Thermoelectric energy harvesting with 1mV low input voltage and 390nA quiescent current for 99.6% maximum power point tracking

Chao Jen Huang*, Wei Chung Chen, Chia Lung Ni, Ke-Horng Chen, Chien Chun Lu, Yuan Hua Chu, Ming Ching Kuo

*Corresponding author for this work

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

3 Scopus citations

Abstract

In this paper, the proposed voltage trend detection (VTD) circuit effectively achieves high tracking efficiency in mixed-signal maximum power point tracking (MPPT) for the thermoelectric energy harvesting. The input power ranges from 42nW to 1.67mW and the input voltage can be lower to 1mV with a low quiescent current of 390nA when circuit is designed to operate in weak-inversion region. Consequently, the exponential relationship of the characteristic in the weak-inversion region can ensure that the tracking efficiency is higher than 99.6% and the tracking response time is less than 34ms.

Original languageEnglish
Title of host publication2012 Proceedings of the European Solid State Circuits Conference, ESSCIRC 2012
Pages105-108
Number of pages4
DOIs
StatePublished - 14 Dec 2012
Event38th European Solid State Circuits Conference, ESSCIRC 2012 - Bordeaux, France
Duration: 17 Sep 201221 Sep 2012

Publication series

NameEuropean Solid-State Circuits Conference
ISSN (Print)1930-8833

Conference

Conference38th European Solid State Circuits Conference, ESSCIRC 2012
CountryFrance
CityBordeaux
Period17/09/1221/09/12

Keywords

  • maximum power point tracking (MPPT)
  • thermoelectric energy harvesting
  • thermoelectric generator (TEG)

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