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

9 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

Fingerprint

Mobile devices
Conversion efficiency
Tuning
Touch screens
Secondary batteries
Energy harvesting

All Science Journal Classification (ASJC) codes

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

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
Liu, Wen Chuen ; Wang, Yi Hsiang ; Kuo, Tai-Haur. / 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. 2013 IEEE International Solid-State Circuits Conference, ISSCC 2013 - Digest of Technical Papers. 2013. pp. 70-71 (Digest of Technical Papers - IEEE International Solid-State Circuits Conference).
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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.",
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Liu, WC, Wang, YH & 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., 6487641, Digest of Technical Papers - IEEE International Solid-State Circuits Conference, vol. 56, pp. 70-71, 2013 60th IEEE International Solid-State Circuits Conference, ISSCC 2013, San Francisco, CA, United States, 13-02-17. https://doi.org/10.1109/ISSCC.2013.6487641

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. / Liu, Wen Chuen; Wang, Yi Hsiang; Kuo, Tai-Haur.

2013 IEEE International Solid-State Circuits Conference, ISSCC 2013 - Digest of Technical Papers. 2013. p. 70-71 6487641 (Digest of Technical Papers - IEEE International Solid-State Circuits Conference; Vol. 56).

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

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Liu WC, Wang YH, Kuo T-H. 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. 2013. p. 70-71. 6487641. (Digest of Technical Papers - IEEE International Solid-State Circuits Conference). https://doi.org/10.1109/ISSCC.2013.6487641