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Thermal dynamic model for HID lamps with the outer-bulb effects

Osorio, R. and Oliver, M. and Ponce, M. and Juárez, M. and Olivares, V. and Pinto-Castillo, S.E. and Katebi, M.R. and Grimble, M.J. (2006) Thermal dynamic model for HID lamps with the outer-bulb effects. In: Electronics, Robotics and Automotive Mechanics Conference, 2006, 2006-09-26.

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Abstract

This paper presents a dynamic model for HID lamps; the model is based on thermal and electric principles, and it includes the plasma characteristics. Also, the model considers that the conductivity of the plasma inside the lamp depends of the heat flow from the inside of the lamp to outside. The heat flow of the lamp has an analogy with electrical circuits with resistors and capacitors. This capacitors and resistors represent the thermal behavior of the lamp and can be used to predict the dynamic of the lamp and its stability. The proposed model emulates the effects of the filling gas, the arc tube, the partial vacuum, and the outer bulb. This model is used to emulate the lamp behavior when the lamp is fed with square waveforms. This model can be implemented in software as "PSpice", "Simnon" or "MATLAB".