公开(公告)号：US08994281B2

公开(公告)日：2015-03-31

申请号：US13620290

申请日：2012-09-14

申请人： Jong Tae Hwang ,  Deuk Hee Park ,  Sang Hyun Cha ,  Chang Seok Lee ,  Yun Joong Lee

发明人： Jong Tae Hwang ,  Deuk Hee Park ,  Sang Hyun Cha ,  Chang Seok Lee ,  Yun Joong Lee

IPC分类号： H05B37/00 ,  H05B37/02 ,  H05B33/08

CPC分类号： H05B33/0815

摘要： There is provided a light emitting diode driving apparatus capable of supplying a constant average current to a light emitting diode by generating a reference voltage used for driving the light emitting diode according to input power and a switching signal switching a path of a current supplied to the light emitting diode. The light emitting diode driving apparatus includes: a reference voltage generating unit generating a reference voltage set based on input power and a switching signal for supplying driving power to a light emitting diode; and a driving unit supplying the driving power to the light emitting diode according to the reference voltage.

摘要翻译： 提供了一种发光二极管驱动装置，其能够通过根据输入功率产生用于驱动发光二极管的参考电压，并向切换信号切换提供给发光二极管的电流的路径，向发光二极管提供恒定的平均电流 发光二极管。 发光二极管驱动装置包括：参考电压产生单元，其基于输入功率产生基准电压和用于向发光二极管提供驱动电力的开关信号; 以及驱动单元，根据参考电压将驱动电力提供给发光二极管。

公开(公告)号：US08917025B2

公开(公告)日：2014-12-23

申请号：US13605101

申请日：2012-09-06

申请人： Deuk Hee Park ,  Yun Joong Lee ,  Sang Hyun Cha ,  Jae Shin Lee ,  Chang Seok Lee

发明人： Deuk Hee Park ,  Yun Joong Lee ,  Sang Hyun Cha ,  Jae Shin Lee ,  Chang Seok Lee

IPC分类号： H05B37/00 ,  H05B33/08

CPC分类号： H05B33/0845 ,  H05B33/0806 ,  H05B33/083

摘要： Disclosed herein is a light emitting diode (LED) driving apparatus including: at least one energy storages connected in series with each other; a plurality of LEDs each connected in parallel with each of the energy storages; and a switching control unit selectively connecting the at least one energy storages according to a level of applied voltage to charge/discharge voltage in/from the selected energy storages and control driving of the LEDs by the charging/discharging operation. Therefore, it is possible to easily drive the LEDs without a converter.

摘要翻译： 本文公开了一种发光二极管（LED）驱动装置，包括：至少一个彼此串联连接的能量存储器; 每个与每个能量存储器并联连接的多个LED; 以及开关控制单元，其根据所施加的电压的水平选择性地将所述至少一个能量存储器连接到所选择的能量存储器中的/从所选择的能量存储器中的充电/放电电压，并且通过所述充电/放电操作控制所述LED的驱动。 因此，可以容易地驱动没有转换器的LED。

公开(公告)号：US20140035476A1

公开(公告)日：2014-02-06

申请号：US13620290

申请日：2012-09-14

申请人： Jong Tae HWANG ,  Deuk Hee PARK ,  Sang Hyun CHA ,  Chang Seok LEE ,  Yun Joong LEE

发明人： Jong Tae HWANG ,  Deuk Hee PARK ,  Sang Hyun CHA ,  Chang Seok LEE ,  Yun Joong LEE

IPC分类号： H05B37/00

CPC分类号： H05B33/0815

摘要： There is provided a light emitting diode driving apparatus capable of supplying a constant average current to a light emitting diode by generating a reference voltage used for driving the light emitting diode according to input power and a switching signal switching a path of a current supplied to the light emitting diode. The light emitting diode driving apparatus includes: a reference voltage generating unit generating a reference voltage set based on input power and a switching signal for supplying driving power to a light emitting diode; and a driving unit supplying the driving power to the light emitting diode according to the reference voltage.

摘要翻译： 提供了一种发光二极管驱动装置，其能够通过根据输入功率产生用于驱动发光二极管的参考电压，并向切换信号切换提供给发光二极管的电流的路径，向发光二极管提供恒定的平均电流 发光二极管。 发光二极管驱动装置包括：参考电压产生单元，其基于输入功率产生基准电压和用于向发光二极管提供驱动电力的开关信号; 以及驱动单元，根据参考电压将驱动电力提供给发光二极管。

公开(公告)号：US20130076253A1

公开(公告)日：2013-03-28

申请号：US13605101

申请日：2012-09-06

申请人： Deuk Hee Park ,  Yun Joong Lee ,  Sang Hyun Cha ,  Jae Shin Lee ,  Chang Seok Lee

发明人： Deuk Hee Park ,  Yun Joong Lee ,  Sang Hyun Cha ,  Jae Shin Lee ,  Chang Seok Lee

IPC分类号： H05B37/00

CPC分类号： H05B33/0845 ,  H05B33/0806 ,  H05B33/083

摘要： Disclosed herein is a light emitting diode (LED) driving apparatus including: at least one energy storages connected in series with each other; a plurality of LEDs each connected in parallel with each of the energy storages; and a switching control unit selectively connecting the at least one energy storages according to a level of applied voltage to charge/discharge voltage in/from the selected energy storages and control driving of the LEDs by the charging/discharging operation. Therefore, it is possible to easily drive the LEDs without a converter.

