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23 条记录 (耗时 0.015 秒)

    LIGHTING APPARATUS
    1.
    发明公开
    LIGHTING APPARATUS 审中-公开

    公开(公告)号：EP3886536A2

    公开(公告)日：2021-09-29

    申请号：EP21165268.0

    申请日：2021-03-26

    申请人： LEEDARSON LIGHTING CO., LTD.

    发明人： LIU, Wei ,  LIN, Qiqiang ,  CHEN, Yibin ,  CHEN, Fujie

    IPC分类号： H05B45/31 ,  H05B45/345

    摘要： The lighting apparatus includes a LED module, a constant current source, a bridge rectifier, a silicon-controlled rectifier, a wireless module and a detector. The lighting apparatus receives an alternating current power to generate a light. The constant current source provides a driving current to the LED module. The bridge rectifier converts the alternating current power of a first frequency to a direct current power with a second frequency. The second frequency is two times of the first frequency. The silicon-controlled rectifier is connected to the alternating current power and the bridge rectifier for adjusting the direct current power with a chopping signal. The wireless module receives an external control signal. The detector generates a dimming control signal supplied to the constant current source to adjust the driving current according to both the external control signal and the chopping signal.

    LOAD CONTROLLER
    7.
    发明公开
    LOAD CONTROLLER 审中-公开

    公开(公告)号：EP3661330A1

    公开(公告)日：2020-06-03

    申请号：EP19212556.5

    申请日：2019-11-29

    申请人： Panasonic Intellectual Property Management Co., Ltd.

    发明人： Goto, Shusaku ,  Miyamoto, Kengo

    IPC分类号： H05B45/31 ,  H05B47/19

    摘要： A load controller (1) according to an embodiment includes a switching unit (2), a power source unit (6), and a control unit (4). The switching unit (2) controls supply of power from an AC power supply (B1) to a load (Q1) by selectively connecting or disconnecting the load (Q1) to/from the AC power supply (B1). The power source unit (6) converts AC power supplied from the AC power supply (B1) into DC power. The control unit (4) operates with the DC power supplied from the power source unit (6) and controls the switching unit (2). The power source unit (6) includes a constant-voltage source (11) and a constant-current source (12). The constant-voltage source (11) keeps a DC voltage to be output to the control unit (4) a constant voltage. The constant-current source (12) keeps a DC current to be supplied via the constant-voltage source (11) to the control unit (4) a constant current.

    DIMMING CONTROL OF LIGHTING MODULES
    8.
    发明公开
    DIMMING CONTROL OF LIGHTING MODULES 审中-公开

    公开(公告)号：EP3648548A1

    公开(公告)日：2020-05-06

    申请号：EP19206380.8

    申请日：2019-10-30

    申请人： Eaton Intelligent Power Limited

    发明人： JANIK, Raymond George ,  TRASK, Russell

    IPC分类号： H05B45/10 ,  H05B45/31 ,  H05B45/385

    摘要： A lighting fixture includes a voltage source circuit and a first light module comprising a first current source circuit and a first light emitting diode (LED) light source. The lighting fixture further includes a second light module that includes a second current source circuit and a second LED light source. The voltage source circuit is configured to provide a voltage source output voltage to the first current source circuit and to the second current source circuit. The first current source circuit is configured to provide a first current to the first LED light source. The second current source circuit is configured to provide a second current to the second LED light source. A voltage level of the voltage source output voltage depends on a waveform of a line dimmer output voltage that is provided to the voltage source circuit.

    SILICON-CONTROLLED-RECTIFIER DIAL DUAL-DIMMING DRIVE CIRCUIT, DIMMING DRIVE DEVICE AND LAMP
    10.
    发明公开
    SILICON-CONTROLLED-RECTIFIER DIAL DUAL-DIMMING DRIVE CIRCUIT, DIMMING DRIVE DEVICE AND LAMP 审中-公开

    公开(公告)号：EP4048030A1

    公开(公告)日：2022-08-24

    申请号：EP22152202.2

    申请日：2022-01-19

    申请人： Leedarson Lighting Co., Ltd.

    发明人： WU, Yongqiang ,  YE, Hemu ,  LIN, Qiqiang ,  LIU, Zongyuan ,  LI, Yankun

    IPC分类号： H05B45/31 ,  H05B45/10 ,  H05B45/20

    摘要： The present application provides a silicon-controlled-rectifier dial dual-dimming drive circuit, a dimming drive device and a lamp. A silicon-controlled-rectifier dimmer is adopted to set a corresponding conduction angle to regulate an alternating current, a dial switch module selects a dimming and color-adjusting gear to output a corresponding dimming control signal and color-adjusting control signal, a driving adjusting module adjusts a direct current output by a rectifier module according to the dimming control signal and a current output by a light source assembly, a control module generates a first pulse width modulation signal according to the color-adjusting control signal and sends the first pulse width modulation signal to a color-temperature control module, so as to adjust a switching duty ratio of the color-temperature control module, thereby adjusting the current output by the light source assembly, and the control module generates a second pulse width modulation signal according to the conduction angle of the silicon-controlled-rectifier dimmer and sends the second pulse width modulation signal to the driving adjusting module, so as to adjust the direct current, thereby simultaneously adjusting brightness and a color temperature in different application occasions, and bringing experiences of double dimming curves and different color temperatures to a user.