| Abstract |
This paper presents electronic ballast that can
supply five independent high press sodium lamps. The main
contributions are as the follows: Half-bridge topology is
used, putting one LCC out filter to each lamp of the ballast,
parallel distributed between both switch, frequency sweep
method was used to start up the five lamps. It is possible to
supply any numbers (<5) of lamps. A lighting system with
this kind of ballast gains the merits of low system cost and
more flexibility when compared with conventional systems.
The description of the lighting system, practical analysis and
experimental results are included in this paper. |
