Results 81 to 90 of about 237,029 (312)
AC-DC CONVERTER WITH LOW RIPPLE OUTPUT [PDF]
, 2004 An AC-DC converter that includes a plurality of power conversion units that overlay their signals to generate a DC signal with low voltage level, small voltage and current ripples, but high DC current.
core
Unprecedented Spin‐Lifetime of Itinerant Electrons in Natural Graphite Crystals
Advanced Functional Materials, EarlyView.Graphite exhibits extraordinary spintronic potential, with electron spin lifetimes reaching 1,000 ns at room temperature ‐ over 100 times longer than graphene‐based devices. Magnetic resonance spectroscopy reveals strong anisotropy: out‐of‐plane spins live 50 times longer than their in‐plane counterparts.
Bence G. Márkus +5 more
wiley +1 more source
New Power Electronics Converter Interfacing a Hybrid Dc/Ac Microgrid [PDF]
, 2013 poster abstractDistributed loads can either be ac or dc. It is also possible to combine ac and dc subgrids to form the hybrid microgrid. The main advantage of the hybrid microgrid is that it has higher efficiency and lesser power conversion. In this work
Alibeik, M., dos Santos, Euzeli C., Jr.
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Design and development of fly-back converter with buck-boost regulator for DC motor used in electric vehicle for the application of renewable energy [PDF]
, 2017 This paper presents design and development of fly-back converter with buck-boost regulator for dc motor used in electric vehicle for renewable energy application. An electric vehicle working with DC motor energized from fly-back converter with buck-boost
Manjesh, ., Manjunatha, K.C.
core +1 more source
In Situ Study of Resistive Switching in a Nitride‐Based Memristive Device
Advanced Functional Materials, EarlyView.In situ TEM biasing experiment demonstrates the volatile I‐V characteristic of MIM lamella device. In situ STEM‐EELS Ti L2/L3 ratio maps provide direct evidence of the oxygen vacancies migrations under positive/negative electrical bias, which is critical for revealing the RS mechanism for the MIM lamella device.
Di Zhang +19 more
wiley +1 more source
Stability analysis of electric power systems for ‘more electric’ aircraft [PDF]
, 2008 This paper presents a comprehensive assessment of small-signal stability for a “more-electric” aircraft power system consisting of a synchronous variable-frequency generator which supplies several power electronic controlled loads via an 18-pulse ...
Griffo, Antonio, Howe, D., Wang, J.B.
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Charge‐Induced Morphing Gels for Bioinspired Actuation
Advanced Functional Materials, EarlyView.This study introduces a novel electroactive actuation mechanism that enables the gel material to generate substantial and reversible shape‐changing while preserving topological and isochoric (volumetric) equivalence. The resultant morphing behaviors can mimic the movements of muscle‐driven organelles in nature, including cilia‐like beating and ...
Ciqun Xu +4 more
wiley +1 more source
AC-DC CONVERTER WITH LOW RIPPLE OUTPUT [PDF]
, 2003 An AC-DC converter that includes a plurality of power conversion units that overlay their signals to generate a DC signal with low voltage level, small voltage and current ripples, but high DC current.
core
Energy Reports, 2019 Sub-Saharan Africa continues to suffer energy poverty due to low grid expansion rates necessitated by low economic activities in those regions, sparse population distribution coupled with low household load demands, and insufficient power generation.
Nicholas Nixon Opiyo
doaj +1 more source
A Direct Power Conversion Topology for Grid Integration of Hybrid AC/DC Energy Resources
IEEE Transactions on Industrial Electronics, 2013 This paper proposes a multiple-input versatile matrix converter (VMC) for integrating hybrid ac/dc energy resources and storages to the power grid. The VMC is developed from the traditional indirect matrix converter but operates in the reverse-boost mode rather than in the forward-buck mode.
Liu, Xiong +3 more
openaire +2 more sources