Zobrazeno 1 - 10
of 25
pro vyhledávání: '"Dobroslav Kovac"'
Autor:
Jan Perdulak, Dobroslav Kovac, Irena Kovacova, Matus Ocilka, Andrii Gladyr, Dmytro Mamchur, Iurii Zachepa, Tibor Vince, Jan Molnar
Publikováno v:
Communications, Vol 15, Iss 3, Pp 32-38 (2013)
The paper presents a novel concept of multiphase boost converter (MPBC) with high efficiency of energy conversion. The new topology of MPBC is compared with conventional single-phase boost converter (SPBC). It is shown that almost whole input energy
Externí odkaz:
https://doaj.org/article/af4483191baa4fe795f46c65cfd02935
Autor:
Matus Ocilka, Dobroslav Kovac, Irena Kovacova, Jan Perdulak, Andrii Gladyr, Dmytro Mamchur, Iurii Zachepa, Tibor Vince, Jan Molnar
Publikováno v:
Communications, Vol 15, Iss 3, Pp 56-62 (2013)
The paper deals with the design of the voltage source half-bridge resonant inverter with the specific load coil, which is suitable for induction heating applications. To ensure the correct functionality and right frequency range of the self-resonant
Externí odkaz:
https://doaj.org/article/fd2b22c439794ccdb1bc127062cc3241
Publikováno v:
Communications, Vol 12, Iss 1, Pp 16-19 (2010)
Modelling of the stress field distribution in a magnetoelastic sensor core is proposed. The components of stress field are carried out by a numerical solution of boundary-value problem for stress field. The obtained results are presented in graphical
Externí odkaz:
https://doaj.org/article/fa2647dd95af489798eec74f9fbc5dc4
Autor:
Dobroslav Kovac, Irena Kovacova
Publikováno v:
Advances in Electrical and Electronic Engineering, Vol 7, Iss 1 - 2, Pp 183-186 (2008)
This paper deals with the computer analysis of the electromagnetic compatibility (EMC) problems focused on the area of electrical machines, which can also disclose the concerning startling facts. A problem of interference between electric motor and s
Externí odkaz:
https://doaj.org/article/8ad750bb00a04131a72a3d621c5fb2f0
Autor:
Irena Kovacova, Dobroslav Kovac
Publikováno v:
Advances in Electrical and Electronic Engineering, Vol 5, Iss 3, Pp 392-396 (2006)
The paper is dealing with some electromagnetic compatibility (EMC) problems of converters and inverters, which are utilized for feeding of electric machines.
Externí odkaz:
https://doaj.org/article/d0a41cb476f94b67b3a344f0bf8f302d
Autor:
Peter Hrabovský, Jan Molnar, Tibor Vince, Patrik Jacko, Dobroslav Kovac, Matej Beres, Simona Kiresova
Publikováno v:
Journal of Universal Computer Science, Vol 26, Iss 11, Pp 1495-1512 (2020)
JUCS-Journal of Universal Computer Science 26(11): 1495-1512
Scopus-Elsevier
JUCS-Journal of Universal Computer Science 26(11): 1495-1512
Scopus-Elsevier
IoT technology is gaining more and more popularity in practice, as it collects, processes, evaluates and stores important measured data. The IoT is used every day in the work, in the home or smart houses or in public areas. It realizes the connectivi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c1fb5c97eb5a2581df76801b0bceb664
https://lib.jucs.org/article/24151/download/pdf/
https://lib.jucs.org/article/24151/download/pdf/
Autor:
Viacheslav Melnykov, Dobroslav Kovac
Publikováno v:
2021 IEEE International Conference on Modern Electrical and Energy Systems (MEES).
the phenomenon of induction heating is a very energy efficient way of heating bodies. However, it depends on various factors, making the problem highly nonlinear. Mathematical analysis of this problem is in most cases very complex and is reduced to s
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2b171b013faba7e8ef9203b4c3074e09
https://doi.org/10.1109/mees52427.2021.9598753
https://doi.org/10.1109/mees52427.2021.9598753
Efficiency Enhancement of Non-Isolated DC-DC Interleaved Buck Converter for Renewable Energy Sources
Autor:
Branislav Fecko, Simon Gans, Dobroslav Kovac, Jozef Dziak, Jan Molnar, Matej Beres, Iveta Tomcikova, Patrik Jacko, Tibor Vince, Irena Kovacova
Publikováno v:
Energies; Volume 14; Issue 14; Pages: 4127
Energies, Vol 14, Iss 4127, p 4127 (2021)
Energies, Vol 14, Iss 4127, p 4127 (2021)
The article describes the principles based on which it is possible to obtain energy from renewable sources more efficiently. The principles use the conventional DC-DC interleaved buck converter based on the common electronic component types and the c
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::71b84290baac13efb39abae0b4215eb2
Autor:
Irena Kovacova, Jan Molnar, D. Schweiner, Iveta Tomcikova, Tibor Vince, M. Bereš, Jozef Dziak, Dobroslav Kovac, Patrik Jacko, Radoslav Bucko
Publikováno v:
Electronics Letters. 54:435-437
The letter deals with the methodology for determining the optimal number of phases of a multi-phase DC to DC buck converter from the point of view of its maximum efficiency. It also analyses the impact of individual parameters of the converter and th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9ae8602e67f0aefd39d58525fc2d9448
https://doi.org/10.1049/el.2018.0043
https://doi.org/10.1049/el.2018.0043
Autor:
Dobroslav Kovac, Andrii Gladyr
Publikováno v:
2019 IEEE International Conference on Modern Electrical and Energy Systems (MEES).
the paper deals with the problem of designing a suitable driver for MOSFET and IGBT transistors. The circuit should provide not only sufficient excitation but also galvanic separation of the power and control circuit and should be able to set the opt
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::535b23203ace870eef53c8d8e0e8520a
https://doi.org/10.1109/mees.2019.8896665
https://doi.org/10.1109/mees.2019.8896665