Results 251 to 260 of about 63,467 (302)

Improving the Reliability of Semiconductor Converters

Russian Electrical Engineering, 2020
This paper considers the opportunities for improving the reliability of power semiconductor converters by increasing the installed capacity margin and modifying the configuration of power circuit diagrams. As shown by regression analysis, the unit cost of an autonomous voltage inverter with an increase in the installed capacity of the frequency ...
M. E. Korzhavin, A. M. Zhuravlev, M. A. Grigorev   +2 more
openaire   +1 more source

Semiconductor Thermoelectric Converters with Improved Precision

Journal of Electronic Materials, 2012
To reduce the influence of the Thomson effect, computer models of thermoelectric measuring converters based on thermopiles with a small number of thermocouples have been constructed. The temperature distribution was studied in a converter heater with a nonuniform arrangement of thermocouples and in a heater with variable heat release along its length ...
L. I. Anatychuk, V. I. Bodnaruk, D. D. Taschuk   +2 more
openaire   +1 more source

Modulation algorithms for controlling semiconductor converters

Russian Electrical Engineering, 2015
Different algorithms for controlling semiconductor converters are considered using the example of an autonomous inverter. The structures of pulse-width and space vector modulation algorithms and ways to improve them are shown. The electromagnetic compatibility of the autonomous inverter with different versions of the modulation algorithm is analyzed.
B. Yu. Vasil’ev, V. S. Dobush
openaire   +1 more source

AlGaAs Semiconductor Quasiphase-Matched Wavelength Converters

Japanese Journal of Applied Physics, 1998
Wavelength conversion based on sum frequency generation (SFG) using a semiconductor quasiphase-matched (QPM) waveguide with a periodically crystal domain inverted structure has been studied both theoretically and experimentally. Mathematical expressions with clear physical insight into QPM SFG are derived, taking into account waveguide ...
Chang-qing Xu, Keizo Takemasa, Koji Nakamura, Hideaki Okayama, Takeshi Kamihoh   +4 more
openaire   +1 more source

Converter Topologies and Power Semiconductors for Industrial Medium Voltage Converters

2008 IEEE Industry Applications Society Annual Meeting, 2008
Today there are numerous different converter topologies and power semiconductor devices used in medium- voltage drive systems. This paper provides a general overview of the common converter topologies available on the market and their corresponding major characteristics.
Marc Hiller, Rainer Sommer, Max Beuermann   +2 more
openaire   +1 more source

Semiconducting graphene: converting graphene from semimetal to semiconductor

Nanoscale, 2013
Interest in graphene has grown extensively in the last decade or so, because of its extraordinary physical properties, chemical tunability, and potential for various applications. However, graphene is intrinsically a semimetal with a zero bandgap, which considerably impedes its use in many applications where a suitable bandgap is required.
Ganhua, Lu, Kehan, Yu, Zhenhai, Wen, Junhong, Chen   +3 more
openaire   +2 more sources

Semiconductor Converter Applications

1986
Power electronics are employed wherever the task is to convert, control, and contactlessly switch electrical energy. Reasons for the steadily increasing application of static converters are to be found in their technical properties and operating characterstics.
openaire   +1 more source

Spot size converter integrated semiconductor optical amplifier

Technical Digest. CLEO/Pacific Rim '99. Pacific Rim Conference on Lasers and Electro-Optics (Cat. No.99TH8464), 1999
Spot size converter (SSC)-SOA consists of a slightly tensile bulk 0.2 /spl mu/m thick InGaAsP (/spl lambda/=1.55 /spl mu/m) active layer and 0.1 /spl mu/m thick InGaAsP (/spl lambda/=1.3 /spl mu/m) waveguides, which were grown by selective area growth (SAG) using MOCVD to implement SSC. The total device length is 1500 /spl mu/m.
J.S. Lee, J.R. Kim, S. Park, M.W. Park, J.S. Yoo, S.D. Lee, A.G. Choo, T.I. Kim   +7 more
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Semiconductor converters of electrical energy

2020
The textbook considers the need, principles and methods of mutual conversion of parameters of electric energy at DC and AC for stationary and Autonomous objects. Features of operation of power electronics elements in specific conditions of their continuous high-frequency switching are described.
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