Now showing items 1-20 of 21

  • ADC module built for an ocean bottom seismometer (OBS) 

    Carreras Pons, Normandino; Shariat Panahi, Shahram; Manuel Lázaro, Antonio (2010-12-01)
    Article
    Open Access
    This paper presents the new data acquisition system designed for autonomous Ocean Bottom Seismometers (OBS) to study the earth dynamics and internal structure. This part is the responsible to acquire the signals from ...
  • ADC Quantization Requirements 

    Riba Sagarra, Jaume; Lamarca Orozco, M. Meritxell; Rey Micolau, Francesc; Sala Álvarez, José; Vázquez Grau, Gregorio; Villares Piera, Nemesio Javier (2000-06)
    External research report
    Open Access
    In this document, we analyze the impact of the quantization at the input of the demultiplexer. The required number of bits of the Analog-to-Digital-Converter (ADC) is obtained, along with the corresponding quantization losses.
  • Analog Signal Adquisition and FFT Application for a Linux Embeded System Lab 

    Montes O'connor, Carlos Jesús (Universitat Politècnica de Catalunya, 2014-05)
    Master thesis (pre-Bologna period)
    Open Access
    [ANGLÈS] The project goal is to design a platform based on an existing HW/SW embeded Linux system containing a FPGA, within an academic environment. To accomplish that objective, a specific application for signal Adquisition ...
  • Analysis and design of a digital proportional-resonant controller for a single-phase bidirectional LC rectifier 

    Arroyo Giner, Juan José (Universitat Politècnica de Catalunya, 2018-01)
    Master thesis
    Open Access
    A boost high-power-factor ac/dc converter is designed. The converter presents a bi-directional power flow capability. A bias capacitor connected in series with the ac source provides a dc voltage boost at the input. ...
  • Analysis and design of a terminal sliding mode control applied to a step-down power converter 

    Masclans Serrat, Núria (Universitat Politècnica de Catalunya, 2019-06-25)
    Bachelor thesis
    Open Access
    Generally, step-down converters are controlled by a linear control called average model. This control technique results in a system behavior highly dependent on the working point. Therefore, non-linear techniques have been ...
  • Data conversion frontends for area-constrained applications: the wireless network-on-chip case 

    López Lao, Alejandro (Universitat Politècnica de Catalunya, 2018-05-23)
    Bachelor thesis
    Open Access
    Multicore architectures cover a wide technologic spectrum and it is on the vanguard for an unlimited number of applications. As technology keeps growing and number of cores per chip increases (reaching what nowadays is ...
  • Desarrollo y mejoramiento de un dispositivo capaz de monitorear niveles de ozono troposférico 

    Martínez Basurto, Sebastián (Universitat Politècnica de Catalunya, 2018-07)
    Bachelor thesis
    Open Access
    In a world in which political, economic, social and cultural circumstances demand a bigger knowledge and awareness of the surrounding reality, it becomes necessary an environmental culture that encourages more spaces of ...
  • Design, implementation, and verification of an FPGA-based control system for a permanent-magnet motor drive built upon a three-phase four-level active-clamped inverter 

    García Rojas, Gabriel (Universitat Politècnica de Catalunya, 2015-05)
    Master thesis
    60 months embargo
    [ANGLÈS] The present work summarizes the work and knowledge acquired by the author during its Master’s Thesis in the Research Group in Power Electronics, GREP. The development is based on the Multilevel Active-Clamped (MAC) ...
  • Design of a 16-bit 50-kHz low-power SC delta-sigma modulator for ADC in 0.18um CMOS technology 

    Cisneros Fernández, Jose Agustin (Universitat Politècnica de Catalunya, 2016-07-18)
    Master thesis
    Open Access
    A general purpose 16 Bits Sigma-Delta modulator ADC for double precision audio 50 kHz bandwidth, targeted for Low-power operation, involving no additional digital circuit compensation, no bootstrapping techniques and ...
  • Diseño de la puesta en paralelo para inversores de potencia monofásicos controlados con DSP 

    Galindo Lorente, Sergi (Universitat Politècnica de Catalunya, 2009-06)
    Master thesis (pre-Bologna period)
    Restricted access - author's decision
    El presente proyecto realiza un estudio y analisis sobre distintos métodos para la implementación de la paralelización de inversores monofásicos. Los métodos planteados para el estudio han sido la comunicación mediante ...
  • Disseny i implementació d'un sistema de pesatge digital 

