Batteryless 275mV Startup Single-Cell Photovoltaic Energy Harvesting System for Alleviating Shading Effect

Chao Jen Huang, Yi Ping Su, Ke-Horng Chen, Li Ren Huang, Fang Chih Chu, Yuan Hua Chu, Chin Long Wey

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

3 Scopus citations

Abstract

without any batteries, a low input voltage converter is presented for a single-cell (SC) photovoltaic (PV) energy harvesting to alleviate the energy degradation due to shading effect. The proposed low voltage startup (LVS) circuit with low input voltage of 275 mV and less than 840 ms startup time achieves high voltage conversion ratio to supply a high accuracy bandgap reference. Experimental results show the maximum power throughput is up to 6 mW and the quiescent power is less than 650 mu W with integrated two buck-boost converters and two boost converters. The peak efficiency of the boost converter can be up to 75.8% for ultra-low voltage hearing aid systems.
Original languageEnglish
Title of host publication9th IEEE Asian Solid-State Circuits Conference (A-SSCC)
PublisherIEEE
Pages265-268
Number of pages4
ISBN (Print)9781479902781
DOIs
StatePublished - 1 Dec 2013
Event2013 9th IEEE Asian Solid-State Circuits Conference, A-SSCC 2013 - Singapore, Singapore
Duration: 11 Nov 201313 Nov 2013

Publication series

NameProceedings of the 2013 IEEE Asian Solid-State Circuits Conference, A-SSCC 2013

Conference

Conference2013 9th IEEE Asian Solid-State Circuits Conference, A-SSCC 2013
CountrySingapore
CitySingapore
Period11/11/1313/11/13

Keywords

  • Buck-boost (BB) converter
  • Low voltage startup (LVS)
  • Photovoltaic (PV) energy harvesting
  • Single-cell (SC) PV

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