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    LIGHT EMITTING DIODE DRIVING DEVICE AND METHOD THEREOF
    1.
    发明申请
    LIGHT EMITTING DIODE DRIVING DEVICE AND METHOD THEREOF 审中-公开
    发光二极管驱动装置及其方法

    公开(公告)号：US20130033191A1

    公开(公告)日：2013-02-07

    申请号：US13278867

    申请日：2011-10-21

    申请人： Joong Ho CHOI ,  Seok Lee ,  Jae Hoon Kim ,  Jae Shin Lee ,  Yeun Joong Lee ,  Deuk Hee Park ,  Sang Hyun Cha ,  Chang Seok Lee ,  Jung Eui Park

    发明人： Joong Ho CHOI ,  Seok Lee ,  Jae Hoon Kim ,  Jae Shin Lee ,  Yeun Joong Lee ,  Deuk Hee Park ,  Sang Hyun Cha ,  Chang Seok Lee ,  Jung Eui Park

    IPC分类号： H05B37/02

    CPC分类号： H05B33/0824

    摘要： There are provided a light emitting diode (LED) driving device allowing for an increase in an LED driving rate by discharging a charge stored in a capacitor during a certain period of time and a method thereof. The LED driving device includes: a driving unit detecting a current, as a voltage, the current flowing across an LED unit having at least one LED, controlling the current flowing across the LED unit according to a comparison result between the detected voltage and a reference voltage having a pre-set voltage level, and having a capacitor stabilizing an operation of the LED unit when the LED unit is driven; and a discharging unit discharging a charge stored in the capacitor during a pre-set discharge time when the LED unit is initially driven.

    摘要翻译： 提供了一种发光二极管（LED）驱动装置，其允许通过在一定时间段内放电存储在电容器中的电荷来提高LED驱动速率及其方法。 LED驱动装置包括：驱动单元，检测流过具有至少一个LED的LED单元的电流作为电压，根据检测到的电压和参考值之间的比较结果来控制流过LED单元的电流 具有预设电压电平的电压，并且当LED单元被驱动时具有使LED单元的操作稳定的电容器; 以及放电单元，当LED单元被初始驱动时，在预设的放电时间期间放电存储在电容器中的电荷。

    LIGHT EMITTING DIODE DRIVER HAVING OFFSET VOLTAGE COMPENSATING FUNCTION
    2.
    发明申请
    LIGHT EMITTING DIODE DRIVER HAVING OFFSET VOLTAGE COMPENSATING FUNCTION 审中-公开
    具有偏置电压补偿功能的发光二极管驱动器

    公开(公告)号：US20120319609A1

    公开(公告)日：2012-12-20

    申请号：US13288728

    申请日：2011-11-03

    申请人： Joong Ho CHOI ,  Seok Lee ,  Jae Hoon Kim ,  Jae Shin Lee ,  Yeun Joong Lee ,  Deuk Hee Park ,  Sang Hyun Cha ,  Chang Seok Lee ,  Jung Eui Park

    发明人： Joong Ho CHOI ,  Seok Lee ,  Jae Hoon Kim ,  Jae Shin Lee ,  Yeun Joong Lee ,  Deuk Hee Park ,  Sang Hyun Cha ,  Chang Seok Lee ,  Jung Eui Park

    IPC分类号： H05B37/02

    CPC分类号： H05B33/0812 ,  H05B33/0848 ,  Y02B20/345

    摘要： There is provided a light emitting diode (LED) driver having an offset voltage compensating function compensating for an offset voltage generated at the time of driving of an LED, the LED driver including: a driving unit detecting a current flowing in an LED unit having at least one LED, as a voltage and controlling the current flowing in the LED unit according to a comparison result between the detected voltage and a reference voltage having a preset voltage level; and an offset compensating unit integrating a voltage difference between the detected voltage and the reference voltage and adding or subtracting a compensating current according to an integration result to thereby compensate for an offset.

