Revised Reprint: Electronics in Discharge Lighting
This article discusses the design philosophy behind a range of daylight fresnel systems utilizing metal halide, high-intensity discharge (HID) lamps with electronic ballasts. These systems offer major advantages over conventional solutions, i.e., 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 optimization of lamp electrical parameters to match the ballasting system, with particular reference to the 2.5-kW HV Supercool MEI lamp.
- Print ISSN
- 0036-1682
- Published
- 1988-08
- Content type
- Original Research
- DOI
- 10.5594/J03986
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