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    • 5. 发明授权
    • LED emitting device
    • LED发光装置
    • US08760082B2
    • 2014-06-24
    • US13225953
    • 2011-09-06
    • Seunguk YangByunghak AhnHak-Hee LeeEung-Woo Lee
    • Seunguk YangByunghak AhnHak-Hee LeeEung-Woo Lee
    • H05B33/02H05B37/02
    • H05B33/0827H05B33/0815Y02B20/346
    • The present invention relates to an LED emitting device. The LED emitting device includes: a converter converting an input voltage according to a switching operation of a power source switch to generate at least two output voltages; an LED panel unit including a plurality of LED channels having a plurality of LEDs; a micom board operated by a first output voltage among the at least two output voltages to control the operation of the LED emitting device; a regulator converting a second output voltage among the at least two output voltages into a voltage suitable for the operation of the LED panel unit; and a multi-channel control unit controlling an operation of the regulator according to a lowest minimum voltage among the voltages of a plurality of LED channels and receiving the first output voltage to generate a first feedback voltage VF1.
    • 本发明涉及一种LED发光装置。 LED发光装置包括:转换器,根据电源开关的开关操作转换输入电压以产生至少两个输出电压; LED面板单元,其包括具有多个LED的多个LED通道; 所述微板由所述至少两个输出电压中的第一输出电压操作以控制所述LED发射装置的操作; 将所述至少两个输出电压中的第二输出电压转换成适合于所述LED面板单元的操作的电压的调节器; 以及多通道控制单元,其根据多个LED通道的电压中的最低最小电压来控制所述调节器的操作,并接收所述第一输出电压以产生第一反馈电压VF1。
    • 6. 发明授权
    • Driving apparatus and driving method of LED device
    • LED装置的驱动装置和驱动方法
    • US08531113B2
    • 2013-09-10
    • US13106708
    • 2011-05-12
    • Ilyong JungChan SonMoonho ChoiSeunguk Yang
    • Ilyong JungChan SonMoonho ChoiSeunguk Yang
    • H05B37/02
    • H05B33/089H05B33/0815H05B33/0824H05B33/0827Y02B20/341Y02B20/347
    • A driving apparatus of an LED device is provided. The LED device includes a plurality of LED channels, and each LED channel includes a plurality of LEDs connected in series. A power converter has an output terminal connected to a first terminal of each LED channel, and converts an input voltage into an output voltage to output the output voltage to the output terminal. A plurality of current controllers correspond to the plurality of LED channels, respectively. Each current controller is connected to a second terminal of a corresponding LED channel, and controls a current of the corresponding LED channel. The voltage sensor outputs a sensed voltage corresponding to the output voltage of the output terminal. The fault controller determines whether to stop operation of the power converter by comparing the sensed voltage with a reference voltage.
    • 提供了一种LED装置的驱动装置。 LED装置包括多个LED通道,并且每个LED通道包括串联连接的多个LED。 电源转换器具有连接到每个LED通道的第一端子的输出端子,并且将输入电压转换为输出电压以将输出电压输出到输出端子。 多个电流控制器分别对应于多个LED通道。 每个电流控制器连接到相应的LED通道的第二端子,并控制对应的LED通道的电流。 电压传感器输出与输出端子的输出电压对应的检测电压。 故障控制器通过将检测到的电压与参考电压进行比较来确定是否停止功率转换器的操作。
    • 7. 发明授权
    • Apparatus and method for detecting open-circuited light emitting diode channels
    • 用于检测开路的发光二极管通道的装置和方法
    • US08736192B2
    • 2014-05-27
    • US13239776
    • 2011-09-22
    • Ilyong JungSeunguk YangJae-yong LeeJinkyum Kim
    • Ilyong JungSeunguk YangJae-yong LeeJinkyum Kim
    • G05F1/00
    • H05B33/0827H05B33/0815Y02B20/347
    • An apparatus for driving an LED device having a plurality of LED channels is disclosed. Each LED channel has a plurality of LEDs connected in series. A power converter converts an input voltage into an output voltage and outputs the output voltage to an output terminal that is connected to first terminals of the plurality of LED channels. A plurality of current controllers are connected to second terminals of the plurality of LED channels, respectively. Each current controller controls a current of a corresponding LED channel. A detection controller determines a detection time based on voltages of the second terminals of the plurality of LED channels. A state detector detects the open-circuited states of the plurality of LED channels based on voltages of the second terminals of the plurality of LED channels at the detection time.
    • 公开了一种用于驱动具有多个LED通道的LED装置的装置。 每个LED通道具有串联连接的多个LED。 功率转换器将输入电压转换为输出电压,并将输出电压输出到连接到多个LED通道的第一端子的输出端子。 多个电流控制器分别连接到多个LED通道的第二端子。 每个电流控制器控制相应LED通道的电流。 检测控制器基于多个LED通道的第二端子的电压来确定检测时间。 状态检测器在检测时间基于多个LED通道的第二端子的电压来检测多个LED通道的开路状态。