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 language | English |
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| Title of host publication | 2019 IEEE Wireless Power Transfer Conference, WPTC 2019 |
| Place of Publication | Piscataway |
| Publisher | Institute of Electrical and Electronics Engineers |
| Pages | 216-219 |
| Number of pages | 4 |
| ISBN (Electronic) | 9781728107059 |
| ISBN (Print) | 978-1-7281-0705-9 |
| DOIs | |
| Publication status | Published - 6 Apr 2020 |
| Event | 2019 IEEE Wireless Power Transfer Conference, WPTC 2019 - London, United Kingdom Duration: 18 Jun 2019 → 21 Jun 2019 |
Conference
| Conference | 2019 IEEE Wireless Power Transfer Conference, WPTC 2019 |
|---|---|
| Abbreviated title | WPTC2019 |
| Country/Territory | United Kingdom |
| City | London |
| Period | 18/06/19 → 21/06/19 |