Exploració per autor "Gasulla Forner, Manuel"
Ara es mostren els items 60-79 de 88
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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 obertThe 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 ... -
Improving the efficiency of PV low-power processing circuits by selecting an optimal inductor current of the DC/DC converter
Reverter Cubarsí, Ferran; Gasulla Forner, Manuel (2014)
Altres
Accés obertIn the context of autonomous sensors powered by small-size photovoltaic (PV) panels, this work analyses how the efficiency of DC/DC-converter-based power processing circuits can be improved by an appropriate selection of ... -
LED-Based Wake-Up circuit for microcontrollers
Ripoll Vercellone, Edgar; Reverter Cubarsí, Ferran; Gasulla Forner, Manuel (2020-07-15)
Article
Accés obertThis 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 ... -
Microcontroller-based interface circuit for inductive sensors
Kokolanski, Zivko; Jordana Barnils, José; Gasulla Forner, Manuel; Dimcev, Vladimir; Reverter Cubarsí, Ferran (2014)
Altres
Accés obertThis work proposes a fully-digital interface circuit for the measurement of inductive sensors using a low-cost microcontroller (µC) and without any intermediate active circuit. Apart from the µC and the sensor, the circuit ... -
Noniterative algorithms for electrical resistivity imaging applied to subsurface local anomalies
Gasulla Forner, Manuel; Pallàs-Areny, Ramon (Institute of Electrical and Electronics Engineers, 2005-12)
Article
Accés obertIn this paper, we compare five noniterative (one-step) algorithms for two-dimensional electrical resistivity imaging applied to the location of subsurface local anomalies. Here, we analyze the performance of two backprojection ... -
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 obertA 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. ... -
Novel and low-cost temperature compensation technique for piezoresistive pressure sensors
Reverter Cubarsí, Ferran; Horak, Goran; Bilas, Vedran; Gasulla Forner, Manuel (2009)
Comunicació de congrés
Accés obertThis paper proposes a low-cost technique to compensate for the temperature dependence of piezoresistive pressure sensors configured in a Wheatstone bridge. The sensor is treated as a resistive circuit and three equivalent ... -
Obtención de imágenes de la distribución de impedancia eléctrica del subsuelo. Aplicación a la detección de objetos locales
Gasulla Forner, Manuel (Universitat Politècnica de Catalunya, 1999-04-09)
Tesi
Accés obertEl objetivo de este trabajo es la obtención de imágenes de la distribución de impedancia eléctrica en el subsuelo a partir de medidas realizadas desde la superficie. El estudio se centra en la localización de objetos locales ... -
Occupancy and belt detection in removable vehicle seats via inductive power transmission
Albesa Querol, Joan Miquel; Gasulla Forner, Manuel (2015-08)
Article
Accés obert -
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 obertThis 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 ... -
On the common mode response of fully differential circuits
Gasulla Forner, Manuel; Casas Piedrafita, Óscar; Pallàs-Areny, Ramon (Institute of Electrical and Electronics Engineers, 2000)
Text en actes de congrés
Accés obertDifferential circuits are often described by their differential gain and common mode rejection ratio (CMRR). This approach, however, neglects the effect that the common mode signal has on the transient response and stability ... -
Optimal inductor current in boost DC/DC converters operating in burst mode under light-load conditions
Reverter Cubarsí, Ferran; Gasulla Forner, Manuel (2016-01-01)
Article
Accés obertThis letter analyzes how the efficiency of boost dc/dc converters operating in burst mode under light-load conditions can be improved by an appropriate selection of the inductor current that transfers energy from the input ... -
Optimal Inductor Current in Boost DC/DC Converters Regulating the Input Voltage Applied to Low-Power Photovoltaic Modules
Reverter Cubarsí, Ferran; Gasulla Forner, Manuel (2017-08-01)
Article
Accés obertIn energy-harvesting applications, inductor-based switching dc/dc converters are usually employed to regulate the operating voltage of the energy transducer and to transfer the harvested energy to a storage unit. In such ... -
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 obertMaximum 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 ... -
Power efficiency maximization of an RF energy harvester by fine-tuning an L-matching network and the load
Jordana Barnils, José; Reverter Cubarsí, Ferran; Gasulla Forner, Manuel (Elsevier, 2015)
Comunicació de congrés
Accés obertL-matching networks have been proposed for boosting the power efficiency of radiofrequency (RF) energy harvesters. This paper shows that power efficiency is maximized by fine-tuning the components of the L-matching network ... -
Power gain from energy harvesting sources at high MPPT sampling rates
Gasulla Forner, Manuel; Carandell Widmer, Matias (Multidisciplinary Digital Publishing Institute (MDPI), 2023-04-29)
Article
Accés obertEnergy harvesting (EH) sources require the tracking of their maximum power point (MPP) to ensure that maximum energy is captured. This tracking process, performed by an MPP tracker (MPPT), is performed by periodically ... -
Powering wireless sensor nodes: primary batteries versus energy harvesting
Penella López, María Teresa; Albesa, Joan; Gasulla Forner, Manuel (IEEE, 2009-05-31)
Text en actes de congrés
Accés obertWireless sensor networks (WSNs) are increasingly used in many fields. Still, power supply of the nodes remains a challenge. Primary batteries are mainly used but energy harvesting offers an alternative, although not free ... -
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 obertA 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 ... -
Runtime extension of low-power wireless sensor nodes using hybrid-storage units
Penella López, María Teresa; Gasulla Forner, Manuel (2010-03)
Article
Accés obertThe sensor nodes of wireless sensor networks remain inactive most of the time to achieve longer runtimes. Power is mainly provided by batteries, which are either primary or secondary. Because of its internal impedance, a ... -
Seat occupancy and belt detection in removable seats via inductive coupling
Gasulla Forner, Manuel; Albesa, Joan (2011)
Comunicació de congrés
Accés obert