公开(公告)号：US06392364B1

公开(公告)日：2002-05-21

申请号：US09597733

申请日：2000-06-19

申请人： Noboru Yamamoto ,  Yasutoshi Horii ,  Hiroaki Okuchi ,  Hiromi Hiramatsu ,  Kenji Yoneima ,  Yuji Kajita ,  Masamichi Ishikawa ,  Goichi Oda ,  Tomoyuki Ichikawa ,  Yukinobu Hiranaka ,  Yasushi Noyori

发明人： Noboru Yamamoto ,  Yasutoshi Horii ,  Hiroaki Okuchi ,  Hiromi Hiramatsu ,  Kenji Yoneima ,  Yuji Kajita ,  Masamichi Ishikawa ,  Goichi Oda ,  Tomoyuki Ichikawa ,  Yukinobu Hiranaka ,  Yasushi Noyori

IPC分类号： G05F100

CPC分类号： H05B41/2923 ,  F21S41/192 ,  H03K17/08 ,  H03K17/16 ,  H05B41/02 ,  H05B41/2886 ,  H05B41/2888 ,  Y02B20/202 ,  Y10S315/07

摘要： A hybrid IC of electronic circuit for a discharge lamp is disposed on the bottom of a metal case. A transformer, an inductor, a transformer, and a capacitor are disposed in a resin case. The resin case is contained in a metal case. In this instance, the transformer, the inductor, the transformer, and the capacitor are located outside the outer periphery of the IC so that the IC does not overlap on the transformer and other components. The transformer for a starter circuit has a secondary winding the inductance of which is 2.5 mH or larger, and a capacitance of a smoothing capacitor of a DC—DC converter is 0.5 &mgr;F or smaller. The switching frequency f of a MOS transistor is selected so that L2×C1 is equal to or larger than 1×10−1×f−1.68.

摘要翻译： 用于放电灯的电子电路的混合IC设置在金属外壳的底部。 变压器，电感器，变压器和电容器设置在树脂盒中。 树脂盒包含在金属外壳中。 在这种情况下，变压器，电感器，变压器和电容器位于IC外部的外部，使得IC不会在变压器和其他部件上重叠。 起动电路用变压器的电感为2.5mH以上的次级绕组，DC-DC转换器的平滑电容器的电容为0.5μF以下。 选择MOS晶体管的开关频率f，使得L2xC1等于或大于1×10-1×f-1.68。

公开(公告)号：US20070159736A1

公开(公告)日：2007-07-12

申请号：US11651131

申请日：2007-01-09

申请人： Yuji Kajita

发明人： Yuji Kajita

IPC分类号： H02H7/00

CPC分类号： H05B33/089 ,  H05B33/0815 ,  Y02B20/341

摘要： A LED-based lamp apparatus includes a LED unit having multiple LEDs connected in series, a step-up circuit for stepping up a power supply voltage by a switching action of a switching element to supply an electric current to the LED unit, a sensing element for measuring a value of the current, and a controlling element connected in series with the LED unit to control the current based on the measured current value. When some of the LEDs of the LED unit are broken and short-circuited due to, for example, long-term use, the current increases instantaneously and an overcurrent condition occurs. In this case, the controlling element limits the current immediately to correct the overcurrent condition. Thus, the controlling element prevents the overcurrent condition from causing a secondary failure to normal LEDs of the LED unit.

摘要翻译： 一种基于LED的灯装置，包括具有串联连接的多个LED的LED单元，用于通过开关元件的开关动作来提高电源电压以提供LED单元的电流的升压电路;感测元件 用于测量电流值，以及与LED单元串联连接的控制元件，以基于测量的电流值来控制电流。 当LED单元的一些LED由于例如长期使用而损坏和短路时，电流瞬时增加并且发生过电流状况。 在这种情况下，控制元件立即限制电流来校正过电流状况。 因此，控制元件防止过电流状态对LED单元的正常LED造成二次故障。

公开(公告)号：US07402960B2

公开(公告)日：2008-07-22

申请号：US11651131

申请日：2007-01-09

申请人： Yuji Kajita

发明人： Yuji Kajita

IPC分类号： H05B37/02

CPC分类号： H05B33/089 ,  H05B33/0815 ,  Y02B20/341

摘要： A LED-based lamp apparatus includes a LED unit having multiple LEDs connected in series, a step-up circuit for stepping up a power supply voltage by a switching action of a switching element to supply an electric current to the LED unit, a sensing element for measuring a value of the current, and a controlling element connected in series with the LED unit to control the current based on the measured current value. When some of the LEDs of the LED unit are broken and short-circuited due to, for example, long-term use, the current increases instantaneously and an overcurrent condition occurs. In this case, the controlling element limits the current immediately to correct the overcurrent condition. Thus, the controlling element prevents the overcurrent condition from causing a secondary failure to normal LEDs of the LED unit.

