发明名称 |
EOL detection with integrated filament interrogation |
摘要 |
The invention relates to a novel operating circuit for a low-pressure discharge lamp 1 with early EOL detection via a measurement of the DC voltage between the electrodes 2, 3. In this case, an electrode interrogation can be carried out by checking a respective connection via the electrodes 2, 3 to a respective reference potential.
|
申请公布号 |
US6646390(B2) |
申请公布日期 |
2003.11.11 |
申请号 |
US20030378895 |
申请日期 |
2003.03.05 |
申请人 |
PATENT TREUHAND GESELLSCHAFT FUR ELEKTRISCHE GLUHLAMPEN MBH |
发明人 |
GRABNER MARTIN;HECKMANN MARKUS |
分类号 |
H05B41/298;(IPC1-7):H05B37/00 |
主分类号 |
H05B41/298 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|