Wireless Charging Area Indication for Multi-Protocol Interoperability
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Solution Overview
Problem
Existing wireless charging systems face challenges in interoperability between devices supporting different wireless charging protocols, making it difficult for users to determine the compatible charging area for their devices, especially when multiple protocols are supported on a single charging surface.
Innovation Solution
A method that involves detecting the presence of an object near a wireless power transmitter, determining its compatibility with the supported protocols, and providing an indication of a compatible charging area, either by sending ping signals and analyzing responses or detecting resonant shifts, to guide the user in repositioning the device for successful charging.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a single charging surface supports multiple wireless charging protocols, then the adaptability of the charging system is improved, but the device complexity increases
Solution Approach 1:
The charging surface is divided into multiple independent charging areas, each dedicated to a specific wireless charging protocol. This segmentation allows each area to be optimized for its protocol without interfering with others, resolving the contradiction by providing multi-protocol support through spatial division rather than integrating all protocols into a single complex system.
Solution Approach 2:
Different regions of the charging surface are assigned different protocol capabilities, creating local specialization. Each charging area has tailored characteristics optimized for its designated protocol, allowing the overall system to support multiple protocols while each local region maintains simple, protocol-specific implementation.
2Ease of operation
If the system provides indication of compatible charging area, then the ease of operation is improved, but the device complexity increases
Solution Approach 1:
The system pre-configures and marks different charging areas with their respective protocol identifiers before the user places their device. Visual indications are prepared in advance, allowing users to quickly identify the appropriate charging area without requiring complex real-time detection or analysis when a device is placed on the charger.
3Measurement precision
If ping signals are sent to detect object compatibility, then the measurement precision is improved, but the loss of time increases
Solution Approach 1:
The system performs compatibility detection using ping signals during the initial object detection phase, before full charging begins. By conducting protocol verification preliminarily and using the pre-configured area information, the system achieves accurate compatibility measurement while minimizing the time impact on the overall charging process.
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
Ensures seamless compatibility between wireless charging transmitters and receivers by identifying and indicating the correct charging area, enhancing user experience and reducing the complexity of supporting multiple protocols on a single charging surface.
Implementation Method 1
Wireless charging may work based on the principle of inductive charging... The power transmitter may include a primary coil which when energized induces an electromagnetic field into the adjacent secondary coil in the power receiver.
Implementation Method 2
The determining whether the object is compatible with the first wireless power protocol may also include sending a ping signal according to the first wireless power protocol; and determining whether a response is received in a predetermined time.
Data Source
AI summary
In some example embodiments, there may be provided a method, which may include detecting a presence of an object at least proximate to a first wireless power transmitter; determining whether the object is compatible with a first wireless power protocol of the first wireless power transmitter; and providing an indication representative of a location of a second wireless power transmitter, when the determining indicates the object is incompatible with the first wireless power protocol of the first wireless power transmitter. Related systems, methods, and articles of manufacture are also disclosed.