Title :
Low-frequency square-wave electronic ballast for multiple metal halide lamps
Author :
Liang, T.J. ; Huang, C.M. ; Chen, J.F.
Author_Institution :
Nat. Cheng Kung Univ., Tainan
Abstract :
A novel electronic ballast for multiple metal halide lamps is proposed. The lamp power control stages are composed of two-output flyback converters. The lamp driving stage is a half-bridge inverter that is used to drive lamps with a low-frequency square waveform. Implementation of the proposed topology is easy, useful, and low cost. A laboratory prototype of the electronic ballast used to drive four 20 W metal halide lamps is implemented.
Keywords :
invertors; lamp accessories; metal vapour lamps; power convertors; half-bridge inverter; lamp power control; low-frequency square waveform; low-frequency square-wave electronic ballast; multiple metal halide lamps; power 20 W; two-output flyback converters;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:20083184
