发明名称 |
Circuit for operating a discharge lamp with a variable frequency during ignition |
摘要 |
<p>The circuit has two switching transistors (6, 7) to ignite and operate a discharge lamp (1) at a resonant frequency. A digital control circuit (12) controls the transistors and initiates shutdown operation of a safety shutdown device. The device shuts down a power supply at a threshold value in the region of high supply current of the transistors.</p> |
申请公布号 |
EP1337133(A2) |
申请公布日期 |
2003.08.20 |
申请号 |
EP20030002488 |
申请日期 |
2003.02.05 |
申请人 |
PATENT-TREUHAND-GESELLSCHAFT FUER ELEKTRISCHE GLEHLAMPEN MBH |
发明人 |
BUSSE, OLAF;ORTH, KLAUS, DR. |
分类号 |
H05B41/285;(IPC1-7):H05B41/285;H05B41/295 |
主分类号 |
H05B41/285 |
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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