摘要翻译： 一种基于LED的灯装置，包括具有串联连接的多个LED的LED单元，用于通过开关元件的开关动作来提高电源电压以提供LED单元的电流的升压电路;感测元件 用于测量电流值，以及与LED单元串联连接的控制元件，以基于测量的电流值来控制电流。 当LED单元的一些LED由于例如长期使用而损坏和短路时，电流瞬时增加并且发生过电流状况。 在这种情况下，控制元件立即限制电流来校正过电流状况。 因此，控制元件防止过电流状态对LED单元的正常LED造成二次故障。

公开(公告)号：US08776769B2

公开(公告)日：2014-07-15

申请号：US12707919

申请日：2010-02-18

申请人： Yuji Kajita

发明人： Yuji Kajita

IPC分类号： F02P3/02 ,  F02P3/06 ,  F02P9/00 ,  F02P3/08

CPC分类号： F02P3/0846 ,  F02P9/007

摘要： The plasma ignition device includes an ignition plug, a breakdown discharge circuit configured to apply a high voltage to the ignition plug to cause a breakdown discharge in a discharge space in the ignition plug, and a plasma discharge circuit configured to accumulate electric energy supplied from a power supply and applies the accumulated electric energy to the ignition plug as a current to bring a gas in the discharge space into a plasma state so that the gas in the plasma state is injected to a combustion chamber of an combustion engine during the breakdown discharge in order to cause ignition. The plasma discharge circuit includes an energy accumulating section, and an energy supplying section configured to supply the electric energy to the energy accumulating section during a short time period immediately before the breakdown discharge circuit applies the first voltage to the ignition plug.

摘要翻译： 等离子体点火装置包括火花塞，击穿放电电路，其配置为向火花塞施加高电压以引起火花塞放电空间中的击穿放电;等离子体放电电路，其被配置为累积从 供电并将累积的电能施加到火花塞作为电流，以使放电空间中的气体进入等离子体状态，使得等离子体状态的气体在击穿放电期间被喷射到内燃机的燃烧室 命令引起点火。 等离子体放电电路包括能量积蓄部分，能量供应部分被配置为在击穿放电电路将第一电压施加到火花塞之前的短时间内将能量提供给能量积聚部分。

公开(公告)号：US5619115A

公开(公告)日：1997-04-08

申请号：US376917

申请日：1995-01-23

申请人： Yuji Kajita

发明人： Yuji Kajita

IPC分类号： F02P3/08 ,  G05F3/26 ,  H01M10/46

CPC分类号： G05F3/265

摘要： A charging and discharging integration circuit packed in an IC package is disclosed. A charging current is transferred from a constant voltage source to a capacitor element through a first external terminal and a charging resistor placed outside the IC package. The capacitor element is grounded. A driving current is transferred from the constant voltage source to a current limit driving circuit through a discharging resistor placed outside the IC package through first and second external terminals. A discharging current composed of the charging current and a capacitor current flowing from the capacitor element passes a current limiting circuit through a third external terminal. The driving and discharging current are discharged to the earth through a fourth external terminal. The driving current is controlled by a comparing circuit in which a voltage of the driving current is almost equalized with a capacitor voltage of the capacitor element, so that a value of the driving current is proportional to a voltage difference between the constant voltage source and the capacitor element. The discharging current is adjusted by the current limit driving circuit in proportion to tile driving current, so that the value of the driving current is proportional to the voltage difference.

