Browsing by Subject "Interferència electromagnètica"

Now showing items 1-20 of 46

    • A grounded-output 5-switch bipolar buck-boost converter topology for switching power amplifiers 

      García Tormo, Albert; Poveda López, Alberto; Alarcón Cot, Eduardo José; Guinjoan Gispert, Francisco (IEEE, 2011)
      Conference report
      Restricted access - publisher's policy
      This 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 

      Azpúrua Auyanet, Marco Aurelio; Pous Solà, Marc; Silva Martínez, Fernando (Institute of Electrical and Electronics Engineers (IEEE), 2015)
      Conference report
      Open Access
      This 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 

      Querol Borràs, Jorge; Camps Carmona, Adriano José; Pérez Portero, Adrián; Oliva, Roger; Onrubia Ibáñez, Raul; Ramirez Martinez, Juan Ignacio; Zurita Campos, Alberto M.; Suess, Martin; Martín Neira, Manuel (Institute of Electrical and Electronics Engineers (IEEE), 2021)
      Conference report
      Open Access
      Radio 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 

      Pous Solà, Marc; Silva Martínez, Fernando (2015-12-01)
      Article
      Open Access
      Conducted 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 radiated EMI in single switch ZVS applied to induction cooking 

      Mon González, Juan; Lamich Arocas, Manuel; Bernal Ruiz, Carlos (2019)
      Conference lecture
      Restricted access - publisher's policy
      In 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 

      Pous Solà, Marc; Azpúrua Auyanet, Marco Aurelio; Silva Martínez, Fernando (Institute of Electrical and Electronics Engineers (IEEE), 2017)
      Conference report
      Open Access
      A 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 

      Pous Solà, Marc; Azpúrua Auyanet, Marco Aurelio; Silva Martínez, Fernando (2016)
      Conference report
      Open Access
      It 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 

      Espina Masramon, Jorge; Balcells Sendra, Josep; Arias Pujol, Antoni; Ortega García, Carlos (IEEE Press. Institute of Electrical and Electronics Engineers, 2011-11)
      Article
      Restricted access - publisher's policy
      This 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 

      Espina Masramon, Jorge; Balcells Sendra, Josep; Ortega García, Carlos; Arias Pujol, Antoni; de Lillo, Liliana; Empringham, Lee (IEEE Press. Institute of Electrical and Electronics Engineers, 2011)
      Conference report
      Restricted access - publisher's policy
      This 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 

      Berbel Artal, Néstor (Universitat Politècnica de Catalunya, 2015-04-28)
      Doctoral thesis
      Open Access
      This 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 

      Mon González, Juan; González Díez, David; Gago Barrio, Javier; Balcells Sendra, Josep; Fernández García, Raúl; Gil Galí, Ignacio (2009-11)
      Conference report
      Open Access
      This 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 

      Gómez López, José Javier (Universitat Politècnica de Catalunya, 2017-01)
      Bachelor thesis
      Open Access
      The 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 

      Mon González, Juan; González Díez, David; Gautier, Cirylle; Labrousse, Denis; Costa, François (2014)
      Conference report
      Restricted access - publisher's policy
      The 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 

      Jiménez Pérez, Javier (Universitat Politècnica de Catalunya, 2014-03-13)
      Master thesis
      Open Access
      [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 

      Balasch, Josep; Arumi Delgado, Daniel; Manich Bou, Salvador (Institute of Electrical and Electronics Engineers (IEEE), 2018)
      Conference report
      Open Access
      Security 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 

      Gil Galí, Ignacio; Fernández García, Raúl (2013)
      Conference lecture
      Open Access
      Two 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 

      Gil Galí, Ignacio; Fernández García, Raúl (2015-01-22)
      Article
      Open Access
      This 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 

      Rendón Vélez, Simón (Universitat Politècnica de Catalunya, 2021-09-16)
      Master thesis
      Open Access
      Measurement 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 

      Azpúrua Auyanet, Marco Aurelio; Pous Solà, Marc; Fernández Chimeno, Mireya; Silva Martínez, Fernando (Institute of Electrical and Electronics Engineers (IEEE), 2018)
      Conference report
      Open Access
      This 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 ...

    • Efectos de las interferencias electromagnéticas en la operativa de drones 

      Vallhonrat Blanco, Laura (Universitat Politècnica de Catalunya, 2017-09-14)
      Bachelor thesis
      Open Access
      Covenantee:   Hemav
      Companies that work with drones often encounter electromagnetic compatibility problems when flying near communication antennas. This document aims to characterize and measure the type of waves that cause interferences and ...