公开(公告)号：US07800566B2

公开(公告)日：2010-09-21

申请号：US11565569

申请日：2006-11-30

申请人： Chang Woo Ha ,  Sang Cheol Shin ,  Byoung Own Min

发明人： Chang Woo Ha ,  Sang Cheol Shin ,  Byoung Own Min

IPC分类号： G09G3/32

CPC分类号： H05B33/0827 ,  G09G3/3406 ,  H05B33/0815 ,  Y02B20/347

摘要： Disclosed herein is a drive device of a color light emitting diode (LED) backlight, which is capable of precisely adjusting the forward voltages of color LED arrays for each channel.The drive device for driving the color light emitting diode (LED) backlight which includes a plurality of color LED arrays includes an I/O interface for inputting/outputting a signal, a control unit for controlling a driving voltage and driving current according to a brightness control signal output from the I/O interface, a DC/DC converter for converting an operation voltage into the driving voltage according to the driving voltage control of the control unit, a voltage regulator for regulating the driving voltage output from the DC/DC converter to a reference voltage without ripple, a multi-channel driving unit for converting the reference voltage output from the voltage regulator into forward voltages of the plurality of color LED arrays according to a plurality of control signals, and a current source for adjusting the amount of the driving current flowing in the color LED backlight according to the driving current control of the control unit.

摘要翻译： 这里公开了彩色发光二极管（LED）背光源的驱动装置，其能够精确地调整每个通道的彩色LED阵列的正向电压。 用于驱动包括多个彩色LED阵列的彩色发光二极管（LED）背光的驱动装置包括用于输入/输出信号的I / O接口，用于根据亮度控制驱动电压和驱动电流的控制单元 从I / O接口输出的控制信号，用于根据控制单元的驱动电压控制将工作电压转换为驱动电压的DC / DC转换器，用于调节从DC / DC转换器输出的驱动电压的电压调节器 到没有纹波的参考电压;多通道驱动单元，用于根据多个控制信号将从稳压器输出的参考电压转换成多个彩色LED阵列的正向电压;以及电流源，用于调节 根据控制单元的驱动电流控制在彩色LED背光中流动的驱动电流。

公开(公告)号：US20100141300A1

公开(公告)日：2010-06-10

申请号：US12437713

申请日：2009-05-08

申请人： Bo Hyun Hwang ,  Byoung Own Min ,  Jeong In Cheon ,  Yu Jin Jang ,  Seung Kon Kong ,  Sang Cheol Shin

发明人： Bo Hyun Hwang ,  Byoung Own Min ,  Jeong In Cheon ,  Yu Jin Jang ,  Seung Kon Kong ,  Sang Cheol Shin

IPC分类号： H03K19/0175

CPC分类号： H05B33/0818 ,  G09G3/3406 ,  G09G2330/04 ,  H05B33/0848 ,  H05B33/0887 ,  H05B41/2828 ,  H05B41/2855 ,  Y02B20/346

摘要： An inverter driver integrated circuit (IC) includes a control signal generator generating a first control signal and a second control signal by use of a pulse width modulation oscillator signal, a comparator comparing a half-wave rectified signal of a lamp feedback signal fed back from a lamp with a preset reference signal to output a lamp state signal, a first sensor receiving the lamp state signal and the second control signal to output a first sensing signal, and a second sensor receiving the first sensing signal and the first control signal to output a second sensing signal.

摘要翻译： 逆变器驱动器集成电路（IC）包括通过使用脉冲宽度调制振荡器信号产生第一控制信号和第二控制信号的控制信号发生器，比较将反馈信号反馈的灯反馈信号的半波整流信号 具有预置参考信号以输出灯状态信号的灯，接收灯状态信号的第一传感器和第二控制信号以输出第一感测信号，以及接收第一感测信号和第一控制信号的第二传感器，以输出 第二感测信号。

公开(公告)号：US20110298382A1

公开(公告)日：2011-12-08

申请号：US13209122

申请日：2011-08-12

申请人： Young Jin LEE ,  Byoung Own Min ,  Gil Han Park ,  Grigory Onushkin

发明人： Young Jin LEE ,  Byoung Own Min ,  Gil Han Park ,  Grigory Onushkin

IPC分类号： H05B37/00

CPC分类号： H05B33/0803 ,  H05B33/0821 ,  Y02B20/342 ,  Y10S362/80 ,  Y10S362/808

摘要： There is provided an LED driving circuit including: at least one ladder network circuit including: (n+1) number of first branches connected in parallel with one another by n number of first middle junction points between a first junction point and a second junction point, where n denotes an integer satisfying n≧2, (n+1) number of second branches connected in parallel with one another by n number of second middle junction points between the first junction point and the second junction point, the (n+1) number of second branches connected in parallel with the first branches; and n number of middle branches connecting the first and second middle junction points of an identical m sequence to each other, respectively, wherein each of the first and second, and middle branches comprises at least one LED device.