摘要翻译： 公开了一种封装在IC封装中的充放电集成电路。 充电电流通过位于IC封装外部的第一外部端子和充电电阻器从恒定电压源传送到电容器元件。 电容元件接地。 驱动电流通过位于IC封装外部的放电电阻器通过第一和第二外部端子从恒定电压源传送到限流驱动电路。 由充电电流和从电容器元件流出的电容器电流构成的放电电流通过第三外部端子通过限流电路。 驱动和放电电流通过第四个外部端子排放到地球。 驱动电流由比较电路控制，其中驱动电流的电压几乎与电容器元件的电容器电压相等，使得驱动电流的值与恒定电压源和 电容元件。 放电电流通过电流限制驱动电路与瓦片驱动电流成比例地调节，使得驱动电流的值与电压差成比例。

公开(公告)号：US20100206277A1

公开(公告)日：2010-08-19

申请号：US12707919

申请日：2010-02-18

申请人： Yuji Kajita

发明人： Yuji Kajita

IPC分类号： F02P3/02 ,  F02P23/00 ,  F02P5/15

CPC分类号： F02P3/0846 ,  F02P9/007

摘要： The plasma ignition device includes an ignition plug, a breakdown discharge circuit configured to apply a high voltage to the ignition plug to cause a breakdown discharge in a discharge space in the ignition plug, and a plasma discharge circuit configured to accumulate electric energy supplied from a power supply and applies the accumulated electric energy to the ignition plug as a current to bring a gas in the discharge space into a plasma state so that the gas in the plasma state is injected to a combustion chamber of an combustion engine during the breakdown discharge in order to cause ignition. The plasma discharge circuit includes an energy accumulating section, and an energy supplying section configured to supply the electric energy to the energy accumulating section during a short time period immediately before the breakdown discharge circuit applies the first voltage to the ignition plug.

摘要翻译： 等离子体点火装置包括火花塞，击穿放电电路，其配置为向火花塞施加高电压以引起火花塞放电空间中的击穿放电;等离子体放电电路，其被配置为累积从 供电并将累积的电能施加到火花塞作为电流，以使放电空间中的气体进入等离子体状态，使得等离子体状态的气体在击穿放电期间被喷射到内燃机的燃烧室 命令引起点火。 等离子体放电电路包括能量积蓄部分，能量供应部分被配置为在击穿放电电路将第一电压施加到火花塞之前的短时间内将能量提供给能量积聚部分。

公开(公告)号：US07755295B2

公开(公告)日：2010-07-13

申请号：US11651865

申请日：2007-01-10

申请人： Yuji Kajita ,  Naohito Kato

发明人： Yuji Kajita ,  Naohito Kato

IPC分类号： B60Q1/02

CPC分类号： H05B33/0893 ,  H05B33/0815 ,  Y02B20/347

摘要： A head lamp device for a vehicle includes a DC power source, a diode array having a plurality of series-connected light emitting diodes and a current control circuit that supplies driving current to the diode array. The current control circuit is constituted of a current supply circuit, a voltage measuring circuit, a comparing circuit that compares the voltage drop with a reference value, a judging circuit for judging that there is a short-circuiting at any of the light emitting diodes based on the comparison by the comparing circuit, and a display unit for displaying an alarm when the judging circuit judges that there is a short-circuiting.

摘要翻译： 用于车辆的前照灯装置包括直流电源，具有多个串联连接的发光二极管的二极管阵列和向二极管阵列提供驱动电流的电流控制电路。 电流控制电路由电流供给电路，电压测量电路，将电压降与参考值进行比较的比较电路构成，用于判断任何发光二极管基于短路的判断电路 通过比较电路进行比较，以及显示单元，用于当判断电路判断出存在短路时显示报警。

公开(公告)号：US20070159118A1

公开(公告)日：2007-07-12

申请号：US11651865

申请日：2007-01-10

申请人： Yuji Kajita ,  Naohito Kato

发明人： Yuji Kajita ,  Naohito Kato

IPC分类号： H05B39/00

CPC分类号： H05B33/0893 ,  H05B33/0815 ,  Y02B20/347

摘要： A head lamp device for a vehicle includes a DC power source, a diode array having a plurality of series-connected light emitting diodes and a current control circuit that supplies driving current to the diode array. The current control circuit is constituted of a current supply circuit, a voltage measuring circuit, a comparing circuit that compares the voltage drop with a reference value, a judging circuit for judging that there is a short-circuiting at any of the light emitting diodes based on the comparison by the comparing circuit, and a display unit for displaying an alarm when the judging circuit judges that there is a short-circuiting.

摘要翻译： 用于车辆的前照灯装置包括直流电源，具有多个串联连接的发光二极管的二极管阵列和向二极管阵列提供驱动电流的电流控制电路。 电流控制电路由电流供给电路，电压测量电路，将电压降与参考值进行比较的比较电路构成，用于判断任何发光二极管基于短路的判断电路 通过比较电路进行比较，以及显示单元，用于当判断电路判断出存在短路时显示报警。