Wireless Power and Communication Antenna Segmentation
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Solution Overview
Problem
Conventional power supply systems cannot communicate with electronic devices while supplying charging power, making it impossible to confirm the device's state or control the power supply effectively.
Innovation Solution
An electronic device with a power receiving unit, information transmission units, and a control unit that allows for wireless communication with a power supply apparatus to transmit status information and control power supply based on received power, enabling bi-directional communication and power control.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the power supply apparatus uses the same antenna to transmit commands and electric power, then the device complexity is reduced, but the ability to communicate during power supply is lost
Solution Approach 1:
The patent divides the single antenna system into two functional paths: a power supply path for transmitting electric power and a communication path for transmitting commands and receiving responses. This segmentation allows simultaneous power transmission and communication without interference, resolving the contradiction between simplified hardware and communication capability.
Solution Approach 2:
The patent introduces a communication unit as an intermediary component that handles all data transmission tasks. This separate communication interface acts as a mediator between the power supply apparatus and electronic device, enabling reliable command transmission and status monitoring without affecting the power transmission channel.
2Productivity
If the power supply apparatus lowers output resistance to supply charging power, then the charging efficiency is improved, but the ability to transmit commands is degraded
Solution Approach 1:
The patent separates the power transmission function and communication function into independent channels. The power supply unit can operate at optimal output resistance for efficient charging, while the communication unit independently transmits commands and receives responses without being affected by the power transmission conditions.
Solution Approach 2:
The patent implements a feedback mechanism where the electronic device sends response signals back to the power supply apparatus through the communication unit. This feedback allows the power supply apparatus to confirm device status and adjust power transmission accordingly, ensuring reliable operation even when transmitting at high power levels.
3Ease of operation
If the power supply apparatus cannot communicate during power supply, then the control simplicity is maintained, but the power management capability is reduced
Solution Approach 1:
The patent introduces a communication unit as an intermediary that handles all control and status information exchange. This separate communication interface enables sophisticated power management capabilities including status monitoring, command transmission, and adaptive control without complicating the power transmission itself.
Solution Approach 2:
The patent implements bidirectional communication where the electronic device can send status information back to the power supply apparatus. This feedback mechanism enables the power supply apparatus to adaptively manage power transmission based on real-time device status, enhancing power management capability while maintaining operational simplicity.
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 the power supply system to appropriately control the power supplied to the electronic device by allowing communication and status confirmation even during charging, improving power management and device control.
Implementation Method 1
the power supply apparatus supplies electric power wirelessly (without connecting a connector) to the electronic device
Implementation Method 2
a communication unit that transmits and receives information to and from the power supply apparatus wirelessly
Data Source
AI summary
An electronic device includes a power receiving unit that receives power wirelessly from a power supply apparatus, a first unit that transmits, in response to a command received from the power supply apparatus, first information indicating a status of the electronic device, a second unit that transmits second information indicating a status of the electronic device, and a control unit that controls the first unit or the second unit in such a way as to transmit at least one of the first information and the second information to the power supply apparatus.