高压钠灯电子镇流器的设计  

Electronic Ballasts Design of High-pressure Sodium Lamp

作　　者：庞保堂[1] 栗红霞[1] 

机构地区：[1]黄河科技学院,河南郑州450063

出　　处：《现代显示》2011年第7期50-54,共5页Advanced Display

摘　　要：高压钠(HPS)灯是高强度放电灯的一种,因其具有高光效(80～140 lm/W)、省电、寿命长和透雾性强等优点,而被广泛应用。传统的电感式镇流器存在功率因数低和自身损耗大的缺点,而且对电网电压波动的适应能力不强,所以研制性价比较高的电子镇流器取代电感式镇流器是大势所趋。目前,高压钠灯电子镇流器大多都是高频电子镇流器,在高频状态下,高压钠灯容易熄弧,存在声共振问题。文章利用可变频脉冲信号产生器设计的高压钠灯电子镇流器较好地避免了声共振问题,加上异常工作状态保护电路,使电子镇流器的性能显著提高。The high-pressure sodium（HPS） lamps are one kind of high intensity discharging lamp.They are widely used because they possess such advantages as high light efficiency（80~140 lm/W）,energy-saving,long life and strong power to penetrate the fog,etc.Traditional inductive ballasts have many shortcomings.Not only is the power factor low and wastage great,but also the ability to adapt to the grid voltage fluctuation is not strong.Therefore,the research of electronic ballasts which have a higher cost-effective to replace inductive ballasts is the general trend.Currently,most of the HPS lamp electronic ballasts are high frequency electronic ballasts.Under high frequencies HPS lamps are easy to put out.Besides there also exists acoustic resonance problem.In this paper,HPS lamp electronic ballasts that designed by a variable frequency pulse signal generator better avoid the acoustic resonance problems.What＇s more the abnormal working conditions protect the circuit,so that the performance of electronic ballasts significantly increased.

关 键 词：高频 声共振 变频脉冲信号产生器 

分 类 号：TN383[电子电信—物理电子学]