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http://dx.doi.org/10.6113/JPE.2010.10.5.451

Digital Control Methods of Two-Stage Electronic Ballast for Metal Halide Lamps with a ZVS-QSW Converter  

Wang, Yijie (Dept. of Electrical and Electronics Engineering, Harbin Institute of Technology)
Zhang, Xiangjun (Dept. of Electrical and Electronics Engineering, Harbin Institute of Technology)
Wang, Wei (Dept. of Electrical and Electronics Engineering, Harbin Institute of Technology)
Xu, Dianguo (Dept. of Electrical and Electronics Engineering, Harbin Institute of Technology)
Publication Information
Journal of Power Electronics / v.10, no.5, 2010 , pp. 451-460 More about this Journal
Abstract
This paper presents a new kind of digital control metal halide lamp electronic ballast. A zero-voltage-switch quasi-square-wave (ZVS-QSW) dual Buck converter is adopted here. In this paper, a digital control method is proposed to achieve ZVS for the converter. This ZVS can be realized during the whole working condition. Single-cycle-peak-current control is proposed to solve the problem of excessive inductor current during a low-frequency reversal transient. Power loop control is also realized and its consistency for different lamps is good. An AVR special microcontroller for a HID ballast is used to raise the control performance, and the low-frequency square-wave control method is adopted to avoid acoustic resonance. A 70W prototype was built in the laboratory. Experimental results show that the electronic ballast works reliably. Furthermore, the efficiency of the ballast can be higher than 92%.
Keywords
Single-cycle-peak-current control; Square-waveform; ZVS; ZVS-QSW;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
Times Cited By Web Of Science : 2  (Related Records In Web of Science)
Times Cited By SCOPUS : 2
연도 인용수 순위
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