AC LED driving circuit
    1.
    发明授权

    公开(公告)号:US09615419B2

    公开(公告)日:2017-04-04

    申请号:US14592360

    申请日:2015-01-08

    Inventor: So-Bong Shin

    Abstract: Disclosed herein is an AC LED driving circuit. The AC LED driving circuit includes a power supply unit. An LED driving unit includes an LED lighting unit having a first LED unit to an n-th LED unit, and a plurality of switching circuit units. A dimmer driving unit includes a VCCS, an input terminal and an output terminal of which are respectively connected to a connection line between the output terminal of the rectification circuit and the first LED unit and to an output terminal of the switching circuit units, a reference voltage supply unit, and a common resistor, a first end of which is connected to a negative terminal of the reference voltage supply unit, and a second end of which is connected in common to an output line of the VCCS and to an output terminal of the switching circuit units.

    Substrate structure for LED lighting

    公开(公告)号:US10520140B2

    公开(公告)日:2019-12-31

    申请号:US16097949

    申请日:2016-07-20

    Abstract: The present invention relates to a substrate structure for LED lighting, the structure being capable of improving the hemispherical intensity distribution of a lighting device in which an LED is used, thereby improving the light efficiency of the lighting device. The substrate structure includes a first substrate for mounting a first LED thereon and three second substrates, each for mounting a second LED thereon. The second substrates are coupled to the first substrate such that the second substrates are perpendicular to the first substrate and are arranged at an angular interval which is within a range of 115° to 125° with respect to each other in a cross-sectional view taken parallel to the first substrate. One or more second substrates of the three second substrates are provided with one or more control circuits for controlling operation of either of or both of the first LED and the second LED, in which the control circuit is disposed in an end portion of the second substrate in a direction perpendicular to the first substrate.

    AC LED driving circuit
    4.
    发明授权

    公开(公告)号:US09603215B2

    公开(公告)日:2017-03-21

    申请号:US14413759

    申请日:2014-10-28

    CPC classification number: H05B33/0851 H05B33/0809 H05B33/0824 H05B33/083

    Abstract: The present invention relates to an AC LED driving circuit that can greatly improve flicker-free characteristics and implement an excellent power factor. The AC LED driving circuit according to the present invention includes an LED lighting unit connected to an output terminal of a power supply unit, a current channel switching unit connected to an output terminal of the LED lighting unit to form a current supply channel for the LED lighting unit, a voltage charging unit connected in parallel with a connection line between the power supply unit and the LED lighting unit and configured to charge a voltage from the power supply unit, and have a switching function for the LED lighting unit to selectively supply a charged voltage to the LED lighting unit, and a charged voltage switching control unit for controlling a switching function of the voltage charging unit.

    Dimming system of lamp using light-emitting device
    5.
    发明授权
    Dimming system of lamp using light-emitting device 有权
    使用发光装置的灯的调光系统

    公开(公告)号:US09144128B2

    公开(公告)日:2015-09-22

    申请号:US14201245

    申请日:2014-03-07

    CPC classification number: H05B33/083

    Abstract: A dimming system of a lamp using a light-emitting device includes: a power source including a power input terminal, a dimmer connected to the power input terminal, and a rectifier circuit; a lighting unit including light-emitting devices from a first light-emitting device to an nth light-emitting device; a light-emitting drive unit including a plurality of switching circuits individually connected to an output terminal of each of the light-emitting devices, and dimmer control circuits connected to the switching circuits of the first light-emitting device and configured to sense whether or not a current supply channel for the first light-emitting device is normally operated, and to output a control signal; and a dimmer drive unit parallel-connected to a connection line between the power source and a power input terminal of the first light-emitting device to form a bleeding current supply channel, and having a switch.

    Abstract translation: 使用发光装置的灯的调光系统包括:电源,包括电源输入端子,连接到电力输入端子的调光器和整流器电路; 照明单元,其包括从第一发光器件到第n发光器件的发光器件; 发光驱动单元,其包括分别连接到每个发光器件的输出端子的多个开关电路,以及连接到第一发光器件的开关电路的调光控制电路,并且被配置为感测是否 正常地操作第一发光装置的电流供给通道,并输出控制信号; 以及调光驱动单元,其并联连接到所述电源和所述第一发光装置的电力输入端子之间的连接线,以形成出血电流供应通道,并具有开关。

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