Lossless Current Sensing Approach for Backpack Energy Harvester

W. W. Yen, Paul C.P. Chao

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

Abstract

The backpack energy harvester not only harvests energy to charge portable device but also reduces the risk of orthopaedic and muscular injury. In this paper, a lossless current sensing approach for backpack energy harvester is present in swop fly-back converter. The swop fly-back converter is reconstructed by the input capacitor and transformer in fly-back converter. It is controlled with constant on time algorithm and is switching in boundary mode strategy. The measured digital data is transmitted to smart phone by Bluetooth. And then, as a portable base station, the smartphone sent to the cloud. In the previous test, the linearity between time to digital converter output and output current is good as the reason that the correlation coefficients is 0.9772. The average output current is 0.1686 A for striding and 0.4242 A for jogging. The maximum output current is 0.9972 A for striding and 2.16 A for jogging.

Original languageEnglish
Title of host publicationProceedings - IECON 2020
Subtitle of host publication46th Annual Conference of the IEEE Industrial Electronics Society
PublisherIEEE Computer Society
Pages1861-1865
Number of pages5
ISBN (Electronic)9781728154145
DOIs
StatePublished - 18 Oct 2020
Event46th Annual Conference of the IEEE Industrial Electronics Society, IECON 2020 - Virtual, Singapore, Singapore
Duration: 19 Oct 202021 Oct 2020

Publication series

NameIECON Proceedings (Industrial Electronics Conference)
Volume2020-October

Conference

Conference46th Annual Conference of the IEEE Industrial Electronics Society, IECON 2020
CountrySingapore
CityVirtual, Singapore
Period19/10/2021/10/20

Keywords

  • backpack
  • charger
  • current sensing
  • energy harvester
  • regulator
  • vibration

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