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    ANODE ADDRESSING DRIVE CIRCUIT, ADDRESSABLE DRIVE CIRCUIT AND LASER EMISSION CIRCUIT
    2.
    发明公开
    ANODE ADDRESSING DRIVE CIRCUIT, ADDRESSABLE DRIVE CIRCUIT AND LASER EMISSION CIRCUIT 审中-公开

    公开(公告)号：EP4207950A1

    公开(公告)日：2023-07-05

    申请号：EP22216883.3

    申请日：2022-12-28

    申请人： Suteng Innovation Technology Co., Ltd

    发明人： LI, Lee

    IPC分类号： H05B45/44 ,  G01S17/894 ,  H01S5/40

    摘要： This application discloses an anode addressing drive circuit, an addressable drive circuit, and a laser emission circuit. The anode addressing drive circuit includes: an anode addressing switch circuit, including an anode addressing switch element, where a first end of the anode addressing switch element is connected to an emission power supply, a second end is connected to an anode energy storage circuit, the anode addressing enabling end receives an anode addressing signal, and the anode addressing switch element is turned on or off under control of the anode addressing signal; and an anode energy storage circuit, including an anode energy storage element and a current limiting element, where the anode energy storage element is configured to be charged through output current from the emission power supply when the anode addressing switch circuit is turned on, and the current limiting element is configured to limit current for charging the anode energy storage element. In this application, current flowing through a parasitic capacitor to the laser is controlled to be less than the light emission current threshold of the laser when the anode energy storage element stores energy, thereby avoiding light leakage and consequential false light emission of the laser caused by the parallel parasitic capacitor in a charging stage and improving the light emission control accuracy of the laser array.

    ALTERNATING CURRENT SOURCE DIRECT DRIVING LED LIGHTING DEVICE
    5.
    发明公开
    ALTERNATING CURRENT SOURCE DIRECT DRIVING LED LIGHTING DEVICE 审中-公开

    公开(公告)号：EP3952614A1

    公开(公告)日：2022-02-09

    申请号：EP19922752.1

    申请日：2019-12-31

    申请人： Gong, Myeong-Kook ,  Gong, Da-Young

    发明人： Gong, Myeong-Kook ,  Gong, Da-Young

    IPC分类号： H05B45/345 ,  H05B45/44 ,  H05B45/50

    摘要： Disclosed is an AC source direct driving LED lighting device. The device comprises: a light emitting unit which has a first electrolytic capacitor and receives a rectified alternating current (AC) voltage to adjust a first constant current and emits an LED array; a charging/discharging unit which receives the adjusted first constant current to be adjusted to second to fourth constant currents and charges/discharges second to fourth electrolytic capacitors embedded therein, respectively; a discharge LED path unit which forms a path through which a voltage charged in the charging/discharging unit is discharged to the light emitting unit; and a current driving unit which receives the adjusted first to fourth constant currents to form first to fourth channel using first to fourth reference voltages and controls current transfer.