Exploració per autor "Feely, Orla"

Ara es mostren els items 13-19 de 19

    • Modelling of a charge control method for capacitive MEMS 

      Giounanlis, Panonios; Blokhina, Elena; Feely, Orla; Domínguez Pumar, Manuel; Pons Nin, Joan; Gorreta Mariné, Sergio (Institute of Electrical and Electronics Engineers (IEEE), 2013)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      Charging of dielectric materials in microelectromechanical systems (MEMS) actuated electrostatically is a major reliability issue. In our previous work we proposed a feedback loop control method that is implemented as ...

    • Nonlinear dynamics and bifurcation behavior of a 2-DOF spring resonator with end stopper for energy harvesting 

      El Aroudi, Abdelali; Blokhina, Elena; O'Connell, D.; Fu, B.; Frizzell, R.; Feely, Orla; Alarcón Cot, Eduardo José (EDP Sciences, 2014)
      Text en actes de congrés
      Accés obert
      In this paper, the model of a two-degree-of-freedom (2-DOF) spring resonator with end stopper for an energy harvesting application is presented. Then we characterize its nonlinear dynamical behavior by numerical simulations ...

    • On some properties of the output of a pulsed digital oscillator working with multiple resonances 

      Blokhina, Elena; Feely, Orla; Ricart Campos, Jordi; Domínguez Pumar, Manuel (Institute of Electrical and Electronics Engineers (IEEE), 2010)
      Text en actes de congrés
      Accés obert
      In this paper, we study the possible output of the pulsed digital oscillator (PDO) with multiple resonant modes of the mechanical resonator in the feedback loop. PDOs are simple circuits that allow linear resonators to ...

    • 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 ...

    • 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 ...

    • 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 ...