Resonator Isolation System for Wireless Power Transmission
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing wireless power transmission technologies face limitations in efficiency and flexibility due to the need for power amplifiers, rectifying operations, and impedance matching, especially when transmitting power over varying distances and to multiple receivers.
Innovation Solution
A Resonator Isolation (RI) system that uses a source resonator and a target resonator with a switching unit and diode configuration to enable efficient wireless power transmission without the need for power amplifiers or rectifiers, allowing for flexible extension to multiple transmitters and receivers by leveraging mutual resonance and self-resonance phenomena.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If power amplifiers and rectifiers are used in wireless power transmission, then power can be transmitted over varying distances, but the device complexity and sensitivity to distance changes increase
Solution Approach 1:
The patent removes power amplifiers, rectifiers, and impedance matching circuits from the wireless power transmission system. By extracting these complex components, the system achieves simpler architecture while maintaining power transmission capability through direct resonator coupling and natural resonance phenomena.
Solution Approach 2:
The resonators in the patent utilize their own natural resonance characteristics to achieve power transmission. The source resonator and target resonator self-organize the energy transfer process through mutual resonance, eliminating the need for external control circuits and matching networks that would increase system complexity.
2Loss of energy
If impedance matching circuits are used, then power transmission efficiency can be optimized, but the sensitivity to distance changes and device complexity increase
Solution Approach 1:
The patent eliminates impedance matching circuits from the system architecture. Power transmission efficiency is maintained through direct resonant coupling between the source and target resonators, which naturally adjust their impedance through the resonance phenomenon without requiring external matching networks.
Solution Approach 2:
The system utilizes changes in resonance frequency and coupling strength as distance varies. By adjusting operational parameters such as resonator frequency and coupling configuration rather than using impedance matching circuits, the system maintains efficiency while reducing complexity and distance sensitivity.
3Adaptability or versatility
If multiple receivers are supported, then system versatility improves, but the need for power amplifiers and rectifiers increases device complexity
Solution Approach 1:
The resonator-based power transmission system provides universal power delivery capability that can serve multiple receivers simultaneously. Each resonator independently couples with the source resonator through mutual resonance, allowing the system to naturally extend to multiple devices without requiring additional power amplifiers or rectifiers for each receiver.
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 RI system achieves efficient power transmission with reduced complexity and sensitivity to distance changes, enabling wireless power delivery to multiple devices without the need for impedance matching, thus enhancing transmission efficiency and flexibility.
Implementation Method 1
A wireless power transmission and reception system using a resonance characteristic may include a source device configured to supply power, and a target device configured to receive the supplied power
Implementation Method 2
a resonator configured to transmit power to another resonator
Implementation Method 3
a switching unit including a transistor configured to be turned on to connect the power supply unit to the resonator, and to be turned off to disconnect the power supply unit from the resonator, based on a control signal
Implementation Method 4
a diode connected in series to the transistor
Data Source
AI summary
A wireless power transmission apparatus includes a resonator configured to transmit power to another resonator, and a power supply unit configured to supply power to the resonator. The apparatus further includes a switching unit including a transistor configured to be turned on to connect the power supply unit to the resonator, and to be turned off to disconnect the power supply unit from the resonator, based on a control signal, and a diode connected in series to the transistor.