公开(公告)号：US09030459B2

公开(公告)日：2015-05-12

申请号：US13240228

申请日：2011-09-22

申请人： Jin-Won Jang ,  Min-Soo Choi ,  Young Sup Kwon

发明人： Jin-Won Jang ,  Min-Soo Choi ,  Young Sup Kwon

IPC分类号： G09G5/00 ,  H05B33/08 ,  G09G3/34 ,  G09G3/36

CPC分类号： H05B33/0857 ,  G09G3/342 ,  G09G3/3648 ,  G09G2320/0233 ,  G09G2320/064 ,  G09G2330/021 ,  H05B33/0815 ,  H05B33/0827

摘要： A backlight unit includes a DC-DC converter; a voltage control unit which controls output voltage of the DC-DC converter; a plurality of unit light emitting diode arrays; and current deviation compensating unit in connection with input terminals of the plurality of unit light emitting diode arrays. The current deviation compensating unit receives the controlled voltage of the voltage control unit and transfers a feedback signal to the voltage control unit based on the received voltage, and actively compensates a current deviation generated by electrical characteristics of the plurality of unit light emitting diode arrays and transfers the compensated current deviation to the input terminals of the plurality of unit light emitting diode arrays.

摘要翻译： 背光单元包括DC-DC转换器; 控制DC-DC转换器的输出电压的电压控制单元; 多个单位发光二极管阵列; 和电流偏差补偿单元，与多个单位发光二极管阵列的输入端相连。 电流偏差补偿单元接收电压控制单元的受控电压，并基于接收电压将反馈信号传送到电压控制单元，并且主动地补偿由多个单位发光二极管阵列的电特性产生的电流偏差，以及 将补偿的电流偏差传送到多个单位发光二极管阵列的输入端子。

公开(公告)号：US08638051B2

公开(公告)日：2014-01-28

申请号：US13216419

申请日：2011-08-24

申请人： Young Sup Kwon

发明人： Young Sup Kwon

IPC分类号： H05B37/00

CPC分类号： H05B33/0815 ,  H05B33/0827

摘要： A DC-DC converter includes a plurality of boost circuits and a controller. The boost circuits are coupled to another in parallel. The boost circuits receive a DC voltage and boost the DC voltage. The controller drives the boost circuits with a duty ratio of less than 50% and different phases.

摘要翻译： DC-DC转换器包括多个升压电路和控制器。 升压电路并联耦合到另一个。 升压电路接收直流电压并提升直流电压。 控制器以占空比小于50％和不同相位驱动升压电路。

公开(公告)号：US07633240B2

公开(公告)日：2009-12-15

申请号：US11703897

申请日：2007-02-07

申请人： Young Sup Kwon

发明人： Young Sup Kwon

IPC分类号： H05B41/16

CPC分类号： H05B41/245

摘要： A lamp driving apparatus wherein a plurality of two-winding balance circuits are connected to a plurality of parallel-connected lamp groups so that all of the lamps may be illuminated even though ambient conditions cause some of the lamps to have low resistance. Capacitors are connected to first electrodes and certain of the balance coil windings are connected to second electrodes of one of the lamp groups while, in a second lamp group, others of the balance coil windings are connected to the first electrodes and capacitors are connected to the second electrodes thereof, current flowing through balance coil windings to some lamps being affected by current flowing through balance coil windings to other lamps.

摘要翻译： 一种灯驱动装置，其中多个二绕组平衡电路连接到多个并联连接的灯组，使得即使环境条件导致一些灯具有低电阻，所有的灯也可以被照亮。 电容器连接到第一电极，并且某些平衡线圈绕组连接到一个灯组的第二电极，而在第二灯组中，其余的平衡线圈绕组连接到第一电极，电容器连接到 第二电极，流经平衡线圈绕组的电流到受电流流过平衡线圈绕组至其他灯影响的一些灯。

公开(公告)号：US20070182343A1

公开(公告)日：2007-08-09

申请号：US11703897

申请日：2007-02-07

申请人： Young Sup Kwon

发明人： Young Sup Kwon

IPC分类号： H05B41/24

CPC分类号： H05B41/245

摘要： A lamp driving apparatus wherein a plurality of two-winding balance circuits are connected to a plurality of parallel-connected lamp groups so that all of the lamps may be illuminated even though ambient conditions cause some of the lamps to have low resistance. Capacitors are connected to first electrodes and certain of the balance coil windings are connected to second electrodes of one of the lamp groups while, in a second lamp group, others of the balance coil windings are connected to the first electrodes and capacitors are connected to the second electrodes thereof, current flowing through balance coil windings to some lamps being affected by current flowing through balance coil windings to other lamps.

摘要翻译： 一种灯驱动装置，其中多个二绕组平衡电路连接到多个并联连接的灯组，使得即使环境条件导致一些灯具有低电阻，所有的灯也可以被照亮。 电容器连接到第一电极，并且某些平衡线圈绕组连接到一个灯组的第二电极，而在第二灯组中，其余的平衡线圈绕组连接到第一电极，电容器连接到 第二电极，流经平衡线圈绕组的电流到受电流流过平衡线圈绕组至其他灯影响的一些灯。