    Aibar Sala, Santiago (Universitat Politècnica de Catalunya, 2016-09-21)
    Master thesis (pre-Bologna period)
    120 months embargo
    For many years the world of weighing has based on using resistive load cells, mainly made of strain gauges in a bridge configuration. This gauges are connected to electronic systems that provide energy to the bridge and ...
  • Entrenador digital para convertidores en aplicaciones docentes 

    Fiol Ramon, Josep; Moreno Mangas, Juan Alberto (Universitat Politècnica de Catalunya, 2011-06)
    Master thesis (pre-Bologna period)
    Open Access
    Este proyecto trata de diseñar y crear un convertidor estático de potencia capaz de controlar distintos accionamientos en aplicaciones docentes. Sería como tener varios convertidores en uno dependiendo de las ...
  • Estudi del consum energètic de convertidors analògic-digital integrats en microcontroladors 

    Singh, Mandeep; Merchan Holmes, Jose Francisco (Universitat Politècnica de Catalunya, 2019-07-29)
    Bachelor thesis
    Open Access
    Microcontrollers are programmable integrated circuits designed to control any particular application. Nowadays are present in many of the electronic devices that surround us: at work, at home and in our life in general. ...
  • Estudio de sistemas de beamforming analógico-digitales 

    Piqué Muntané, Ignasi (Universitat Politècnica de Catalunya, 2018-07-02)
    Bachelor thesis
    Open Access
    Covenantee:  Universitat Carlos III de Madrid
    En el presente proyecto se han estudiado y simulado sistemas que implementen técnicas propias del 5G. Debido a que el mundo de las comunicaciones móviles está en plena revolución con la instauración de esta nueva tecnología, ...
  • Estudio e implementación de un convertidor analógico digital y digital analógico Sigma delta 

    Castro Rios, Ramiro Saito (Universitat Politècnica de Catalunya, 2015-10)
    Bachelor thesis
    Open Access
    Este proyecto está basado en el estudio de convertidores digital analógico y analógico digital sigma delta. En un principio se estudian los conocimientos previos sobre la conversión analógico-digital y digital-analógico, ...
  • FPGA-based control system for a chemical gas sensor 

    Salamó Palau, Martí (Universitat Politècnica de Catalunya, 2019-06)
    Bachelor thesis
    12 months embargo
    The objective of this thesis is to design, develop and validate a digital system which controls a metal-oxide (MOX) chemical gas sensor. The system is based on sigma-delta modulation and implements a control of the surface ...
  • Placa de desarrollo con microcontrolador, lógica programable, comunicaciones y conversión AD/DA 

    Cáceres Calvente, Rafael (Universitat Politècnica de Catalunya, 2017-05)
    Master thesis (pre-Bologna period)
    Restricted access - author's decision
    The aim of the project is the design, assembly and testing of a high-speed data acquisition system for measuring ultrasonic signals in range of 5 MHz, which meets the needs of the Sensor Systems Group (GSS). In addition, ...
  • Reducción de la frecuencia de muestreo en los conversores ADC y DAC usados en predistorsionadores digitales 

    Montoro López, Gabriel; Wang, Teng; López Bueno, David; Ruiz, María Nieves; García, José Angel; Gilabert Pinal, Pere Lluís (Unión Científica Internacional de Radio (URSI), 2015)
    Conference report
    Restricted access - publisher's policy
    With the increasing demands for higher data rate, wider signal bandwidth is required, and this imposes high sampling rate converters in the communications equipment. This paper provides and analyzes experimental results ...
  • Signal acquisition and pre-processing subsystem for CW-FM radars 

    Hernández Burgos, Sergi (Universitat Politècnica de Catalunya, 2018-07)
    Bachelor thesis
    120 months embargo
    High resolution radar performance is critically affected by the quality of signal acquisition and first level processing subsystems which implement a filter mached to the transmitted waveform. In the case of CW-FM radars, ...
  • Space vector modulation technique for 3-level NPC converter with constant switching frequency 

    Ouerdani, Imen; Ben Abdelghani, Hafedh; Ben Abdelghani, Afef Bennani; Montesinos Miracle, Daniel; Slama-Belkhodja, Ilhem (HINDAWI, 2016-07-15)
    Article
    Open Access
    This paper presents a simple Space Vector Modulation (SVM) methodology for a three-level NPC converter. Nearest three vectors (NTV) and corresponding duty cycles are deduced through simple generic mathematical expressions. ...