Results 31 to 40 of about 20,836 (296)

Conception of High-Frequency Power Planar Transformer Prototypes Based on FabLab Platform

open access: yesElectricity, 2021
Conceiving planar magnetic components for power electronic converters is very constraining, especially in the case of prototype development. Indeed, such making requires skills, specific appliances as well as human time for setting up the machine tools ...
Simon Thomy   +4 more
doaj   +1 more source

Quadrature signal splitting technique offering octave-band performance [PDF]

open access: yes, 2000
An analogue signal quadrature-phase splitting technique is introduced that offers enhanced amplitude and phase balance over a wider bandwidth than that available from transformer or branch-line methods.
J.P. McGeehan   +4 more
core   +2 more sources

Electromagnetic, flow and thermal study of a miniature planar spiral transformer with planar, spiral windings [PDF]

open access: yesINCAS Bulletin, 2014
This paper presents mathematical modeling and numerical simulation results for a miniature, planar, spiral transformer (MPST) fabricated in micro-electromechanical MEMS technology.
J. B. DUMITRU, A. M. MOREGA, M. MOREGA
doaj   +1 more source

Realization of a spherical boundary by a layer of wave-guiding medium

open access: yes, 2011
In this paper the concept of wave-guiding medium, previously introduced for planar structures, is defined for the spherically symmetric case. It is shown that a quarter-wavelength layer of such a medium serves as a transformer of boundary conditions ...
Ari Sihvola   +15 more
core   +1 more source

Characterization of low-noise quasi-optical SIS mixers for the submillimeter band [PDF]

open access: yes, 1996
We report on the development of low-noise quasi-optical SIS mixers for the frequency range 400-850 GHz. The mixers utilize twin-slot antennas, two-junction tuning circuits, and Nb-trilayer junctions. Fourier-transform spectrometry has been used to verify
Bin, Mei   +5 more
core   +1 more source

A 19-channel d.c. SQUID magnetometer system for brain research [PDF]

open access: yes, 1990
A 19-channel d.c. SQUID magnetometer system for neuromagnetic investigations is under constuction. The first-order gradiometers for sensing the signal are placed in a hexagonal configuration. D.c.
Caspari, M.   +10 more
core   +2 more sources

Analytical Modeling and Design of 27.12 MHz Single-Switch DC–DC Converter With PCB Transformer

open access: yesIEEE Access, 2023
This paper proposes analytical modeling and design of a 27.12 MHz single-switch dc-dc converter with galvanic isolation using a PCB transformer. The ODE-based analytical approach provides a more accurate circuit design by considering the high-order ...
Hyukjae Kwon   +3 more
doaj   +1 more source

Simple planar Bragg grating devices for photonic Hilbert transform

open access: yes, 2010
Hilbert transformers are important devices widely used in information processing and signal analysis in the electronic domain. For example, for spectral efficiency improvement, it is used to construct the analytic signal for single sideband (SSB ...
Gates, J.C.   +6 more
core   +1 more source

A comprehensive design approach for a three‐winding planar transformer

open access: yesIET Power Electronics, 2022
In this paper, a new three‐winding planar transformer design with the integrated leakage inductor is proposed for a triple‐active‐bridge converter. It enables two output voltage levels: a high voltage (HV) output port and a low voltage (LV) output port ...
Shenli Zou   +3 more
doaj   +1 more source

DESIGN AND TECHNOLOGICAL PROPOSALS FOR IMPROVING A SINGLE-PHASE TRANSFORMER WITH LAMINATED MAGNETIC CORE

open access: yesElectrical engineering & Electromechanics, 2020
Goal. The purpose of the work is to analyze the features and substantiate the advantages of the spatial radial electromagnetic system of a single-phase transformer with rectangular sections of the rods of a charged magnetic circuit.
A. A. Stavinskiy, A. M. Tsyganov
doaj   +1 more source

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