| Title: | Control of a modified switched-capacitor boost converter |
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| Authors: | ID Ošlaj, Benjamin (Author)
ID Truntič, Mitja (Author) |
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| Files: |  electronics-11-00654-v2.pdf (8,68 MB)
MD5: 21466C11B8A362D04F2A5F165C2B23E0
 https://www.mdpi.com/2079-9292/11/4/654
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| Language: | English |
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| Work type: | Article |
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| Typology: | 1.01 - Original Scientific Article |
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| Organization: | FERI - Faculty of Electrical Engineering and Computer Science
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| Abstract: | Switched-capacitor converters and their alternatives have been shown to provide high
efficiency with high power densities on smaller volumes, and can thereby be a suitable choice for
energy harvesting. This paper proposes a hybrid power architecture based on a switched-capacitor
topology and a boost converter that can be used for such purposes. A switching capacitor circuit
can achieve any voltage ratio, allowing a boost converter to increase the input voltage to higher
voltage levels. The first stage is unregulated with high-efficiency voltage conversion. The boost stage
provides a regulated voltage output on such a converter. Rather than cascading two converters, their
operation is integrated for the output voltage regulation. One major problem of switched-capacitor
converters is output voltage regulation, which is solved by the interconnection of the power stages.
The simplicity and robustness of the solution provide the possibility to achieve higher voltage ratios
than cascading boost converters and provide higher efficiency. The converter’s size and cost can be
improved with the integration of switching capacitors in DC-DC converter structures. A converter
prototype has been designed, modelled, and built for the input voltage level of 2 V and power level
of 5 W. |
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| Keywords: | SC-BC, cascade control, low power, low voltage |
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| Publication status: | Published |
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| Publication version: | Version of Record |
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| Submitted for review: | 22.12.2021 |
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| Article acceptance date: | 18.02.2022 |
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| Publication date: | 19.02.2022 |
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| Publisher: | MDPI AG |
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| Year of publishing: | 2022 |
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| Number of pages: | 20 str. |
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| Numbering: | Vol. 11, iss. 4 |
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| PID: | 20.500.12556/DKUM-92306  |
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| UDC: | 621.38 |
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| ISSN on article: | 2079-9292 |
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| COBISS.SI-ID: | 100293635 |
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| DOI: | 10.3390/electronics11040654 |
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| Copyright: | © 2022 by the authors |
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| Publication date in DKUM: | 28.03.2025 |
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| Views: | 207 |
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| Downloads: | 25 |
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| Metadata: |    |
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| Categories: | Misc.
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