Light emitting diode driving apparatus
    1.
    发明授权
    Light emitting diode driving apparatus 有权
    发光二极管驱动装置

    公开(公告)号:US09055640B2

    公开(公告)日:2015-06-09

    申请号:US13494543

    申请日:2012-06-12

    IPC分类号: H05B33/08

    CPC分类号: H05B33/0827

    摘要: There is provided a light emitting diode driving apparatus capable of uniformly maintaining current balance between light emitting diode channels. The light emitting diode driving apparatus includes: a DC to DC converting unit converting the direct current power into settable driving power; a detecting unit detecting voltage drops generated in each of a plurality of light emitting diode channels each having a plurality of light emitting diodes; a converting unit converting an analog value into a digital value; and a driving unit differentially setting duty cycles of switching signals according to the digital values from the converting unit to drive the plurality of light emitting diode channels.

    摘要翻译: 提供了能够均匀地保持发光二极管通道之间的电流平衡的发光二极管驱动装置。 发光二极管驱动装置包括:直流/直流转换单元,将直流电转换成可设定的驱动电力; 检测单元,检测在每个具有多个发光二极管的多个发光二极管通道中的每一个中产生的电压降; 转换单元,将模拟值转换为数字值; 以及驱动单元,根据来自转换单元的数字值差分地设置开关信号的占空比,以驱动多个发光二极管通道。

    LIGHT EMITTING DIODE DRIVING APPARATUS
    2.
    发明申请
    LIGHT EMITTING DIODE DRIVING APPARATUS 有权
    发光二极管驱动装置

    公开(公告)号:US20130249418A1

    公开(公告)日:2013-09-26

    申请号:US13494543

    申请日:2012-06-12

    IPC分类号: H05B37/02

    CPC分类号: H05B33/0827

    摘要: There is provided a light emitting diode driving apparatus capable of uniformly maintaining current balance between light emitting diode channels. The light emitting diode driving apparatus includes: a DC to DC converting unit converting the direct current power into settable driving power; a detecting unit detecting voltage drops generated in each of a plurality of light emitting diode channels each having a plurality of light emitting diodes; a converting unit converting an analog value into a digital value; and a driving unit differentially setting duty cycles of switching signals according to the digital values from the converting unit to drive the plurality of light emitting diode channels.

    摘要翻译: 提供了能够均匀地保持发光二极管通道之间的电流平衡的发光二极管驱动装置。 发光二极管驱动装置包括:直流/直流转换单元,将直流电转换成可设定的驱动电力; 检测单元,检测在每个具有多个发光二极管的多个发光二极管通道中的每一个中产生的电压降; 转换单元,将模拟值转换为数字值; 以及驱动单元,根据来自转换单元的数字值差分地设置开关信号的占空比,以驱动多个发光二极管通道。

    Control apparatus for engine-powered forklifts
    3.
    发明授权
    Control apparatus for engine-powered forklifts 有权
    发动机动力叉车控制装置

    公开(公告)号:US07716926B2

    公开(公告)日:2010-05-18

    申请号:US11609452

    申请日:2006-12-12

    申请人: Seo Hyung Kim

    发明人: Seo Hyung Kim

    IPC分类号: F16D31/02

    摘要: Disclosed herein is a control apparatus for an engine-powered forklift. The control apparatus of the present invention includes a mode detecting means for detecting whether the forklift is in a traveling mode or a working mode, and a controller, which controls the engine of the forklift such that, when the forklift is in the traveling mode, the output of the engine is restricted from increasing to a preset output value or more, and, when the forklift is in the working mode, the output of the engine is allowed to increase to the preset output value or more.

    摘要翻译: 这里公开了一种用于发动机动力叉车的控制装置。 本发明的控制装置包括用于检测叉车是处于行驶模式还是工作模式的模式检测装置,以及控制叉车的发动机的控制器,使得当叉车处于行驶模式时, 发动机的输出被限制为增加到预设的输出值以上,并且当叉车处于工作模式时,允许发动机的输出增加到预设的输出值或更多。