Results 41 to 50 of about 18,913 (265)

Application of a Novel AＲCP Circuit in UPS

Journal of Harbin University of Science and Technology, 2017
In order to reduce the loss of the power switching device and improve the efficiency of the UP system，the AＲCP soft switching technology can be used.
MA Jun-jie, WANG Xu-dong, WANG Zhen-dong, HU Ming-bao   +3 more
doaj   +1 more source

Power Quality Analysis of a Hybrid Microgrid-Based SVM Inverter-Fed Induction Motor Drive with Modulation Index Diversification

Energies, 2022
The effects of varying modulation indices on the current and voltage harmonics of an induction motor (IM) powered by a three-phase space vector pulse-width modulation (SVM) inverter are presented in this research.
Subramanian Vasantharaj, Vairavasundaram Indragandhi, Mohan Bharathidasan, Belqasem Aljafari   +3 more
doaj   +1 more source

Short dental implants in the posterior region : the effect of platform-switching and a nanorough surface on peri-implant bone loss [PDF]

, 2012
Korte implantaten (10 mm lengte), waarvoor meerdere redenen bestaan. In de eerste plaats heeft een kort implantaat minder oppervlak beschikbaar voor contact tussen bot en implantaat dan een langer implantaat met eenzelfde diameter.
Telleman, Gerdien, Raghoebar, Gerry M., Meijer, Henny J. A., Telleman, Gerdien,, Vissink, Arjan, Vissink, Arjan; id_orcid   +5 more
core   +1 more source

The net zero mass loss phenomenon on opening switching contacts with AC loading [PDF]

, 1999
Studies are conducted on silver metal oxide contacts on a purposed built apparatus to investigate the extent of contact erosion under opening (break) operations.
J.W. McBride, Swingler, Jonathan, McBride, John W., Swingler, J., McBride, J.W., J. Swingler   +5 more
core   +1 more source

Modified Design of Two-Switch Buck-Boost Converter to Improve Power Efficiency Using Fewer Conduction Components

Applied Sciences, 2022
In this study, a modified design of a two-switch buck-boost (TSBB) converter is proposed to improve power efficiency using fewer conduction components, and the optimal power range is measured.
Sunghwan Kim, Haiyoung Jung, Seok-hyun Lee   +2 more
doaj   +1 more source

Probabilistic relabelling strategies for the label switching problem in Bayesian mixture models. [PDF]

, 2010
The label switching problem is caused by the likelihood of a Bayesian mixture model being invariant to permutations of the labels. The permutation can change multiple times between Markov Chain Monte Carlo (MCMC) iterations making it difficult to infer ...
Sperrin, M.; id_orcid, Sperrin, M., Wit, Ernst, Sperrin, Matthew, Sperrin, M.,, Jaki, T.,, Jaki, T., Jaki, Thomas, Wit, E., Wit, E.,   +9 more
core   +1 more source

Asymmetric Split-Gate 4H-SiC MOSFET with Embedded Schottky Barrier Diode for High-Frequency Applications

Energies, 2021
4H-SiC Metal-Oxide-Semiconductor Field Effect Transistors (MOSFETs) with embedded Schottky barrier diodes are widely known to improve switching energy loss by reducing reverse recovery characteristics.
Kyuhyun Cha, Kwangsoo Kim
doaj   +1 more source

A Parallel Dual LLC Resonant Converter with Wide Output Voltage Range for Energy System Applications

Energies
This paper proposes a half-bridge parallel dual LLC resonant converter with wide output voltage range. The proposed converter uses a conventional parallel double half-bridge LLC resonant converter.
Chih-Chiang Hua, Jian-Bin Lai, Wei-Cheng Hung   +2 more
doaj   +1 more source

Investigation on filter requirements and stability effects of SiC MOSFET-based high-frequency grid-connected converters

The Journal of Engineering, 2019
The new era of power semiconductor devices is exploiting the high potential of wide bandgap device-based high-frequency power converters. The advanced capabilities of Silicon carbide (SiC) semiconductors allow the power converters to switch at higher ...
Blessy John, Arindam Ghosh, Arindam Ghosh, Firuz Zare   +3 more
doaj   +1 more source

Advanced Modulation Scheme of a Dual-Active-Bridge Series Resonant Converter (DABSRC) for Enhanced Performance

Mathematics, 2022
This paper proposes a two-degree-of-freedom (2-DoF) modulation technique for the efficient optimization of an open-loop three-phase dual-active-bridge series resonant converter (3P-DABSRC).
Asad Hameed, Ali Nauman, Munleef Quadir, Irfan Latif Khan, Adeel Iqbal, Riaz Hussain, Tahir Khurshaid   +6 more
doaj   +1 more source