Wireless Power Transfer Using A Halbach Array and A Magnetically Plucked Piezoelectric Transducer for Medical Implants

George Gibson*, Hailing Fu*

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

1 Citation (Scopus)

Abstract

A wireless magnetic power transfer methodology for self-powered medical implants is proposed using a piezoelectric receiver along with the implant and a near-field magnetic transmitter as a wearable device. The transmitter includes a rotating magnetic Halbach array driven by a motor or human motion, capable of increasing the transmission distance to an implanted receiver by offering stronger magnetic coupling compared to a normal magnetic array. Transduction is achieved by utilising low frequency rotating magnetic fields to periodically excite a cantilevered piezoelectric beam (receiver). Simulations are carried out to examine the Halbach array performance. The established wireless power link delivers sufficient power (~0.28 mW) over relatively large transmission distances (18 mm) compared to existing techniques, demonstrating its potential for further miniaturization and self-sustained biosensing applications.

Original languageEnglish
Title of host publication2022 21st International Conference on Micro and Nanotechnology for Power Generation and Energy Conversion Applications, PowerMEMS 2022
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages50-53
Number of pages4
ISBN (Electronic)9781665493062
DOIs
Publication statusPublished - 2022
Externally publishedYes
Event21st International Conference on Micro and Nanotechnology for Power Generation and Energy Conversion Applications, PowerMEMS 2022 - Salt Lake City, United States
Duration: 12 Dec 202215 Dec 2022

Publication series

Name2022 21st International Conference on Micro and Nanotechnology for Power Generation and Energy Conversion Applications, PowerMEMS 2022

Conference

Conference21st International Conference on Micro and Nanotechnology for Power Generation and Energy Conversion Applications, PowerMEMS 2022
Country/TerritoryUnited States
CitySalt Lake City
Period12/12/2215/12/22

Keywords

  • Halbach array
  • magnetic plucking
  • medical implants
  • piezoelectric
  • wireless power transfer

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