Wireless Power Transmitter Dynamic Allocation for Multiple Receivers
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Solution Overview
Problem
Existing wireless charging technologies face inefficiencies in distributing power to multiple wireless power receivers, as the power transmission capabilities of the transmitter may not match the varying demands of individual receivers, leading to suboptimal charging conditions.
Innovation Solution
A method where a wireless power transmitter receives demand power information from each receiver, identifies its own capabilities, and adjusts the power transmission to ensure that each receiver receives a power level within its supported range, using a communication unit to send power adjustment commands and transmit power accordingly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a single wireless power transmitter charges multiple wireless power receivers simultaneously, then the charging service coverage is improved, but the power distribution efficiency deteriorates due to mismatch between transmitter power and individual receiver demands
Solution Approach 1:
The transmitter segments the total power into multiple independent power channels, each dedicated to a specific receiver. The power distribution module divides the input power into first power for the first receiver and second power for the second receiver, allowing independent control and optimization for each receiver's specific power demand.
Solution Approach 2:
The system dynamically adjusts power allocation based on real-time receiver demands. The controller receives power information from both receivers, determines their respective power requirements, and continuously optimizes the power distribution to match changing conditions, ensuring each receiver receives appropriate power levels.
2Ease of operation
If the wireless power transmitter transmits power without adjusting for individual receiver demands, then the device operation simplicity is improved, but the charging efficiency deteriorates due to power mismatch
Solution Approach 1:
The system implements feedback mechanisms where receivers transmit power information back to the transmitter. The controller uses this feedback to determine appropriate power levels and adjusts the power distribution accordingly, creating a closed-loop control system that optimizes charging efficiency while maintaining operational simplicity.
Solution Approach 2:
The transmitter changes power parameters (voltage, current, frequency) based on receiver-specific requirements. By adjusting these parameters dynamically for each receiver, the system achieves efficient power transfer without requiring complex manual intervention, maintaining ease of operation while improving charging efficiency.
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 distribution to multiple wireless power receivers, optimizing charging efficiency by matching power transmission with individual receiver demands and the transmitter's capabilities, thereby improving overall charging performance.
Implementation Method 1
The wireless charging technology is a system that uses wireless power transmission and reception
Data Source
AI summary
Methods and apparatuses are provided for controlling a wireless power transmitter. First power for charging a first wireless power receiver is transmitted. Demand power information of a second wireless power receiver is received. The demand power information includes a maximum power for the second wireless power receiver. A controller identifies whether the wireless power transmitter is capable of providing the maximum power. A power adjustment command is transmitted to the second wireless power receiver, if the wireless power transmitter is not capable of providing the maximum power. The power adjustment command requests to reduce a magnitude of power to be received by the second wireless power receiver to a level within a range that the wireless power transmitter is capable of supporting. Second power for charging the first wireless power receiver and the second wireless power receiver is transmitted based on at least the reduced magnitude of power.