125 kHz wireless energy and 25 kbps data transfer for wearable device

D. Gao, R. Zhai, Peter Baltus, Huib Visser, Hao Gao

Research output: Chapter in Book/Report/Conference proceedingChapterAcademicpeer-review

Abstract

This paper presents a 125 kHz wireless energy and 25 kbps data transfer system for a wearable device. In this system, the wireless transfer link is through a coupled transformer. The model of a coupled transformer is discussed, and the mismatch between measured and simulated coupling value is within 3 %. For a wearable scenario, the coupled transformer is designed to fit the bending degree of the wrist. The designed transformer achieves a best coupling factor of 0.42 with ±15mm displacement tolerance. The wireless data link can support 25 kbps data transfer in ASK modulation, and the system wireless power transfer link achieves a 40% efficiency in the optimized position, which fits the application requirement.
Original languageEnglish
Title of host publication2019 IEEE Wireless Power Transfer Conference, WPTC 2019
Place of PublicationPiscataway
PublisherInstitute of Electrical and Electronics Engineers
Pages216-219
Number of pages4
ISBN (Electronic)9781728107059
ISBN (Print)978-1-7281-0705-9
DOIs
Publication statusPublished - 6 Apr 2020
EventIEEE MTT-S Wireless Power Transfer Conference (WPTC2019) - London, United Kingdom
Duration: 17 Jun 201921 Jun 2019

Publication series

Name2019 IEEE Wireless Power Transfer Conference, WPTC 2019

Conference

ConferenceIEEE MTT-S Wireless Power Transfer Conference (WPTC2019)
Abbreviated titleWPTC2019
CountryUnited Kingdom
CityLondon
Period17/06/1921/06/19

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  • Cite this

    Gao, D., Zhai, R., Baltus, P., Visser, H., & Gao, H. (2020). 125 kHz wireless energy and 25 kbps data transfer for wearable device. In 2019 IEEE Wireless Power Transfer Conference, WPTC 2019 (pp. 216-219). [9055511] (2019 IEEE Wireless Power Transfer Conference, WPTC 2019). Piscataway: Institute of Electrical and Electronics Engineers. https://doi.org/10.1109/WPTC45513.2019.9055511