Wireless Power Transmitter Dynamic Negotiation
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Solution Overview
Problem
Current wireless power transmission systems face challenges in dynamically adjusting power levels and performing authentication in real-time, especially when foreign substances are detected or the charging environment changes, limiting their ability to operate efficiently and safely.
Innovation Solution
A method and apparatus that include a communication/control unit for negotiating power indicators with a wireless power reception apparatus, allowing for dynamic power adjustments and authentication through magnetic coupling, enabling the wireless power transmission apparatus to autonomously adjust power levels and initiate communication based on ambient conditions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the wireless power transmission apparatus transmits only a response to requests from the reception apparatus, then the communication protocol is simple, but the transmission apparatus cannot actively adjust power levels or perform authentication in real-time
Solution Approach 1:
The patent inverts the traditional communication role by enabling the transmission apparatus to initiate communication and send requests to the reception apparatus, rather than only responding to reception apparatus requests. This allows the transmission apparatus to actively negotiate power levels and perform authentication.
Solution Approach 2:
The patent introduces dynamic communication capabilities where the transmission apparatus can adaptively initiate communication based on detected conditions (foreign substances, environment changes), allowing real-time power level adjustments and authentication operations.
2Device complexity
If the wireless power transmission apparatus cannot initiate communication, then the device complexity is low, but the system cannot detect and respond to foreign substances or environment changes in real-time
Solution Approach 1:
The patent implements preliminary detection of foreign substances and environment changes before power transmission begins, allowing the system to preemptively identify safety issues and adjust communication and power levels accordingly.
Solution Approach 2:
The patent establishes a feedback mechanism where the transmission apparatus continuously monitors the charging environment and communicates with the reception apparatus to adjust power levels based on detected conditions, improving system reliability and safety.
3Device complexity
If the transmission apparatus only responds to reception requests, then the power management is simple, but the system cannot optimize power levels based on ambient conditions
Solution Approach 1:
The patent introduces dynamic power management where the transmission apparatus can actively negotiate and adjust power levels based on ambient conditions, foreign substance detection, and reception apparatus status, optimizing power transmission efficiency.
Solution Approach 2:
The patent enables real-time changes in power transmission parameters through active communication, allowing the system to optimize power levels, frequency, and other parameters based on detected conditions and reception requirements.
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
Enables efficient and safe power management by allowing the wireless power transmission apparatus to dynamically adjust power levels and authenticate in real-time, ensuring optimal operation even in changing environments.
Implementation Method 1
transmitting a wireless power to the wireless power reception apparatus by generating magnetic coupling in a primary coil
Data Source
AI summary
A wireless power transmitter and a wireless power receiver are discussed. The wireless power transmitter can include a power converter configured to transfer wireless power to a wireless power receiver, and a communicator/controller configured to control the wireless power. The wireless power transmitter can receive a received power (RP) packet which informs a received power value, transmit in response to the RP packet a bit pattern related to requesting permission to communicate, receive a response packet which invites the wireless power transmitter to send a data packet, transmit a specific packet includes a specific power level in response to the response packet, and negotiate a guaranteed power level with the wireless power receiver. The guaranteed power level can be less than or equal to the specific power level.