Results 11 to 20 of about 10,509 (298)

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

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   +8 more sources

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   +2 more sources

Design of High-Performance Driving Power Supply for Semiconductor Laser [PDF]

open access: yes, 2023
High power semiconductor laser is a kind of photoelectric device with high efficiency and high stability, the performance of its drive system directly affects its output characteristics and service life.
Bin Feng   +4 more
core   +1 more source

Experimental analysis of four-wave mixing in a semiconductor optical amplifier using frequency resolved optical gating [PDF]

open access: yes, 2007
Four-wave mixing was performed in a multi-quantum well semiconductor optical amplifier in order to demultiplex 2 ps pulses from 80 GHz to 10 GHz. The demultiplexed pulses were measured using frequency resolved optical gating.
Barry, Liam P.   +8 more
core   +1 more source

Development of a vector control system of the semiconductor converter, which will provide a polyharmonic operating mode of a polyphase electric machine

open access: yesВесці Нацыянальнай акадэміі навук Беларусі: Серыя фізіка-тэхнічных навук, 2020
A system for 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   +2 more
doaj   +1 more source

A mathematical model of the three-phase AC to DC voltage converter with threezone voltage control

open access: yesAdaptivni Sistemi Avtomatičnogo Upravlinnâ, 2023
The article focuses on electromagnetic processes in electric circuits with semiconductor switches. A mathematical model of a semiconductor converter with three-zone output voltage control has been created so as to analyse electromagnetic processes in ...
В. Михайленко   +6 more
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

A waveguide polarization toolset design based on mode beating [PDF]

open access: yes, 2011
A toolset of waveguide elements is examined, which can be combined to produce polarization functional devices in a single contiguous waveguide. In particular, waveguide implementations of an optical isolator and a polarization modulator are discussed ...
Hutchings, D.C.   +3 more
core   +1 more source

STARTER-GENERATOR SYSTEM FOR AUXILIARY POWER UNIT

open access: yesНаучный вестник МГТУ ГА, 2017
The article presents a starter-generator system for an auxiliary power unit of an aircraft. A feature of the presented system is the use of a synchronous generator with excitation from permanent magnets and a semiconductor converter.
A. V. Levin   +6 more
doaj   +1 more source

Study of the electromagnetic processes in a converter wirh four zoned regulations of the voltage

open access: yesAdaptivni Sistemi Avtomatičnogo Upravlinnâ, 2023
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 ...
V. Mykhailenko   +3 more
doaj   +1 more source

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