公开(公告)号：US07432670B2

公开(公告)日：2008-10-07

申请号：US10596332

申请日：2004-11-24

申请人： Koji Yamashita ,  Akihiro Kishimoto ,  Koji Noro ,  Toshiaki Sasaki ,  Noriyuki Fukumori

发明人： Koji Yamashita ,  Akihiro Kishimoto ,  Koji Noro ,  Toshiaki Sasaki ,  Noriyuki Fukumori

IPC分类号： H05B37/02

CPC分类号： H05B41/04 ,  H05B41/042 ,  H05B41/2881 ,  H05B41/2882 ,  H05B41/292 ,  Y10S315/05

摘要： Even if a DC output voltage of a step-down chopper circuit (3) is lowered from a value in a non-lighted state or a no-load state due to a discharge occurring between conductors (105a) in a cable (104), the turn on detection circuit (26a) can discriminates between lighted and non-lighted states without erroneously determining such a discharge as a discharge in a discharge lamp (4). This allows an operation of the timer (29) to be continued, so that high-voltage pulses are intermittently applied to prevent continuous discharge between the conductors (105) and abnormal heat generation in the cable (104). Further, even if a discharge occurs in an outer tube of the discharge lamp (4), the turn on detection circuit (26a) never erroneously discriminates this discharge as the lighted state. Thus, the lighting device of the present invention can suppress abnormal heat generations in the components and a socket (102).

摘要翻译： 即使降低斩波电路（3）的直流输出电压由于在电缆（104）中的导体（105a）之间发生放电而从非点亮状态或空载状态的值降低， 导通检测电路（26a）可以在不发生如放电灯（4）中的放电这样的放电的情况下，区分发光和非点亮状态。 这允许定时器（29）的操作继续进行，使得高压脉冲被间歇地施加以防止导体（105）之间的连续放电和电缆（104）中的异常发热。 此外，即使在放电灯（4）的外管中发生放电，导通检测电路（26a）也不会将该放电误认为点亮状态。 因此，本发明的照明装置可以抑制部件和插座（102）中的异常发热。

公开(公告)号：US20070063659A1

公开(公告)日：2007-03-22

申请号：US10596332

申请日：2004-11-24

申请人： Koji YAamashita ,  Akihiro KIishimoto ,  Koji Noro ,  Toshiaki Sasaki ,  Noriyuki Fukumori

发明人： Koji YAamashita ,  Akihiro KIishimoto ,  Koji Noro ,  Toshiaki Sasaki ,  Noriyuki Fukumori

IPC分类号： H05B37/02

CPC分类号： H05B41/04 ,  H05B41/042 ,  H05B41/2881 ,  H05B41/2882 ,  H05B41/292 ,  Y10S315/05

摘要： Even if a DC output voltage of a step-down chopper circuit (3) is lowered from a value in a non-lighted state or a no-load state due to a discharge occurring between conductors (105a) in a cable (104), the turn on detection circuit (26a) can discriminates between lighted and non-lighted states without erroneously determining such a discharge as a discharge in a discharge lamp (4). This allows an operation of the timer (29) to be continued, so that high-voltage pulses are intermittently applied to prevent continuous discharge between the conductors (105) and abnormal heat generation in the cable (104). Further, even if a discharge occurs in an outer tube of the discharge lamp (4), the turn on detection circuit (26a) never erroneously discriminates this discharge as the lighted state. Thus, the lighting device of the present invention can suppress abnormal heat generations in the components and a socket (102).

摘要翻译： 即使降低斩波电路（3）的直流输出电压由于在电缆（104）中的导体（105a）之间发生放电而从非点亮状态或空载状态的值降低， 导通检测电路（26a）可以在不发生如放电灯（4）中的放电这样的放电的情况下，区分发光和非点亮状态。 这允许定时器（29）的操作继续进行，使得高压脉冲被间歇地施加以防止导体（105）之间的连续放电和电缆（104）中的异常发热。 此外，即使在放电灯（4）的外管中发生放电，导通检测电路（26a）也不会将该放电误认为点亮状态。 因此，本发明的照明装置可以抑制部件和插座（102）中的异常发热。

