Now showing items 1-20 of 30

  • A High-Efficiency RF Harvester with Maximum Power Point Tracking 

    Gasulla Forner, Manuel; Robert Sanxis, Francesc Josep; Jordana Barnils, José; Ripoll Vercellone, Edgar; Berenguer Sau, Jordi; Reverter Cubarsí, Ferran (Multidisciplinary Digital Publishing Institute (MDPI), 2018)
    Conference report
    Open Access
    This 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 ...
  • Buck converter for low-power PV modules: A Comparative Study 

    Reverter Cubarsí, Ferran; Gasulla Forner, Manuel (Multidisciplinary Digital Publishing Institute (MDPI), 2018)
    Conference report
    Open Access
    Autonomous 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 ...
  • Characterization of MOSFET temperature sensors for on-chip dynamic thermal measurements 

    Reverter Cubarsí, Ferran; Perpinyà, Xavier; Leon, Javier; Vellvehi, Miquel; Jordà, Xavier; Altet Sanahujes, Josep (2015)
    Conference lecture
    Open Access
  • Design considerations for a CMOS Lab-on-Chip microheater array to facilitate the in vitro thermal stimulation of neurons 

    Reverter Cubarsí, Ferran; Prodromakis, Themis; Liu, Yan; Georgiou, Pantelis; Nikolic, Konstantin; Constandinou, Tim (Institute of Electrical and Electronics Engineers (IEEE), 2014)
    Conference report
    Restricted access - publisher's policy
    This paper identifies and addresses key design considerations and trade-offs in the implementation of a CMOS high-resolution microheater array for Lab-on-Chip (LOC) applications. Specifically, this is investigated in the ...
  • Direct inductive sensor-to-microcontroller interface circuit 

    Kokolanski, Zivko; Jordana Barnils, José; Gasulla Forner, Manuel; Dimcev, Vladimir; Reverter Cubarsí, Ferran (2015-04-01)
    Article
    Open Access
    This paper proposes and analyses a microcontroller-based interface circuit for inductive sensors with a variable self-inductance. Besides the microcontroller (mu C) and the sensor, the circuit just requires an external ...
  • Efficiency Optimization in Burst-Mode Buck DC/DC Converters for Sensor Nodes 

    Reverter Cubarsí, Ferran; Glaser, Chris; Gasulla Forner, Manuel (2018-07-08)
    Article
    Open Access
    In autonomous sensor nodes, switching dc/dc converters are usually employed to power the sensor electronics and also to maintain the operating voltage of an energy transducer around its maximum power point. In such a ...
  • Electro-thermal characterization of a differential temperature sensor in a 65 nm CMOS IC: Applications to gain monitoring in RF amplifiers 

    Altet Sanahujes, Josep; González, José Luis; Gómez Salinas, Dídac; Perpiñà Gilabet, Xavier; Claeys, Wilfrid; Grauby, Stéphane; Dufis, Cédric Yvan; Vellvehi, Miquel; Mateo Peña, Diego; Reverter Cubarsí, Ferran; Dilhaire, Stefan; Jordà, Xavier (2014-05)
    Article
    Restricted access - publisher's policy
    This paper reports on the design solutions and the different measurements we have done in order to characterize the thermal coupling and the performance of differential temperature sensors embedded in an integrated circuit ...
  • Examen final 

    Reverter Cubarsí, Ferran (Universitat Politècnica de Catalunya, 2018-06-01)
    Exam
    Restricted access to the UPC academic community
  • Examen final 

    Gasulla Forner, Manuel; Jordana Barnils, José; Polo Cantero, José; Reverter Cubarsí, Ferran (Universitat Politècnica de Catalunya, 2019-01-11)
    Exam
    Restricted access to the UPC academic community
  • Examen MQ 

    Reverter Cubarsí, Ferran (Universitat Politècnica de Catalunya, 2018-04-03)
    Exam
    Restricted access to the UPC academic community
  • Examen MQ 

    Gasulla Forner, Manuel; Jordana Barnils, José; Polo Cantero, José; Reverter Cubarsí, Ferran (Universitat Politècnica de Catalunya, 2018-10-30)
    Exam
    Restricted access to the UPC academic community
  • 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)
    Other
    Open Access
    In 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 ...
  • Improving the resolution in direct inductive sensor-to-microcontroller interface 

    Kokolanski, Zivko; Reverter Cubarsí, Ferran; Gavrovski, Cvetan; Dimcev, Vladimir (2015)
    Conference report
    Open Access
  • Measuring dynamic signals with direct sensor-to-microcontroller interfaces applied to a magnetoresistive sensor 

    Sifuentes, Ernesto; González Landaeta, Rafael; Cota Ruiz, Juan; Reverter Cubarsí, Ferran (Multidisciplinary Digital Publishing Institute (MDPI), 2017-05-18)
    Article
    Open Access
    This paper evaluates the performance of direct interface circuits (DIC), where the sensor is directly connected to a microcontroller, when a resistive sensor subjected to dynamic changes is measured. The theoretical analysis ...
  • Microcontroller-based interface circuit for inductive sensors 

    Kokolanski, Zivko; Jordana Barnils, José; Gasulla Forner, Manuel; Dimcev, Vladimir; Reverter Cubarsí, Ferran (2014)
    Other
    Open Access
    This 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 ...
  • Microcontroller-Based Seat Occupancy Detection and Classification 

    Sifuentes, Ernesto; González Landaeta, Rafael; Cota Ruiz, Juan; Reverter Cubarsí, Ferran (Multidisciplinary Digital Publishing Institute (MDPI), 2018)
    Conference lecture
    Open Access
    This paper presents a microcontroller-based measurement system to detect and confirm the presence of a subject in a chair. The system relies on a single Force Sensing Resistor (FSR), which may be arranged in the seat or ...
  • MOSFET dynamic thermal sensor for IC testing applications 

    Reverter Cubarsí, Ferran; Perpiñà Gilabet, Xavier; Barajas Ojeda, Enrique; León, Javier; Vellvehi, Miquel; Jordà, Xavier; Altet Sanahujes, Josep (2016-05-01)
    Article
    Open Access
    This paper analyses how a single metal-oxide-semiconductor field-effect transistor (MOSFET) can be employed as a thermal sensor to measure on-chip dynamic thermal signals caused by a power-dissipating circuit under test ...
  • Novel and low-cost temperature compensation technique for piezoresistive pressure sensors 

    Reverter Cubarsí, Ferran; Horak, Goran; Bilas, Vedran; Gasulla Forner, Manuel (2009)
    Conference lecture
    Open Access
    This 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 ...
  • On-chip thermal testing using MOSFETs in weak inversion 

    Reverter Cubarsí, Ferran; Altet Sanahujes, Josep (2015-02-01)
    Article
    Open Access
    This paper analyzes the feasibility of using metal-oxide-semiconductor field-effect transistors (MOSFETs) operating in weak inversion as temperature sensors for on-chip thermal testing applications. MOSFETs in weak inversion ...
  • On the stability of shield-driver circuits 

    Spinelli, Enrique M.; Reverter Cubarsí, Ferran (2010-02)
    Article
    Open Access