HID lamps fed with square-waveforms

Author

Enriquez, E. ; Ponce, M. ; Cotorogea, M. ; Osorio, R. ; Alonso, J.M.

Author_Institution

Dept. of Electron., CENIDET, Mexico

Volume

2

fYear

2005

fDate

2-6 Oct. 2005

Firstpage

1171

Abstract

In this paper the dimming and frequency effects on stability, current crest factor (CCF) and power factor (PF) of high intensity discharge (HID) lamps fed with square waveforms are experimentally evaluated. For this evaluation the lamp was stabilized using resistances. The resistances were varied in function of the impedance of the lamp. The effects of dimming and frequency variation were observed for two types of lamps of different nominal power. The results indicate the ranges in which the lamp is stable and the frontier values in which the lamp becomes unstable. The CCF and PF remain close to unity and no acoustic resonances (AR) were observed during the applied tests.

Keywords

halides; lamp accessories; metal vapour lamps; power factor; stability; testing; HID lamps; current crest factor; dimming effects; electronic ballasts; frequency effects; high intensity discharge lamps; metal-halide lamps; power factor; square-waveforms; Acoustic waves; Circuit testing; Electronic ballasts; Frequency domain analysis; High intensity discharge lamps; Impedance; Reactive power; Resonance; Stability; Sufficient conditions;

fLanguage

English

Publisher

ieee

Conference_Titel

Industry Applications Conference, 2005. Fourtieth IAS Annual Meeting. Conference Record of the 2005

ISSN

0197-2618

Print_ISBN

0-7803-9208-6

Type

conf

DOI

10.1109/IAS.2005.1518505

Filename

1518505