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：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：US20140001973A1

公开(公告)日：2014-01-02

申请号：US13613692

申请日：2012-09-13

申请人： Deuk Hee PARK ,  Yun Joong Lee ,  Sang Hyun Cha ,  Chang Seok Lee

发明人： Deuk Hee PARK ,  Yun Joong Lee ,  Sang Hyun Cha ,  Chang Seok Lee

IPC分类号： H05B37/02

CPC分类号： H05B33/0815 ,  H02M1/4258 ,  Y02B20/346 ,  Y02B70/126

摘要： There is provided a light emitting diode driving apparatus for controlling the light emitting diode driving according to a feedback signal input through a positive feedback loop, the light emitting diode driving apparatus including: a power converting unit switching input power and supplying driving power to at least one light emitting diode; a feedback unit detecting and feeding back a voltage of the driving power of the power converting unit; and a controlling unit including a comparator having a negative terminal receiving a reference voltage having a set voltage level and a positive terminal receiving the detected voltage from the feedback unit and comparing the reference voltage with the detected voltage to control a switching of the power converting unit according to a comparison result.

摘要翻译： 提供了一种发光二极管驱动装置，用于根据通过正反馈环路输入的反馈信号来控制发光二极管驱动，该发光二极管驱动装置包括：功率转换单元，用于切换输入电力并将驱动功率提供给至少 一个发光二极管; 反馈单元，检测并反馈所述电力转换单元的驱动电力的电压; 以及控制单元，其包括比较器，其具有接收具有设定电压电平的参考电压的负极端子和从所述反馈单元接收所述检测到的电压的正极端子，并且将所述参考电压与所述检测到的电压进行比较，以控制所述功率转换单元 根据比较结果。

公开(公告)号：US08471788B2

公开(公告)日：2013-06-25

申请号：US13036363

申请日：2011-02-28

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

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

IPC分类号： G09G3/30

CPC分类号： G09G3/3275 ,  G09G3/3225 ,  G09G2320/0285 ,  G09G2320/029 ,  G09G2320/043 ,  G09G2320/0693 ,  G09G2360/16

摘要： There is provided an organic light emitting diode driver capable of compensating for pixel deterioration in real time during the driving of pixels by selectively compensating pixels, requiring compensation, for the deterioration thereof, and precisely setting calibration data by removing an IR drop across a transistor, employed as a switch in the pixels, by calculating a difference between at least two representative values of different gray scale ranges among predetermined gray scale ranges.

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像素，需要补偿其劣化并通过去除晶体管两端的IR压差来精确地设置校准数据来补偿在像素驱动期间实时的像素劣化， 通过计算预定灰度范围中的不同灰度范围的至少两个代表值之间的差异，用作像素中的开关。

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。

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：US08030991B2

公开(公告)日：2011-10-04

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： H04B1/10 ,  H04B1/12

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。