Results 21 to 30 of about 10,474 (298)

Novel Zero-Voltage Zero-Current Transition Buck Converter With Minimal Impact of Active Auxiliary Cell on Overall Dynamics

open access: yesIEEE Access, 2023
This paper presents a novel zero-voltage zero-current transition DC/DC buck converter, which uses an active auxiliary resonant network to achieve soft switching operation of semiconductor switches and soft-recovery of power diodes over wide output power ...
Ananta Pal, Shib Sankar Saha
doaj   +1 more source

РОЗВИТОК ПРИНЦИПІВ ПОБУДОВИ ТА ВДОСКОНАЛЕННЯ МАГНІТНО- НАПІВПРОВІДНИКОВИХ ІМПУЛЬСНИХ ПРИСТРОЇВ СИЛОВОЇ ПЕРЕТВОРЮВАЛЬНОЇ ТЕХНІКИ

open access: yesПраці Інституту електродинаміки Національної академії наук України, 2022
The principles of construction and improvement of magnetic-semiconductor devices of power converter technology using a complex synthesis of their elements, keys, nodes, and structures are considered in specific examples.
В.В. Голубєв   +3 more
doaj   +1 more source

Prediction of Betavoltaic Battery Parameters

open access: yesEnergies, 2023
The approaches for predicting output parameters of betavoltaic batteries are reviewed. The need to develop a strategy for predicting these parameters with sufficient accuracy for the optimization of betavoltaic cell design without using the simple trial ...
Eugene B. Yakimov
doaj   +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 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

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

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

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

A Simple Carrier-Based Modulation for the SVM of the Matrix Converter [PDF]

open access: yes, 2013
Today, industry has not fully embraced the matrix converter solution. One important reason is its high control complexity. It is therefore relevant to propose a simpler but efficient modulation scheme, similar as three phase voltage source inverter ...
ARPILLIERE, Michel   +5 more
core   +1 more source

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