Wireless Power Receiver Control for Communication Reliability
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Solution Overview
Problem
In wireless charging systems, the electronic apparatus sometimes receives power through the non-contact communication coil instead of the power receiving coil, leading to issues with appropriate wireless communication with the reader-writer, as the non-contact communication coil is not designed to handle power supply effectively.
Innovation Solution
The electronic apparatus includes a control unit that limits power supply to the load unit when transmitting data to the power supply apparatus, ensuring that power is managed appropriately to maintain effective wireless communication, and a power receiving unit that controls the power level for data transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If the non-contact communication coil is used to receive power from the power supply apparatus, then power can be received wirelessly, but the electronic apparatus cannot appropriately perform wireless communication with the reader-writer using the non-contact communication coil
Solution Approach 1:
The system is divided into two separate functional units: a power receiving coil dedicated to power reception and a non-contact communication coil dedicated to data communication. This segmentation prevents the communication coil from being overloaded by power reception tasks, ensuring reliable wireless communication while maintaining power reception capability through the specialized power receiving coil
Solution Approach 2:
The power receiving coil acts as an intermediary component that handles power reception separately from the communication system. By introducing this dedicated power receiving coil as a mediator, the non-contact communication coil is protected from power-related interference, allowing it to focus on its primary communication function without degradation in performance
2Power
If the non-contact communication coil receives power supplied from the power supply apparatus, then power can be received, but it causes an issue that the electronic apparatus cannot appropriately perform wireless communication
Solution Approach 1:
The system separates power reception and communication functions into distinct coils. The power receiving coil handles all power supply operations, while the non-contact communication coil is reserved exclusively for data communication with reader-writers. This functional segmentation ensures that power supply operations do not interfere with communication operations, maintaining ease of operation for both functions
Solution Approach 2:
Different parts of the wireless reception system are assigned different specialized functions: the power receiving coil is optimized for power reception with appropriate impedance and tuning, while the non-contact communication coil is optimized for communication with different impedance characteristics. This local quality differentiation ensures each component operates optimally in its designated function without compromising the other
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 solution enables the electronic apparatus to perform wireless communication effectively even when receiving power, by preventing excessive power from damaging the communication components and ensuring that data transmission is reliable.
Implementation Method 1
a power receiving unit that wirelessly receives power from a power supply apparatus
Implementation Method 2
a communication unit that performs wireless communication
Data Source
AI summary
An electronic apparatus includes a communication unit that performs wireless communication, a load unit, a power receiving unit that wirelessly receives power from a power supply apparatus, and a control unit that controls to limit a supply of power to the load unit if the communication unit transmits data to the power supply apparatus.