Browsing by Subject "Electric circuits"

Now showing items 1-20 of 49

    • A computer model for teaching the dynamic behavior of AC contactors 

      Riba Ruiz, Jordi-Roger; García Espinosa, Antonio; Romeral Martínez, José Luis (2010-05)
      Article
      Open Access
      AC-powered contactors are extensively used in industry in applications such as automatic electrical devices, motor starters, and heaters. In this work, a practical session that allows students to model and simulate the ...

    • A cyclo-dissipativity framework for power factor compensation of electrical circuits 

      García Canseco, Eloísa; Griñó Cubero, Robert; Ortega, Romeo; Salichs Vivancos, Miguel; Stankovic, Alexander (2005-10)
      Conference report
      Open Access
      The purpose of this paper is to bring the attention of the control community some of the aspects of the practically important, and mathematically challenging, power factor compensation problem. Our main contribution is ...

    • A local stability condition for dc grids with constant power loads 

      Arocas Pérez, José; Griñó Cubero, Robert (2017-07-01)
      Article
      Open Access
      Currently, there are an increasing number of power electronics converters in electrical grids, performing the most diverse tasks, but most of them, work as constant power loads (CPLs). This work presents a sufficient ...

    • A memristor-based quaternary memory with adaptive noise tolerance 

      Dabaghi Zarandi, Arezoo; Rubio Sola, Jose Antonio; Reza Reshadinezhad, Mohammad (Institute of Electrical and Electronics Engineers (IEEE), 2020)
      Conference report
      Restricted access - publisher's policy
      Considering the constraints of CMOS technology progress at the nano-domain, memristor technology is one of the preferred alternatives to merge with and substitute CMOS-based memory circuits. At the same time to increase ...

    • A modified partial power structure for quasi Z-source converter to improve voltage gain and power rating 

      Honarmand, Shahin; Rajaei, Amirhossein; Shahparasti, Mahdi; Luna Alloza, Álvaro; Pouresmaeil, Edris (2019-06-01)
      Article
      Open Access
      Employing partial power processing (PPP) technique for quasi Z-source converter (QZSC) a new structure of the converter is presented. Using PPP technique although eliminates electrical insolation, but permits reducing ...

    • A regenerative active clamp circuit for DC/AC converters with high-frequency isolation in photovoltaic systems 

      Rocabert Delgado, Joan; Mata Dumenjó, Montserrat; Bordonau Farrerons, José; Beristain Gimenez, Jose Antonio (2004-11-15)
      Conference lecture
      Open Access
      DC/AC converters with high-frequency isolation and bidirectional power flow are extensively used in photovoltaic power systems and small isolated power converters at low and medium power ranges. The main disadvantages ...

    • A system approach on power distribution supervisory control catalog 

      Delgado Penin, José Antonio; Serrat Fernández, Juan (Institute of Electrical and Electronics Engineers (IEEE), 1982)
      Conference report
      Open Access
      The electrical energy distribution networks need remote control systems that are centralised and integrated as far as the functions they can develop are concerned. The need for a thinking unit at the line head for managing ...

    • Analysis, design and test of a printed circuit board for environmental sensing 

      Steegmann De Mena, Ignasi (Universitat Politècnica de Catalunya, 2021-11-01)
      Master thesis
      Restricted access - author's decision
      Covenantee:   Nearby Sensors
      The objective of this thesis is to create an environmental sensing electronic board, with special emphasis on meeting all the regulatory compliances associated with a printed circuit board, which is going to have an ...

    • Anàlisi i disseny d'un equip de comunicació mitjançant la xarxa elèctrica 

      Rubió Solsona, Marc (Universitat Politècnica de Catalunya, 2021-07-06)
      Bachelor thesis
      Open Access
      Aquest treball de fi de grau, consisteix en l’anàlisi i el disseny d’un equip que es pugui comunicar a través de la xarxa elèctrica. L’equip està format per dos circuits, el circuit emissor, que és l’encarregat d’enviar ...

    • Biofilm growth monitoring 

      Izquierdo Moles, Josep (Universitat Politècnica de Catalunya, 2019-05)
      Bachelor thesis
      Open Access
      Design and develpment a "original" system and low cost to measure the variations in the oscillation frequency and damping in the point of oscillation when bacteria grow in the surface of a quartz crystal.

