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Volume 13
Issue 22
10.3390/en13226130
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Article

Influence of MOSFET Parasitic Capacitance on the Operation of Interleaved ZVS Boost Converters

by
Piotr Zimoch
*,
Marcin Kasprzak
and
Kamil Kierepka
Department of Power Electronics, Electrical Drive and Robotics, Silesian University of Technology; 44100, Gliwice, Poland
*
Author to whom correspondence should be addressed.
Energies 2020, 13(22), 6130; https://doi.org/10.3390/en13226130
Submission received: 29 October 2020 / Revised: 17 November 2020 / Accepted: 19 November 2020 / Published: 23 November 2020
(This article belongs to the Section A1: Smart Grids and Microgrids)
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Abstract

Interleaved zero-voltage switching boost converters have been known for over 20 years. However, the influence of parasitic capacitance of transistors has not been described. In this paper the converter is analyzed and the equation for voltage ratio is derived for any number of converter phases. First a general description of the topology, including main voltage and current waveforms, is provided. Subsequently the converter is analyzed and conditions for soft switching are derived. Next the analysis results are compared to measurements of an experimental converter setup. Discrepancies are identified and the influence of parasitic capacitance is analyzed. By considering the parasitic capacitance the difference between experimental and analytical results of voltage ratio is reduced from 0.2 to less than 0.05.
Keywords: zero-voltage switching (ZVS); quasi-resonant converters; boost converter; output capacitance zero-voltage switching (ZVS); quasi-resonant converters; boost converter; output capacitance

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MDPI and ACS Style

Zimoch, P.; Kasprzak, M.; Kierepka, K. Influence of MOSFET Parasitic Capacitance on the Operation of Interleaved ZVS Boost Converters. Energies 2020, 13, 6130. https://doi.org/10.3390/en13226130

AMA Style

Zimoch P, Kasprzak M, Kierepka K. Influence of MOSFET Parasitic Capacitance on the Operation of Interleaved ZVS Boost Converters. Energies. 2020; 13(22):6130. https://doi.org/10.3390/en13226130

Chicago/Turabian Style

Zimoch, Piotr, Marcin Kasprzak, and Kamil Kierepka. 2020. "Influence of MOSFET Parasitic Capacitance on the Operation of Interleaved ZVS Boost Converters" Energies 13, no. 22: 6130. https://doi.org/10.3390/en13226130

APA Style

Zimoch, P., Kasprzak, M., & Kierepka, K. (2020). Influence of MOSFET Parasitic Capacitance on the Operation of Interleaved ZVS Boost Converters. Energies, 13(22), 6130. https://doi.org/10.3390/en13226130

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