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26 条记录 (耗时 0.029 秒)

    Light-emitting diode lighting device with step-down chopper
    4.
    发明授权
    Light-emitting diode lighting device with step-down chopper 失效
    具有降压斩光器的发光二极管照明装置

    公开(公告)号：US08305010B2

    公开(公告)日：2012-11-06

    申请号：US12579784

    申请日：2009-10-15

    申请人： Masahiko Kamata ,  Hajime Osaki ,  Hirokazu Otake ,  Shinya Hakuta ,  Takuro Hiramatsu ,  Toshiyuki Hiraoka ,  Naoko Iwai

    发明人： Masahiko Kamata ,  Hajime Osaki ,  Hirokazu Otake ,  Shinya Hakuta ,  Takuro Hiramatsu ,  Toshiyuki Hiraoka ,  Naoko Iwai

    IPC分类号： G05F1/00 ,  H05B37/02 ,  H05B39/04 ,  H05B41/36 ,  H05B37/00 ,  H05B39/00 ,  H05B41/14 ,  H05B39/02 ,  H05B43/00 ,  H05B41/24

    CPC分类号： H05B33/089 ,  H05B33/0887

    摘要： There is provided an LED lighting device having a satisfactory temperature characteristic and a small amount of variation in output current. The step-down chopper is provided with a first circuit including the switching element, the impedance means and a first inductor connected in series and a second circuit including the first inductor and a diode connected in series. A self-excited drive signal generation circuit is provided with a second inductor magnetically coupled with the first inductor and applies a voltage induced in the second inductor to the switching element to keep the switching element on. A turn-off circuit outputs an output voltage when the voltage of the impedance means detected by a comparator exceeds the reference value, and the output voltage allows a switching element to turn on to short-circuit the output terminals of the self-excited drive signal generation circuit, resulting in that the switching element is turned off.

    摘要翻译： 提供了具有令人满意的温度特性和少量的输出电流变化的LED照明装置。 降压斩波器设置有包括开关元件，阻抗装置和串联连接的第一电感器的第一电路和包括串联连接的第一电感器和二极管的第二电路。 自激驱动信号产生电路具有与第一电感器磁耦合的第二电感器，并将在第二电感器中感应的电压施加到开关元件以保持开关元件导通。 当由比较器检测到的阻抗装置的电压超过参考值时，关断电路输出输出电压，并且输出电压允许开关元件导通以使自激驱动信号的输出端短路 导致开关元件断开。

    LIGHT-EMITTING DIODE LIGHTING DEVICE
    5.
    发明申请
    LIGHT-EMITTING DIODE LIGHTING DEVICE 失效
    发光二极管照明设备

    公开(公告)号：US20100097007A1

    公开(公告)日：2010-04-22

    申请号：US12579784

    申请日：2009-10-15

    申请人： Masahiko Kamata ,  Hajime Osaki ,  Hirokazu Otake ,  Shinya Hakuta ,  Takuro Hiramatsu ,  Toshiyuki Hiraoka ,  Naoko Iwai

    发明人： Masahiko Kamata ,  Hajime Osaki ,  Hirokazu Otake ,  Shinya Hakuta ,  Takuro Hiramatsu ,  Toshiyuki Hiraoka ,  Naoko Iwai

    IPC分类号： H05B41/36

    CPC分类号： H05B33/089 ,  H05B33/0887

    摘要： There is provided an LED lighting device having a satisfactory temperature characteristic and a small amount of variation in output current. The step-down chopper is provided with a first circuit including the switching element, the impedance means and a first inductor connected in series and a second circuit including the first inductor and a diode connected in series. A self-excited drive signal generation circuit is provided with a second inductor magnetically coupled with the first inductor and applies a voltage induced in the second inductor to the switching element to keep the switching element on. A turn-off circuit outputs an output voltage when the voltage of the impedance means detected by a comparator exceeds the reference value, and the output voltage allows a switching element to turn on to short-circuit the output terminals of the self-excited drive signal generation circuit, resulting in that the switching element is turned off.

