TITLE

Electronics in Discharge Lighting

AUTHOR(S)
Donkin, Adrian
PUB. DATE
November 1987
SOURCE
Image Technology;Nov1987, Vol. 69 Issue 11, p490
SOURCE TYPE
Trade Publication
DOC. TYPE
Article
ABSTRACT
This paper discusses the design philosophy behind a range of Daylight Fresnel Systems utilising metal halide, high intensity discharge (HID) lamps with electronic ballasts. These systems offer major advantages over conventional solutions for example — flicker-free operation, improved light output regulation and lightweight design. The attributes of various ballasting methods are discussed and the reasons for adopting a square wave drive approach for this type of lamp are explained. The resultant operating conditions are discussed together with optimisation of lamp electrical parameters to match the ballasting system with particular reference to the 2.5kW HV Supercool MEI lamp.
ACCESSION #
24282434

 

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