Now showing items 1-18 of 18

  • A frequency domain approach for controlling chaos in switching converters 

    Rodríguez Vilamitjana, Enric; Alarcón Cot, Eduardo José; Iu, H. H. C.; El Aroudi, Abdelali (2010)
    Conference report
    Open Access
    The purpose of this paper is the synthesis from the frequency domain standpoint of a controller for switching power converters with the aim to eliminate bifurcation and chaotic behavior. Firstly the paper analyzes the ...
  • A ripple-based design-oriented approach for predicting fast-scale instability in DC–DC switching power supplies 

    Rodríguez Vilamitjana, Enric; El Aroudi, Abdelali; Guinjoan Gispert, Francisco; Alarcón Cot, Eduardo José (2011-12)
    Article
    Restricted access - publisher's policy
    This paper presents a design-oriented analytical approach for predicting fast-scale instability in power electronics converters under voltage-mode control strategy. This approach is based on the use of the ripple amplitude ...
  • Analysis of bifurcation behavior of a piecewise linear vibrator with electromagnetic coupling for energy harvesting applications 

    El Aroudi, Abdelali; Ouakad, Hassen; Benadero García-Morato, Luis; Younis, Mohammad (2014-05)
    Article
    Restricted access - publisher's policy
    Recently, nonlinearities have been shown to play an important role in increasing the extracted energy of vibration-based energy harvesting systems. In this paper, we study the dynamical behavior of a piecewise linear (PWL) ...
  • Chaos controller for switching regulators aiming enhanced design-space towards miniaturization 

    Rodríguez Rodríguez, Enric; El Aroudi, Abdelali; Martínez García, Herminio; Poveda López, Alberto; Iu, H.; Alarcón Cot, Eduardo José (2012)
    Conference report
    Open Access
    This paper tackles the control of fast-scale instabilities in a buck switching power converter aiming to expand its design-space towards miniaturization. After briefly revisiting the working principle of existing chaos ...
  • Chaotic behaviour in on-chip automatic tuning loops for continuous-time filters 

    Martínez García, Herminio; El Aroudi, Abdelali; Alarcón Cot, Eduardo José; Poveda López, Alberto (Universidad Politécnica de Madrid (UPM), 2013)
    Conference lecture
    Open Access
  • Demonstration of ripple-based index for predicting fast-scale instability in switching power converters 

    Rodríguez Vilamitjana, Enric; Alarcón Cot, Eduardo José; El Aroudi, Abdelali (2009-05)
    Conference report
    Open Access
    In this paper a simplified model based on the exact discrete-time map of a buck switching power converter with proportional control, which captures all its dynamics, allows deriving a closed-form stability condition for ...
  • Dynamical analysis of an interleaved single inductor TITO switching regulator 

    El Aroudi, Abdelali; Moreno Font, Vanessa; Benadero García-Morato, Luis (2009-06)
    Article
    Open Access
    We study the dynamical behavior of a single inductor two inputs two outputs (SITITO) power electronics DC-DC converter under a current mode control in a PWM interleaved scheme. This system is able to regulate two, generally ...
  • Dynamics and stability issues of a single-inductor dual-switching DC-DC converter 

    Moreno Font, Vanessa; El Aroudi, Abdelali; Calvente, Javier; Giral, Roberto; Benadero García-Morato, Luis (2010-02-08)
    Article
    Open Access
    A single-inductor two-input two-output power electronic dc–dc converter can be used to regulate two generally nonsymmetric positive and negative outputs by means of a pulsewidth modulation with a double voltage feedback. ...
  • Instabilities in digitally controlled voltage-mode synchronous buck converter 

    Dongsheng, Yu; Herbert, H. C. Iu; Hao, Chen; Rodriguez, E.; Alarcón Cot, Eduardo José; El Aroudi, Abdelali (2012)
    Article
    Restricted access - publisher's policy
    In this paper, instabilities and bifurcation behavior in a DC–DC digitally controlled voltagemode synchronous buck converter (SBC) are studied. The bifurcation diagram of the system under a proportional-integral (PI) ...
  • Modeling and bifurcation behavior of multi-phase SIMIMO DC-DC switching regulators 