    摘要翻译： 提供了具有令人满意的温度特性和少量的输出电流变化的LED照明装置。 降压斩波器设置有包括开关元件，阻抗装置和串联连接的第一电感器的第一电路和包括串联连接的第一电感器和二极管的第二电路。 自激驱动信号产生电路具有与第一电感器磁耦合的第二电感器，并将在第二电感器中感应的电压施加到开关元件以保持开关元件导通。 当由比较器检测到的阻抗装置的电压超过参考值时，关断电路输出输出电压，并且输出电压允许开关元件导通以使自激驱动信号的输出端短路 导致开关元件断开。

    DISCHARGE LAMP LIGHTING DEVICE
    6.
    发明申请
    DISCHARGE LAMP LIGHTING DEVICE 审中-公开
    放电灯照明装置

    公开(公告)号：US20090134813A1

    公开(公告)日：2009-05-28

    申请号：US12323631

    申请日：2008-11-26

    申请人： Noriyuki Kitamura ,  Hajime Osaki ,  Naoko Iwai ,  Toru Ishikita ,  Masahiko Kamata

    发明人： Noriyuki Kitamura ,  Hajime Osaki ,  Naoko Iwai ,  Toru Ishikita ,  Masahiko Kamata

    IPC分类号： H05B41/36

    CPC分类号： H05B41/295

    摘要： The inverter circuit is feedback-controlled by a substantial current flowing into the discharge lamp, which is detected by the current detecting means. A high starting voltage is supplied to the discharge lamp with the operation frequency lowered by the control circuit after the end of a preheating action. The inverter circuit is controlled so that the current of the discharge lamp becomes a desired current value as soon as the current detecting means detects the current substantially flowing into the discharge lamp. The discharge lamp can be prevented from being instantaneously brightly lit without separately providing any structure for detecting lighting of the discharge lamp.

    摘要翻译： 逆变器电路由流过放电灯的大量电流进行反馈控制，由电流检测装置检测。 在预热动作结束后，通过控制电路降低操作频率，向放电灯提供高启动电压。 控制逆变器电路，一旦电流检测装置检测到基本上流入放电灯的电流，放电灯的电流就变成期望的电流值。 可以防止放电灯瞬时亮起，而不需要单独提供用于检测放电灯的点亮的任何结构。

    LIGHTING DEVICE AND ILLUMINATION APPARATUS
    7.
    发明申请
    LIGHTING DEVICE AND ILLUMINATION APPARATUS 审中-公开
    照明装置和照明装置

    公开(公告)号：US20090108769A1

    公开(公告)日：2009-04-30

    申请号：US12255745

    申请日：2008-10-22

    申请人： Toru Ishikita ,  Hajime Osaki ,  Noriyuki Kitamura ,  Naoko Iwai ,  Isao Yamazaki ,  Shinji Nogi ,  Masatoshi Kumagai ,  Masahiko Kamata

    发明人： Toru Ishikita ,  Hajime Osaki ,  Noriyuki Kitamura ,  Naoko Iwai ,  Isao Yamazaki ,  Shinji Nogi ,  Masatoshi Kumagai ,  Masahiko Kamata

    IPC分类号： H05B37/02

    CPC分类号： H05B41/3927 ,  H05B41/28

    摘要： The present invention provides a lighting device capable of controlling finely modulated light control without stopping other processing regardless of an operation clock. The light modulation signal generating portion calculates a cycle of a PWM signal based on the lighting state of lamp, which is detected by state detecting portion and a predetermined operation clock. A PWM signal of the cycle calculated by the state detecting portion is generated by the light modulation signal generating portion capable of generating the PWM signal corresponding to the cycle of a non-integral number of times of the operation clock, wherein the cycle of the PWM signal can be continuously and finely varied without stopping other processing regardless of operation clocks, and fine modulated light control is enabled.

