摘要
提出了一种新型的汽车高强度气体放电(High Intensity Discharge,简称HID)灯电子镇流器的系统设计,并给出了分析和试验结果。该设计采用高频升压电路和低频逆变电路两级结构,通过使用变压器辅助绕组,把点火电路输入电压与灯泡供电电压隔离,降低了电路元器件的电压应力,缩小了体积。微控制器单元(Micro-controller Unit,简称MCU)使高频升压电路始终工作在临界导通模式,降低了电路噪声,提高了2%～4%的效率。
A new scheme of the automotive high intensity discharge（HID） lamp ballast systems is proposed.The design and analysis of the proposed ballast and experimental results are presented.The proposed scheme is consisted of the high frequeney converter and the low frequency inverter.This system separates the input voltage of the ignitor from DC link voltage using auxiliary winding,which resuhs in the use of the lower voltage rating power devices for HID lamp ballast system and reduces the size of HID lamp ballast.The proposed ballast controller using micro-controller unit controls the high frequency converter to operate in critical conduction mode,which reduces the noise of the circuit and improves 2%-4% efficiency.
出处
《电力电子技术》
CSCD
北大核心
2009年第9期50-52,共3页
Power Electronics
关键词
镇流器
放电/临界导通模式
微控制器单元
ballast
dischange / critical conduction mode
micro-controller unit
