Contactless Inductive Power and Data Transfer

For use in E-Textiles

Master thesis (2022)

Authors

W.P. Lindeman Electrical Engineering, Mathematics and Computer Science

Contributors

A.S.M. Steijlen Electronic Instrumentation - EEMCS (supervisor 1)
A. Bossche Electronic Instrumentation - EEMCS (supervisor 1)
P.J. French Bio-Electronics - EEMCS (supervisor 2)
J. Dong DC systems, Energy conversion & Storage - EEMCS (supervisor 2)
Faculty
Electrical Engineering, Mathematics and Computer Science
Copyright: © 2022 Pim Lindeman
Resonant coupling Inductive coupling WPT E-Textile Inductive data transfer
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Published Date

23-09-2022

Language

English

Reuse Rights

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Faculty

Electrical Engineering, Mathematics and Computer Science

Abstract

Distributing power and data around a garment is a common problem in sensor enabled e-textiles, as connecting separate electronic subsystems together using connectors and wires has proven to be unreliable and cumbersome. In this work a solution is presented that will eliminate the connectors by using two pairs of short-range wireless inductive links. The proposed system is able carry power from one node to the next, while at the same time facilitating data transfer between the nodes. In this work the double inductive link is analysed, and a novel compensation topology is presented. A modified class-E amplifier is proposed to generate a carrier signal, improving the system settling time. Using a placeholder data protocol the system is able to transmit 62mW of regulated power to an external load at a total efficiency of 7.3%, while simultaneously transmitting data at a rate of 8.5kbit/s. Without data transmission it is able to deliver 185mW of DC power at 6.09V unregulated, at an efficiency of 23%. The system is also shown to be capable of handling a maximum bitstream of 240kbit/s.

Files

Thesis_FINAL.pdf
(.pdf | 7.32 Mb)