Apparatus, method and system for providing AC line power to lighting devices

    公开(公告)号:US10231301B2

    公开(公告)日:2019-03-12

    申请号:US15811518

    申请日:2017-11-13

    摘要: An apparatus, method and system are disclosed for providing AC line power to lighting devices such as light emitting diodes (“LEDs”). A representative apparatus comprises: a plurality of LEDs coupled in series to form a plurality of segments of LEDs; first and second current regulators; a current sensor; and a controller to monitor a current level through a series LED current path, and to provide for first or second segments of LEDs to be in or out of the series LED current path at different current levels. A voltage regulator is also utilized to provide a voltage during a zero-crossing interval of the AC voltage. In a representative embodiment, first and second segments of LEDs are both in the series LED current path regulated at a lower current level compared to when only the first segment of LEDs is in the series LED current path.

    APPARATUS, METHOD AND SYSTEM FOR PROVIDING AC LINE POWER TO LIGHTING DEVICES
    4.
    发明申请
    APPARATUS, METHOD AND SYSTEM FOR PROVIDING AC LINE POWER TO LIGHTING DEVICES 审中-公开
    用于向照明设备提供交流电源的装置,方法和系统

    公开(公告)号:US20170034879A1

    公开(公告)日:2017-02-02

    申请号:US15227653

    申请日:2016-08-03

    IPC分类号: H05B33/08

    摘要: An apparatus, method and system are disclosed for providing AC line power to lighting devices such as light emitting diodes (“LEDs”). A representative apparatus comprises: a plurality of LEDs coupled in series to form a plurality of segments of LEDs; first and second current regulators; a current sensor; and a controller to monitor a current level through a series LED current path, and to provide for first or second segments of LEDs to be in or out of the series LED current path at different current levels. A voltage regulator is also utilized to provide a voltage during a zero-crossing interval of the AC voltage. In a representative embodiment, first and second segments of LEDs are both in the series LED current path regulated at a lower current level compared to when only the first segment of LEDs is in the series LED current path.

    摘要翻译: 公开了一种用于向例如发光二极管(“LED”)等照明装置提供AC线电力的装置,方法和系统。 代表性装置包括:串联耦合以形成多个LED段的多个LED; 第一和第二电流调节器; 电流传感器; 以及控制器,用于通过串联LED电流路径监视电流水平,并且提供LED的第一或第二段在不同电流水平下进入或流出串联LED电流路径。 电压调节器也用于在交流电压的零交叉间隔期间提供电压。 在代表性实施例中,与当仅第一LED段处于串联LED电流路径时相比,LED的第一和第二段都处于LED电流路径中调节在较低电流水平。