An Overview of Simultaneous Wireless Power and Information Transfer Via Near-Field Magnetic Links (Part Ⅰ): Digital Modulation

被引：0
|
作者：
Li J. [1 ]
Zhang B. [1 ]
Rong C. [1 ]
机构：
[1] School of Electric Power, South China University of Technology, Guangzhou
来源：
Diangong Jishu Xuebao/Transactions of China Electrotechnical Society | 2022年 / 37卷 / 14期
关键词：
digital modulation; near-field magnetic communication; Simultaneous wireless power and information transfer; wireless power transfer;
D O I：
10.19595/j.cnki.1000-6753.tces.211472
中图分类号：
学科分类号：
摘要：
With the development of near-field magnetic coupling link, wireless power transmission (WPT) has gained great popularity owing to its characteristics of reliability, convenience and safety. WPT reveals unique technical advantages in special applications that are inconvenient to be supplied by wired power transmission. In essence, the electromagnetic field can be served as the energy carrier as well as the information medium, which means the near-field magnetic coupling WPT can simultaneously transmit power and information (SWPIT) without additional radio frequency links. SWPIT systems apply various digital modulation schemes to improve the telemetry rate and stability, which can reduce the crosstalk between information and power flow. This review has elucidated the development of the digital modulation for near-field magnetic coupling SWPIT systems, including data modulation and circuit implementation, and finally summarized the advantages and disadvantages of different modulation schemes for corresponding applications. © 2022 Chinese Machine Press. All rights reserved.
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页码：3487 / 3501
页数：14
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