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Design of Switched-Capacitor Voltage Boost Converter for Low-Voltage and Low-Power Energy Harvesting Systems
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Summary :
This paper discusses and elaborates an analytical model of a multi-stage switched-capacitor (SC) voltage boost converter (VBC) for low-voltage and low-power energy harvesting systems, because the output impedance of the VBC, which is derived from the analytical model, plays an important role in the VBC's performance. In our proposed method, we focus on currents flowing into input and output terminals of each stage and model the VBCs using switching frequency f, charge transfer capacitance CF, load capacitance CL, and process dependent parasitic capacitance's parameter k. A comparison between simulated and calculated results showed that our model can estimate the output impedance of the VBC accurately. Our model is useful for comparing the relative merits of different types of multi-stage SC VBCs. Moreover, we demonstrate the performance of a prototype SC VBC and energy harvesting system using the SC VBC to show the effectiveness and feasibility of our proposed design guideline.
- Publication
- IEICE TRANSACTIONS on Electronics Vol.E103-C No.10 pp.446-457
- Publication Date
- 2020/10/01
- Publicized
- 2020/05/20
- Online ISSN
- 1745-1353
- DOI
- 10.1587/transele.2019CTI0002
- Type of Manuscript
- Special Section INVITED PAPER (Special Section on Analog Circuits and Their Application Technologies)
- Category
- Electronic Circuits
Authors
Tetsuya HIROSE
Osaka University
Yuichiro NAKAZAWA
Ricoh Electronic Devices Co., Ltd.
Keyword
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Tetsuya HIROSE, Yuichiro NAKAZAWA, "Design of Switched-Capacitor Voltage Boost Converter for Low-Voltage and Low-Power Energy Harvesting Systems" in IEICE TRANSACTIONS on Electronics,
vol. E103-C, no. 10, pp. 446-457, October 2020, doi: 10.1587/transele.2019CTI0002.
Abstract: This paper discusses and elaborates an analytical model of a multi-stage switched-capacitor (SC) voltage boost converter (VBC) for low-voltage and low-power energy harvesting systems, because the output impedance of the VBC, which is derived from the analytical model, plays an important role in the VBC's performance. In our proposed method, we focus on currents flowing into input and output terminals of each stage and model the VBCs using switching frequency f, charge transfer capacitance CF, load capacitance CL, and process dependent parasitic capacitance's parameter k. A comparison between simulated and calculated results showed that our model can estimate the output impedance of the VBC accurately. Our model is useful for comparing the relative merits of different types of multi-stage SC VBCs. Moreover, we demonstrate the performance of a prototype SC VBC and energy harvesting system using the SC VBC to show the effectiveness and feasibility of our proposed design guideline.
URL: https://global.ieice.org/en_transactions/electronics/10.1587/transele.2019CTI0002/_p
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@ARTICLE{e103-c_10_446,
author={Tetsuya HIROSE, Yuichiro NAKAZAWA, },
journal={IEICE TRANSACTIONS on Electronics},
title={Design of Switched-Capacitor Voltage Boost Converter for Low-Voltage and Low-Power Energy Harvesting Systems},
year={2020},
volume={E103-C},
number={10},
pages={446-457},
abstract={This paper discusses and elaborates an analytical model of a multi-stage switched-capacitor (SC) voltage boost converter (VBC) for low-voltage and low-power energy harvesting systems, because the output impedance of the VBC, which is derived from the analytical model, plays an important role in the VBC's performance. In our proposed method, we focus on currents flowing into input and output terminals of each stage and model the VBCs using switching frequency f, charge transfer capacitance CF, load capacitance CL, and process dependent parasitic capacitance's parameter k. A comparison between simulated and calculated results showed that our model can estimate the output impedance of the VBC accurately. Our model is useful for comparing the relative merits of different types of multi-stage SC VBCs. Moreover, we demonstrate the performance of a prototype SC VBC and energy harvesting system using the SC VBC to show the effectiveness and feasibility of our proposed design guideline.},
keywords={},
doi={10.1587/transele.2019CTI0002},
ISSN={1745-1353},
month={October},}
Copy
TY - JOUR
TI - Design of Switched-Capacitor Voltage Boost Converter for Low-Voltage and Low-Power Energy Harvesting Systems
T2 - IEICE TRANSACTIONS on Electronics
SP - 446
EP - 457
AU - Tetsuya HIROSE
AU - Yuichiro NAKAZAWA
PY - 2020
DO - 10.1587/transele.2019CTI0002
JO - IEICE TRANSACTIONS on Electronics
SN - 1745-1353
VL - E103-C
IS - 10
JA - IEICE TRANSACTIONS on Electronics
Y1 - October 2020
AB - This paper discusses and elaborates an analytical model of a multi-stage switched-capacitor (SC) voltage boost converter (VBC) for low-voltage and low-power energy harvesting systems, because the output impedance of the VBC, which is derived from the analytical model, plays an important role in the VBC's performance. In our proposed method, we focus on currents flowing into input and output terminals of each stage and model the VBCs using switching frequency f, charge transfer capacitance CF, load capacitance CL, and process dependent parasitic capacitance's parameter k. A comparison between simulated and calculated results showed that our model can estimate the output impedance of the VBC accurately. Our model is useful for comparing the relative merits of different types of multi-stage SC VBCs. Moreover, we demonstrate the performance of a prototype SC VBC and energy harvesting system using the SC VBC to show the effectiveness and feasibility of our proposed design guideline.
ER -
English
