Dual-Purpose Coil for Wireless Power and Data
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current mobile devices require separate coils and control circuitry for wireless power transfer and data transactions, leading to a need for improved technologies that can efficiently combine these functions.
Innovation Solution
A dual-purpose receiver/transmitter system that includes a coil, a rectifier circuit for wireless power reception, a data transmission circuit, and a controller to manage both functions, allowing for simultaneous wireless power reception and magnetic data transmission using the same coil.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If separate coils and control circuitry are used for wireless power transfer and data transactions, then each function can be performed independently and reliably, but the device complexity and component quantity increase
Solution Approach 1:
The patent combines the wireless power receiving function and magnetic data transmission function into a single coil structure. The coil serves dual purposes: receiving wireless power when activated by the power transmitter, and transmitting magnetic data when activated by the data reader, thereby reducing component quantity while maintaining functional capability
Solution Approach 2:
The single coil is designed to perform multiple functions - it can receive wireless power during charging operations and transmit magnetic data during payment or data exchange operations. The controller manages the coil's operation mode based on the active function, enabling one component to serve multiple purposes
2Device complexity
If a single coil is used for both wireless power reception and magnetic data transmission, then device complexity is reduced, but functional interference and reliability may worsen
Solution Approach 1:
The controller dynamically switches the coil's operating mode based on the active function. When wireless power transfer is needed, the coil operates in power receiving mode; when data transmission is needed, the coil operates in magnetic data transmission mode. This dynamic switching prevents functional interference by ensuring only one function is active at a time
Solution Approach 2:
The controller acts as an intermediary that manages the coil's operation. It receives signals from both the power transmitter and data reader, determines which function should be active, and controls the coil accordingly. This intermediary management ensures reliable operation by preventing conflicting signals from interfering with each 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
Enables efficient and integrated wireless power reception and data transmission, reducing the need for separate components and enhancing the capabilities of mobile devices in transactional and charging applications.
Implementation Method 1
receiving wireless power through a coil
Implementation Method 2
transmitting data magnetically through the coil
Data Source
AI summary
A transmitter/receiver that includes a wireless power receiving mode and a data transmission mode. In the wireless power receiving mode, the transmitter/receiver receives wireless power through and coil and provides power to a load. In data transmission mode, the transmitter/receives drives the coil according to data to transmit data.