Articles producció científica> Enginyeria Electrònica, Elèctrica i Automàtica

Using low-cost microcontrollers to implement variable hysteresis-width comparators for switching power converters

  • Datos identificativos

    Identificador: imarina:5132400
    Autores:
    Bosque-Moncusi J, Valderrama-Blavi H, Flores-Bahamonde F, Vidal-Idiarte E, Martínez-Salamero L
    Resumen:
    Hysteretic comparators are often used to implement sliding-mode controllers or other type of discontinuous regulators for power switching converters. Their design is usually performed analogically yielding robust and fast controllers that can even allow converter operation with high values of duty cycle. A new analogue implementation based on a low-cost microcontroller is described in this study showing the mentioned advantages plus the flexibility of a programmable digital system. The proposed comparator employs some microcontroller peripherals without consuming execution time of the control algorithm and without requiring interruption management. It provides variable hysteresis width to obtain constant switching frequency in sliding-mode strategies and can be used in any type of hard switching converter. The dynamic performance of the method is verified experimentally in a boost converter-based rectifier with power factor correction and output voltage regulation in one single stage. The boost converter operates in sliding mode with constant switching frequency and results in a total harmonic distortion of the input current <;1%.
  • Otros:

    Autor según el artículo: Bosque-Moncusi J, Valderrama-Blavi H, Flores-Bahamonde F, Vidal-Idiarte E, Martínez-Salamero L
    Departamento: Enginyeria Electrònica, Elèctrica i Automàtica
    Autor/es de la URV: BOSQUE MONCUSÍ, JOSEP Mª / FLORES BAHAMONDE, FREEDDY ARTURO / Martínez Salamero, Luis / Valderrama Blavi, Hugo / Vidal Idiarte, Enric
    Palabras clave: microcontrollers comparators (circuits) switching convertors
    Resumen: Hysteretic comparators are often used to implement sliding-mode controllers or other type of discontinuous regulators for power switching converters. Their design is usually performed analogically yielding robust and fast controllers that can even allow converter operation with high values of duty cycle. A new analogue implementation based on a low-cost microcontroller is described in this study showing the mentioned advantages plus the flexibility of a programmable digital system. The proposed comparator employs some microcontroller peripherals without consuming execution time of the control algorithm and without requiring interruption management. It provides variable hysteresis width to obtain constant switching frequency in sliding-mode strategies and can be used in any type of hard switching converter. The dynamic performance of the method is verified experimentally in a boost converter-based rectifier with power factor correction and output voltage regulation in one single stage. The boost converter operates in sliding mode with constant switching frequency and results in a total harmonic distortion of the input current <;1%.
    Áreas temáticas: Engineering, electrical & electronic Engenharias iv Engenharias iii Electrical and electronic engineering
    Acceso a la licencia de uso: https://creativecommons.org/licenses/by/3.0/es/
    ISSN: 17554535
    Direcció de correo del autor: enric.vidal@urv.cat hugo.valderrama@urv.cat
    Identificador del autor: 0000-0002-6016-4096 0000-0003-2892-8209
    Fecha de alta del registro: 2024-09-07
    Versión del articulo depositado: info:eu-repo/semantics/publishedVersion
    Enlace a la fuente original: https://ietresearch.onlinelibrary.wiley.com/doi/full/10.1049/iet-pel.2016.1001
    URL Documento de licencia: https://repositori.urv.cat/ca/proteccio-de-dades/
    Referencia al articulo segun fuente origial: Iet Power Electronics. 11 (5): 787-795
    Referencia de l'ítem segons les normes APA: Bosque-Moncusi J, Valderrama-Blavi H, Flores-Bahamonde F, Vidal-Idiarte E, Martínez-Salamero L (2018). Using low-cost microcontrollers to implement variable hysteresis-width comparators for switching power converters. Iet Power Electronics, 11(5), 787-795. DOI: 10.1049/iet-pel.2016.1001
    DOI del artículo: 10.1049/iet-pel.2016.1001
    Entidad: Universitat Rovira i Virgili
    Año de publicación de la revista: 2018
    Tipo de publicación: Journal Publications
  • Palabras clave:

    Electrical and Electronic Engineering,Engineering, Electrical & Electronic
    Engineering, electrical & electronic
    Engenharias iv
    Engenharias iii
    Electrical and electronic engineering
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