An AC-DC Wind Energy Harvesting Circuit with Extended Input-Voltage Range and 95% Tracking Efficiency

Jen Chien Hsieh, Tsung Heng Tsai

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

9 Scopus citations

Abstract

A novel wind energy harvesting (WEH) system using micro-watt turbines is proposed in this paper. To extend the range of wind velocities the harvesting system can process and enhance the settling at the same time, we proposed to use the parasitic inductor of the wind turbines for local excitations. Two-stage power converter is utilized in this system, including a regulator and a maximum power extraction (MPE) implemented in the same chip. The smallest input voltage can be as low as 0.25 V and the settling time is less than 0.2 s with a 1 mF rectified capacitor. This work is fabricated in TSMC 0.35-μm process, achieving 63% end-to-end efficiency. The total active area is 7.68 mm2.

Original languageEnglish
Title of host publication2018 IEEE International Symposium on Circuits and Systems, ISCAS 2018 - Proceedings
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781538648810
DOIs
StatePublished - 26 Apr 2018
Event2018 IEEE International Symposium on Circuits and Systems, ISCAS 2018 - Florence, Italy
Duration: 27 May 201830 May 2018

Publication series

NameProceedings - IEEE International Symposium on Circuits and Systems
Volume2018-May
ISSN (Print)0271-4310

Conference

Conference2018 IEEE International Symposium on Circuits and Systems, ISCAS 2018
Country/TerritoryItaly
CityFlorence
Period27/05/1830/05/18

Keywords

  • Energy harvesting
  • maximum power extraction (MPE)
  • micro turbine

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