Searched for: subject%3A%22DC%255C-DC%255C+power%255C+converters%22
(1 - 13 of 13)
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Yu, G. (author), Yadav, S. (author), Dong, J. (author), Bauer, P. (author)
Triangular current mode (TCM) zero-voltage switching (ZVS) modulation method is widely adopted in power electronic converters to achieve acceptable efficiency in high switching frequency operations. For bidirectional dc-dc converters, in order to realize ZVS turn-on, a reverse inductor current can be utilized for this purpose through variable...
journal article 2024
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Lu, Qi (author), Li, Shuangmu (author), Zhao, Bo (author), Jiang, Junmin (author), Chen, Zhiyuan (author), Du, S. (author)
Multiple voltage conversion ratio (VCR) recursive switched-capacitor (SC) dc-dc converters, based on several basic 2:1 converters, are widely used for on-chip power supplies due to their flexible VCRs for higher energy efficiency. However, conventional multiple VCR SC converters usually have one or more 2:1 converters unused for some VCRs,...
journal article 2023
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Singh, G.D. (author), Nemati, Hossein Mashad (author), Alavi, S.M. (author), de Vreede, L.C.N. (author)
This article presents an inverted Doherty power amplifier (IDPA) made load insensitive up to 2:1 voltage standing wave ratio (VSWR) across its fractional bandwidth with a very compact wideband impedance sensor embedded in its output power-combining network (OPCN). To correct for load variation, a low-loss tunable resonator (TR) is used to...
journal article 2023
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Yu, G. (author), Dong, J. (author), Soeiro, Thiago B. (author), Zhu, G. (author), Yao, Y. (author), Bauer, P. (author)
This article introduces a three-mode variable-frequency zero-voltage switching (ZVS) modulation method for the four-switch buck+boost converter. This method makes this circuit concept well suited for applications, such as wireless power charging of electric vehicles, where this circuit operates as a power buffer between the resonant converter...
journal article 2022
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Zhu, G. (author), Dong, J. (author), Shi, W. (author), Soeiro, Thiago B. (author), Xu, J. (author), Bauer, P. (author)
This article proposes a mode-switching-based phase shift control (MS-PSC) for wireless power transfer (WPT) systems, which is able to achieve power regulation, load matching, and wide ZVS operations simultaneously without using additional dc-dc converters. Based on the mode transitions between the full-bridge, mixed-bridge, and half-bridge...
journal article 2022
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Al, T.M. (author)
Over the last decade the share of electric vehicles has increased and will continue to increase in the future in order to reduce the carbon footprint by transportation. However, the battery voltage is not standardised and can differ per car model. To reduce the charging time, a high power converter is preferred. Moreover, in order to utilise the...
master thesis 2020
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Patel, Sagar (author)
Ever since inception of field of electronics, electronic devices are getting smaller, lighter and more power efficient. At the same time computing power of the devices is increasing exponentially. There is an ongoing demand for power supplies of computing devices to get smaller, more energy dense while achieving higher efficiency. LLC resonant...
master thesis 2019
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Exalto, Marvin (author), Perumpillichira, Athul (author)
This BSc thesis concerns the solar plane bachelor graduation project. This project aims to improve the flight time of a commercially available RC plane by utilizing photovoltaic technologies. In this thesis the power electronics system that supplies power generated by photovoltaic technologies to the RC plane used during the solar plane project...
bachelor thesis 2019
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Rouzbehi, Kumars (author), Miranian, Arash (author), Escaño, Juan Manuel (author), Rakhshani, E. (author), Shariati, Negin (author), Pouresmaeil, Edris (author)
This paper develops a data-driven strategy for identification and voltage control for DC-DC power converters. The proposed strategy does not require a pre-defined standard model of the power converters and only relies on power converter measurement data, including sampled output voltage and the duty ratio to identify a valid dynamic model for...
journal article 2019
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Shen, Yanfeng (author), Wang, Huai (author), Al Durra, Ahmed (author), Qin, Z. (author), Blaabjerg, Frede (author)
This paper proposes a new series resonant DC-DC converter with four configurable operation states depending on the input voltage and output voltage levels. It suits well for the DC-DC stage of grid-connected photovoltaic (PV) systems with a wide-input voltage range and different grid voltage levels, i.e., 110/120 V and 220/230/240 V. The...
journal article 2019
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Urso, A. (author), Giagka, Vasiliki (author), Serdijn, W.A. (author)
This manuscript points out some mistakes in the Introduction and in the table of comparison of a paper already published in this journal by Hsu and Schmid [1]. Although the main claim of [1] is still preserved, we believe the paper needs to be rectified for scientific correctness of the work. In [1], the first High Frequency Switched...
journal article 2019
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Sakkas, Sotiris (author)
The growth of distributed Renewable Energy share in the total electricity production as wells as technological advancements in power electronics and increase of DC loads, point towards the development of the DC microgrid (DCMG) concept as a valid model for future energy systems especially for operations and locations where the existing grid...
master thesis 2018
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Poikilidis, Michalis (author)
It is expected that DC grids will evolve into large meshed networks, which will have multiple DC voltage levels. Two DC grids operating at different voltage levels could be interconnected using a DC-DC converter. The role of the DC-DC converter in meshed DC networks is similar to the role of a transformer in traditional AC systems. The DC-DC...
master thesis 2017
Searched for: subject%3A%22DC%255C-DC%255C+power%255C+converters%22
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