Browsing by Subject "Circuits electrònics"

Now showing items 1-20 of 104

    • A Divide-and-Conquer Approach for Cell Routing using Litho-friendly Layouts 

      Vidal Obiols, Alexandre (Universitat Politècnica de Catalunya, 2013-06-17)
      Master thesis (pre-Bologna period)
      Restricted access - confidentiality agreement

    • A hands-on approach to differential circuit measurements 

      Pallàs-Areny, Ramon; Casas Piedrafita, Óscar (Elsevier, 2007-01)
      Article
      Open Access
      Electronic engineering is showing a definite trend towards differential circuits. However, most measurement instruments are single-ended. Consequently, engineering graduates often lack the skills to perform correct ...

    • A novel low-cost smart leaf wetness sensor 

      Hornero Ocaña, Gemma; Gaitán Pitre, Jorge Eliécer; Serrano Finetti, Roberto Ernesto; Casas Piedrafita, Óscar; Pallàs-Areny, Ramon (2017-12-01)
      Article
      Open Access

    • A novel variation-tolerant 4T-DRAM cell with enhanced soft-error tolerance 

      Ganapathy, Shrikanth; Canal Corretger, Ramon; Alexandrescu, Dan; Costenaro, Enrico; González Colás, Antonio María; Rubio Sola, Jose Antonio (IEEE Computer Society Publications, 2012)
      Conference report
      Restricted access - publisher's policy
      In view of device scaling issues, embedded DRAM (eDRAM) technology is being considered as a strong alternative to conventional SRAM for use in on-chip memories. Memory cells designed using eDRAM technology in addition ...

    • Aging in CMOS RF linear power amplifiers: an experimental study 

      Aragonès Cervera, Xavier; Barajas Ojeda, Enrique; Crespo Yepes, Albert; Mateo Peña, Diego; Rodríguez Martínez, Rosana; Martin Martínez, Javier; Nafría Maqueda, Montserrat (IEEE Microwave Theory and Techniques Society, 2021-02-01)
      Article
      Open Access
      An extensive experimental analysis of the hot carrier injection (HCI) and bias temperature instability (BTI) aging effects on RF linear power amplifiers (PAs) is presented in this article. Two different 2.45-GHz PA topologies ...

    • Alternative memristor-based interconnect topologies for fast adaptive synchronization of chaotic circuits 

      Escudero López, Manuel; Vourkas, Ioannis; Rubio Sola, Jose Antonio (2020-09)
      Article
      Open Access
      Resistive switching devices (memristors) constitute an emerging device technology promising for a vari- ety of applications that are currently being studied. In this context, the use of memristors as coupling el- ements ...

    • An experiment of planning manual work taking account of learning and forgetting 

      Ibáñez Luján, Toni; Sánchez Martínez, M. Carmen (Universitat Politècnica de Catalunya, 2007-06-29)
      Master thesis (pre-Bologna period)
      Open Access
      Avui en dia, les indústries es troben exposades freqüentment a canvis en el volum de producció, en els productes que es fabriquen i a canvis de tecnologies als processos que desenvolupen, per tal de millorar la productivitat. ...

    • Analysis of body bias and RTN-induced frequency shift of low voltage ring oscillators in FDSOI technology 

      Barajas Ojeda, Enrique; Aragonès Cervera, Xavier; Mateo Peña, Diego; Moll Echeto, Francisco de Borja; Rubio Sola, Jose Antonio; Martin Martínez, Javier; Rodríguez Martínez, Rosana; Porti Pujal, Marc; Nafría Maqueda, Montserrat; Castro López, Rafael; Roca Moreno, Elisenda; Fernandez, Francisco V. (Institute of Electrical and Electronics Engineers (IEEE), 2018)
      Conference report
      Restricted access - publisher's policy
      Electronic circuits powered at ultra low voltages (500 mV and below) are desirable for their low energy and power consumption. However, RTN (Random Telegraph Noise)-induced threshold voltage variations become very significant ...

    • Body bias generator design for ultra-low voltage applications in FDSOI technology 

      Palma Carmona, Kenneth (Universitat Politècnica de Catalunya, 2019-10-14)
      Master thesis
      Open Access
      This thesis presents the derivation and validation processes of analytical models describing the dynamic and steady-state behaviors of CC-CP switched capacitor converters. The effects of FDSOI components in the implementation ...

