Articles producció científica> Enginyeria Electrònica, Elèctrica i Automàtica

Prediction of subharmonic oscillation in switching regulators: from a slope to a ripple standpoint

  • Datos identificativos

    Identificador: imarina:9297721
    Autores:
    El Aroudi, AAl-Numay, MCalvente, JGiral, RRodriguez, EAlarcon, E
    Resumen:
    New exact critical conditions for predicting subharmonic instability in switching regulators are approximated by simple design-oriented expressions valid under practical conditions. These simplified expressions contain the ripple and slope information of the feedback control signal. Depending on the converter topology, the controller used and values of parasitic parameters, either the slope or the ripple can be dominant in predicting instability. A discussion on the validity of this interpretation is illustrated through six different examples of switching regulators using the concept of the spectral radius and the relative degree of the system loop. Using this approach, the boundary between the desired stable region and the subharmonic instability can be easily obtained. The theoretical results are validated by means of numerical simulations.
  • Otros:

    Autor según el artículo: El Aroudi, A; Al-Numay, M; Calvente, J; Giral, R; Rodriguez, E; Alarcon, E
    Departamento: Enginyeria Electrònica, Elèctrica i Automàtica
    Autor/es de la URV: Calvente Calvo, Francisco Javier / Cid Pastor, Angel / El Aroudi Chaoui, Abdelali / Giral Castillon, Roberto
    Palabras clave: Subharmonic oscillation Stability analysis Stability Models Dc–dc converters Dc-dc converters Dc-dc converter Converters
    Resumen: New exact critical conditions for predicting subharmonic instability in switching regulators are approximated by simple design-oriented expressions valid under practical conditions. These simplified expressions contain the ripple and slope information of the feedback control signal. Depending on the converter topology, the controller used and values of parasitic parameters, either the slope or the ripple can be dominant in predicting instability. A discussion on the validity of this interpretation is illustrated through six different examples of switching regulators using the concept of the spectral radius and the relative degree of the system loop. Using this approach, the boundary between the desired stable region and the subharmonic instability can be easily obtained. The theoretical results are validated by means of numerical simulations.
    Áreas temáticas: Planejamento urbano e regional / demografia Engineering, electrical & electronic Engenharias iv Engenharias iii Electrical and electronic engineering Ciência da computação
    Acceso a la licencia de uso: https://creativecommons.org/licenses/by/3.0/es/
    Direcció de correo del autor: roberto.giral@urv.cat angel.cid@urv.cat abdelali.elaroudi@urv.cat javier.calvente@urv.cat
    Identificador del autor: 0000-0001-6582-6741 0000-0001-8124-6210 0000-0001-9103-7762 0000-0001-8012-1889
    Fecha de alta del registro: 2024-10-12
    Versión del articulo depositado: info:eu-repo/semantics/acceptedVersion
    Enlace a la fuente original: https://www.tandfonline.com/doi/abs/10.1080/00207217.2016.1178342
    URL Documento de licencia: https://repositori.urv.cat/ca/proteccio-de-dades/
    Referencia al articulo segun fuente origial: International Journal Of Electronics. 103 (12): 2090-2109
    Referencia de l'ítem segons les normes APA: El Aroudi, A; Al-Numay, M; Calvente, J; Giral, R; Rodriguez, E; Alarcon, E (2016). Prediction of subharmonic oscillation in switching regulators: from a slope to a ripple standpoint. International Journal Of Electronics, 103(12), 2090-2109. DOI: 10.1080/00207217.2016.1178342
    DOI del artículo: 10.1080/00207217.2016.1178342
    Entidad: Universitat Rovira i Virgili
    Año de publicación de la revista: 2016
    Tipo de publicación: Journal Publications
  • Palabras clave:

    Electrical and Electronic Engineering,Engineering, Electrical & Electronic
    Subharmonic oscillation
    Stability analysis
    Stability
    Models
    Dc–dc converters
    Dc-dc converters
    Dc-dc converter
    Converters
    Planejamento urbano e regional / demografia
    Engineering, electrical & electronic
    Engenharias iv
    Engenharias iii
    Electrical and electronic engineering
    Ciência da computação
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