Selective Damping Windows in Wireless Power Signals for Data Fidelity
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current high frequency wireless power transfer systems face challenges in achieving higher power levels (>300 mW) without degrading data communications, leading to inefficiencies and potential damage to legacy equipment, and often result in out-of-band interference and increased electromagnetic interference.
Innovation Solution
The implementation of a damping circuit configured to reduce rise and fall times during signal transmission, using components such as damping diodes, capacitors, and resistors, to enhance signal quality and maintain data fidelity, while allowing for higher power transfer without degrading communications standards.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If higher power levels are used in wireless power transfer, then power transmission capability is improved, but data communication quality deteriorates and legacy equipment may be damaged
Solution Approach 1:
The patent implements periodic damping of the wireless power signal at specific intervals (e.g., every 10-20 milliseconds) to create protective windows that prevent signal degradation and equipment damage while allowing high power transmission during non-damping periods. This periodic intervention maintains communication quality without continuously reducing power transmission capability.
Solution Approach 2:
The system performs preliminary damping actions before potential signal degradation or equipment damage can occur. By proactively damping the signal at predetermined intervals and monitoring communication quality in advance, the system prevents deterioration rather than reacting to it after damage occurs.
2Adaptability or versatility
If additional antennas and circuitry are used for data communication, then communication capability is improved, but device complexity and cost increase
Solution Approach 1:
The patent makes the wireless power transmission system multi-functional by enabling it to perform both power transmission and data communication through the same antenna and circuitry. The system modulates data onto the power signal itself, eliminating the need for separate communication hardware while maintaining both functions simultaneously.
Solution Approach 2:
The patent merges the power transmission and data communication functions into a single integrated system. By combining these functions, the system reduces component count, simplifies device architecture, and lowers cost while maintaining both capabilities through the use of a shared antenna and signal processing circuitry.
3Adaptability or versatility
If additional antennas and circuitry are used for data communication, then communication capability is improved, but electromagnetic interference increases
Solution Approach 1:
The patent merges power transmission and data communication into a single electromagnetic signal, eliminating the separate communication antenna that would generate additional electromagnetic interference. By combining these functions, the system reduces the total electromagnetic radiation sources while maintaining both capabilities through signal modulation techniques.
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
This approach enables faster data rates and enhanced data ranges while maintaining data fidelity and efficiency, even at higher power levels, by selectively damping AC wireless signals and compensating for power loss during active mode operations.
Implementation Method 1
damping circuit configured to reduce rise and fall times during signal transmission
Implementation Method 2
inductive wireless power transfer, which occurs when magnetic fields created by a transmitting element induce an electric field, and hence, an electric current, in a receiving element
Data Source
AI summary
A method for operating a wireless power transmission system includes providing a driving signal for driving a transmission antenna of the wireless power transmission system, the driving signal based, at least, on an operating frequency for the wireless power transmission system. The method further includes inverting, by the at least one transistor, a direct current (DC) input power signal to generate an AC wireless signal at the operating frequency, based on provided driving signals. The method includes receiving, at a damping circuit, damping signals configured for switching the damping transistor to one of an active mode and an inactive mode to control signal damping, wherein the damping signals switch to the active mode periodically. The method further includes selectively damping, by the damping circuit, the AC wireless signals, during transmission of the wireless data signals if the damping signals set the damping circuit to the active mode.