Inductive Wireless Power Link With In-Band Virtual Data Communication
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Solution Overview
Problem
Existing wireless power transfer systems face inefficiencies and increased costs due to the use of additional antennas and circuitry for data communication, leading to interference, harmonic distortion, and increased bill of materials, while higher power levels degrade communication capabilities.
Innovation Solution
A wireless power transfer system that utilizes inductive coupling to encode data into wireless power signals, enabling virtual two-way communication through buffers and controllers to simulate a two-wire connection, allowing for high-power data transfer without additional hardware and maintaining compatibility with legacy systems.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If electromagnetic signals are transmitted through a shared wireless medium for both power transfer and data communication, then wireless power transfer capability is achieved, but signal interference and communication reliability deteriorate
Solution Approach 1:
The patent segments the wireless communication spectrum into separate frequency bands: one band dedicated for power transfer signals and another band for data communication signals. This frequency division allows both power transfer and data communication to occur simultaneously without interference, resolving the contradiction between achieving wireless power transfer capability and maintaining communication reliability.
Solution Approach 2:
The patent introduces virtualized wired communication channels as an intermediary layer that translates wireless communications into virtual wired connections. This intermediary mechanism isolates the power transfer signals from data communication signals, preventing direct interference while maintaining both functions, thus resolving the reliability issue when wireless power transfer is implemented.
2Reliability
If traditional wired communication infrastructure is deployed alongside wireless power transfer, then communication reliability is maintained, but system complexity and deployment cost increase
Solution Approach 1:
The patent creates a unified wireless communication infrastructure that serves dual purposes: transferring power wirelessly and conducting data communication simultaneously through virtualized wired channels. This multi-functional system eliminates the need for separate wired communication infrastructure, reducing system complexity and deployment costs while maintaining communication reliability.
Solution Approach 2:
The patent replaces traditional physical wired communication infrastructure with virtualized communication channels that operate over the wireless medium. This substitution eliminates the need for physical cable deployment while maintaining the reliability of wired communication, thereby reducing system complexity without sacrificing communication performance.
3Stability of the object's composition
If separate infrastructure is used for wireless power transfer and wired communication, then communication stability is maintained, but deployment cost and time increase
Solution Approach 1:
The patent merges wireless power transfer infrastructure and communication infrastructure into a single unified system. By combining these two functions into one infrastructure, the patent eliminates redundant components and deployment requirements, reducing both the quantity of infrastructure resources needed and the associated deployment costs and time, while maintaining communication stability through virtualization.
Solution Approach 2:
The unified wireless infrastructure is designed to perform multiple functions simultaneously: power transfer, data communication, and stable signal transmission. This multi-functional design reduces the overall infrastructure requirements compared to deploying separate dedicated systems, thereby reducing deployment cost and time while maintaining communication stability.
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
Facilitates faster data communication and reduces system complexity by eliminating the need for wired connections, while maintaining compatibility with legacy systems and enabling higher power transfer without degrading communication standards.
Implementation Method 1
Wireless communication systems transmit data over a shared wireless medium... electromagnetic signals are transmitted through a shared wireless medium for both power transfer and data communication
Data Source
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AI summary
Wireless power transfer systems, disclosed, include a wireless power transmission system and a wireless power receiver system. The wireless power transmission system includes a transmitter antenna configured to couple with a receiver antenna to transmit alternating current (AC) wireless signals to the receiver antenna. Antenna coupling may be inductive and may operate in conformance to a wireless power and data transfer protocol. A transmission controller drives the transmitter antenna at an operating frequency, and either the wireless power transmission system or the wireless power receiver system may damp the wireless power transmission to create a data signal containing a serial asynchronous data signal.