RUO Principal

Repositorio Institucional de la Universidad de Oviedo

Ver ítem 
  •   RUO Principal
  • Producción Bibliográfica de UniOvi: RECOPILA
  • Artículos
  • Ver ítem
  •   RUO Principal
  • Producción Bibliográfica de UniOvi: RECOPILA
  • Artículos
  • Ver ítem
    • español
    • English
JavaScript is disabled for your browser. Some features of this site may not work without it.

Listar

Todo RUOComunidades y ColeccionesPor fecha de publicaciónAutoresTítulosMateriasxmlui.ArtifactBrowser.Navigation.browse_issnPerfil de autorEsta colecciónPor fecha de publicaciónAutoresTítulosMateriasxmlui.ArtifactBrowser.Navigation.browse_issn

Mi cuenta

AccederRegistro

Estadísticas

Ver Estadísticas de uso

AÑADIDO RECIENTEMENTE

Novedades
Repositorio
Cómo publicar
Recursos
FAQs

On Supplying LEDs from Very Low dc Voltages with High Frequency AC-LED Drivers

Autor(es) y otros:
Castro Álvarez, IgnacioAutoridad Uniovi; Vázquez Ardura, AitorAutoridad Uniovi; García Aller, DanielAutoridad Uniovi; Arias Pérez de Azpeitia, ManuelAutoridad Uniovi; González Lamar, DiegoAutoridad Uniovi; Sebastián Zúñiga, Francisco JavierAutoridad Uniovi
Palabra(s) clave:

AC-LED driving

LED driver

Low input voltages and single-cell battery

Fecha de publicación:
2018
Editorial:

IEEE

Versión del editor:
http://dx.doi.org/10.1109/TPEL.2018.2869795
Citación:
IEEE Transactions on Power Electronics (2018); doi:10.1109/TPEL.2018.2869795
Resumen:

This paper studies the driving of white Light Emitting Diodes (LEDs) from very low voltages in the 1.2 to 2 V range. The proposed idea is based on replacing the standard Schottky diode used in conventional converter topologies (i.e., buck, buck-boost and boost) with an LED while shortcutting the output of the converter. In this configuration, the LED works both as the load and the rectifier diode of the converter, hence switching the LED at high frequencies (> 100 kHz). Moreover, a thorough analytical study is carried out for the two topologies proposed in this paper, emphasizing in particular their static analysis and the obtaining of the boundaries between the different conduction modes. Finally, the idea is experimentally validated by means of the boost converter variation (i.e., the DL//S AC-LED driver). The DL//S AC-LED driver was also compared with a dc-dc boost converter, showing a better luminous efficacy while disposing of the Schottky diode and the output capacitor. The analysis was carried out when connected to a Li-Ion battery using a simple control and integrated circuit for its development

This paper studies the driving of white Light Emitting Diodes (LEDs) from very low voltages in the 1.2 to 2 V range. The proposed idea is based on replacing the standard Schottky diode used in conventional converter topologies (i.e., buck, buck-boost and boost) with an LED while shortcutting the output of the converter. In this configuration, the LED works both as the load and the rectifier diode of the converter, hence switching the LED at high frequencies (> 100 kHz). Moreover, a thorough analytical study is carried out for the two topologies proposed in this paper, emphasizing in particular their static analysis and the obtaining of the boundaries between the different conduction modes. Finally, the idea is experimentally validated by means of the boost converter variation (i.e., the DL//S AC-LED driver). The DL//S AC-LED driver was also compared with a dc-dc boost converter, showing a better luminous efficacy while disposing of the Schottky diode and the output capacitor. The analysis was carried out when connected to a Li-Ion battery using a simple control and integrated circuit for its development

URI:
http://hdl.handle.net/10651/48550
ISSN:
0885-8993; 1941-0107
DOI:
10.1109/TPEL.2018.2869795
Patrocinado por:

Trabajo financiado por el Gobierno español, en el marco del Proyecto MINECO-17-DPI2016-75760-R; por el Principado de Asturias, Severo Ochoa BP14-142, Proyecto FC-15-GRUPIN14-143 y Proyecto SVPA-17-RIS3-4, y en parte por el Fondo Europeo de Desarrollo Regional(FEDER)

Colecciones
  • Artículos [37532]
  • Ingeniería Eléctrica, Electrónica, de Comunicaciones y de Sistemas [1086]
  • Investigaciones y Documentos OpenAIRE [8365]
Ficheros en el ítem
Thumbnail
untranslated
Postprint (5.463Mb)
Métricas
Compartir
Exportar a Mendeley
Estadísticas de uso
Estadísticas de uso
Metadatos
Mostrar el registro completo del ítem
Página principal Uniovi

Biblioteca

Contacto

Facebook Universidad de OviedoTwitter Universidad de Oviedo
El contenido del Repositorio, a menos que se indique lo contrario, está protegido con una licencia Creative Commons: Attribution-NonCommercial-NoDerivatives 4.0 Internacional
Creative Commons Image