Author, as appears in the article.: El Aroudi, A.; Al-Numay, M.; Calvente, J.; Giral, R.; Rodriguez, E.; Alarcon, E.;
Department: Enginyeria Electrònica, Elèctrica i Automàtica
URV's Author/s: Calvente Calvo, Francisco Javier / El Aroudi Chaoui, Abdelali / Giral Castillon, Roberto
Keywords: Subharmonic oscillation Stability analysis Stability Models Dc–dc converters Dc-dc converters Dc-dc converter Converters
Abstract: 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.
Thematic Areas: Planejamento urbano e regional / demografia Engineering, electrical & electronic Engenharias iv Engenharias iii Electrical and electronic engineering Ciência da computação
licence for use: https://creativecommons.org/licenses/by/3.0/es/
Author's mail: javier.calvente@urv.cat abdelali.elaroudi@urv.cat roberto.giral@urv.cat
Author identifier: 0000-0001-8012-1889 0000-0001-9103-7762 0000-0001-6582-6741
Record's date: 2023-05-20
Papper version: info:eu-repo/semantics/acceptedVersion
Link to the original source: https://www.tandfonline.com/doi/abs/10.1080/00207217.2016.1178342
Papper original source: International Journal Of Electronics. 103 (12): 2090-2109
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
Licence document URL: http://repositori.urv.cat/ca/proteccio-de-dades/
Article's DOI: 10.1080/00207217.2016.1178342
Entity: Universitat Rovira i Virgili
Journal publication year: 2016
Publication Type: Journal Publications
Repositori URV