Title :
A smart-lighting emergency system for fluorescent lamps
Author :
Alonso, J.M. ; Díaz, J. ; Blanco, C. ; Villegas, P.J. ; Rico, M.
Author_Institution :
Dpto. de Ingenieria Electrica y Electronica, Oviedo Univ., Spain
Abstract :
In traditional emergency lighting systems, internal damage must be detected and repaired by specialist workers. Since this occurs normally after a line voltage failure, the installations have a low security level. In this paper, a new emergency ballast for fluorescent lamps with high operational reliability is presented. The system has the capability of testing itself, checking its functional state and displaying its internal damage. The fundamental block is the control circuit based on a microcontroller that performs the supervision and control functions, achieving an increase in the installation security. High frequency electronics techniques are used to implement the battery charger and the lamp driver, with high power factor in the first and high luminous efficacy in the second. In this way, sizes and weights have been minimized for all the system
Keywords :
battery chargers; digital control; fluorescent lamps; lamp accessories; lighting control; microcontrollers; power convertors; reliability; uninterruptible power supplies; voltage control; UPS; battery charger; digital control; emergency ballast; emergency lighting systems; fluorescent lamps; lamp accessories; lamp driver; line voltage failure; luminous efficacy; microcontroller; power convertors; power factor; reliability; voltage control;
Conference_Titel :
Power Electronics and Applications, 1993., Fifth European Conference on
Conference_Location :
Brighton