Open AccessWireless power transfer to a micro implant device from outside of human body
Author(s) -
Keita Yamaguchi,
Kazuma Onishi,
Kazuhiro Iida
Publication year - 2019
Publication title -
international journal of electrical and computer engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.277
H-Index - 22
ISSN - 2088-8708
DOI - 10.11591/ijece.v9i3.pp1541-1545
Subject(s) - wireless power transfer , power (physics) , wireless , maximum power transfer theorem , electrical engineering , equivalent circuit , computer science , implant , load resistance , topology (electrical circuits) , physics , telecommunications , engineering , voltage , medicine , surgery , quantum mechanics
This paper states wireless power transfer (WPT) from an AC power supply to a micro implant device in human body. At first, an equivalent circuit of WPT which contains biomedical tissue is constructed with an AC power supply, parasitic components, load resistance, and inductances. Then a state equation which stands for the behavior of circuit is found, and the expression of efficiency is derived as the ratio of the power of power supply and load. Finally an experiment is conducted based on the theoretical calculation, and the error between experimental and calculated result is computed and examined.