English español
Búsqueda
 

Repositorio de la Universidad de Oviedo > Producción Bibliográfica de UniOvi: RECOPILA > Artículos >

Use este identificador para citar o enlazar este ítem: http://hdl.handle.net/10651/41044

Título : Active input current shaper without electrolytic capacitor for retrofit lamps applications
Autor(es) y otros: González Lamar, Diego
Arias Pérez de Azpeitia, Manuel
Fernández, Arturo
Villarejo, José Antonio
Sebastián Zúñiga, Francisco Javier
Palabras clave: Ac-to-dc power conversion
Harmonic distortion
LEDs
Lighting, power factor
Fecha de publicación : 2016
Editorial : IEEE
Versión del editor: http://dx.doi.org/10.1109/TPEL.2016.2593868
Citación : IEEE Transactions on Power Electronics, 32(5), p. 3908-3919 (2016); doi:10.1109/TPEL.2016.2593868
Descripción física: p. 3908-3919
Resumen : The evolution of solid-state lighting technology has transformed traditional solutions in lighting. High-brightness light-emitting diodes (HB-LEDs) have become very attractive light sources due to their excellent characteristics, namely high efficiency, a long lifetime, and low maintenance. It is evident that HB-LED drivers must be durable and efficient in order to enjoy these advantages. Moreover, to replace incandescent bulbs, the ac-to-dc HB-LED driver must be simple and have low size and comply with international regulations (i.e., injecting low-frequency harmonics into the mains supply). With the last modifications regarding low-power lighting equipment (i.e., <; 25 W), the authors have traditionally focused their efforts on increasing efficiency by sacrificing sinusoidal input current, yet all their solutions obviate the suppression of the traditional electrolytic capacitor of ac-to-dc converters, highlighting that this is the price to pay for a simple and low-size solution. This paper, however, puts forward the design of a simple and low-size ac-to-dc HB-LED driver for retrofit lamps without an electrolytic capacitor in order to extend its lifetime. The solution proposed here derives from a well-known technique used in the past, the active input current shaper (AICS), but without an electrolytic capacitor in this case. If the electrolytic capacitor of an AICS is removed, then low-frequency ripple arises at its intermediate dc bus, adding some distortion in the line input current over the proper natural one of an AICS. However, this addition is slight in comparison to the proper natural distortion of AICSs. Moreover, the low-frequency ripple at the intermediate bus is not transferred to the output with the help of the rapid output dynamic response of the AICS, which prevents flicker. This paper presents a theoretical analysis that guarantees a compromise between compliance with international regulations and the use of capacitor technologies other than the electrolytic design. Finally, a 24-W experimental prototype has been built and tested to validate the theoretical results presented in this paper
URI : http://hdl.handle.net/10651/41044
ISSN : 0885-8993
1941-0107
Aparece en las colecciones: Artículos
Ingeniería Eléctrica, Electrónica, de Computadores y Sistemas
Investigaciones y Documentos OpenAIRE

Ficheros en este ítem:

Fichero Descripción Tamaño Formato
Active input current shaper without electrolytic capacitor for retrofit lamps applications.pdfPostprint1,69 MBAdobe PDFVisualizar/Abrir


Exportar a Mendeley


Los ítems de DSpace están protegidos por copyright, con todos los derechos reservados, a menos que se indique lo contrario.

 

Base de Datos de Autoridades Biblioteca Universitaria Consultas / Sugerencias