Results 251 to 260 of about 864,788 (299)

Power Chips for Efficient Energy Conversion

AIP Conference Proceedings, 2004
The Power Chips technology employs a gap of 4–10 nanometers in a gap diode to allow for efficient thermal conversion with very low thermal leakage. The design ΔT is on the order of 400 degrees single stage, with operation possible from 1 K to 1600 K, depending on configuration and meeting engineering challenges.
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Photovoltaic power conversion with efficiency weight optimisation

IEEE International Conference on Industrial Technology, 2003, 2004
Photovoltaic power conversion systems for power rating of about 2.5 kW consist generally of a step-up converter, a DC-AC inverter for 5 Hz and the transformer coupling to the grid. Potential separation is required between the modules and grid. A standard 5 Hz transformer can accomplish this separation.
E. Winfried, H. Weiss
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Optimization of klystron power conversion efficiency

1966 International Electron Devices Meeting, 1966
Optimum power conversion efficiency in klystrons involves two factors: (1) electron bunching, for highest current conversion efficiency, and (2) minimum velocity spread, for optimum energy removal in the output gap. The merit figure, a new criterion involving both of these factors, is shown to give an excellent quantitative indication of klystron power
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Simulation of organic solar cells’s power conversion efficiency

Solar Energy, 2021
Abstract This work presents the simulation of the power conversion efficiency of organic solar cells (OSCs), as well as the optimization of the thickness of active layer for better efficiency. The simulated OSCs uses P3HT: PCBM polymer as an active layer.
Eduardo Henrique dos Santos Rosa, Edemir Luiz Kowalski, Luiz Felipe Ribeiro Barrozo Toledo   +2 more
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Efficiency improvement of power conversion system with multilayer power inductor

2020 IEEE International Conference on Consumer Electronics - Asia (ICCE-Asia), 2020
In this paper, the multilayer power inductor with the air-clip is designed and fabricated to improve the saturation current of power inductor for the power conversion system. It is proved that the air-clip is able to influence the saturation current of power inductor and the efficiency of the power conversion system.
Hyun Gyu Jang, Dong Yun Jung, Doohyung Cho, Kun Sik Park, Jong-Won Lim, Yong Ha Lee   +5 more
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Compact and efficient transformerless power conversion system

Proceedings of International Conference on Power Electronics, Drives and Energy Systems for Industrial Growth, 2002
The power conversion system (PCS) developed by the author is a new technology that efficiently transforms power between AC and DC. The conversion process permits the input voltage level to be stepped up or down without the use of magnetic core transformers.
R. Limpaecher, R. Rodriguez, M. Bush, K. Vinacco, M. Gatewood   +4 more
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Doubling Power Conversion Efficiency of Si Solar Cells

Advanced Materials
AbstractImproving solar cells' power conversion efficiency (PCE) is crucial to further the deployment of renewable electricity. In addition, solar cells cannot function at exceedingly low temperatures owing to the carrier freeze‐out phenomenon. This report demonstrates that through temperature regulation, the PCE of monocrystalline single‐junction ...
Zhigang Li, Yingda Chen, Renqing Guo, Shuang Wang, Weike Wang, Tianle Wang, Shuaitao Zhao, Jiteng Li, Jianbo Wu, Zhongwen Jin, Sihan Wang, Bingqing Wei   +11 more
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High-efficiency fuel cell power conversion system

30th Annual Conference of IEEE Industrial Electronics Society, 2004. IECON 2004, 2005
This study presents a newly designed topology for a fuel cell energy source conversion in order to supply a highly reliable utility power. Because the fuel cell has the power quality of low voltage as well as high current due to the electrochemical reaction, a high step-up DC-DC converter is utilized for boosting the fuel cell voltage up to a constant ...
null Rong-Jong Wai, null Rou-Yong Duan, null Meng-An Kuo   +2 more
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Power Module Technologies for Efficient Energy Conversion

ECS Meeting Abstracts, 2011
Abstract not Available.
Hiroshi Ohnishi, Gourab Majumdar
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Emerging GaN Power Devices for Efficient & Compact Power Conversion

2018 IEEE Energy Conversion Congress and Exposition (ECCE), 2018
While Silicon Carbide (SiC) power devices have dominated the wide bandgap landscape in the past 20 years, Gallium Nitride (GaN) power devices have also been the subject of numerous investigations and research work. Even though GaN lacks a bulk substrate, it can easily be grown on other substrates such as Silicon (Si).
Ahmed Elasser, Ramanujam Ramabhadran, Mohammed Agamy, Han Peng, Kum-Kang Huh, Jeffrey Nasadoski   +5 more
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