HID光源声共振研究进展

HID光源在高频工作时,其配套电子镇流器的体积和重量可以降低,从而降低成本。但高频下易出现声共振问题,导致放电不稳定,是应用难点。综述了近年国内外在HID光源声共振研究方面的进展,总结了产生声共振的频率和功率条件,介绍了声共振的光学、电学和声学测量方法,比较了频率窗口、直流驱动、方波驱动、超高频驱动、变频、谐波注入、白噪声调制、混频、信号调制等声共振解决方案。提出应从系统的角度综合设计电弧管参数和镇流器拓扑。

Research Progress on the Acoustic Resonance of HID Lamps

The volume and the weight of the matching electronic ballasts could be reduced when High Intensity Discharge(HID) lamps operate under high frequency working conditions,which in turn could reduce the cost.However,the problem of acoustic resonance may occur for HID lamps operated at high frequency,which leads to the instability in the arc tubes and forms the difficulty for application.This paper reviews the recent overseas and domestic research progress on the acoustic resonance of HID lamps.The frequency and power threshold of acoustic resonance are summarized.The optical,electric and acoustic methods for parameter measurements of acoustic resonance are introduced.The solutions to acoustic resonance are compared,including frequency windows,DC driven,square wave driven,ultra-high frequency driven,frequency modulation,harmonic injection,white noise modulation,multi-frequencies mixture and signal modulation.This paper proposes to combine the design of HID arc tube parameters and electronic ballast topology systematically for an optimal solution to acoustic resonance.