Analysis and design of a high power factor, single-stage electronic ballast for high-intensity discharge lamps |
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Authors: | Martin F.J.F. Viejo C.B. Anton J.C.A. Garcia M.A.P. Rico-Secades M. Alonso J.M. |
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Affiliation: | Univ. de Oviedo, Gijon, Spain; |
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Abstract: | This paper proposes a single-stage electronic ballast for high-intensity discharge lamps. The ballast consists of the integration of a boost converter in discontinuous conduction mode (DCM) and a full-bridge LCC resonant inverter. The boost semi-stage working in DCM functions as a power factor corrector and the inverter semi-stage operated above resonance is employed to drive the lamp. The sine-wave approximation is used to design the inverter at steady-state. The proposed electronic ballast can save a controller, reduce size and possibly increase system reliability compared to conventional two-stage system. The proposed ballast is analyzed, simulated and experimentally verified with a 125 W HPS lamp. |
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