power, and a control circuit configured to be electrically connected with the power management circuit. In addition, various embodiments ascertained through the specification are possible.