    • BPF-based thermal sensor circuit for on-chip testing of RF circuits 

      Altet Sanahujes, Josep; Barajas Ojeda, Enrique; Mateo Peña, Diego; Billong, Alexandre; Aragonès Cervera, Xavier; Perpiñà Gilabet, Xavier; Reverter Cubarsí, Ferran (Multidisciplinary Digital Publishing Institute (MDPI), 2021-01)
      Article
      Open Access
      A new sensor topology meant to extract figures of merit of radio-frequency analog integrated circuits (RF-ICs) was experimentally validated. Implemented in a standard 0.35 µm complementary metal-oxide-semiconductor (CMOS) ...

    • Capacitorless low-dropout regulator for power management applications 

      Martínez García, Herminio; García Vílchez, Encarnación (2021)
      Conference report
      Open Access
      This article aims to present the design of a 4.5-V, 450-mA low drop-out (LDO) voltage linear regulator based on a two-stage cascoded operational transconductance amplifier (OTA) as error amplifier. The aforementioned ...

    • Capacitorless voltage regulator devoted to power management 

      Martínez García, Herminio; García Vílchez, Encarnación (Vienna University of Technology, 2020)
      Conference report
      Open Access
      This article aims to present the design of a 4.5-V, 450-mA low drop-out (LDO) voltage linear regulator based on a two-stage cascoded operational transconductance amplifier (OTA) as error amplifier. The aforementioned ...

    • Circuit interfície per la connexió de la tarjeta DSP EVM TMS320C6701 

      Gil Moltó, Pere Joan (Universitat Politècnica de Catalunya, 2006-06)
      Master thesis (pre-Bologna period)
      Restricted access - author's decision

    • Circuits i dispositius electrònics : fonaments d'electrònica 

      Prat Viñas, Lluís; Bragós Bardia, Ramon; Chávez Domínguez, Juan Antonio; Fernández Chimeno, Mireya; Jiménez Serres, Vicente; Madrenas Boadas, Jordi; Navarro González, Eduardo; Salazar Soler, Jorge (Edicions UPC, 1998)
      Book
      Open Access
      L'obra ha estat concebuda de forma autocontinguda, de manera que la pugui seguir qualsevol lector que no tingui més coneixements previs que els que hagi adquirit durant l'etapa preuniversitària. La primera part del llibre ...

    • Com disminuir la potència dinàmica dissipada per un circuit digital reduint la tensió d'alimentació i no perdent prestacions? 

      Altet Sanahujes, Josep (Departament d'Enginyeria Electrònica, 2010-03-22)
      Audiovisual
      Open Access

    • Compact formulation for exact analysis of nonideal SC circuits 

      Sanz Postils, Margarita; Puerta Notario, Antonio (Institution of Electrical Engineers, 1987-05)
      Article
      Restricted access - publisher's policy
      A systematic analysis procedure to obtain closed-form expressions for the z-domain transfer functions of SC circuits with finite GB product op-amps is presented. This method allows exact frequential analysis of a general ...

    • Comparison of linear and widely linear processing in MIMO-FBMC systems 

      Caus López, Marius; Pérez Neira, Ana Isabel (VDE Conference Publications, 2013)
      Conference report
      Restricted access - publisher's policy
      This paper carries out a comparison between two multi-stream techniques aimed for filter bank multicarrier (FBMC) systems based on the offset quadrature amplitude modulation (OQAM). The first option performs linear processing ...

    • Comprehensive analysis of hexagonal sigma-delta modulations for three-phase high-frequency VSC based on wide-bandgap semiconductors 

      Lumbreras Carrasco, David; Zaragoza Bertomeu, Jordi; Berbel Artal, Néstor; Mon González, Juan; Galvez Moreno, Eduardo; Collado Escolano, Alfonso (Institute of Electrical and Electronics Engineers (IEEE), 2021-06)
      Article
      Open Access
      The efficiency of wide-bandgap (WBG) power converters can be greatly improved using high-frequency modulation techniques. This article proposes using single-loop and double-loop hexagonal sigma-delta (H-S¿ and DH-S¿, ...

    • Constant false alarm rate control for frecuency hopping Spread Spectrum Systems 

      Agustí Comes, Ramon; Olmos Bonafé, Juan José (1989)
      Conference report
      Open Access
      A control scheme suitable for setting the false alarm rate to a fixed value in frequency hopping spread spectrum communications is proposed. the scheme performance is determined in the presence of partial band interference. ...

    • Control theory applied to the design of AGC circuits 

      Bertran Albertí, Eduardo; Palacin, J M (1991)
      Conference report
      Open Access
      Applications of control theory in the design of automatic gain control (AGC) circuits are presented. A general model for AGC circuits is presented, and an equivalent linear system is proposed. Its behavior is compared with ...