Secondary-side de-tuning to enable wide-range Inductive Power Transfer for a wrist worn sensor

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Abstract

Powering body worn electronics via inductive power transfer is made more challenging by the poorly constrained relative position of the coils and the consequential wide range of magnetic coupling between them. Somewhat counter intuitively for systems that must operate with coupling factors varying over an order of magnitude it is the design of the receiver side circuits during periods of high coupling that can be most problematic. In this paper a novel low-cost, low power receiver circuit is presented that can automatically compensate for higher coupling by altering the secondary tuning.

Original languageEnglish
Article number012103
Number of pages5
JournalJournal of Physics: Conference Series
Volume1407
DOIs
Publication statusPublished - 4 Dec 2019
Event18th International Conference on Micro and Nanotechnology for Power Generation and Energy Conversion Applications, PowerMEMS 2018 - Daytona Beach, United States
Duration: 4 Dec 20187 Dec 2018

Bibliographical note

Provisional acceptance date added based on publication date

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