A Simultaneous Wireless Power and Full-Duplex Data Transfer System Using a Mix of Inductive and Capacitive Couplings

IF 4 2区工程技术 Q2 ENGINEERING, ELECTRICAL & ELECTRONIC

IEEE Transactions on Circuits and Systems II: Express Briefs Pub Date : 2024-10-18 DOI:10.1109/TCSII.2024.3483575

Guangyu Yan;Wei Han;Chang Liu;Bowang Zhang;Meixuan Li

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Abstract

This brief presents a novel simultaneous wireless power and data transfer (SWPDT) system that combines inductive and capacitive couplings, featuring full-duplex communication with high data transfer rates. Specifically, the power and forward data are transferred through inductive coupling respectively by means of the DD coils and Q coils, while the backward data is transferred through capacitive coupling by means of the stray capacitances. Because of the decoupling characteristic of the DDQ coil structure and the use of two coupling types, the interferences among the power, forward data, and backward data are relatively low. By integrating the two coupling types, a comprehensive circuit model of full-duplex data transfer is established and analyzed. Finally, a 145-W prototype is actualized with 91.4% power transfer efficiency. The forward and backward data transfer rates are 150 kbps and 600 kbps, respectively, demonstrating the feasibility of the proposed system.

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使用电感和电容耦合混合的同时无线供电和全双工数据传输系统

本文介绍了一种新型的同步无线电源和数据传输（SWPDT）系统，该系统结合了电感和电容耦合，具有高数据传输速率的全双工通信。其中，功率和正向数据分别通过电感耦合通过DD线圈和Q线圈传输，反向数据通过电容耦合通过杂散电容传输。由于DDQ线圈结构的去耦特性和两种耦合方式的使用，使得功率、前向数据和后向数据之间的干扰相对较低。通过对两种耦合方式的集成，建立并分析了全双工数据传输的综合电路模型。最后，实现了145 w的样机，功率传输效率为91.4%。向前传输速率为150kbps，向后传输速率为600kbps，验证了系统的可行性。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

IEEE Transactions on Circuits and Systems II: Express Briefs 工程技术-工程：电子与电气

CiteScore

7.90

自引率

20.50%

发文量

883

审稿时长

3.0 months

期刊介绍： TCAS II publishes brief papers in the field specified by the theory, analysis, design, and practical implementations of circuits, and the application of circuit techniques to systems and to signal processing. Included is the whole spectrum from basic scientific theory to industrial applications. The field of interest covered includes: Circuits: Analog, Digital and Mixed Signal Circuits and Systems Nonlinear Circuits and Systems, Integrated Sensors, MEMS and Systems on Chip, Nanoscale Circuits and Systems, Optoelectronic Circuits and Systems, Power Electronics and Systems Software for Analog-and-Logic Circuits and Systems Control aspects of Circuits and Systems.