Reconfigurable Wireless Charging Tuning for Power-Data Tradeoffs
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Solution Overview
Problem
Wireless charging devices face inefficiencies in power transfer and data communication due to varying relative positioning and coupling in 3D space, with symmetric impedance matching improving communication quality at the cost of power transfer efficiency and asymmetric matching enhancing power transfer at the expense of data quality.
Innovation Solution
A dynamically reconfigurable transmitter with a controller that adjusts antenna impedance matching between symmetric and asymmetric configurations based on transmission type and efficiency, using a variable inductor with switchable rings to optimize power and data communication.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If symmetric impedance matching is used, then data communication quality is improved, but power transfer efficiency deteriorates
Solution Approach 1:
The patent implements dynamic reconfiguration of the impedance matching network, allowing the system to switch between symmetric and asymmetric configurations based on operational requirements. The controller dynamically adjusts the matching network parameters during operation, enabling the system to optimize for either data communication or power transfer efficiency as needed, rather than being fixed in one configuration.
Solution Approach 2:
The patent changes the impedance matching parameters dynamically by reconfiguring the matching network components. The controller modifies the electrical parameters (impedance values, coupling coefficients) of the transmitter circuitry to switch between symmetric and asymmetric states, thereby adapting the system's electrical characteristics to match the current operational priority.
2Loss of energy
If asymmetric impedance matching is used, then power transfer efficiency is improved, but data communication quality deteriorates
Solution Approach 1:
The system dynamically switches between asymmetric and symmetric impedance matching configurations based on the current operational mode. When power transfer is prioritized, the controller configures the matching network for asymmetric operation to maximize efficiency. When data communication is prioritized, the system transitions to symmetric configuration to ensure signal integrity.
Solution Approach 2:
The controller modifies the electrical parameters of the impedance matching network to achieve asymmetric configuration, changing the impedance values and coupling characteristics to optimize power transfer. This parameter adjustment allows the system to extract maximum power transfer efficiency when needed, while maintaining the capability to revert to symmetric mode for high-quality data communication.
3Device complexity
If fixed impedance matching configuration is used, then device complexity is reduced, but adaptability to different transmission types deteriorates
Solution Approach 1:
The patent introduces dynamic reconfiguration capability to the transmitter, allowing it to adapt its impedance matching configuration in real-time based on the transmission type and efficiency requirements. The controller monitors operational conditions and automatically adjusts the matching network, enabling the system to handle both power transfer and data communication optimally without requiring multiple fixed configurations.
Solution Approach 2:
The patent creates a universal impedance matching network that can perform both symmetric and asymmetric matching functions within a single reconfigurable structure. This multi-functional design allows the same hardware to serve both data communication and power transfer purposes efficiently, eliminating the need for separate fixed configurations for each function while maintaining simplicity through integrated control.
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
Improves power transfer efficiency by 10-15% and enhances data communication quality by dynamically switching between impedance matching configurations, addressing the trade-offs of symmetric and asymmetric tuning.
Implementation Method 1
The dynamically reconfigurable transmitter may include a dynamically variable inductor (e.g., comprising at least one ring switch) to dynamically variable inductance
Implementation Method 2
A controller may be configured to dynamically reconfigure tuning of the dynamically reconfigurable transmitter (e.g., reconfigure between asymmetric and symmetric antenna impedance matching)
Data Source
AI summary
Methods, systems, and computer program products are provided for dynamically reconfigurable tuning for wireless power and data communications. A wireless charging (WLC) device may improve the efficiency of variable power and data communication to a chargeable device with variable relative positioning and coupling in 3D space by dynamically reconfiguring transmitter tuning. A WLC transmitter may be dynamically reconfigured (e.g., between symmetric and asymmetric antenna impedance matching) based on at least one of the type of wireless transmission or a wireless transmission efficiency for the type of wireless transmission. For example, the controller may dynamically select a configuration for wireless power (e.g., or data) transmission based on the most efficient configuration determined from dynamically measured efficiencies for asymmetric and symmetric wireless power (e.g., or data) transmission. Tuning may be dynamically reconfigured, for example, by controlling an automatically variable inductor (e.g., comprising at least one ring switch) to automatically vary inductance.