A PV-assisted 10-mV Startup Boost Converter for Thermoelectric Energy Harvesting

Yansong Liang, Ruizhi Wang, Zhongsheng Chen, Sijun Du*

*Corresponding author for this work

Research output: Chapter in Book/Conference proceedings/Edited volumeConference contributionScientificpeer-review

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Abstract

This paper presents a boost converter for thermo-electric energy harvesting with photovoltaic (PV)-assisted startup. The converter employs a new two-phase startup architecture and the PV cell is used in the first phase to provide an initial high voltage for startup. This high voltage drives the boost converter to charge a startup capacitor, which powers the main control block to continue self-startup in phase 2. The proposed system is designed and simulated in a $0.18\mu{\mathrm{m}}$ BCD process. The simulations show successful cold-start from 10 mV thermoelectric voltage. In addition, maximum power point tracking and zero current switching techniques are adopted in the system to achieve 91% peak efficiency. The proposed system can finish the cold-start within 250 ms.
Original languageEnglish
Title of host publicationProceedings of the 2022 IEEE International Symposium on Circuits and Systems (ISCAS)
Place of PublicationDanvers
PublisherIEEE
Pages644-648
Number of pages5
ISBN (Electronic)978-1-6654-8485-5
ISBN (Print)978-1-6654-8486-2
DOIs
Publication statusPublished - 2022
Event2022 IEEE International Symposium on Circuits and Systems (ISCAS) - Austin, United States
Duration: 27 May 20221 Jun 2022

Conference

Conference2022 IEEE International Symposium on Circuits and Systems (ISCAS)
Country/TerritoryUnited States
CityAustin
Period27/05/221/06/22

Bibliographical note

Green Open Access added to TU Delft Institutional Repository 'You share, we take care!' - Taverne project https://www.openaccess.nl/en/you-share-we-take-care

Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public.

Keywords

  • thermoelectric energy harvesting
  • startup
  • boost converter

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