| 发明名称 |
Ballast circuit arrangement for operating a discharge lamp with end of lamp life detection |
| 摘要 |
End of life of a lamp operated by a ballast circuit is detected by detecting whether the amplitude of a DC current through the lamp is outside of a range between two predetermined boundary values.
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| 申请公布号 |
US2005001558(A1) |
申请公布日期 |
2005.01.06 |
| 申请号 |
US20040494606 |
申请日期 |
2004.05.04 |
| 申请人 |
BUIJ ARNOLD WILLEM;HABRAKEN ANTONIUS HENRICUS PETERUS JOHANNES;VAN DER VEEN GEERT WILLEM |
发明人 |
BUIJ ARNOLD WILLEM;HABRAKEN ANTONIUS HENRICUS PETERUS JOHANNES;VAN DER VEEN GEERT WILLEM |
| 分类号 |
H05B41/24;H05B41/298;H05B41/392;(IPC1-7):H05B41/36;H05B37/02 |
主分类号 |
H05B41/24 |
| 代理机构 |
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