The breakdown and glow phases during the initiation of discharges for lamps

被引:13
作者
Pitchford, LC [1 ]
Peres, I [1 ]
Liland, KB [1 ]
Boeuf, JP [1 ]
Gielen, H [1 ]
机构
[1] PHILIPS LIGHTING,CENT DEV LABS,EINDHOVEN,NETHERLANDS
关键词
D O I
10.1063/1.366274
中图分类号
O59 [应用物理学];
学科分类号
摘要
High intensity discharge (HID) lamps are often initiated by the application of one or more short, high-voltage, breakdown pulses superimposed on a 50 or 60 Hz generator voltage. A successful transition from the breakdown event to steady-state operating conditions in HID lamps requires that the lamp-circuit system be adequate to sustain the plasma created during breakdown until the electrodes are heated to thermionic temperatures. In this article, we use a one-dimensional (in the axial direction) transient discharge model to study the conditions needed to sustain the cold-cathode discharge after a breakdown event has occurred. While the application of our one-dimensional model to real lamps is approximate, we find that the model predictions are consistent with experimental results in HID lamps, a few of which are presented here. The main conclusion from this work is that, after breakdown, the voltage necessary to sustain a glow discharge is dependent on the source impedance, the gas composition, and on the plasma density created by the breakdown event. (C) 1997 American Institute of Physics.
引用
收藏
页码:112 / 119
页数:8
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