Exploració per tema "Interferència electromagnètica"
Ara es mostren els items 1-20 de 51
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A grounded-output 5-switch bipolar buck-boost converter topology for switching power amplifiers
(IEEE, 2011)
Text en actes de congrés
Accés restringit per política de l'editorialThis work presents a switching converter topology which can boost and step down the supply voltage and can deliver both positive and negative voltages to a grounded load (bipolar converter topology with non-floating output). ... -
A measurement system for radiated transient electromagnetic interference based on general purpose instruments
(Institute of Electrical and Electronics Engineers (IEEE), 2015)
Text en actes de congrés
Accés obertThis paper presents a measurement system intended to be used to assets the radiated electromagnetic interference (EMI) in both time and frequency domains. In order to keep the measurement setup as accessible and practical ... -
A pre-correlation RFI mitigation algorithm for L-band interferometric radiometers
(Institute of Electrical and Electronics Engineers (IEEE), 2021)
Text en actes de congrés
Accés obertRadio Frequency Interference (RFI) is a major concern for both real and synthetic aperture radiometers. After the lessons learnt from SMOS, ESA is preparing the next generation of L-band interferometric radiometers with ... -
Alternative conducted emission measurements on mains without LISNs
(2015-12-01)
Article
Accés obertConducted emission tests are always performed by the use of LISNs in laboratories in accordance with CISPR22, CISPR11 and other similar standards. However, it is not always possible to use LISNs because of some limitations. ... -
Analysis of a gate-driving technique for enhancing the GaN power transistors performance
(Institute of Electrical and Electronics Engineers (IEEE), 2023)
Text en actes de congrés
Accés obertThis paper presents an analysis of a gate-driving technique for enhancing the switching performance of gallium nitride (GaN) power transistors. The technique consists of modifying the Pulse Width Modulated (PWM) signal ... -
Analysis of radiated EMI in single switch ZVS applied to induction cooking
(2019)
Comunicació de congrés
Accés restringit per política de l'editorialIn this paper the radiated EMI generated by a single switch ZVS inverter in the non-optimal mode operating conditions, including a current peak reduction methods are analysed. These methods consist of applying a burst pulse ... -
APD outdoors time-domain measurements for impulsive noise characterization
(Institute of Electrical and Electronics Engineers (IEEE), 2017)
Text en actes de congrés
Accés obertA novel measurement and post-processing technique for estimating if impulsive noise is capable of degrading the performance of digital communication systems (DCS) is presented. It is based on the well-known capability of ... -
Benefits of full time-domain EMI measurements for large fixed installation
(2016)
Text en actes de congrés
Accés obertIt is difficult to properly evaluate the electromagnetic disturbances generated by large fixed installations because of, i.e., the background noise, unsteady emissions and transient interferences. Those challenging EMC ... -
Common mode EMI model for a direct matrix converter
(IEEE Press. Institute of Electrical and Electronics Engineers, 2011-11)
Article
Accés restringit per política de l'editorialThis paper presents an electromagnetic interference (EMI) model to evaluate the conducted common mode (CM) disturbances produced by matrix converters (MCs). The model is based on obtaining a high frequency (HF) equivalent ... -
Common mode model of matrix converter
(IEEE Press. Institute of Electrical and Electronics Engineers, 2011)
Text en actes de congrés
Accés restringit per política de l'editorialThis paper deals with the validation of an EMI model to predict electromagnetic interferences (EMI) produced by direct AC/AC matrix converters (MC). The method is based on obtaining a high frequency equivalent circuit, ... -
Contribución al estudio de las interferencias electromagnéticas conducidas en circuitos integrados
(Universitat Politècnica de Catalunya, 2015-04-28)
Tesi
Accés obertThis thesis is focused on the conducted electromagnetic Interference generated at Integrated Circuit (IC) Level. Recently, several electrical models have been proposed in order to describe EMI at IC level, but they have ... -
Contribution to conducted EMI reduction in multiconverter topology
(2009-11)
Text en actes de congrés
Accés obertThis paper contributes to the conducted EMI reduction generated by switched power converters operating in multiconverter arrangement. The EMI reduction is achieved by means of the combination of two techniques: interleaving ... -
Control of the back-end and positioning systems of the MERITXELL radiometer
(Universitat Politècnica de Catalunya, 2017-01)
Treball Final de Grau
Accés obertThe aim of this project was the implementation of a software to position and obtain the desired measurements by a radiometer called MERITXELL. To satisfy the goals, this project was divided in three blocks (radiometer ... -
Coupled interleaved multicellular parallel converters operated under switching frequency modulation
(2014)
Text en actes de congrés
Accés restringit per política de l'editorialThe Coupled Interleaved Multicellular Parallel (CIMP) topology is the subject of intense research because of its advantages in terms of systems integration, power density increase, low level of EMI emissions and dynamic ... -
Desarrollo experimental para la evaluación de interferencias electromagnéticas en el laboratorio
(Universitat Politècnica de Catalunya, 2014-03-13)
Projecte Final de Màster Oficial
Accés obert[ANGLÈS] The project tries to teach the basic aspects to bear in mind at the moment of designing hardware to minimize the problems related to electromagnetic interference. For it the knowledge acquired in Electromagnetic ... -
Design and validation of a platform for electromagnetic fault injection
(Institute of Electrical and Electronics Engineers (IEEE), 2018)
Text en actes de congrés
Accés obertSecurity is acknowledged as one of the main challenges in the design and deployment of embedded circuits. Devices need to operate on-the-field safely and correctly, even when at physical reach of potential adversaries. One ... -
Differential and common-mode filters based on metamaterial resonators
(2013)
Comunicació de congrés
Accés obertTwo different techniques based on metamaterials for mitigating both the differential and common-mode propagation in differential signaling are addressed. The proposed filters are implemented by means of complementary ... -
Differential- and common-mode radiofrequency interference filters based on complementary split ring resonators: a conduction and radiation impact analysis
(2015-01-22)
Article
Accés obertThis paper aims to analyse the design techniques of differential transmission lines loaded with metamaterials. Specifically, complementary split-ring resonators were etched on the ground plane of a microstrip transmission ... -
Discontinuous tests for EMC disturbances in the time domain
(Universitat Politècnica de Catalunya, 2021-09-16)
Projecte Final de Màster Oficial
Accés obertMeasurement of electromagnetic interference has been performed in the past by EMI receivers operating in the frequency domain. Particularly, to measure discontinuous disturbances (clicks), an EMI receiver connected to a ... -
Dynamic performance evaluation of full time domain EMI measurement systems
(Institute of Electrical and Electronics Engineers (IEEE), 2018)
Text en actes de congrés
Accés obertThis paper presents the evaluation of the performance of Full Time Domain Electromagnetic Interference measurement systems in terms of the noise figure, the linearity, the dynamic range, the voltage standing wave ratio and ...