Title :
An adaptive acoustic resonance free electronic ballast for HID lamps
Author :
Jiang, Yan ; Shen, Miaosen ; Li, Hua ; Qian, Zhaoming
Author_Institution :
Coll. of Electr. Eng., Zhejiang Univ., Hangzhou, China
Abstract :
An adaptive acoustic resonance free electronic ballast for high intensity discharge (HID) lamps is proposed. The ballast implemented a digital method to detect acoustic resonance of HID lamps. The lamp power is kept constant. Simultaneously, end of life detection is also provided. A prototype of the electronic ballast for 250 W metal halide lamp has been built, and the experimental results proved its validity.
Keywords :
acoustic resonance; acoustic variables measurement; lamp accessories; metal vapour lamps; power control; 250 W; HID lamps; acoustic resonance detection; adaptive acoustic resonance free electronic ballast; constant lamp power; digital method; end of life detection; high intensity discharge lamps; metal halide lamp; Acoustic signal detection; Acoustic testing; Circuits; Electronic ballasts; Fluctuations; High intensity discharge lamps; Prototypes; Resonance; Resonant frequency; Voltage;
Conference_Titel :
Industry Applications Conference, 2003. 38th IAS Annual Meeting. Conference Record of the
Print_ISBN :
0-7803-7883-0
DOI :
10.1109/IAS.2003.1257666
