1MHz class D electronic ballast for metal halide lamp 250 watt

Author

Howhan, Vatanyoo ; Boonyaroonate, Itsda

Author_Institution

Dept. of Electr. Eng., King Mongkut´´s of Technol. Thonburi, Bangkok

Volume

2

fYear

2008

fDate

14-17 May 2008

Firstpage

1037

Lastpage

1040

Abstract

This paper presented a 1MHz electronic ballast for metal halide lamp (HPI/T 250 W, Philips), which avoids the problem of acoustic resonance. The ballast is base on the class D series-parallel resonant inverter and its operated by very high frequency from class E resonant inverter. The ballast donpsilat need an ignitor for starting the lamp. Because the class D inverter can build high voltage by LCC resonant circuit and reduce starting voltage after starting the lamp automatically. Technical data for designing the class D inverter and the class E inverter are described. The experimental results from a prototype electronic ballast has good performances as ZVS switch, high efficiency (82.3%).

Keywords

lamp accessories; resonant invertors; zero voltage switching; LCC resonant circuit; ZVS switch; class D electronic ballast; class E resonant inverter; frequency 1 MHz; metal halide lamp; power 250 W; series-parallel resonant inverter; Acoustic waves; Electronic ballasts; High intensity discharge lamps; Prototypes; RLC circuits; Resonance; Resonant frequency; Resonant inverters; Switches; Voltage; Class D series-parallel resonant inverter; Class E resonant inverter; MHz electronic ballast; Metal halide lamp;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical Engineering/Electronics, Computer, Telecommunications and Information Technology, 2008. ECTI-CON 2008. 5th International Conference on

Conference_Location

Krabi

Print_ISBN

978-1-4244-2101-5

Electronic_ISBN

978-1-4244-2102-2

Type

conf

DOI

10.1109/ECTICON.2008.4600609

Filename

4600609