Title :
Design and performance of an electronic ballast for high pressure sodium (HPS) lamps
Author :
Ben-yaakov, Sam ; Gulko, Michael
Author_Institution :
Dept. of Electr. & Comput. Eng., Ben-Gurion Univ. of the Negev, Beer-Sheva, Israel
Abstract :
Design requirement and performance evaluation were carried out on an experimental electronic ballast for high pressure sodium (HPS) lamp. The ballast included a high voltage ignitor and dimming capability. It was used to drive and examine the high frequency characteristics of a commercial HPS lamp (NAV-T 150 W (SON-T), OSRAM). The experimental results reveal that for the frequency range of this study (27-75 kHz), the lamp is free of the acoustic resonance problem. It was also found that for the present experimental conditions, the lamp is purely resistive and that the resistance is practically independent of the power level and operating frequency. The lamp exhibited stable operation over a very large dimming range, down to about 7% of nominal power. The 2.8 kV ignition pulse was found to be sufficient for both cold and hot start up under the proposed operating conditions
Keywords :
DC-AC power convertors; circuit testing; invertors; lamp accessories; metal vapour lamps; network synthesis; sodium; 150 W; 2.8 kV; 27 to 75 kHz; Na; design; dimming capability; electronic ballast; frequency range; high frequency characteristics; high pressure sodium lamps; high voltage ignitor; operating conditions; performance; start up; Electric variables; Electronic ballasts; Fluorescent lamps; Frequency; High intensity discharge lamps; Ignition; Inverters; Magnetohydrodynamics; Resonance; Zero voltage switching;
Conference_Titel :
Applied Power Electronics Conference and Exposition, 1995. APEC '95. Conference Proceedings 1995., Tenth Annual
Conference_Location :
Dallas, TX
Print_ISBN :
0-7803-2482-X
DOI :
10.1109/APEC.1995.469091
