Wireless power and data transfer via a common inductive link using frequency division multiplexing


For wireless power transfer (WPT) systems, communication between the primary side and the pickup side is a challenge because of the large air gap and magnetic interferences. A novel method, which integrates bidirectional data communication into a high-power WPT system, is proposed in this paper. The power and data transfer share the same inductive link between coreless coils. Power/data frequency division multiplexing technique is applied, and the power and data are transmitted by employing different frequency carriers and controlled independently. The circuit model of the multiband system is provided to analyze the transmission gain of the communication channel, as well as the power delivery performance. The crosstalk interference between two carriers is discussed. In addition, the signal-to-noise ratios of the channels are also estimated, which gives a guideline for the design of mod/demod circuits. Finally, a 500-W WPT prototype has been built to demonstrate the effectiveness of the proposed WPT system.

Publication DOI: https://doi.org/10.1109/TIE.2015.2453934
Additional Information: © 2015 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.
Uncontrolled Keywords: capacitors,coils,data communication,inductors,integrated circuit modeling,inverters,wireless communication,Electrical and Electronic Engineering,Control and Systems Engineering,Computer Science Applications
Publication ISSN: 1557-9948
Last Modified: 20 May 2024 07:14
Date Deposited: 16 Dec 2015 15:30
Full Text Link: http://ieeexplo ... rnumber=7153532
Related URLs: http://www.scop ... tnerID=8YFLogxK (Scopus URL)
PURE Output Type: Article
Published Date: 2015-12
Published Online Date: 2015-07-09
Authors: Wu, Jiande
Zhao, Chongwen
Lin, Zhengyu (ORCID Profile 0000-0001-7733-2431)
Du, Jin
Hu, Yihua
He, Xiangning



Version: Accepted Version

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