    Moreno Font, Vanessa; El Aroudi, Abdelali; Benadero García-Morato, Luis (2010-11)
    Article
    Restricted access - publisher's policy
    In this paper, different discrete-time models in the form of maps are proposed and analyzed in order to describe the dynamics of single inductor multiple-input multiple-output (SIMIMO) switching DC–DC converters. These ...
  • Modeling of switching frequency instabilities in buck-based DC-AC H-bridge inverters 

    El Aroudi, Abdelali; Rodríguez Vilamitjana, Enric; Orabi, Mohamed; Alarcón Cot, Eduardo José (2011-02)
    Article
    Restricted access - publisher's policy
    In this paper, the dynamical behavior of a full bridge DC–AC buck inverter controlled by fixed frequency and PWM is studied. After showing that the system can undergo both period-doubling and Neimark–Sacker bifurcation at ...
  • 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)
    Conference report
    Open Access
    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 ...
  • Nonlinear dynamics in a graphene nanostructured device for energy harvesting 

    El Aroudi, Abdelali; Lopez Suarez, Miquel; Alarcón Gallo, Eduardo; Rurali, Riccardo; Abadal, Gabriel (Institute of Electrical and Electronics Engineers (IEEE), 2013)
    Conference report
    Restricted access - publisher's policy
    Nonlinearities have been shown to play an important role in increasing the extracted energy of energy harvesting devices at the macro and micro scales. Vibration-based energy harvesting on the nano scale has also received ...
  • Nonlinear dynamics of an ambient noise driven array of coupled graphene nanostructured devices for energy harvesting 

    El Aroudi, Abdelali; Lopez Suarez, Miquel; Alarcón Cot, Eduardo José; Rurali, Riccardo; Abadal, Gabriel (EDP Sciences, 2014)
    Conference report
    Open Access
    Nonlinearities have been shown to play an important role in increasing the extracted energy of energy harvesting devices at the macro and micro scales. Vibration-based energy harvesting on the nano scale has also received ...
  • Nonsmooth pitchfork bifurcation in a dc-dc converter: coexisting attractors and intermittency 

    El Aroudi, Abdelali; Moreno Font, Vanessa; Benadero García-Morato, Luis (IEEE Press. Institute of Electrical and Electronics Engineers, 2009)
    Conference report
    Open Access
    In this paper we deal with the analysis of nonlinear dynamical behavior of a single inductor two inputs two outputs (SITITO) power electronics DC-DC converter. The system can be used to regulate generally two outputs (one ...
  • Stability analysis of periodic orbits in a class of duffing-like piecewise linear vibrators 

    El Aroudi, Abdelali; Benadero García-Morato, Luis; Ouakad, Hassen; Younis, Mohammad (EDP Sciences, 2014)
    Conference lecture
    Open Access
    In this paper, we study the dynamical behavior of a Duffing-like piecewise linear (PWL) springmass-damper system for vibration-based energy harvesting applications. First, we present a continuous time single degree of ...
  • Topologies and control of a class of single inductor multiple-output converters operating in continuous conduction mode 

    Benadero García-Morato, Luis; Moreno Font, Vanessa; Giral, R.; El Aroudi, Abdelali (2011-08)
    Article
    Restricted access - publisher's policy
    In this paper, continuous conduction mode (CCM) operation of a class of single inductor multiple output dc-dc converters is proposed. The power stage combines boost and buck-boost structures loading non-inverted and inverted ...
  • Unveiling nonlinear dynamics in resonant inductively coupled wireless power transfer 

    Bou Balust, Elisenda; El Aroudi, Abdelali; Fisher, Peter; Alarcón Cot, Eduardo José (Institute of Electrical and Electronics Engineers (IEEE), 2014)
    Conference report
    Restricted access - publisher's policy
    Coupled magnetic resonance is considered to be a key enabling technology for mid-range wireless power transfer. Models and systems have hitherto considered linear resonators as underlying dynamics, thereby limiting practical ...