Author(s): K.Megaladevi, K.N Vijeya Kumar, V.Sumathy
Published in: International Journal of Engineering Research & Technology
License: This work is licensed under a Creative Commons Attribution 4.0 International License.
Volume/Issue: Vol.2 - Issue 2 (February - 2013)
This paper presents single-stage high-power-factor electronic ballast for metal halide lamps. By integrating two buck-boost typed power-factor- correction converters, a full-bridge inverter and a bidirectional buck converter, a single stage electronic ballast with symmetrical circuit topology is derived. The proposed electronic ballast can output a low frequency square-wave voltage to drive metal halide lamps. The problematic phenomena of acoustic resonance can be eliminated.
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