Wireless Power Receiver Demand Adjustment to Match Available Power
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Solution Overview
Problem
Current wireless power transmission systems lack active recognition of the power transmission environment between the transmitter and receiver, necessitating bidirectional communication for effective power transfer.
Innovation Solution
The implementation of a wireless power receiver and transmitter system that uses resonance and bidirectional communication to actively manage power transmission by sharing state information, including power demand and availability, through in-band and out-of-band communication methods, optimizing power transfer efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If wireless power transmission is performed without bidirectional communication, then the system structure is simpler, but the power transmission efficiency and adaptability deteriorate
Solution Approach 1:
The patent implements bidirectional communication between wireless power transmitter and receiver, allowing the receiver to send power status information (charge level, temperature, power demand) back to the transmitter. This feedback mechanism enables the transmitter to dynamically adjust transmission parameters, optimizing power transfer efficiency while preventing overheating or overcharging.
Solution Approach 2:
The wireless power receiver autonomously monitors its own power status (charge level, temperature, power requirements) and communicates this information to the transmitter. The receiver essentially manages its own charging process by providing real-time status updates, enabling the transmitter to adapt without complex external control systems.
2Adaptability or versatility
If bidirectional communication is implemented for power status sharing, then power transmission adaptability improves, but device complexity increases
Solution Approach 1:
The patent employs a universal communication protocol that handles multiple functions through a single bidirectional channel: power status reporting, power demand negotiation, and transmission control. This multi-functional approach achieves high adaptability without requiring separate dedicated systems for each function, thereby limiting the increase in overall device complexity.
3Power
If power demand is not adjusted according to available power, then the wireless power receiver can request maximum power, but power transmission reliability deteriorates
Solution Approach 1:
The patent implements dynamic power demand adjustment where the wireless power receiver continuously monitors the available power from the transmitter and adjusts its power demand accordingly. This dynamic adaptation ensures that the receiver requests only the power that can be reliably supplied, preventing transmission failures, overheating, or system instability while maximizing the utilization of available power capacity.
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 active and efficient power transmission by dynamically adjusting power delivery based on real-time state information, improving power transfer efficiency and adaptability between the wireless power transmitter and receiver.
Implementation Method 1
the long-distance transmission using the magnetic induction, the resonance and the short-wavelength radio frequency has been used as the wireless energy transfer scheme
Implementation Method 2
a method for transmitting electric energy by irradiating electromagnetic waves, such as radio waves or lasers, has been suggested
Data Source
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AI summary
A method for transmitting wireless power from a wireless power transmitter, the method can include performing a negotiation process with a wireless power receiver for generating a negotiated power transmission condition, the negotiation process including receiving a request signal from the wireless power receiver to retrieve a capability of the wireless power transmitter, the capability including an available amount of power of the wireless power transmitter, transmitting the available amount of power to the wireless power receiver, in response to the request signal, to allow the wireless power receiver to determine a demanded amount of power based on the available amount of power of the wireless power transmitter, and subsequently, receiving the demanded amount of power as the negotiated power transmission condition from the wireless power receiver; and transmitting wireless power to the wireless power receiver based on the negotiated power transmission condition when the demanded amount of power is allowable by the wireless power transmitter based on the capability of the wireless power transmitter.