Proceedings of the KIEE Conference (대한전기학회:학술대회논문집)
- 2002.07b
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- Pages.1129-1133
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- 2002
An Electronic Ballast Using A Multiplex Modulation Method for The Metal Halide Lamp
다중 변조식 메탈 할라이드 램프용 고주파 전자식 안정기
- Oh, Duk-Jin (Hanyang University) ;
- Kim, Hee-Jun (Hanyang University) ;
- Oh, Won-Seok (Yuhan College) ;
- Cho, Kyu-Min (Yuhan College)
- Published : 2002.07.10
Abstract
This paper presents an electronic ballast using a novel multiplex modulation method for the metal halide lamp. The proposed modulation method, which has a modulating signal of swept multiplex frequency, can eliminate the acoustic resonance more effectively than the conventional modulation method, which has a modulating signal of constant frequency. For the purpose of future application specific integrated circuits (ASIC), the controller of the proposed ballast has been designed only with erasable programmable logic devices (EPLDs), but without a microprocessor. In this paper, detailed proposed modulation schemes are described and experimental results on the proto-type 150W metal halide lamp ballast with the proposed modulation method are discussed.
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