e-CAT - Circuits i Transductors Electrònics: Enviaments recents

Ara es mostren els items 13-24 de 74

    • Nonlinear dynamic analysis of pendulum-type Wave Energy Converter for low-power marine monitoring applications 

      Carandell Widmer, Matias; Toma, Daniel; Alevras, Panagiotis; Gasulla Forner, Manuel; Río Fernandez, Joaquín del; Barjau Condomines, Ana (European Wave and Tidal Energy Conference (EWTEC), 2021)
      Text en actes de congrés
      Accés obert
      A model for a double pendulum Wave Energy Converter (WEC) for drifter applications has been developed and validated. The WEC is composed by an articulated arm, a gear train, a flywheel, a one-way bearing and a DC generator. ...

    • Real-time wave monitoring on coastal areas using LPWAN-based embedded systems 

      Carandell Widmer, Matias; Toma, Daniel; Artero Delgado, Carola; Gasulla Forner, Manuel; Río Fernandez, Joaquín del (2021)
      Text en actes de congrés
      Accés obert
      A new embedded system is presented for real-time wave monitoring on coastal areas using SigFox communication. SigFox is a Low-Power Wide-Area Network technology that has been rarely used in coastal marine monitoring. The ...

    • Impact on the wave parameters estimation of a kinetic energy harvester embedded into a drifter 

      Carandell Widmer, Matias; Toma, Daniel; Pinto, José P.; Gasulla Forner, Manuel; Río Fernandez, Joaquín del (Institute of Electrical and Electronics Engineers (IEEE), 2020)
      Comunicació de congrés
      Accés obert
      The effect of a Kinetic Energy Harvester (KEH) on the wave parameters estimation at a WAVY Ocean (WO) drifter is being studied. An algorithm has been developed to calculate the wave parameters from the Inertial Measuring ...

    • A novel general-purpose theorem for the analysis of linear circuits 

      Reverter Cubarsí, Ferran; Gasulla Forner, Manuel (Institute of Electrical and Electronics Engineers (IEEE), 2021-01-01)
      Article
      Accés obert
      A novel general-purpose theorem for the analysis of linear circuits is stated and proven in this brief. When applying the proposed theorem, any current (voltage) of interest is determined by finding first an equivalent ...

    • A Simple direct microcontroller interface for capacitively-coupled resistive sensors 

      Areekath, Lakshmi; George, Boby; Reverter Cubarsí, Ferran (Institute of Electrical and Electronics Engineers (IEEE), 2020)
      Text en actes de congrés
      Accés obert
      A novel approach to interface capacitively-coupled resistive sensors directly to a microcontroller is presented in this paper. The existing schemes for the measurement of the resistance of a sensing element ...

    • Using a digital timer to demodulate AM triangular signals for sensor applications 

      Reverter Cubarsí, Ferran; Gasulla Forner, Manuel (Institute of Electrical and Electronics Engineers (IEEE), 2020)
      Text en actes de congrés
      Accés obert
      A timer-based demodulator for low-frequency amplitude-modulated (AM) triangular signals coming from sensor circuits is presented in this work. The proposed circuit does not require a rectifier/mixer, a ...

    • On measuring power efficiency in DC-DC converters at light load currents 

      Gasulla Forner, Manuel; Reverter Cubarsí, Ferran (Institute of Electrical and Electronics Engineers (IEEE), 2020)
      Text en actes de congrés
      Accés obert
      This paper tackles the problematic issue of measuring the efficiency at DC-DC converters operating in PFM mode, which are used for light loads such as sensor nodes. Such converters present a pulsed input current, which ...

    • A closed-loop capacitance-to-frequency converter for single-element and differential capacitive sensors 

      Areekath, Lakshmi; George, Boby; Reverter Cubarsí, Ferran (2020-11-01)
      Article
      Accés obert
      A novel closed-loop switched-capacitor(SC) capacitance-to-frequency converter (CFC) is presentedin this paper. The proposed CFC is capable of measuring from either a single-element or a differential capacitive sensor, ...

    • LED-Based Wake-Up circuit for microcontrollers 

      Ripoll Vercellone, Edgar; Reverter Cubarsí, Ferran; Gasulla Forner, Manuel (2020-07-15)
      Article
      Accés obert
      This article proposes, analyzes, and tests a wake-up circuit for a microcontroller (MCU) that uses a light-emitting diode (LED), operating as a photodetector, illuminated by a smartphone flashlight. The wake-up circuit ...

    • Optimum MPPT strategy for low-power pendulum-type wave energy converters 

      Carandell Widmer, Matias; Toma, Daniel; Río Fernandez, Joaquín del; Gasulla Forner, Manuel (Institute of Electrical and Electronics Engineers (IEEE), 2020)
      Comunicació de congrés
      Accés obert
      Maximum Power Point Tracking (MPPT) techniques for low-power pendulum-type Wave Energy Converters were evaluated. A Kinetic Energy Harvester previously designed, together with a Power Management Unit, were tested on a ...

    • Demodulating AM square signals via a digital timer for sensor applications 

      Reverter Cubarsí, Ferran; Gasulla Forner, Manuel (2020-05-01)
      Article
      Accés obert
      This paper evaluates theoretically and experimentally the performance of a timer-based demodulator applied to low-frequency amplitude-modulated (AM) square signals coming from sensor circuits. The demodulator extracts the ...

    • Toward non-CPU activity in low-power MCU-Based measurement systems 

      Reverter Cubarsí, Ferran (2020-01-01)
      Article
      Accés obert
      This article evaluates the benefits of having peripheral-triggered peripherals in a microcontroller unit (MCU) intended for low-power sensor applications. In such an architecture, the functionality is moved from the central ...