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A model has been developed that shares the steady-state and the dynamic voltage-current (V-I) characteristics of a xenon head lamp in a motor vehicle. This study proposes the modelling method, which is based on the spline interpolation algorithms including a major factor such as its temperature that is responsible for the design of an high-intensity discharge (HID) ballast during a hot re-strike....
Adaptive front lighting system becomes more and more popular today. Not only in combustion engine vehicles, but also in some of those new model electric vehicles. Since the new head lamp control system contains several components including drives and controls. Any error on design may affect the overall performance of the system. The simulation of the auto-levelling control system is very important...
In order to reduce the energy, the dimming control is used in the lighting system. There are many different control methods in the fluorescent lamp, after comparing these methods, a research scheme of dimming control used in the HID ballast is proposed. In addition, the lamp model, dimming range and stability analysis are also analyzed in this paper.
This paper is to examine different circuit topologies of HID electronic ballasts for the application in automotive systems. The paper examines the practical issues for the implementation of an HID ballast for the automotive environment. Some of the vital practical issues for successful operation of the HID lamp are discussed. Experimental waveforms from the prototype built in the laboratory, under...
In this paper, a transformer with small size and relatively insensitive to distributing parameter is present. Two types of four different high-voltage pulse transformers used in the igniter circuit of HID ballast are examined. This comparison concludes that the transformer with the smallest size using R core is optimal. Experiment results are used to validate the conclusion
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