Exploració per autor "Rodríguez Vilamitjana, Enric"
Ara es mostren els items 1-7 de 7
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A design-oriented combined approach for bifurcation prediction in switched-mode power converters
El Aroudi, Abdelali; Rodríguez Vilamitjana, Enric; Leyva Grasa, Ramon; Alarcón Cot, Eduardo José (Institute of Electrical and Electronics Engineers (IEEE), 2010-03)
Article
Accés restringit per política de l'editorialIn this brief, two different approaches are combined for studying the stability of a buck switching power dc-dc converter and for predicting its bifurcations. Instability indexes derived from both approaches are combined ... -
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)
Text en actes de congrés
Accés obertThe 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 nonlinear time-varying map of a buck power-switching amplifier for wide band tracking applications
El Aroudi, Abdelali; Alarcón Cot, Eduardo José; Rodríguez Vilamitjana, Enric; Leyva Grasa, Ramon (Emerald, 2010)
Article
Accés restringit per política de l'editorialPurpose The purpose of this paper is to characterize the nonlinear dynamical behaviour of a buck-based power-switching amplifier controlled by fixed frequency and pulse width modulation with a proportional-integral ... -
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
Accés restringit per política de l'editorialThis 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 ... -
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 obertIn 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 ... -
Design-oriented model for predicting and controlling fast-scale instabilities in switching converters : application to advanced power management integrated circuits
Rodríguez Vilamitjana, Enric (Universitat Politècnica de Catalunya, 2011-02-28)
Tesi
Accés obertTrends in battery-operated portable applications require further miniaturization and eventually on-chip integration of power processing circuits along with their optimum power management control circuits, considered as key ... -
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'editorialIn 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 ...