摘要翻译： 本文公开了一种发光二极管（LED）驱动装置，包括：至少一个彼此串联连接的能量存储器; 每个与每个能量存储器并联连接的多个LED; 以及开关控制单元，其根据所施加的电压的水平选择性地将所述至少一个能量存储器连接到所选择的能量存储器中的/从所选择的能量存储器中的充电/放电电压，并且通过所述充电/放电操作控制所述LED的驱动。 因此，可以容易地驱动没有转换器的LED。

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。

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。

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。

公开(公告)号：US20120044235A1

公开(公告)日：2012-02-23

申请号：US13079386

申请日：2011-04-04

申请人： Sang Hyun CHA ,  Youn Joong LEE ,  Gyu Hyeong CHO ,  Jin Yong JEON ,  Jun Hyeok YANG ,  Hyun Sik KIM ,  Jae Shin LEE

发明人： Sang Hyun CHA ,  Youn Joong LEE ,  Gyu Hyeong CHO ,  Jin Yong JEON ,  Jun Hyeok YANG ,  Hyun Sik KIM ,  Jae Shin LEE

IPC分类号： G09G3/32 ,  G09G5/00

CPC分类号： G09G3/3233 ,  G09G2320/0233 ,  G09G2320/043 ,  G09G2320/045

摘要： There is provided an active matrix organic light emitting diode display, including a data driver converting pre-prepared correction data into an analog correction signal and generating a driving signal according to the analog correction signal, a selector selecting a charging path for programming, according to the driving signal in a preset programming period and selecting a deterioration detection path in a preset emission period, a pixel unit including an organic light-emitting diode connected between a power supply receiving power and a ground, charging a value corresponding to the correction data according to the driving signal in the programming period, and allowing current to flow to the organic light-emitting diode according to the charged value in the emission period, and an ADC detecting deterioration voltage having deterioration information of the organic light-emitting diode of the pixel unit in the emission period.

摘要翻译： 提供了一种有源矩阵有机发光二极管显示器，包括数据驱动器，将预先准备好的校正数据转换成模拟校正信号，并根据模拟校正信号产生驱动信号;选择器，根据 所述驱动信号在预设的编程周期中，并且在预设发射周期中选择劣化检测路径，包括连接在电源接收功率和地之间的有机发光二极管的像素单元，对与校正数据相对应的值进行充电， 与编程期间的驱动信号相对应，并且根据发光期间的充电值允许电流流向有机发光二极管，并且ADC检测劣化电压，其具有像素的有机发光二极管的劣化信息 单位在排放期。

公开(公告)号：US20110051850A1

公开(公告)日：2011-03-03

申请号：US12614244

申请日：2009-11-06

申请人： Sang Hyun Cha ,  Chang Seok Lee

发明人： Sang Hyun Cha ,  Chang Seok Lee

IPC分类号： H04L25/06

CPC分类号： H04L25/063 ,  H04L27/0014

摘要： The present invention provides a frequency tuning/DC offset canceling circuit for continuous-time analog filter with time division, the frequency tuning/DC offset canceling circuit including: a frequency tuning/DC offset canceling unit for performing frequency tuning by comparing an output voltage with a reference voltage when a frequency tuning control signal is inputted, and canceling a DC offset after terminating the frequency tuning when a DC offset canceling control signal is inputted; and a control signal generator for generating the frequency tuning control signal and the DC offset canceling control signal based on a reference clock in time division.

摘要翻译： 本发明提供了一种用于具有时分的连续时间模拟滤波器的频率调谐/ DC偏移消除电路，该频率调谐/ DC偏移消除电路包括：频率调谐/ DC偏移消除单元，用于通过将输出电压与 当输入频率调谐控制信号时的参考电压，以及在输入DC偏移消除控制信号时终止频率调谐之后取消DC偏移; 以及控制信号发生器，用于基于时分的参考时钟产生频率调谐控制信号和DC偏移消除控制信号。

公开(公告)号：US20130257305A1

公开(公告)日：2013-10-03

申请号：US13524663

申请日：2012-06-15

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

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

IPC分类号： H05B37/02

CPC分类号： H05B33/0815

摘要： There is provided a light emitting diode driving apparatus satisfying regulations for current transferred to a light emitting diode. The light emitting diode driving apparatus includes: a power supplying unit receiving input power to convert the input power into a preset driving power and supplying the driving power to a light emitting diode unit including at least one light emitting diode; a detecting unit receiving the driving power supplied to the light emitting diode unit to detect voltage flowing in the light emitting diode unit; a controlling unit comparing detection voltage detected by the detecting unit with a preset reference voltage to control a power conversion operation of the power supplying unit; and a driving unit driving the power conversion operation according to controlling by the controlling unit.

摘要翻译： 提供了满足对传输到发光二极管的电流的规定的发光二极管驱动装置。 发光二极管驱动装置包括：供电单元，其接收输入功率以将输入功率转换为预设驱动功率，并将驱动功率提供给包括至少一个发光二极管的发光二极管单元; 接收提供给所述发光二极管单元的驱动电力以检测在所述发光二极管单元中流动的电压的检测单元; 将由所述检测单元检测出的检测电压与预先设定的基准电压进行比较的控制单元，对所述供电单元的电力变换动作进行控制; 以及驱动单元，其根据控制单元的控制驱动电力转换操作。