An adaptive load-line tuning IC for photovoltaic module integrated mobile device with 470μs transient time, over 99% steady-state accuracy and 94% power conversion efficiency

Wen Chuen Liu, Yi Hsiang Wang, Tai Haur Kuo

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

12 Citations (Scopus)

Abstract

Many modern mobile devices have a touchscreen and are powered by a rechargeable battery. To extend battery usage time before recharge, harvesting energy from ambient light provides an elegant solution if the photovoltaic (PV) modules can be integrated with mobile devices [1]. However, mobile devices are frequently finger operated and/or in motion, so light-harvesting should consider fast-changing shading and partial shading problems. Previous IC works [2-4] have reported on the implementation of maximum power point tracking (MPPT) for light-harvesting, none of them have concurrently addressed these two problems. Although one of these works [3] considered the mobile device issue, it targets high MPPT steady-state accuracy without considering fast-changing shading problem. Hence, there is still room for improvement with respect to short MPPT transient time to harvest more energy for extending battery usage time.

Original languageEnglish
Title of host publication2013 IEEE International Solid-State Circuits Conference, ISSCC 2013 - Digest of Technical Papers
Pages70-71
Number of pages2
DOIs
Publication statusPublished - 2013 Apr 29
Event2013 60th IEEE International Solid-State Circuits Conference, ISSCC 2013 - San Francisco, CA, United States
Duration: 2013 Feb 172013 Feb 21

Publication series

NameDigest of Technical Papers - IEEE International Solid-State Circuits Conference
Volume56
ISSN (Print)0193-6530

Other

Other2013 60th IEEE International Solid-State Circuits Conference, ISSCC 2013
CountryUnited States
CitySan Francisco, CA
Period13-02-1713-02-21

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Electrical and Electronic Engineering

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  • Cite this

    Liu, W. C., Wang, Y. H., & Kuo, T. H. (2013). An adaptive load-line tuning IC for photovoltaic module integrated mobile device with 470μs transient time, over 99% steady-state accuracy and 94% power conversion efficiency. In 2013 IEEE International Solid-State Circuits Conference, ISSCC 2013 - Digest of Technical Papers (pp. 70-71). [6487641] (Digest of Technical Papers - IEEE International Solid-State Circuits Conference; Vol. 56). https://doi.org/10.1109/ISSCC.2013.6487641