Results 211 to 220 of about 240,908 (266)
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Embedding image watermarks in dc components
IEEE Transactions on Circuits and Systems for Video Technology, 2000Both watermark structure and embedding strategy affect robustness of image watermarks. Where should watermarks be embedded in the discrete cosine transform (DCT) domain in order for the invisible image watermarks to be robust? Though many papers in the literature agree that watermarks should be embedded in perceptually significant components, dc ...
Jiwu Huang, Yun Q. Shi 0001, Yi Shi
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Tribological Behavior of Distaloy DC Components
Materials Science Forum, 2017A sintered material based on pre-alloyed powders (Fe-Ni-Mo) is expansively applied in the automotive industry and Distaloy is today the most widely used raw material worldwide for the production of complex, precise, high strength PM machine parts. In this study a diffusion bonded powder type of Distaloy DC (Fe-2 wt. % Ni-1.5 wt.
Öksüz K.E. +2 more
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Principal Component Analysis for Fault Detection and Isolation in a DC-DC Buck Converter
2021 18th International Multi-Conference on Systems, Signals & Devices (SSD), 2021The principal component analysis (PCA) is as well as being an eminent technique for dimensionality reduction; a powerful fault detection and isolation (FDI) technique. This reliable FDI has ubiquitously and successfully been used for the monitoring of complex systems.
Cheikhna Mahfoudh +4 more
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High current DC-DC converter with SMT components
Twentieth Annual IEEE Applied Power Electronics Conference and Exposition, 2005. APEC 2005., 2005The use of interleaving techniques in DC/DC converter allows several important advantages such as smaller filters and a better dynamic response. The massive use of this concept may change the design and the look of these converters. In this paper two 1000 W DC/DC converters with automotive specifications have been developed according to this principle.
O. Garcia +3 more
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Microscale magnetic components for DC-DC converter applications
IET Seminar on MEMS Sensors and Actuators, 2006Core materials for microinductors and microtransformers were assessed for operation in the MHz frequency range. The performance of electrodeposited nickel-iron, cobalt-iron- copper alloys and the commercial alloy Vitrovac 6025 have been examined through their inclusion within a custom-made solenoid microinductor.
D. Flynn, M.P.Y. Desmulliez
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Hybrid Bidirectional DC–DC Converter With Low Component Counts
IEEE Transactions on Industry Applications, 2018In this paper, a hybrid bidirectional dc–dc converter is presented, which is a combination of a switched-capacitor converter and an inductor-based converter with low component counts. The input current ripple and peak charging current are small with the help of the inductor.
Shouxiang Li +3 more
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DC-DC CONVERTER RELIABILITY: DESIGN, COMPONENTS AND QUALIFICATION
International Journal of Reliability, Quality and Safety Engineering, 2005This paper provides a comprehensive study on reliability issues related to DC-DC converter design. First of all, some common reliability issues and DC-DC converter design topologies are discussed. Then, a reliability sensitivity study results on an industry standard VRM is presented using a prediction-based design-for-reliability and sensitivity ...
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On the reduction of component count in switched capacitor DC/DC convertors
PESC97. Record 28th Annual IEEE Power Electronics Specialists Conference. Formerly Power Conditioning Specialists Conference 1970-71. Power Processing and Electronic Specialists Conference 1972, 2002Conventional switched capacitor power convertors are unsuitable for many practical applications because of their large component count. A new modified topology is proposed for step-down DC/DC switched capacitor power convertors using a multistage structure of switches and capacitors.
P. Chhawchharia, D.K.W. Cheng, Y.S. Lee
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Effect of component design on the DC/DC power converters dynamics
2017 10th International Symposium on Advanced Topics in Electrical Engineering (ATEE), 2017This paper analyzes the impact of converter design elements on the operating performance of DC/DC converters, used worldwide for renewable energy sources. The design of inductor and capacitor elements is made considering the acceptable output ripple of voltage and current.
M.Q. Duong +4 more
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A consideration of loss component in model control dc-dc converter
2015 International Conference on Renewable Energy Research and Applications (ICRERA), 2015Recently, the energy saving is required. It is necessary for the energy saving to operate the electric device in the sleep mode. Therefore, the output voltage rises abnormally because the dc-dc converter is required the operation in the discontinuous current mode.
Yudai Furukawa +4 more
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