Results 21 to 30 of about 63,467 (302)

EFFICIENCY EVALUATION TECHNIQUE OF THE SEMICONDUCTOR DC-DC CONVERTER APPLICATION IN THE POWER-SUPPLY SYSTEM

open access: yesElectrical engineering & Electromechanics, 2016
Purpose. To specify efficiency evaluation of the DС-DC power semiconductor converter application in the power-supply system. Methodology. We have chosen application version of converter and then used the statistical modeling of DC-DC converter for its ...
M. A. Poliakov, T. Y. Larionova
doaj   +1 more source

A mathematical model of the three-phase AC to DC voltage converter with fourzone voltage control and active-inductive load

open access: yesAdaptivni Sistemi Avtomatičnogo Upravlinnâ, 2021
The article focuses on electromagnetic processes in electric circuits with semiconductor switches. A mathematical model of a semiconductor converter with four-zone output voltage control has been created so as to analyse electromagnetic processes in ...
В. Михайленко   +2 more
doaj   +1 more source

Wavelength conversion for WDM communication systems using four-wavemixing in semiconductor optical amplifiers [PDF]

open access: yes, 1997
Four-wave mixing (FWM) in semiconductor optical amplifiers is an attractive mechanism for wavelength conversion in wavelength-division multiplexed (WDM) systems since it provides modulation format and bit rate transparency over wide tuning ranges.
Geraghty, David F.   +5 more
core   +1 more source

Non-isolated high gain DC-DC converter by quadratic boost converter and voltage multiplier cell

open access: yesAin Shams Engineering Journal, 2018
A novel non-isolated DC-DC converter is proposed by combining quadratic boost converter with voltage multiplier cell. The proposed converter has low semiconductor device voltage stress and switch utilization factor is high.
J. Divya Navamani   +2 more
doaj   +1 more source

Hybrid and modular multilevel converter designs for isolated HVDC–DC converters [PDF]

open access: yes, 2018
Efficient medium and high-voltage dc-dc conversion is critical for future dc grids. This paper proposes a hybrid multilevel dc-ac converter structure that is used as the kernel of dc-dc conversion systems.
Adam, G.P.   +4 more
core   +1 more source

Comparative Analysis of Semiconductor Power Losses of Galvanically Isolated Quasi-Z-Source and Full-Bridge Boost DC-DC Converters

open access: yesElectrical, Control and Communication Engineering, 2015
This paper compares semiconductor losses of the galvanically isolated quasi-Z-source converter and full-bridge boost DC-DC converter with active clamping circuit. Operation principle of both converters is described.
Kosenko Roman   +3 more
doaj   +1 more source

ANALYTICAL AND MODEL STUDY OF ACTIVE SEMICONDUCTOR CONVERTER IN ELECTRICAL DRIVE SYSTEMS [PDF]

open access: yesНаучно-технический вестник информационных технологий, механики и оптики, 2014
Mathematical description of the active semiconductor converter based on the main (smooth) component method and method of resulting vector is proposed.
S. G. German-Galkin   +2 more
doaj  

Cascaded wavelength conversion by four-wave mixing in a strained semiconductor optical amplifier at 10 Gb/s [PDF]

open access: yes, 1997
We demonstrate for the first time cascaded wavelength conversion by four-wave mixing in a semiconductor optical amplifier. Bit-error-rate performance of
Geraghty, David F.   +5 more
core   +1 more source

Development of a relay-vector control system for a multi-phase semiconductor converter of electric energy

open access: yesСистемный анализ и прикладная информатика, 2021
A system of relay-vector control of current in the circuit of a polyphase electric machine has been developed. For this, on the basis of the analysis of electromagnetic processes in a multiphase semiconductor converter of electrical energy, its discrete ...
S. V. Panteleev, A. N. Malashin
doaj   +1 more source

Devices for express diagnostics of power semiconductor devices and semiconductor converters

open access: yesOmsk Scientific Bulletin, 2023
The increase in the power of power semiconductor converters operated in the railway industry is associated with the use of group connections of power semiconductor devices in them, the variation in the parameters of which, and, therefore, their unequal load, causes a decrease in the reliability of the power semiconductor converters as a whole.
E. B. Koroleva   +4 more
openaire   +2 more sources

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