Analysis and design of a LCC resonant inverter for high intensity discharge lamps

A complete study of the clamped-mode LCC resonant inverter together with some of the control-to-output characteristics are presented in the first part of this paper. In the second part, a new control method for the clamped-mode LCC resonant inverter is introduced. With this method the inverter is forced to operate with optimum commutations and without handling reactive energy, thus minimizing both switching and conduction losses. The corresponding design procedure is illustrated with a design example. Finally, some experimental results obtained from a prototype at the laboratory are also shown to validate the analysis and evaluate the proposed control method