发明名称 |
METHOD AND CIRCUIT ARRANGEMENT FOR OPERATING AT LEAST ONE DISCHARGE LAMP |
摘要 |
A method for operating a lamp, wherein in the preheating phase a first value of the voltage drop correlated with the reciprocal of the electrical resistance of a coil of the lamp is determined across a resistor at a first instant, and a second value of the voltage drop is determined at a second instant, may include: a) determining the difference between a first and the second value; b) b1) if the difference is greater than a first threshold value: carrying out an algorithm for lamp-type recognition; b2) if the difference is not greater than the first threshold value: c1) if the difference is greater than a second threshold value: d1) if the second value is greater than a third threshold value: determining a coil short circuit; d2) if the second value is not greater than the third threshold value: operating the lamp with the current set of operating parameters. |
申请公布号 |
EP2274960(A1) |
申请公布日期 |
2011.01.19 |
申请号 |
EP20080736581 |
申请日期 |
2008.04.25 |
申请人 |
OSRAM GESELLSCHAFT MIT BESCHRAENKTER HAFTUNG |
发明人 |
KRUMMEL, PETER;MITZE, ANDREAS |
分类号 |
H05B41/295 |
主分类号 |
H05B41/295 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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