A Bidirectional Simultaneous Wireless Power and Data Transfer System with Non-Contact Slip Ring

A non-contact slip ring is proposed in this paper. The bidirectional simultaneous wireless power and data transfer (BD-SWPDT) technology is utilized to transfer power and data bidirectionally. A bidirectional constant-voltage LC hybrid compensation topology is proposed, which utilizes the LC series...

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Veröffentlicht in:Electronics (Basel) 2024-10, Vol.13 (20), p.3974
Hauptverfasser: Fan, Yuanshuang, Chen, Qiurui, Wu, Sihan, Xiao, Jing, Wang, Zhihui
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creator Fan, Yuanshuang
Chen, Qiurui
Wu, Sihan
Xiao, Jing
Wang, Zhihui
description A non-contact slip ring is proposed in this paper. The bidirectional simultaneous wireless power and data transfer (BD-SWPDT) technology is utilized to transfer power and data bidirectionally. A bidirectional constant-voltage LC hybrid compensation topology is proposed, which utilizes the LC series parallel structure to have different equivalent models at different frequencies. By using different operating frequencies for forward and reverse power transfer, the system’s forward and reverse transfer can be equivalent to different constant-voltage output compensation topologies. The resonant parameters of the system are designed to achieve consistent voltage gain for forward and reverse power transfer. And based on this topology, a data carrier injection method is designed to achieve high Signal Noise Ratio (SNR) simultaneous data transfer. To improve the flexibility of non-contact slip ring installation, a caliper-type coupling structure is proposed. Finally, the feasibility of the proposed method is verified through experiments, achieving a forward and reverse output power of 200 W and half duplex communication with a data rate of 19.2 kbps.
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source MDPI - Multidisciplinary Digital Publishing Institute; Elektronische Zeitschriftenbibliothek - Frei zugängliche E-Journals
subjects Carrier injection
Compensation
Data transfer (computers)
Equivalence
Flexibility
Medical equipment
Power transfer
Satellites
Sensors
Signal to noise ratio
Slip rings
Topology
Voltage gain
title A Bidirectional Simultaneous Wireless Power and Data Transfer System with Non-Contact Slip Ring
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