Resonator Design for Optimum Power Division in Wireless Systems
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Solution Overview
Problem
Current wireless power transmission systems face inefficiencies in power division among multiple target devices due to variations in distance and matching requirements between source and target resonators, leading to suboptimal power transmission efficiency and potential device malfunction or power wastage.
Innovation Solution
A method for designing a target resonator that determines a figure of merit (FOM) based on a power dividing ratio, using a design constant and error margin to ensure optimal power division, with design parameters such as size, conductor thickness, and inductance value adjusted to match the power requirements of connected loads.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a target resonator is designed using conventional methods, then the resonator can be manufactured, but power transmission efficiency deteriorates due to variations in distance and matching requirements between source and target resonators
Solution Approach 1:
The patent applies parameter changes by determining the figure of merit (FOM) of the target resonator based on the power dividing ratio and adjusting design parameters (size, conductor thickness, inductance value) to optimize power transmission efficiency for different power requirements and distances
2Loss of energy
If the resonator design does not account for power dividing ratio, then manufacturing is simpler, but power transmission efficiency is suboptimal and energy wastage occurs
Solution Approach 1:
The patent applies preliminary action by determining the FOM and design parameters of the target resonator in advance based on the power dividing ratio and power requirements, ensuring optimal power transmission efficiency before actual power transmission occurs
Solution Approach 2:
The patent replaces traditional trial-and-error mechanical design approaches with a calculated design method based on FOM and power dividing ratio, substituting empirical adjustment with mathematical optimization to reduce energy wastage
3Reliability
If the resonator FOM does not satisfy the power dividing ratio, then design is easier, but device malfunction may occur due to improper power division
Solution Approach 1:
The patent applies feedback by using the power dividing ratio as a design constraint to determine the FOM of the target resonator, ensuring that the resonator design reflects the actual power distribution requirements and prevents device malfunction
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 efficient power division among multiple target devices, maintaining maximum power transmission efficiency and preventing device malfunctions by ensuring the resonator's FOM satisfies the power dividing ratio, thus optimizing power reception and reducing energy wastage.
Implementation Method 1
Magnetic coupling or resonance coupling may be formed between the source resonator and the target resonator
Implementation Method 2
Magnetic coupling or resonance coupling may be formed between the source resonator and the target resonator
Data Source
AI summary
A wireless power transmission system, a resonator in the wireless power transmission system, and a resonator design method for optimum power division are provided. A power receiver of the wireless power transmission system, includes a resonator configured to receive a power from a power transmitter. The power receiver further includes a power supply configured to supply the received power to a load. A figure of merit (FOM) of the resonator corresponds to a power dividing ratio of the power transmitter.