    摘要翻译： 提供一种发光二极管（LED）驱动器，其具有补偿在驱动LED时产生的偏移电压的偏移电压补偿功能，所述LED驱动器包括：驱动单元，其检测在具有 至少一个LED作为电压，并且根据检测到的电压和具有预设电压电平的参考电压之间的比较结果来控制在LED单元中流动的电流; 以及偏移补偿单元，其将检测到的电压和参考电压之间的电压差积分，并根据积分结果来补偿或减去补偿电流，从而补偿偏移。

    Illumination driving apparatus
    3.
    发明授权
    Illumination driving apparatus 有权
    照明驱动装置

    公开(公告)号：US08779682B2

    公开(公告)日：2014-07-15

    申请号：US13290738

    申请日：2011-11-07

    申请人： Joong Ho Choi ,  Yeun Joong Lee ,  Deuk Hee Park ,  Sang Hyun Cha ,  Chang Seok Lee

    发明人： Joong Ho Choi ,  Yeun Joong Lee ,  Deuk Hee Park ,  Sang Hyun Cha ,  Chang Seok Lee

    IPC分类号： H05B37/02

    CPC分类号： H05B33/0815 ,  H05B33/0845 ,  H05B33/0851

    摘要： A fixture-compatible, dimmable illumination driving apparatus including: a rectifying unit rectifying a phase-controlled waveform of an alternating current (AC) power; a comparing unit comparing an output waveform of the rectifying unit with a first voltage according to a preset reference clock; a reference voltage generating unit generating a reference voltage corresponding to the number of high signals higher than the first voltage among outputs of the comparing unit during one cycle of the output waveform; and a pulse width modulation (PWM) signal generating unit generating a PWM signal from the reference voltage and a feedback voltage.

    摘要翻译： 一种灯具兼容的可调光照明驱动装置，包括：整流单元，对交流（AC）功率的相位控制波形进行整流; 比较单元，根据预设的参考时钟将整流单元的输出波形与第一电压进行比较; 参考电压产生单元，在所述输出波形的一个周期期间，生成与所述比较单元的输出之间高于所述第一电压的高信号的数量相对应的参考电压; 以及脉冲宽度调制（PWM）信号生成单元，从所述基准电压和反馈电压生成PWM信号。

    LED circuit
    4.
    发明授权
    LED circuit 有权
    LED电路

    公开(公告)号：US08796942B2

    公开(公告)日：2014-08-05

    申请号：US13223933

    申请日：2011-09-01

    申请人： Yeun Joong Lee ,  Deuk Hee Park ,  Sang Hyun Cha ,  Jae Shin Lee ,  Change Seok Lee

    发明人： Yeun Joong Lee ,  Deuk Hee Park ,  Sang Hyun Cha ,  Jae Shin Lee ,  Change Seok Lee

    IPC分类号： H05B37/02

    CPC分类号： H05B33/0809 ,  H05B33/0806 ,  Y02B20/348

    摘要： There is provided an LED circuit including a light emitting unit including a plurality of light emitting diodes; and a switching unit switching to apply only positive voltage of an AC power supply to an anode of the light emitting unit. Through this, the LED circuit can reduce complexity of a driving circuit. Further, lifespan and efficiency of the LED circuit may be improved since an electrolytic capacitor and a bridge circuit are not used. Further, any one light emitting diode may be prevented from determining the lifespan of all of the light emitting diodes since all of the light emitting diodes are driven at all times, thereby improving the lifespan of the light emitting diode.

