Browsing by Author "Gasulla Forner, Manuel"
Now showing items 1-20 of 95
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A compact Thévenin model for a rectenna and its application to an RF harvester with MPPT
(Multidisciplinary Digital Publishing Institute (MDPI), 2019-04-06)
Article
Open AccessThis paper proposes a compact Thévenin model for a rectenna. This model is then applied to design a high-efficiency radio frequency harvester with a maximum power point tracker (MPPT). The rectenna under study consists of ... -
A contactless capacitive angular-position sensor
(Institute of Electrical and Electronics Engineers, 2003-10)
Article
Open AccessThis paper presents an absolute capacitive angular-position sensor with a contactless rotor. The sensor is mainly composed of three parts: the capacitive sensing element, a signal processor, and a microcontroller. The ... -
A high-efficiency matching technique for low power levels in RF harvesting
(The Electromagnetics Academy, 2013)
Conference report
Open AccessRadiofrequency (RF) energy can be harvested in order to power autonomous sensors either from the surrounding environment or from dedicated sources. A conventional RF harvester is mainly composed by an antenna, a matching ... -
A High-Efficiency RF Harvester with Maximum Power Point Tracking
(Multidisciplinary Digital Publishing Institute (MDPI), 2018)
Conference report
Open AccessThis paper presents the implementation of a high-efficiency radiofrequency (RF) harvester, which consists of a rectenna and a maximum power point tracker (MPPT). The rectenna was characterized from -30 dBm to -10 dBm at ... -
A high-speed capacitive-sensor interface using a relaxation oscillator and a fast counter
(Institute of Electrical and Electronics Engineers, 2003-05)
Conference report
Open AccessThis paper presents the analysis and experimental results on the jitter of a capacitive-sensor interface. The interface is implemented with a simple relaxation oscillator, a fast counter and a microcontroller. The goal ... -
A new MPPT method for low-power solar energy harvesting
(2010-09)
Article
Open AccessThis paper describes a new maximum-power-pointtracking (MPPT) method focused on low-power (< 1 W) photovoltaic (PV) panels. The static and dynamic performance is theoretically analyzed, and design criteria are provided. ... -
A novel general-purpose theorem for the analysis of linear circuits
(Institute of Electrical and Electronics Engineers (IEEE), 2021-01-01)
Article
Open AccessA 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 review of commercial energy harvesters for autonomous sensors
(2007-05-01)
Conference report
Open AccessCurrent commercial autonomous sensors are mainly powered by primary batteries. Batteries need to be replaced and hence can become the largest and most expensive part of the system. On the other hand, our environment is ... -
A simple and efficient MPPT method for low-power PV cells
(2014-01-01)
Article
Open AccessSmall-size PV cells have been used to power sensor nodes. These devices present limited computing resources and so low complexity methods have been used in order to extract the maximum power from the PV cells. Among them, ... -
A ZigBee wireless sensor network compliant with the IEEE1451 standard
(2009)
Conference report
Open AccessWireless sensor networks are becoming very attractive for monitoring and control applications with smart sensor nodes. We present an implementation of a ZigBee wireless sensor network compliant with the IEEE1451 standard ... -
Accions per a la millora del rendiment acadèmic de l’assignatura Electrònica en les Telecomunicacions dels graus en Enginyeria de Sistemes de Telecomunicació i Telemàtica de l’EETAC
(Universitat Politècnica de Catalunya. Institut de Ciències de l'Educació, 2022)
Article
Open AccessL’assignatura ET s’imparteix en el primer quadrimestre (1A) dels graus de Telecomunicacions (Enginyeria de Sistemes de Telecomunicació i Telemàtica) i de la doble titulació de grau en Enginyeria de Sistemes Aeroespacials ... -
Actions for Academic Performance Improvement of University Newcomer Students in an Electronics Introductory Subject
(European Society for Engineering Education (SEFI), 2022)
Conference lecture
Open AccessThe subject Electronics for Telecommunications (ET) is taught in the first semester of the Telecommunications degrees at the Castelldefels School of Telecommunications and Aerospace Engineering (EETAC). The academic ... -
Actions for academic performance improvement of university newcomer students in an electronics introductory subject
(Universitat Politècnica de Catalunya, 2022-09)
Conference report
Open AccessThe subject Electronics for Telecommunications (ET) is taught in the first semester of the Telecommunications degrees at the Castelldefels School of Telecommunications and Aerospace Engineering (EETAC). The academic ... -
An Add-On Electronic Device to Upgrade Mechanical Gas Meters into Electronic Ones
(Multidisciplinary Digital Publishing Institute (MDPI), 2018)
Conference report
Open AccessSmart utilities enable more efficient energy consumption and distribution and are the key for smart homes development. We propose an electronic device that will be integrated as an add-on to already installed conventional ... -
Analysis of the optimum gain of a high-pass l-matching network for rectennas
(MDPI AG, 2017-07-25)
Article
Open AccessRectennas, which mainly consist of an antenna, matching network, and rectifier, are used to harvest radiofrequency energy in order to power tiny sensor nodes, e.g., the nodes of the Internet of Things. This paper demonstrates ... -
Análisis de una tecnología de carga de dispositivos inalámbricos. Informe técnico
(2015-01-22)
Research report
Restricted access - confidentiality agreement -
Buck converter for low-power PV modules: A Comparative Study
(Multidisciplinary Digital Publishing Institute (MDPI), 2018)
Conference report
Open AccessAutonomous sensors that harvest energy from the environment usually employ a dc/dc converter to regulate the operating voltage of the energy transducer around its maximum power point (MPP). In this context, this work ... -
Consumption evaluation of a relaxation oscillator as a control sampling circuit for fast-tracking FOCV-MPPT circuits in wave energy converters
(SARTI, 2023)
Article
Open Access -
Contributions to the pendulum-type wave energy converter system for oceanic drifter applications
(2021)
Conference report
Open AccessLagrangian Drifters are autonomous floating passive devices that provide oceanographic surface data. They are low-cost, versatile and easy-deployable marine instrumentation used in climate research. One of the main challenges ... -
Demodulating AM square signals via a digital timer for sensor applications
(2020-05-01)
Article
Open AccessThis 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 ...
