Wireless Power and Data Transfer Using Strongly Coupled Magnetic Resonance
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Solution Overview
Problem
Current wireless technologies lack the capability to simultaneously and efficiently transfer both power and data through a wirelessly coupled transmitter-receiver system, limiting their application in devices that require simultaneous power and data transmission.
Innovation Solution
A wireless power and data transfer system is designed with a transmitter and receiver configuration that uses strongly coupled magnetic resonance (SCMR) to transmit power and data between devices, featuring a transmitter with a source element and multiple resonator elements on different layers, and a receiver with a load element and resonator elements, allowing for simultaneous power transmission and data modulation and demodulation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If traditional wireless power transfer technology is used, then power can be transferred wirelessly, but data transfer capability is not provided
Solution Approach 1:
The wireless power transfer system is designed to perform multiple functions: it can transfer power wirelessly and simultaneously transfer data bidirectionally between transmitter and receiver, eliminating the need for separate data communication channels and reducing overall system complexity
Solution Approach 2:
The patent combines power transfer and data transfer functions into a single integrated wireless communication channel, where the same electromagnetic field is used for both energy transmission and information modulation, simplifying the system architecture
2Productivity
If wireless power transfer is implemented, then power transmission is achieved, but efficient simultaneous data transfer is not possible
Solution Approach 1:
The system segments the electromagnetic spectrum into different frequency components, using specific frequency ranges for power transfer while utilizing other frequency ranges for data modulation and demodulation, allowing both functions to operate efficiently without interference
Solution Approach 2:
The receiver can demodulate data from the transmitted signal and send feedback information back to the transmitter through the same wireless channel, enabling adaptive modulation and error correction to maintain data transmission reliability while preserving power transfer efficiency
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
The system achieves efficient power transfer with efficiencies between 80% and 90% over a range of frequencies and secure data transmission with low amplitude near the noise floor, enabling applications such as wearable sensors and structural health monitoring without the need for batteries.
Implementation Method 1
A wireless power and data transfer system is designed with a transmitter and receiver configuration that uses strongly coupled magnetic resonance (SCMR) to transmit power and data between devices
Data Source
AI summary
A wireless power and data transfer system including a transmitter and a receiver is provided for wirelessly transmitting power from a transmitter to a receiver and wirelessly transmitting data from the receiver to the transmitter. The transmitter comprises a transmitter substrate, a source element forming an inner loop on the transmitter substrate, a plurality of transmitter resonator elements each forming an outer loop on the transmitter substrate; and a plurality of transmitter capacitors connected to the plurality of transmitter resonator elements, respectively. The receiver comprises a receiver substrate, a load element forming an inner loop on the receiver substrate, a plurality of receiver resonator elements each forming an outer loop on the receiver substrate; and a plurality of receiver capacitors connected to the plurality of receiver resonator elements, respectively.