A Highly Efficient Switched-Capacitor Voltage Boost Converter with Nano-Watt MPPT Controller for Low-Voltage Energy Harvesting
Summary :
This paper presents a fully integrated voltage boost converter consisting of a charge pump (CP) and maximum power point tracking (MPPT) controller for ultra-low power energy harvesting. The converter is based on a conventional CP circuit and can deliver a wide range of load current by using nMOS and pMOS driver circuits for highly efficient charge transfer operation. The MPPT controller we propose dissipates nano-watt power to extract maximum power regardless of the harvester's power generation conditions and load current. The measurement results demonstrated that the circuit converted a 0.49-V input to a 1.46-V output with 73% power conversion efficiency when the output power was 348µW. The circuit can operate at an extremely low input voltage of 0.21V.
- Publication
- IEICE TRANSACTIONS on Fundamentals Vol.E99-A No.12 pp.2491-2499
- Publication Date
- 2016/12/01
- Publicized
- Online ISSN
- 1745-1337
- DOI
- 10.1587/transfun.E99.A.2491
- Type of Manuscript
- Special Section PAPER (Special Section on VLSI Design and CAD Algorithms)
- Category
Authors
Toshihiro OZAKI
Kobe University
Tetsuya HIROSE
Kobe University
Takahiro NAGAI
Kobe University
Keishi TSUBAKI
Kobe University
Nobutaka KUROKI
Kobe University
Masahiro NUMA
Kobe University
Keyword
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Toshihiro OZAKI, Tetsuya HIROSE, Takahiro NAGAI, Keishi TSUBAKI, Nobutaka KUROKI, Masahiro NUMA, "A Highly Efficient Switched-Capacitor Voltage Boost Converter with Nano-Watt MPPT Controller for Low-Voltage Energy Harvesting" in IEICE TRANSACTIONS on Fundamentals,
vol. E99-A, no. 12, pp. 2491-2499, December 2016, doi: 10.1587/transfun.E99.A.2491.
Abstract: This paper presents a fully integrated voltage boost converter consisting of a charge pump (CP) and maximum power point tracking (MPPT) controller for ultra-low power energy harvesting. The converter is based on a conventional CP circuit and can deliver a wide range of load current by using nMOS and pMOS driver circuits for highly efficient charge transfer operation. The MPPT controller we propose dissipates nano-watt power to extract maximum power regardless of the harvester's power generation conditions and load current. The measurement results demonstrated that the circuit converted a 0.49-V input to a 1.46-V output with 73% power conversion efficiency when the output power was 348µW. The circuit can operate at an extremely low input voltage of 0.21V.
URL: https://global.ieice.org/en_transactions/fundamentals/10.1587/transfun.E99.A.2491/_p
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@ARTICLE{e99-a_12_2491,
author={Toshihiro OZAKI, Tetsuya HIROSE, Takahiro NAGAI, Keishi TSUBAKI, Nobutaka KUROKI, Masahiro NUMA, },
journal={IEICE TRANSACTIONS on Fundamentals},
title={A Highly Efficient Switched-Capacitor Voltage Boost Converter with Nano-Watt MPPT Controller for Low-Voltage Energy Harvesting},
year={2016},
volume={E99-A},
number={12},
pages={2491-2499},
abstract={This paper presents a fully integrated voltage boost converter consisting of a charge pump (CP) and maximum power point tracking (MPPT) controller for ultra-low power energy harvesting. The converter is based on a conventional CP circuit and can deliver a wide range of load current by using nMOS and pMOS driver circuits for highly efficient charge transfer operation. The MPPT controller we propose dissipates nano-watt power to extract maximum power regardless of the harvester's power generation conditions and load current. The measurement results demonstrated that the circuit converted a 0.49-V input to a 1.46-V output with 73% power conversion efficiency when the output power was 348µW. The circuit can operate at an extremely low input voltage of 0.21V.},
keywords={},
doi={10.1587/transfun.E99.A.2491},
ISSN={1745-1337},
month={December},}
Copy
TY - JOUR
TI - A Highly Efficient Switched-Capacitor Voltage Boost Converter with Nano-Watt MPPT Controller for Low-Voltage Energy Harvesting
T2 - IEICE TRANSACTIONS on Fundamentals
SP - 2491
EP - 2499
AU - Toshihiro OZAKI
AU - Tetsuya HIROSE
AU - Takahiro NAGAI
AU - Keishi TSUBAKI
AU - Nobutaka KUROKI
AU - Masahiro NUMA
PY - 2016
DO - 10.1587/transfun.E99.A.2491
JO - IEICE TRANSACTIONS on Fundamentals
SN - 1745-1337
VL - E99-A
IS - 12
JA - IEICE TRANSACTIONS on Fundamentals
Y1 - December 2016
AB - This paper presents a fully integrated voltage boost converter consisting of a charge pump (CP) and maximum power point tracking (MPPT) controller for ultra-low power energy harvesting. The converter is based on a conventional CP circuit and can deliver a wide range of load current by using nMOS and pMOS driver circuits for highly efficient charge transfer operation. The MPPT controller we propose dissipates nano-watt power to extract maximum power regardless of the harvester's power generation conditions and load current. The measurement results demonstrated that the circuit converted a 0.49-V input to a 1.46-V output with 73% power conversion efficiency when the output power was 348µW. The circuit can operate at an extremely low input voltage of 0.21V.
ER -
English