    • CATRENE-PANAMA WP1: integrated PA Milestone M1.3 technology, approach & system choice for home networking 

      Dufis, Cédric Yvan; Mateo Peña, Diego; Bofill, Adrià; González Jiménez, José Luis (2009-10-30)
      Research report
      Open Access

    • Centraleta modular i escalable pel control de calderes, calefacció i aigua calenta sanitària 

      Balaguer Vergé, Miquel (Universitat Politècnica de Catalunya, 2012-06-25)
      Master thesis (pre-Bologna period)
      Open Access
      En l’actualitat, els sistemes de control per a circuits de calderes, radiadors i aigua calenta sanitària tenen un inconvenient a l’hora d’instal·lar-los. Aquests sistemes de control, anomenats centraletes de regulació, ...

    • Circuitos eléctricos : problemas 

      Alabern Morera, Francesc Xavier; Font Piera, Antonio (Edicions UPC, 2006)
      Book
      Restricted access to UB, UAB, UPC, UPF, UdG, UdL, URV, UOC, BC, UVic, UJI, URL, UIC users
      La obra se ha estructurado en torno a dos grandes bloques, correspondientes al comportamiento de circuitos eléctricos en régimen permanente y su estudio en régimen dinámico o transitorio. La resolución de los circuitos ...

    • Circuits elèctrics 

      Boix Aragonès, Oriol; Rull Duran, Joan (Edicions UPC, 2001)
      Book
      Open Access
      Presentem un text de teoria de circuits pensat com a eina d'estudi per a estudiants universitaris de titulacions no elèctriques. El contingut comprèn des de circuits en corrent continu fins a sistemes trifàsics en règim ...

    • Closed-loop controller for eliminating the contact bounce in DC core contactors 

      García Espinosa, Antonio; Riba Ruiz, Jordi-Roger; Cusidó Roura, Jordi; Ortega Redondo, Juan Antonio; Romeral Martínez, José Luis (2010-09)
      Article
      Open Access
      The undesirable phenomenon of the contact bounce causes severe erosion of the contacts and, as a consequence, their electrical life and reliability are greatly reduced. On the other hand, the bounce of the armature can ...

    • Comments on "On resistor-induced thermal noise in linear circuits" 

      Vargas Drechsler, Manuel; Pallàs-Areny, Ramon (IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC, 2002-04-30)
      Working paper
      Open Access
      Correspondència referida a l'article de R. Giannetti, publicat ibid. vol.49 p.87-88

    • Corrector del factor de potencia mediante convertidor boost multifase 

      Barriocanal Escobar, Jordi (Universitat Politècnica de Catalunya, 2009-06)
      Master thesis (pre-Bologna period)
      Restricted access - author's decision
      Las fuentes de alimentación tradicionales provocan una clara disminución del factor de potencia. Es necesario encontrar un circuito que pase la corr iente alterna a corriente continua, con un ...

    • Desarrollo de un sistema de localización de alta precisión para un vehículo terrestre autónomo 

      Marín Reyes, Pablo (Universitat Politècnica de Catalunya, 2021-06)
      Bachelor thesis
      Restricted access - confidentiality agreement
      Covenantee:   Hewlett Packard Española
      In this project, the feasibility of using image-based technologies for location systems for autonomous ground vehicles has been analysed. A system based on a camera installed on a robotic mount has been developed in the ...

    • Desenvolupament d'un programa per a l'estudi sobre el disseny del circuit Steinmetz i la seva influència en les instal·lacions elèctriques 

      Riera Galceran, Sara (Universitat Politècnica de Catalunya, 2011-02)
      Master thesis (pre-Bologna period)
      Open Access
      Els sistemes elèctrics de tracció d’alta velocitat són en general càrregues monofàsiques, no lineals, fluctuants en el temps i que, en connectar-los a la xarxa trifàsica, generen desequilibris en els corrents consumits ...

    • Desenvolupament d’un programa per a l’estudi de conceptes d’electrotècnia 

      Surroca Van Zanten, Elsa (Universitat Politècnica de Catalunya, 2019-10-09)
      Bachelor thesis
      Restricted access - author's decision
      L’electrotècnia és l’estudi dels circuits elèctrics que permet conèixer fenòmens elèctrics, el comportament dels circuits estudiats, preveure el seu desenvolupament i utilitzar aquest estudi amb propòsits científics o ...