    摘要翻译： 提供了一种LED电路，包括包括多个发光二极管的发光单元; 以及切换单元，其仅将交流电源的正电压施加到所述发光单元的阳极。 通过这种方式，LED电路可以降低驱动电路的复杂性。 此外，由于不使用电解电容器和桥式电路，因此可以提高LED电路的寿命和效率。 此外，由于所有发光二极管始终被驱动，因此可以防止任何一个发光二极管确定所有发光二极管的寿命，从而提高发光二极管的寿命。

    LED driving apparatus and method
    5.
    发明授权
    LED driving apparatus and method 有权
    LED驱动装置及方法

    公开(公告)号：US08890431B2

    公开(公告)日：2014-11-18

    申请号：US13220041

    申请日：2011-08-29

    申请人： Change Seok Lee ,  Yeun Joong Lee ,  Deuk Hee Park ,  Sang Hyun Cha ,  Jae Shin Lee

    发明人： Change Seok Lee ,  Yeun Joong Lee ,  Deuk Hee Park ,  Sang Hyun Cha ,  Jae Shin Lee

    IPC分类号： H05B37/02 ,  H05B33/08

    CPC分类号： H05B33/0815

    摘要： There are provided an LED driving apparatus and an LED driving method thereof. The LED driving apparatus includes: a light emitting unit including one or more LEDs, a rectifying unit rectifying an input signal to generate a first signal; a signal conversion unit inverting a waveform of a first signal to generate a second signal; and an operation unit arithmetically operating the first and second signals. A plurality of AC signals each having a different waveform are arithmetically operated to generate a signal having a small amount of a ripple component, and an LED is driven by the signal, thus preventing a lifespan of the LED from being shortened by omitting a smoothing electrolytic capacitor, one of main causes shortening the lifespan of an LED driving circuit.

    摘要翻译： 提供了LED驱动装置及其LED驱动方法。 LED驱动装置包括：发光单元，包括一个或多个LED;整流单元对输入信号进行整流以产生第一信号; 信号转换单元，反转第一信号的波形以产生第二信号; 以及操作单元，算术地操作第一和第二信号。 每个具有不同波形的多个AC信号被算术运算以产生具有少量纹波分量的信号，并且由信号驱动LED，从而通过省略平滑电解而防止LED的寿命缩短 电容器，主要原因之一是缩短了LED驱动电路的使用寿命。

    LED circuit
    6.
    发明授权
    LED circuit 有权
    LED电路

    公开(公告)号：US08749147B2

    公开(公告)日：2014-06-10

    申请号：US13224083

    申请日：2011-09-01

    申请人： Yeun Joong Lee ,  Deuk Hee Park ,  Sang Hyun Cha ,  Jae Shin Lee ,  Change Seok Lee

    发明人： Yeun Joong Lee ,  Deuk Hee Park ,  Sang Hyun Cha ,  Jae Shin Lee ,  Change Seok Lee

    IPC分类号： H05B37/00 ,  H05B37/02

    CPC分类号： H05B33/0809 ,  H05B33/0824

    摘要： There is provided an LED circuit. The LED circuit may include 2N+2 light emitting units connected between a 2K−1-th node and a 2K-th node among 4N+4 (N is a natural number) nodes including a first node supplied with input voltage (K is all natural numbers equal to or smaller than 2N+2); 2N+2 switches connected between a 2K-th node and a ground (K is all natural numbers equal to or smaller than 2N+2); 2N+1 switches connected between a 2L−1-th node and a 2L+1-th node and 2N+1 switches connected between a 2L-th node and a 2L+1-th node (L is all natural numbers equal to or smaller than 2N+1); and N switches connected between the first node and a 4M+1-th node (M is all natural numbers equal to or smaller than N).

    摘要翻译： 提供了一个LED电路。 LED电路可以包括连接在4N + 4（N是自然数）节点之间的第2K-1节点和第2K节点之间的2N + 2个发光单元，包括提供有输入电压的第一节点（K全为 等于或小于2N + 2的自然数）; 连接在第2K节点和地之间的2N + 2个开关（K是等于或小于2N + 2的自然数）; 连接在第2L-1节点和第2L + 1节点之间的2N + 1个开关和连接在第2L节点和第2L + 1节点之间的2N + 1个开关（L等于或等于 小于2N + 1）; 和连接在第一节点与第4M + 1节点之间的N个交换机（M等于或小于N的自然数）。

