Ara es mostren els items 40-55 de 55

    • Piezo-MUMPS batch #1. First Report. 

      Pons Nin, Joan; Gorreta Mariné, Sergio; Domínguez Pumar, Manuel; Blokhina, Elena; O'Connell, D. (2013-07-12)
      Report de recerca
      Accés restringit per acord de confidencialitat
    • Pulsed digital oscillators 

      Domínguez Pumar, Manuel; Ricart Campos, Jordi; Pons Nin, Joan; Rubio, Felix (Institute of Electrical and Electronics Engineers (IEEE), 2008)
      Comunicació de congrés
      Accés obert
      The objective of this paper is to collect the main latest results on pulsed digital oscillators. Rigorous and experimental results are presented that show what kind of sequences are at their output, the relation between ...
    • Pulsed digital oscillators for electrostatic MEMS 

      Gorreta Mariné, Sergio; Ruiz Fernández, Daniel; Blokhina, Elena; Pons Nin, Joan; Jiménez Serres, Vicente; O'Connell, D.; Feely, Orla; Madrenas Boadas, Jordi; Domínguez Pumar, Manuel (2012)
      Article
      Accés restringit per política de l'editorial
      This paper introduces a new actuation scheme for implementing Pulsed Digital Oscillators (PDOs) for electrostatic MEMS resonators. In this scheme, the capacitance of the device is biased with a voltage and it is periodically ...
    • Real-time characterization of dielectric charging in contactless capacitive MEMS 

      Domínguez Pumar, Manuel; Gorreta Mariné, Sergio; Pons Nin, Joan; Blokhina, Elena; Giounanlis, Panonios; Feely, Orla (2015-03-01)
      Article
      Accés obert
      This paper presents a new method to characterize the dynamics of the charge trapped in the dielectric layer of contactless microelectromechanical systems. For sampled-time systems, this allows knowing the state of the net ...
    • Registres 

      Altet Sanahujes, Josep; Pons Nin, Joan (Departament d'Enginyeria Electrònica, 2015-03-26)
      Audiovisual
      Accés obert
    • Second order sigma-delta control of charge trapping for MOS capacitors 

      Bheesayagari, Chenna Reddy; Gorreta Mariné, Sergio; Pons Nin, Joan; Domínguez Pumar, Manuel (2017-09-01)
      Article
      Accés obert
      This paper presents the circuit topology of a second order sigma-delta control of charge trapping for MOS capacitors. With this new topology it is possible to avoid the presence of plateaus that can be found in first-order ...
    • Sigma-delta effects and charge locking in capacitive MEMS under dielectric charge control 

      Giounanlis, Panagiotis; Gorreta Mariné, Sergio; Domínguez Pumar, Manuel; Pons Nin, Joan; Feely, Orla; Blokhina, Elena (2016-05)
      Article
      Accés obert
      This work investigates, analytically and experimentally, the effects induced by the use of a first-order sigma-delta (S¿) feedback loop as a control method of dielectric charging for capacitive microelectromechanical systems ...
    • Simultaneous control of dielectric charge and device capacitance in electrostatic MEMS 

      Gorreta Mariné, Sergio; Pons Nin, Joan; Domínguez Pumar, Manuel (2015-12)
      Article
      Accés obert
      This letter presents a double closed loop for simultaneously controlling the net dielectric charge and the device capacitance in contactless electrostatic MEMS devices. The first loop controls the net charge trapped in ...
    • Sliding mode control of heterogeneous systems 

      Domínguez Pumar, Manuel; Gorreta Mariné, Sergio; Atienza García, María Teresa; Blokhina, Elena; Pons Nin, Joan (2017-06-01)
      Capítol de llibre
      Accés restringit per política de l'editorial
      This paper establishes a link between closed-loop controls for heterogeneous systems and sliding mode controls. We demonstrate that sliding mode analysis matches with experimental results from dielectric charge controllers. ...
    • Sliding-mode analysis of the dynamics of sigma-delta controls of dielectric charging 

      Domínguez Pumar, Manuel; Gorreta Mariné, Sergio; Pons Nin, Joan (Institute of Electrical and Electronics Engineers (IEEE), 2016-03-08)
      Article
      Accés obert
      The purpose of this paper is to show that sigma-delta controllers of dielectric charge can be analyzed using the tools of sliding-mode controllers, in the infinite sampling frequency approximation. This allows to study the ...
    • Spherical probe for the thermophysical characterization of regoliths for planetary exploration using frequency methods 

      Domínguez Pumar, Manuel; Rosero Pozo, Carlos Alberto; Pons Nin, Joan; Ramos Castro, Juan José; Szewczyk, Daria; Jezowski, Andrzej; Solà Peñafiel, Nil; Manyosa i Vilardell, Xavier; Bermejo Broto, Sandra; Jiménez Serres, Vicente (2022-12-01)
      Article
      Accés obert
      The objective of this paper is to analyse the capability of a spherical thermoprobe, recently proposed as a 3D heat flux sensor for regoliths, and additionally to characterize the thermophysical properties of regoliths. ...
    • Stabilization of the J-V characteristic of a perovskite solar cell using an intelligent control loop 

      Bheesayagari, Chenna Reddy; Martínez-Denegrí Sánchez, Guillermo; Orpella García, Alberto; Pons Nin, Joan; Bermejo Broto, Sandra; Alcubilla González, Ramón; Martorell Pena, Jordi; Domínguez Pumar, Manuel (2021-01-02)
      Article
      Accés obert
      The phenomena related to charge trapping are among the most relevant open issues that affect the long-term stability of perovskite-based devices. According to this, the objective of this paper is to report experimental ...
    • The Mediterranean biotypes of Tylenchulus semipenetrans in Spanish citrus orchards 

      Verdejo Lucas, Soledad; Sorribas Royo, Francisco Javier; Pons Nin, Joan; Forner, Juan Bautista; Alcaide, A (Elsevier, 1997)
      Article
      Accés obert
    • Understanding complexity in multiphysics systems-on-a-chip: modern approaches for design 

      Blokhina, Elena; O'Connell, D.; Andrade Miceli, Dennis; Gorreta Mariné, Sergio; Pons Nin, Joan; Domínguez Pumar, Manuel; Feely, Orla; Galayko, Dimitri (Institute of Electrical and Electronics Engineers (IEEE), 2015)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      The aim of this paper is to formalise the term “complexity” in the context of modern microelectronics, propose the definitions of key terms and discuss a case study. Our aim is to show that the term “complex system” is ...
    • Understanding noise-shaping in sigma-delta controls of surface potential for MOX gas sensors 

      Domínguez Pumar, Manuel; Kowalski, Lukasz; Monge Villora, Oscar; Olm Miras, Josep Maria; Navarrete Gatell, Eric; Llobet Valero, Eduard; Pons Nin, Joan (Institute of Electronics, Information and Communications Engineers (IEICE), 2018)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      The objective of this paper is to explain how quantization noise-shaping can be achieved for the output bitstream of sigma-delta controls of surface potential (SP) in MOX gas sensors. These controllers use temperature ...
    • Using a Second Order Sigma-Delta Control to Improve the Performance of Metal-Oxide Gas Sensors 

      Kowalski, Lukasz; Pons Nin, Joan; Navarrete, Eric; Llobet Valero, Eduard; Domínguez Pumar, Manuel (Multidisciplinary Digital Publishing Institute (MDPI), 2018-02-23)
      Article
      Accés obert
      Controls of surface potential have been proposed to accelerate the time response of MOX gas sensors. These controls use temperature modulations and a feedback loop based on first-order sigma-delta modulators to keep ...