公开(公告)号：US20060097666A1

公开(公告)日：2006-05-11

申请号：US10537008

申请日：2003-11-18

申请人： Sreeraman Venkitasubrahmanian ,  Ramakrishnan Venkatraman ,  Amr Ghazala

发明人： Sreeraman Venkitasubrahmanian ,  Ramakrishnan Venkatraman ,  Amr Ghazala

IPC分类号： H05B39/00 ,  H05B41/00

CPC分类号： H05B41/2985 ,  H05B41/2858 ,  H05B41/2988

摘要： A striation correction circuit 300 is arranged to apply a first striation correction current to the first fluorescent lamp L1 and a second striation correction current to the second fluorescent lamp L2. A first voltage appearing across the first fluorescent tube L1 due to the first striation correction current is substantially similar in magnitude but has inverted polarity with respect to a second voltage across the second fluorescent tube L2 due to the second striation correction current. Detection of an end-of-life condition of a fluorescent lamp is facilitated.

摘要翻译： 条纹校正电路300被布置成将第一条纹校正电流施加到第一荧光灯L 1，并且向第二荧光灯L 2施加第二条纹校正电流。 由于第一条纹校正电流，出现在第一荧光管L 1上的第一电压在幅度上基本相似，但由于第二条纹校正电流而相对于第二荧光管L 2上的第二电压具有反相极性。 荧光灯的寿命终止状态的检测变得容易。

公开(公告)号：US07486031B2

公开(公告)日：2009-02-03

申请号：US10537008

申请日：2003-11-18

申请人： Sree Venkit ,  Ramakrishnan Venkatraman ,  Amr Ghazala

发明人： Sree Venkit ,  Ramakrishnan Venkatraman ,  Amr Ghazala

IPC分类号： H05B37/02

CPC分类号： H05B41/2985 ,  H05B41/2858 ,  H05B41/2988

摘要： A striation correction circuit 300 is arranged to apply a first striation correction current to the first fluorescent lamp L1 and a second striation correction current to the second fluorescent lamp L2. A first voltage appearing across the first fluorescent tube L1 due to the first striation correction current is substantially similar in magnitude but has inverted polarity with respect to a second voltage across the second fluorescent tube L2 due to the second striation correction current. Detection of an end-of-life condition of a fluorescent lamp is facilitated.

摘要翻译： 条纹校正电路300被配置为向第一荧光灯L1施加第一条纹校正电流，并向第二荧光灯L2施加第二条纹校正电流。 由于第一条纹校正电流而在第一荧光管L1上出现的第一电压在幅度上基本相似，但是由于第二条纹校正电流而相对于第二荧光管L2上的第二电压具有反相极性。 荧光灯的寿命终止状况的检测变得容易。