A 100-pA Adaptive-FOCV MPPT Circuit with >99.6% Tracking Efficiency for Indoor Light Energy Harvesting

Peng Chang Huang, Tai Haur Kuo

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

To harvest indoor light energy via photovoltaics (PVs), this paper proposes an adaptive-fractional-open-circuit-voltage (AFOCV) maximum power point tracking (MPPT) circuit to automatically adjust the FOCV fraction under different illuminances for amorphous PV modules. Designed in 0.5-μm CMOS process, the AFOCV circuit consumes an ultra-low average current of 100 pA. Over 100-1000 lux illuminance, the measured MPPT efficiency with AFOCV is >99.6%, which outperforms that of other state-of-the-art energy harvesting (EH) ICs with conventional FOCV methods.

Original languageEnglish
Title of host publicationProceedings - 2019 IEEE Asian Solid-State Circuits Conference, A-SSCC 2019
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages185-188
Number of pages4
ISBN (Electronic)9781728151069
DOIs
Publication statusPublished - 2019 Nov
Event15th IEEE Asian Solid-State Circuits Conference, A-SSCC 2019 - Macao, China
Duration: 2019 Nov 42019 Nov 6

Publication series

NameProceedings - 2019 IEEE Asian Solid-State Circuits Conference, A-SSCC 2019

Conference

Conference15th IEEE Asian Solid-State Circuits Conference, A-SSCC 2019
CountryChina
CityMacao
Period19-11-0419-11-06

All Science Journal Classification (ASJC) codes

  • Computer Networks and Communications
  • Hardware and Architecture
  • Electrical and Electronic Engineering
  • Safety, Risk, Reliability and Quality
  • Electronic, Optical and Magnetic Materials

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