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: FLORES BAHAMONDE, FREEDDY ARTURO / 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: hugo.valderrama@urv.cat enric.vidal@urv.cat

Identificador del autor: 0000-0003-2892-8209 0000-0002-6016-4096

Fecha de alta del registro: 2023-02-18

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: http://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