Wireless Power Receiver Switching for Multi-Device Charging
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Solution Overview
Problem
Existing resonance-type radio power transmission systems face inefficiencies when multiple power receiving apparatuses are present, as energy is wasted if some apparatuses do not require power, leading to reduced power supply for those that do.
Innovation Solution
Incorporating a power supply controlling switch in the power receiving apparatus to enable it to act as a repeater, redirecting unused energy to other apparatuses that need power, and using a control system to manage switch states based on battery charge status or user input.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple power receiving apparatuses are present in a resonance-type radio power transmission system, then the system can serve more devices, but energy is wasted when some apparatuses do not require power, leading to reduced power supply for those that do
Solution Approach 1:
The control unit monitors the power reception status of multiple power receiving apparatuses and adjusts the power transmission accordingly. When a apparatus is fully charged or does not need power, the system receives feedback and reduces or stops transmission to that specific device, preventing energy waste while maintaining supply to devices that still need power.
Solution Approach 2:
The power transmission system dynamically adjusts the transmission parameters based on the real-time needs of multiple power receiving apparatuses. The system can change the power distribution in real-time, allocating more power to devices that need it and less or none to devices that are fully charged, optimizing overall system efficiency.
2Adaptability or versatility
If power is transmitted to multiple power receiving apparatuses simultaneously, then more devices can be charged, but the power supplied to each individual apparatus is reduced
Solution Approach 1:
The system dynamically adjusts power allocation based on the charging status of each apparatus. When one apparatus is fully charged, the system automatically redirects the full power transmission capacity to remaining devices that still need charging, ensuring they receive adequate power without being diluted by simultaneous distribution to all devices.
Solution Approach 2:
The control unit continuously monitors the charging status of each power receiving apparatus and uses this feedback to optimize power distribution. When feedback indicates that certain apparatuses are fully charged, the system adjusts transmission parameters to concentrate power on devices that still require charging, maintaining optimal charging speed for remaining devices.
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
Ensures efficient power distribution by preventing unnecessary consumption and optimizing energy transmission to fully charge all apparatuses quickly.
Implementation Method 1
The resonance element 21 and the excitation element 22 are configured so as to have a relationship in which they are coupled strongly to each other by electromagnetic induction
Implementation Method 2
a method wherein resonance of an electromagnetic field is utilized to transmit power
Data Source
Figure 1
Figure 2
Figure 3~4
AI summary
A power receiving apparatus, comprising: a resonance element having a specific resonance frequency and adapted to couple in a non-contacting relationship to a power transmitting apparatus through a resonance relationship; rectification means for rectifying alternating current of the resonance frequency in response to energy received by said resonance element; switching means for cutting off a supplying path of the alternating current from said resonance element to said rectification means; a radio communication means adapted to communicate with the power transmitting apparatus; and a control section configured to transmit charge up information to the power transmitting apparatus through the radio communication means.