Self-Resonating Coil Wireless Power Transfer for Long-Range Charging
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Solution Overview
Problem
Current wireless power transfer technologies face limitations such as restricted transmission distances, directional signal propagation, significant signal loss over long distances, interference from other devices, and inability to maintain effective power transfer through obstacles, limiting their practical applications and scalability.
Innovation Solution
An advanced on-air energy transmission system utilizing magnetic resonance technology and radio frequency (MRT-E) with self-resonating coils and adaptive field modulation, enabling efficient energy transfer up to 30 meters with omnidirectional capability, capable of powering multiple receivers simultaneously and maintaining signal integrity through obstacles.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Length of stationary object
If wireless power transfer is performed over long distances, then transmission range is improved, but signal loss increases significantly
Solution Approach 1:
The patent applies magnetic resonance technology where both transmitting and receiving coils are tuned to the same resonant frequency. This resonance condition creates a strongly coupled magnetic field that maintains energy transfer efficiency over extended distances, effectively reducing signal loss while improving transmission range beyond conventional inductive charging limits.
Solution Approach 2:
The system dynamically adjusts operating parameters including frequency tuning and power levels to optimize energy transfer at different distances. By changing the resonant frequency parameters to match between transmitter and receiver, the system maintains efficient power transfer even at extended ranges where conventional systems would experience excessive signal loss.
2Loss of energy
If directional antennas are used for focused power transfer, then power delivery efficiency is improved, but system flexibility deteriorates due to alignment requirements
Solution Approach 1:
Magnetic resonance creates an omnidirectional field pattern where both transmitting and receiving coils resonate at the same frequency. This resonance coupling allows power transfer from any direction without requiring precise alignment, maintaining high efficiency while providing 360-degree flexibility in device placement and orientation.
Solution Approach 2:
The resonant coupling mechanism serves multiple functions simultaneously: it provides focused energy transfer, enables omnidirectional operation, and allows flexible positioning. The same resonant frequency tuning that improves power delivery efficiency also inherently provides the flexibility to operate without precise alignment requirements.
3Length of stationary object
If magnetic resonance technology is used for extended range, then transmission distance is improved, but device complexity increases
Solution Approach 1:
The patent employs resonant oscillation at specific frequencies to extend transmission distance. By tuning both transmitting and receiving coils to match resonant frequencies, the system achieves extended range through constructive interference and energy accumulation, rather than requiring complex high-power amplification systems.
Solution Approach 2:
The system uses periodic oscillation at resonant frequencies to transfer energy efficiently over distance. This periodic magnetic field generation and resonance coupling creates a self-reinforcing energy transfer mechanism that extends transmission distance without proportionally increasing device complexity, as the resonance naturally amplifies the energy transfer.
4Loss of energy
If conventional inductive charging is used, then power transfer efficiency is improved at close range, but transmission range is restricted to near-field only
Solution Approach 1:
The patent extends near-field inductive charging to mid-range distances by implementing magnetic resonance coupling. Both transmitting and receiving coils are tuned to the same resonant frequency, creating a strongly coupled magnetic field that maintains high transfer efficiency while extending the operational range from centimeters to meters, bridging the gap between near-field and far-field charging.
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, reliable, and scalable wireless power transfer across diverse environments, supporting up to 6 watts of power to multiple devices without line-of-sight requirements, reducing battery reliance, and minimizing environmental impact.
Implementation Method 1
Wireless power transfer with self-resonating coils
Implementation Method 2
magnetic resonance technology and radio frequency (MRT-E)
Implementation Method 3
adaptive field modulation, enabling efficient energy transfer up to 30 meters with omnidirectional capability
Data Source
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AI summary
The present invention relates to an advanced on-air energy transmission system utilizing magnetic resonance technology and radio frequency (MRT-E), designed to enable efficient energy transfer over practical distances for daily applications.