Title :
High power factor dimmable lighting system for electrodeless fluorescent lamp
Author :
Silva, M. F da S ; de P Lopes, J. ; Chagas, N. B B ; Seidel, A. A R ; Costa, M. A Dalla ; Prado, R. N do
Author_Institution :
Group of Intell. in Lighting, Fed. Univ. of Santa Maria, Santa Maria, Brazil
Abstract :
The use of the fluorescent lamps without electrodes (electrodeless) has been increasing, because of their features such as lifetime and lumen efficiency, when compared to conventional fluorescent and high pressure sodium (HPS) lamps. This paper presents a luminous flux variation strategy using a Single Ended Primary Inductance Converter (SEPIC), which also provides high power factor correction, to feed electrodeless fluorescent lamps. Since the load is variable a digital compensation is used to meet the control of the specified output voltage in the project, once the dimming characteristic is achieved by varying the SEPIC output voltage. A microcontroller is used in order to allow a suitable control for the converter since it presents features that make possible to obtain dimming capability. The lumens information can be done through wireless system.
Keywords :
fluorescent lamps; lighting; microcontrollers; power convertors; power factor correction; digital compensation; electrodeless fluorescent lamp; high power factor correction; high power factor dimmable lighting system; high pressure sodium lamps; lumen efficiency; microcontroller; single ended primary inductance converter; wireless system; Electric variables control; Electrodeless lamps; Electrodes; Feeds; Fluorescent lamps; Inductance; Microcontrollers; Power factor correction; Reactive power; Voltage control; Dimming control; electrodeless fluorescent lamps; electronic ballasts;
Conference_Titel :
Power Electronics Electrical Drives Automation and Motion (SPEEDAM), 2010 International Symposium on
Conference_Location :
Pisa
Print_ISBN :
978-1-4244-4986-6
Electronic_ISBN :
978-1-4244-7919-1
DOI :
10.1109/SPEEDAM.2010.5542172
