LED luminescence apparatus and method of driving the same
    2.
    发明授权
    LED luminescence apparatus and method of driving the same 有权
    LED发光装置及其驱动方法

    公开(公告)号:US09101019B2

    公开(公告)日:2015-08-04

    申请号:US13360477

    申请日:2012-01-27

    IPC分类号: H05B37/00 H05B33/08

    摘要: An LED luminescence apparatus includes a plurality of LED units connected in series which are configured to receive a unidirectional ripple voltage, a plurality of switch units, one end of each being connected to the cathode of one of the plurality of LED units, a plurality of constant current control circuit units, one end of each being connected to an another end of a respective switch unit to receive a current from the respective switch unit, each of the constant current control circuit units being configured to output a current control signal to the respective switch unit to control a magnitude of the received current to have a specific value, and a current comparison unit to receive currents flowing from the plurality of switching units, and generate a plurality of switching control signals for the respective switch units to sequentially drive the plurality of constant current control circuit units.

    摘要翻译: LED发光装置包括串联连接的多个LED单元,其被配置为接收单向纹波电压;多个开关单元,其一端连接到所述多个LED单元之一的阴极,多个 恒流控制电路单元,其一端连接到相应开关单元的另一端以接收来自相应开关单元的电流,每个恒流控制电路单元被配置为将电流控制信号输出到相应的开关单元 开关单元以控制接收电流的大小以具有特定值;以及电流比较单元,用于接收从多个开关单元流出的电流,并且产生用于各个开关单元的多个开关控制信号以顺序地驱动多个开关单元 的恒流控制电路单元。

    LED LUMINESCENCE APPARATUS AND METHOD OF DRIVING THE SAME
    3.
    发明申请
    LED LUMINESCENCE APPARATUS AND METHOD OF DRIVING THE SAME 有权
    LED发光装置及其驱动方法

    公开(公告)号:US20130026931A1

    公开(公告)日:2013-01-31

    申请号:US13360477

    申请日:2012-01-27

    IPC分类号: H05B37/02

    摘要: An LED luminescence apparatus includes a plurality of LED units connected in series which are configured to receive a unidirectional ripple voltage, a plurality of switch units, one end of each being connected to the cathode of one of the plurality of LED units, a plurality of constant current control circuit units, one end of each being connected to an another end of a respective switch unit to receive a current from the respective switch unit, each of the constant current control circuit units being configured to output a current control signal to the respective switch unit to control a magnitude of the received current to have a specific value, and a current comparison unit to receive currents flowing from the plurality of switching units, and generate a plurality of switching control signals for the respective switch units to sequentially drive the plurality of constant current control circuit units.

    摘要翻译: LED发光装置包括串联连接的多个LED单元,其被配置为接收单向纹波电压;多个开关单元,其一端连接到所述多个LED单元之一的阴极,多个 恒流控制电路单元,其一端连接到相应开关单元的另一端以接收来自相应开关单元的电流,每个恒流控制电路单元被配置为将电流控制信号输出到相应的开关单元 开关单元以控制接收电流的大小以具有特定值;以及电流比较单元,用于接收从多个开关单元流出的电流,并且产生用于各个开关单元的多个开关控制信号以顺序地驱动多个开关单元 的恒流控制电路单元。