Indoor energy harvesting using photovoltaic cell for battery recharging

Hong Yi Huang, Chinet Otic Mocorro, Julyver Pinaso, Kuo Hsing Cheng

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

10 Scopus citations

Abstract

The recent development in modern electronic indoor microsystems such as monitoring and remote sensing equipment, tiny volume radio transceivers and ultra-low power devices requires a reliable uninterruptible regulated power supply. Due to the limited energy capacity and performance inefficiency of common ultra-capacitors, demand for rechargeable batteries has grown increasingly. This paper presents an indoor energy harvesting system which employs a self-Vth-cancellation differential rectifier instead of dc to dc converter to minimize area and power consumption. The regulated output voltage recharges the battery and supplies voltage to the load. A 500 mV photovoltaic cell provides energy for the system while operating under a room lighting illumination of at least 2338 lux. The circuit occupies a chip area of 0.962×0.935 mm2 and fabricated using 0.18μm 1P6M process with a power dissipation of 1.25mW when delivering a load current of 395 μA at 1.3 V.

Original languageEnglish
Title of host publicationProceedings of the 2013 IEEE 16th International Symposium on Design and Diagnostics of Electronic Circuits and Systems, DDECS 2013
PublisherIEEE Computer Society
Pages224-227
Number of pages4
ISBN (Print)9781467361361
DOIs
StatePublished - 2013
Event2013 IEEE 16th International Symposium on Design and Diagnostics of Electronic Circuits and Systems, DDECS 2013 - Karlovy Vary, Czech Republic
Duration: 8 Apr 201310 Apr 2013

Publication series

NameProceedings of the 2013 IEEE 16th International Symposium on Design and Diagnostics of Electronic Circuits and Systems, DDECS 2013

Conference

Conference2013 IEEE 16th International Symposium on Design and Diagnostics of Electronic Circuits and Systems, DDECS 2013
Country/TerritoryCzech Republic
CityKarlovy Vary
Period8/04/1310/04/13

Keywords

  • differential rectifier
  • indoor energy harvesting
  • photovoltaic cell
  • rechargeable battery

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