A comparison of LCC and LC filters for its application in electronic ballast for metal-halide lamps

A complete LC and LCC resonant tanks analysis for its application in the starting and stabilization of metal-halide lamps is presented in this paper. The operation with a single frequency for the starting and steady-state phases, the maximum gain voltage during prestarting phase, the possibility to achieve soft switching in the switches during the starting and steady-state lamp operation and the resonant tank design limitations for these conditions are considered in the analysis. Experimental prototypes were built to verify the analysis and the results are included.