发明名称 |
Circuit de commande de commutation et dispositif de commande pour lampe fluorescente à basse pression. |
摘要 |
<p>A control device for a fluorescent lamp comprises two independent circuits based on a power transistor and a switching control circuit, series-connected between a high voltage and the ground. The power transistor has a diode that is reverse mounted between its two electrodes. The switching control circuit comprises a circuit for the detection of a voltage at the terminals of the diode greater than a voltage reference value and a circuit for the detection of the integral of the current flowing in the transistor that is greater than a current reference value corresponding power of the lamp.</p> |
申请公布号 |
FR2721475(B1) |
申请公布日期 |
1996.07.19 |
申请号 |
FR19940007331 |
申请日期 |
1994.06.15 |
申请人 |
SGS THOMSON MICROELECTRONICS SA |
发明人 |
BILDGEN MARCO |
分类号 |
H05B41/24;H02M7/538;H05B41/16;H05B41/282;H05B41/295;H05B41/392;(IPC1-7):H05B41/29;H05B41/233 |
主分类号 |
H05B41/24 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|