    摘要翻译： 本发明提供一种能够控制精细调制的光控制而不停止其他处理而不管操作时钟的照明装置。 光调制信号生成部根据由状态检测部检测出的灯的点亮状态和规定的动作时钟来计算PWM信号的周期。 由状态检测部分计算出的周期的PWM信号由能够产生对应于操作时钟的非整数倍的周期的PWM信号的光调制信号产生部分产生，其中PWM的周期 无论操作时钟如何，信号可以连续精细地变化而不停止其他处理，并且能够进行精细的调制光控制。

    Lighting device and luminaire
    8.
    发明授权
    Lighting device and luminaire 失效
    照明设备和灯具

    公开(公告)号：US08643307B2

    公开(公告)日：2014-02-04

    申请号：US13404825

    申请日：2012-02-24

    申请人： Naoko Iwai ,  Masahiko Kamata ,  Hiroshi Terasaka ,  Hitoshi Kawano ,  Yosuke Saito

    发明人： Naoko Iwai ,  Masahiko Kamata ,  Hiroshi Terasaka ,  Hitoshi Kawano ,  Yosuke Saito

    IPC分类号： H05B37/02

    CPC分类号： H05B33/089

    摘要： According to one embodiment, a lighting device includes a control circuit that includes a threshold for a case where a pair of the illumination lamps are connected in series between a positive output end and a negative output end of a power supply circuit, and a threshold for a case where one illumination lamp is connected between the positive output end and the negative output end of the power supply circuit. The control circuit determines the connected lamp number of the illumination lamps to a direct-current power supply device based on a voltage between the positive output end and the negative output end of the power supply circuit and a voltage between a non-potential connection end and the positive output end or the negative output end, and selects the threshold corresponding to the connected lamp number to control the direct-current power supply device.

    摘要翻译： 根据一个实施例，照明装置包括控制电路，该控制电路包括在一对照明灯串联连接在电源电路的正输出端和负输出端之间的阈值，阈值用于 一个照明灯连接在电源电路的正输出端和负输出端之间的情况。 控制电路基于电源电路的正输出端和负输出端之间的电压以及非电位连接端与电位连接端之间的电压来确定照明灯与直流电源装置的连接灯号 正输出端或负输出端，并选择与连接的灯号相对应的阈值来控制直流电源装置。

    DC power supply unit and LED lighting apparatus
    9.
    发明授权
    DC power supply unit and LED lighting apparatus 失效
    直流电源单元和LED照明装置

    公开(公告)号：US08638050B2

    公开(公告)日：2014-01-28

    申请号：US13106487

    申请日：2011-05-12

    申请人： Go Kato ,  Hiroshi Kubota ,  Masahiko Kamata ,  Hiroshi Terasaka ,  Tomokazu Usami ,  Naoko Iwai

    发明人： Go Kato ,  Hiroshi Kubota ,  Masahiko Kamata ,  Hiroshi Terasaka ,  Tomokazu Usami ,  Naoko Iwai

    IPC分类号： H05B37/02 ,  H02H7/12

    CPC分类号： H05B33/0887

    摘要： In one embodiment, a DC power supply unit includes a DC power supply source; a load circuit connected to an output end of the DC power supply source; a load state detection device to detect a load voltage or an electric quantity corresponding to the load voltage; and a control device to receive the detected output of the load state detection device. The control device controls a maximum output voltage of the DC power supply source so that the voltage difference between the maximum output voltage of the DC power supply source and the load voltage at the time of normal operation falls within a predetermined range in which arc discharge is suppressed.

    摘要翻译： 在一个实施例中，直流电源单元包括直流电源; 连接到所述直流电源的输出端的负载电路; 负载状态检测装置，用于检测对应于负载电压的负载电压或电量; 以及控制装置，用于接收检测到的负载状态检测装置的输出。 控制装置控制直流电源的最大输出电压，使得直流电源的最大输出电压与正常工作时的负载电压之间的电压差落在电弧放电为规定范围内的预定范围内 被压制