公开(公告)号：US07557523B2

公开(公告)日：2009-07-07

申请号：US11577891

申请日：2005-09-16

申请人： Takeshi Goriki ,  Koji Noro ,  Noriyuki Fukumori ,  Kenichi Fukuda

发明人： Takeshi Goriki ,  Koji Noro ,  Noriyuki Fukumori ,  Kenichi Fukuda

IPC分类号： H05B41/36

CPC分类号： H05B41/2923 ,  G01R31/028 ,  G01R31/24 ,  H02M7/48 ,  H05B41/2886 ,  H05B41/2926 ,  Y02B20/202 ,  Y02B20/208

摘要： A level shift IC (3b) of a power supply/shutoff section (3) is operable, when a shutoff signal (Sa) is input from a timer circuit (8) for a time T during an ON state of a discharge lamp (7), to turn off a MOSFET (3a) so as to shut off power supply to a smoothing capacitor (4). When a detection signal (Sb) of a capacitor voltage is lowered to a value less than a reference voltage Vr1 during input of the shutoff signal (Sa), an output of a comparator (10) is changed from an H level to an L level in an inverted manner. In conjunction with this change, respective outputs of an auxiliary control circuit (12) and a NOT element (12a, 12b) are changed from an L level to an H level in an inverted manner. As a result, a current flows from the NOT element (12a) to an LED (13b) through a resistor (13a) to turn on the LED (13b). Thus, a life end of the smoothing capacitor 4 is annunciated, and a main control circuit (6) is operable to suppress an output of an inverter main circuit (5).

摘要翻译： 当在放电灯（7）的导通状态期间从定时器电路（8）输入关闭时间T的关闭信号（Sa）时，电源/截止部分（3）的电平转换IC（3b） ），以关断MOSFET（3a）以便切断对平滑电容器（4）的电源。 当在关断信号（Sa）的输入期间电容器电压的检测信号（Sb）降低到小于参考电压Vr1的值时，比较器（10）的输出从H电平变为L电平 以倒置的方式。 结合该变化，辅助控制电路（12）和NOT元件（12a，12b）的各个输出以反相方式从L电平变为H电平。 结果，电流通过电阻器（13a）从NOT元件（12a）流向LED（13b），以导通LED（13b）。 因此，平滑电容器4的寿命结束，并且主控制电路（6）可操作以抑制逆变器主电路（5）的输出。

公开(公告)号：US20080030143A1

公开(公告)日：2008-02-07

申请号：US11577891

申请日：2005-09-16

申请人： Takeshi Goriki ,  Koji Noro ,  Noriyuki Fukumori ,  Kenichi Fukuda

发明人： Takeshi Goriki ,  Koji Noro ,  Noriyuki Fukumori ,  Kenichi Fukuda

IPC分类号： H05B37/02 ,  G01R31/00

CPC分类号： H05B41/2923 ,  G01R31/028 ,  G01R31/24 ,  H02M7/48 ,  H05B41/2886 ,  H05B41/2926 ,  Y02B20/202 ,  Y02B20/208

摘要： A level shift IC (3b) of a power supply/shutoff section (3) is operable, when a shutoff signal (Sa) is input from a timer circuit (8) for a time T during an ON state of a discharge lamp (7), to turn off a MOSFET (3a) so as to shut off power supply to a smoothing capacitor (4). When a detection signal (Sb) of a capacitor voltage is lowered to a value less than a reference voltage Vr1 during input of the shutoff signal (Sa), an output of a comparator (10) is changed from an H level to an L level in an inverted manner. In conjunction with this change, respective outputs of an auxiliary control circuit (12) and a NOT element (12a, 12b) are changed from an L level to an H level in an inverted manner. As a result, a current flows from the NOT element (12a) to an LED (13b) through a resistor (13a) to turn on the LED (13b). Thus, a life end of the smoothing capacitor 4 is annunciated, and a main control circuit (6) is operable to suppress an output of an inverter main circuit (5).

摘要翻译： 当在放电灯的导通状态期间从定时器电路（8）输入一截止信号（Sa）一段时间T时，可操作电源/截止部分（3）的电平移位IC（3b） 7），关断MOSFET（3a），以便切断对平滑电容器（4）的电源。 当在关断信号（Sa）的输入期间电容器电压的检测信号（Sb）降低到小于参考电压Vr 1的值时，比较器（10）的输出从H电平变为L 水平反转。 结合该变化，辅助控制电路（12）和NOT元件（12a，12b）的各个输出以反相方式从L电平变为H电平。 结果，电流通过电阻器（13a）从NOT元件（12a）流向LED（13b），以接通LED（13b）。 因此，平滑电容器4的寿命结束，并且主控制电路（6）可操作以抑制逆变器主电路（5）的输出。