Exploració per autor "El Aroudi, Abdelali"

Ara es mostren els items 9-28 de 32

    • Chaos controller for switching regulators aiming enhanced design-space towards miniaturization 

      Rodríguez Rodríguez, Enric; El Aroudi, Abdelali; Martínez García, Herminio; Poveda López, Alberto; Alarcón Cot, Eduardo José (Institute of Electronics, Information and Communications Engineers (IEICE), 2014-03-17)
      Article
      Accés obert
      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 ...

    • 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)
      Text en actes de congrés
      Accés obert
      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)
      Comunicació de congrés
      Accés obert

    • Delay effects on the limit cycling behavior in an H-bridge resonant inverter with zero current switching control strategy 

      Benadero García-Morato, Luis; Torres Peral, Francisco; El Aroudi, Abdelali; Olalla Martinez, Carlos; Ponce Núñez, Enrique; Martínez Salamero, Luis (2018)
      Text en actes de congrés
      Accés obert
      In this paper, bifurcations of limit cycles in a H-bridge LC resonant inverter under a zero current switching control strategy with delay in the switching action are analyzed. Mathematical analysis and numerical simulations ...

    • Delay effects on the limit cycling behavior in resonant inverters with state feedback 

      Benadero García-Morato, Luis; El Aroudi, Abdelali; Ponce, Enrique (2019-10-01)
      Article
      Accés restringit per política de l'editorial
      Bifurcations of limit cycles in an H-bridge LC resonant inverter are reexamined taking into account a time delay in the switching transition. The analysis is accomplished by means of a model of the inverter that compresses, ...

    • 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)
      Text en actes de congrés
      Accés obert
      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 ...

    • Dynamic analysis of self-oscillating H-bridge inverters with state feedback 

      Benadero García-Morato, Luis; Torres Peral, Francisco; Ponce Núñez, Enrique; El Aroudi, Abdelali (2020-01)
      Article
      Accés obert
      This paper presents a comprehensive approach to analyze the dynamics of a generalized model of resonant inverters using nonsmooth dynamical system theory. The model simultaneously covers both parallel and series resonant ...

    • Dynamical analysis of an interleaved single inductor TITO switching regulator 

      El Aroudi, Abdelali; Moreno Font, Vanessa; Benadero García-Morato, Luis (2009-06)
      Article
      Accés obert
      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
      Accés obert
      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. ...

    • In-depth analysis of smooth and nonsmooth bifurcations for an open-loop boost converter feeding constant power loads in discontinuous conduction mode 

      Benadero García-Morato, Luis; El Aroudi, Abdelali; Martínez-Salamero, Luis; Tse, Chi K (2023-03-30)
      Article
      Accés obert
      This paper presents a study of the existence conditions of limit cycles and mechanisms when losing their stability in an open-loop DC–DC boost converter loaded with a constant power load and operating in discontinuous ...

    • 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
      Accés restringit per política de l'editorial
      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) ...

    • Limit cycle bifurcations in resonant LC power inverters under zero current switching strategy 

      Benadero García-Morato, Luis; Ponce, Enrique; El Aroudi, Abdelali; Torres Peral, Francisco (2018-01)
      Article
      Accés obert
      The dynamics of a DC-AC self-oscillating LC resonant inverter with a zero current switching strategy is considered in this paper. A model that includes both the series and the parallel topologies and accounts for parasitic ...

    • 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
      Accés restringit per política de l'editorial
      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
      Accés restringit per política de l'editorial
      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 dynamic modeling and analysis of self-oscillating H-bridge parallel resonant converter under zero current switching control: unveiling coexistence of attractors 

      El Aroudi, Abdelali; Benadero García-Morato, Luis; Ponce, Enrique; Olalla Martinez, Carlos; Torres Peral, Francisco; Martínez Salamero, Luis (2018-12-14)
      Article
      Accés obert
      This paper deals with the global dynamical analysis of an H-bridge parallel resonant converter under a zero current switching control. Due to the discontinuity of the vector field in this system, sliding dynamics may take ...

    • 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
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      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)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      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)
      Text en actes de congrés
      Accés obert
      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)
      Text en actes de congrés
      Accés obert
      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 ...

    • Sliding bifurcations in resonant inverters 

      El Aroudi, Abdelali; Ponce Núñez, Enrique; Benadero García-Morato, Luis; Martínez Salamero, Luis (2017)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      In this paper, the switching dynamics of a dc-ac resonant self-oscillating inverter is considered. Using bifurcation analysis coexisting steady-state solutions are predicted, which are increasingly ...