Ignitors analysis of characteristics in the ballast of the HID lamps and analysis of its effect on the control IC operations

HID 램프용 안정기의 점화기 특성부석 및 제어용 IC의 동작영향 분석

In this paper, four types of igniters were modeled and their characteristics were researched. And then we analyzed and experimented the effect on the control IC operation in this system. Due to the high ignition voltage, the DC power line on control IC is contaminated with the impulsive noise voltage. So the control IC operation is stopped. Therefore we have found that contamination of DC power noise is reduced by shielding, grounding pattern, and filtering method. We showed that the experimental results are agreed with the theoritical value obtained by the four types of ignitor models.