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    Lighting device and luminaire
    6.
    发明授权
    Lighting device and luminaire 有权

    公开(公告)号：US09999104B2

    公开(公告)日：2018-06-12

    申请号：US15047446

    申请日：2016-02-18

    Applicant: Panasonic Intellectual Property Management Co., Ltd.

    Inventor： Masahiro Naruo ,  Kenichi Fukuda ,  Shinji Makimura ,  Akira Nakajo

    IPC: H05B33/08

    CPC classification number: H05B33/0815 ,  H05B33/0827 ,  H05B33/0866

    Abstract: A lighting device that supplies current to light-emitting units includes: a DC-to-DC converter; a switch unit connected to the light-emitting units; and a control circuit which controls the DC-to-DC converter and the switch unit. The DC-to-DC converter includes: an inductor through which current from the DC-to-DC converter is provided to the light-emitting units; and a first switch element connected in series with the inductor and which switches ON/OFF. The control circuit includes: a zero-crossing detector that detects that current flowing in the inductor is substantially zero due to the first switch element switching OFF, and outputs a zero-current detection signal; and a switch controller that selects one of the light-emitting units and controls the switch unit to cause the current from the DC-to-DC converter to be supplied to the selected light-emitting unit when the first switch element subsequently switches ON, each time the switch controller receives the zero-current detection signal.

    Lighting device, luminaire, and lighting system
    7.
    发明授权
    Lighting device, luminaire, and lighting system 有权
    照明设备，灯具和照明系统

    公开(公告)号：US09414457B2

    公开(公告)日：2016-08-09

    申请号：US14831398

    申请日：2015-08-20

    Applicant: Panasonic Intellectual Property Management Co., Ltd.

    Inventor： Kenichi Fukuda ,  Sana Yagi

    IPC: H05B33/08

    CPC classification number: H05B33/0857 ,  H05B33/0815 ,  H05B33/0863

    Abstract: A lighting device includes: a first input terminal for receiving an AC voltage phase-controlled by a first phase-control dimmer; a first light source unit which emits light of a first color; a second light source unit which emits light of a second color different from the first color; a control circuit which controls a total amount of light emitted from the first and second light source units and the color of combined light including the light emitted from the first and second light source units. The control signal includes first and second control information. The first control information is for controlling either one of the total amount of light and the color of combined light, and corresponds to the conduction angle of the first phase-control dimmer. The second control information is for controlling the other of the total amount of light and the color of combined light.

    Abstract translation: 照明装置包括：第一输入端子，用于接收由第一相位控制调光器相位控制的AC电压; 第一光源单元，其发射第一颜色的光; 第二光源单元，其发射与第一颜色不同的第二颜色的光; 控制电路，其控制从第一和第二光源单元发射的光的总量以及包括从第一和第二光源单元发射的光的组合光的颜色。 控制信号包括第一和第二控制信息。 第一控制信息用于控制总光量和组合光的颜色之一，并且对应于第一相位控制调光器的导通角。 第二控制信息用于控制总光量和组合光的颜色中的另一个。

    Lighting device, luminaire, vehicle with same, and control method
    8.
    发明授权
    Lighting device, luminaire, vehicle with same, and control method 有权

    公开(公告)号：US10231312B2

    公开(公告)日：2019-03-12

    申请号：US15694821

    申请日：2017-09-03

    Applicant: Panasonic Intellectual Property Management Co., Ltd.

    Inventor： Kazuya Kato ,  Toshiaki Nakamura ,  Akihiro Kishimoto ,  Kenichi Fukuda

    IPC: B60Q1/04 ,  H05B33/08 ,  B60Q11/00

    Abstract: In a lighting device, when determining that both of a first measuring value and a second measuring value are not an abnormal value, a controller is configured to control an output of a power converter based on the first and second measuring values. The first measuring value is a temperature inside a main body of the lighting device, sensed by a first temperature sensor. The second measuring value is a temperature of a light source, sensed by a second temperature sensor. When determining that at least one of the first and second measuring values is the abnormal value, the controller is configured to control the output of the power converter to another value that is different from a value of the output set based on the first and second measuring values.

    Lighting apparatus and lighting fixture using same
    10.
    发明授权
    Lighting apparatus and lighting fixture using same 有权
    照明设备和照明灯具使用相同

    公开(公告)号：US09204511B2

    公开(公告)日：2015-12-01

    申请号：US14433785

    申请日：2013-10-10

    Applicant: Panasonic Intellectual Property Management Co., Ltd.

    Inventor： Sana Esaki ,  Masahiro Naruo ,  Kenichi Fukuda

    IPC: H05B37/02 ,  H05B33/08 ,  H02M3/156

    CPC classification number: H05B33/0845 ,  H02M3/156 ,  H05B33/0815 ,  H05B33/0818 ,  H05B33/0821 ,  H05B33/0857

    Abstract: A lighting apparatus includes a chopper circuit and a control circuit that controls the chopper circuit. The control circuit includes a determining unit that determines a duty ratio of a dimming signal, and an output control unit that outputs a drive signal. The control circuit outputs a drive signal from the output control unit according to a result of a determination by the determining unit and causes the solid state light-emitting element to be lighted in a normal mode. In the charging mode, the control circuit sets an average value of a current flowing through an inductor to be higher than in the normal mode and charges a smoothing capacitor until a voltage across the smoothing capacitor reaches a prescribed voltage. When power is supplied, the control circuit charges the smoothing capacitor in the charging mode and subsequently lights the solid state light-emitting element in the normal mode.

    Abstract translation: 照明装置包括斩波电路和控制斩波电路的控制电路。 控制电路包括确定调光信号的占空比的确定单元和输出驱动信号的输出控制单元。 控制电路根据确定单元的确定结果从输出控制单元输出驱动信号，并使固态发光元件以正常模式点亮。 在充电模式中，控制电路将流过电感器的电流的平均值设定为高于正常模式，并对平滑电容器充电直到平滑电容器两端的电压达到规定电压。 当供电时，控制电路在充电模式下对平滑电容器充电，随后在正常模式下点亮固态发光元件。

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