Low-voltage indoor energy harvesting using photovoltaic cell

Hong Yi Huang, Shao Zu Yen, Jhen Hong Chen, Hao-Chiao Hong, Kuo Hsing Cheng

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

4 Scopus citations

Abstract

This work presents a low-voltage indoor energy harvesting using photovoltaic cell. The system doesn't use a dc-dc converter to boost the output voltage so that large external inductors and large capacitors are eliminated. A rechargeable battery is connected to the output for storing the energy. No other external components are needed in the system. A test chip is implemented using a 0.18um CMOS process with a chip area of 0.85×0.85mm2 and a power consumption of 272uW. This solar cell provides a voltage of 0.4V∼0.55V to the test chip at a minimum illumination of 61∼625 Lux. A maximum efficiency of 54% can be obtained when the supply voltage is 0.5 V.

Original languageEnglish
Title of host publicationFormal Proceedings of the 2016 IEEE 19th International Symposium on Design and Diagnostics of Electronic Circuits and Systems, DDECS 2016
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781509024674
DOIs
StatePublished - 31 May 2016
Event19th IEEE International Symposium on Design and Diagnostics of Electronic Circuits and Systems, DDECS 2016 - Kosice, Slovakia
Duration: 20 Apr 201622 Apr 2016

Publication series

NameFormal Proceedings of the 2016 IEEE 19th International Symposium on Design and Diagnostics of Electronic Circuits and Systems, DDECS 2016

Conference

Conference19th IEEE International Symposium on Design and Diagnostics of Electronic Circuits and Systems, DDECS 2016
CountrySlovakia
CityKosice
Period20/04/1622/04/16

Keywords

  • Battery charging
  • Indoor energy harvesting system
  • indoor solar cell
  • photovoltaic cell

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