    ILLUMINATION DRIVING APPARATUS
    7.
    发明申请
    ILLUMINATION DRIVING APPARATUS 有权
    照明驱动装置

    公开(公告)号：US20120319605A1

    公开(公告)日：2012-12-20

    申请号：US13290738

    申请日：2011-11-07

    申请人： Joong Ho CHOI ,  Yeun Joong Lee ,  Deuk Hee Park ,  Sang Huyn Cha ,  Chang Seok Lee

    发明人： Joong Ho CHOI ,  Yeun Joong Lee ,  Deuk Hee Park ,  Sang Huyn Cha ,  Chang Seok Lee

    IPC分类号： H05B37/00

    CPC分类号： H05B33/0815 ,  H05B33/0845 ,  H05B33/0851

    摘要： A fixture-compatible, dimmable illumination driving apparatus including: a rectifying unit rectifying a phase-controlled waveform of an alternating current (AC) power; a comparing unit comparing an output waveform of the rectifying unit with a first voltage according to a preset reference clock; a reference voltage generating unit generating a reference voltage corresponding to the number of high signals higher than the first voltage among outputs of the comparing unit during one cycle of the output waveform; and a pulse width modulation (PWM) signal generating unit generating a PWM signal from the reference voltage and a feedback voltage.

    摘要翻译： 一种灯具兼容的可调光照明驱动装置，包括：整流单元，对交流（AC）功率的相位控制波形进行整流; 比较单元，根据预设的参考时钟将整流单元的输出波形与第一电压进行比较; 参考电压产生单元，在所述输出波形的一个周期期间，生成与所述比较单元的输出之间高于所述第一电压的高信号的数量相对应的参考电压; 以及脉冲宽度调制（PWM）信号生成单元，从所述基准电压和反馈电压生成PWM信号。

    ORGANIC LIGHT EMITTING DIODE DRIVER
    10.
    发明申请
    ORGANIC LIGHT EMITTING DIODE DRIVER 审中-公开
    有机发光二极管驱动器

    公开(公告)号：US20120032991A1

    公开(公告)日：2012-02-09

    申请号：US13034060

    申请日：2011-02-24

    申请人： Sang Hyun Cha ,  Yeun Joong Lee ,  Gyu Hyeong Cho ,  Jin Yong Jeon ,  Kyung Ho Lee ,  Jun Hyeok Yang ,  Hyun Sik Kim ,  Jae Shin Lee

    发明人： Sang Hyun Cha ,  Yeun Joong Lee ,  Gyu Hyeong Cho ,  Jin Yong Jeon ,  Kyung Ho Lee ,  Jun Hyeok Yang ,  Hyun Sik Kim ,  Jae Shin Lee

    IPC分类号： G09G5/00 ,  G09G3/14 ,  G09G5/10

    CPC分类号： G09G3/3208 ,  G09G2320/043 ,  G09G2320/048 ,  G09G2320/0693

    摘要： There is provided an organic light emitting diode driver being capable of compensating for pixel deterioration in real time during the driving of pixels by selectively compensating pixels, requiring compensation, for the deterioration thereof. The organic light emitting diode driver includes a converting unit converting input data into compensation data used to selectively compensate for pixel deterioration depending on whether the input data has been calibrated or not; a driving unit driving pixels of a pixel unit based on the compensation data from the converting unit; and a compensating unit providing the converting unit with a deterioration compensation signal based on deterioration information obtained from a pixel driven by the driving unit.

    摘要翻译： 提供了一种有机发光二极管驱动器，其能够通过选择性地补偿要求补偿的劣化的像素来补偿在像素驱动期间实时的像素劣化。 有机发光二极管驱动器包括转换单元，其将输入数据转换成用于根据输入数据是否被校准来选择性地补偿像素劣化的补偿数据; 基于来自所述转换单元的补偿数据驱动像素单元的像素的驱动单元; 以及补偿单元，其基于从由所述驱动单元驱动的像素获得的劣化信息，向所述转换单元提供劣化补偿信号。