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    • 64. 发明申请
    • DRIVER FOR LIGHT EMITTING DIODES
    • 用于发光二极管的驱动器
    • US20120074859A1
    • 2012-03-29
    • US13186110
    • 2011-07-19
    • Seung Kon KONGJae Shin LEEBo Hyun HWANGJung Hyun KIMJung Eui PARKJoon Youp SUNG
    • Seung Kon KONGJae Shin LEEBo Hyun HWANGJung Hyun KIMJung Eui PARKJoon Youp SUNG
    • H05B37/02
    • H05B33/0827H05B33/0848
    • There is provided a driver for light emitting diodes capable of differently setting duties in which driving current flows depending on respective light emitting diode (LED) channels according to a voltage deviation between the LED channels in order to reduce heat generated due to the voltage deviation between the LED channels. The driver for LEDs includes: a detecting unit detecting a voltage drop generated in each of a plurality of LED channels receiving driving power having a preset voltage level; a converting unit converting detected analog values from the detecting unit into digital values; and a driving unit differently setting switching duties in which driving current flows in each of the plurality of LED channels according to the digital values from the converting unit to drive the plurality of LED channels.
    • 提供了一种用于发光二极管的驱动器,其能够根据LED通道之间的电压偏差,根据各个发光二极管(LED)通道驱动电流而不同地设定工作,以便减少由于LED通道之间的电压偏差而产生的热量 LED通道。 用于LED的驱动器包括:检测单元,其检测在多个LED通道中的每一个中产生的电压降,其接收具有预设电压电平的驱动功率; 转换单元将来自检测单元的检测到的模拟值转换为数字值; 以及驱动单元,其根据来自转换单元的数字值,驱动电流在多个LED通道中的每一个流动,切换负荷不同,以驱动多个LED通道。
    • 65. 发明授权
    • Module for controlling light emitting diode current for selective feedback, apparatus and method for driving light emitting diodes using the same
    • 用于控制用于选择反馈的发光二极管电流的模块,用于驱动使用其的发光二极管的装置和方法
    • US08115413B2
    • 2012-02-14
    • US12629552
    • 2009-12-02
    • Seung Kon KongBo Hyun HwangJung Hyun KimJung Sun Kwon
    • Seung Kon KongBo Hyun HwangJung Hyun KimJung Sun Kwon
    • G05F1/00
    • H05B33/0812H05B33/0824Y02B20/345
    • The present invention provides a module for controlling an LED current for selective feedback, an apparatus and a method for driving LEDs using the same. The module for controlling the LED current, which is connected to a plurality of LED channels receiving driving powers supplied from at least one DC/DC converter and controls currents of the LED channels through a constant current, the LED current controlling module includes: an operation mode selector for selecting an operation mode according to an inputted enable signal level; a channel divider for dividing a plurality of LED channels into at least one group according to the selected operation mode; and a minimum voltage selector for selecting an LED channel with a minimum voltage, obtained by comparing voltages detected from each of lower ends of the LED channels included in each of one or more divided groups.
    • 本发明提供一种用于控制用于选择反馈的LED电流的模块,用于驱动使用该LED的LED的装置和方法。 用于控制LED电流的模块,其连接到从至少一个DC / DC转换器提供的驱动功率的多个LED通道,并通过恒定电流来控制LED通道的电流,LED电流控制模块包括: 模式选择器,用于根据输入的使能信号电平选择操作模式; 用于根据选择的操作模式将多个LED通道分成至少一个组的通道分配器; 以及用于选择具有最小电压的LED通道的最小电压选择器,其通过比较包括在一个或多个分组中的每一个中的LED通道的每个下端检测到的电压而获得。