Paper Info
Title
Wireless Power Transfer to Randomly Distributed Implants via Homogeneous Magnetic Fields
Abstract
Complex gesture recognition and multi-degree-of-freedom prostheses necessitate the ability to chronically record electromyography (EMG) signals from multiple physically distant muscles. This paper presents an inductive wireless power transfer (WPT) system for a distributed EMG recording platform that can power multiple implants via a homogeneous magnetic field. The proposed coil array is designed to optimally power randomly distributed implants across a large area on the forearm. Efficiency is maximized by carefully optimizing the geometry of the hexagonal sub-coil of the array and the frequency of the WPT, while field homogeneity is maximized by stacking three horizontally offset layers of coils in order to minimize magnetic field variations. The array achieves best-case, worst-case, and average efficiencies of 70.3%, 65.5%, and 68.5%, respectively, enabling efficient power delivery to multiple randomly distributed implants.
Year
DOI
Venue
2019
10.1109/BIOCAS.2019.8918735
2019 IEEE Biomedical Circuits and Systems Conference (BioCAS)
Keywords
Field
DocType
Wireless power transfer,inductive power transfer,implantable medical devices
Magnetic field,Wireless power transfer,Homogeneous,Computer science,Hexagonal crystal system,Gesture recognition,Electronic engineering,Acoustics,Offset (computer science),Stacking,Homogeneous magnetic field
Conference
ISSN
ISBN
Citations 
2163-4025
978-1-5090-0618-2
0
PageRank 
References 
Authors
0.34
0
2
Name
Order
Citations
PageRank
George Alexandrov100.34
Jan M. Rabaey247961049.96