摘要翻译： 提供了一种LED驱动电路，包括：至少一个梯形网络电路，包括：（n + 1）数个第一分支，其在第一连接点和第二连接点之间彼此并联连接n个第一中间连接点 ，其中n表示满足n≥2的整数，（n + 1）个在第一连接点和第二连接点之间由n个第二中间连接点彼此并联连接的第二分支数，第（n + 1）个 ）与第一分支并联连接的第二分支的数量; 以及分别将相同m个序列的第一和第二中间连接点彼此连接的n个中间分支，其中第一和第二和中间分支中的每一个包括至少一个LED装置。

公开(公告)号：US08026675B2

公开(公告)日：2011-09-27

申请号：US12213506

申请日：2008-06-20

申请人： Young Jin Lee ,  Byoung Own Min ,  Gil Han Park ,  Grigory Onushkin

发明人： Young Jin Lee ,  Byoung Own Min ,  Gil Han Park ,  Grigory Onushkin

IPC分类号： H05B37/02

CPC分类号： H05B33/0803 ,  H05B33/0821 ,  Y02B20/342 ,  Y10S362/80 ,  Y10S362/808

摘要： There is provided an LED driving circuit including: at least one ladder network circuit including: (n+1) number of first branches connected in parallel with one another by n number of first middle junction points between a first junction point and a second junction point, where n denotes an integer satisfying n≧2, (n+1) number of second branches connected in parallel with one another by n number of second middle junction points between the first junction point and the second junction point, the (n+1) number of second branches connected in parallel with the first branches; and n number of middle branches connecting the first and second middle junction points of an identical m sequence to each other, respectively, wherein each of the first and second, and middle branches comprises at least one LED device.

摘要翻译： 提供了一种LED驱动电路，包括：至少一个梯形网络电路，包括：（n + 1）数个第一分支，其在第一连接点和第二连接点之间彼此并联连接n个第一中间连接点 ，其中n表示满足n≥2的整数，（n + 1）个在第一连接点和第二连接点之间由n个第二中间连接点彼此并联连接的第二分支数，第（n + 1）个 ）与第一分支并联连接的第二分支的数量; 以及分别将相同m个序列的第一和第二中间连接点彼此连接的n个中间分支，其中第一和第二和中间分支中的每一个包括至少一个LED装置。

公开(公告)号：US20100102750A1

公开(公告)日：2010-04-29

申请号：US12606800

申请日：2009-10-27

申请人： Jeong In Cheon ,  Byoung Own Min ,  Yu Jin Jang ,  Seung Kon Kong

发明人： Jeong In Cheon ,  Byoung Own Min ,  Yu Jin Jang ,  Seung Kon Kong

IPC分类号： H05B37/02

CPC分类号： H05B33/0815 ,  Y02B20/341 ,  Y02B20/346

摘要： The present invention relates to a light emitting diode driver having a protection function that activates hiccup mode for a predetermined period of time when a light emitting diode performs an abnormal operation to thereby protect the light emitting diode. A light emitting diode driver having a protection function according to an aspect of the invention may include: a light emitting unit emitting light; a reference signal generating unit generating a reference signal having pulses with a predetermined period when the light emitting unit performs an abnormal operation; a control unit controlling operating time in hiccup mode according to the reference signal from the reference signal generating unit, the hiccup mode where output is switched on and off at a predetermined period; and a driving unit driving the light emitting unit in the hiccup mode for the operating time determined by the control unit.

摘要翻译： 本发明涉及具有保护功能的发光二极管驱动器，该保护功能在发光二极管执行异常操作从而保护发光二极管时，在预定时间段内激活打嗝模式。 根据本发明的一个方面的具有保护功能的发光二极管驱动器可以包括：发光单元; 参考信号产生单元，当所述发光单元执行异常操作时，产生具有预定周期的脉冲的参考信号; 控制单元，根据来自基准信号生成单元的基准信号控制打嗝模式的动作时间，以预定时间段接通和断开输出的打嗝模式; 以及驱动单元，在由所述控制单元确定的所述操作时间的情况下，以所述打嗝模式驱动所述发光单元。

公开(公告)号：US07646181B2

公开(公告)日：2010-01-12

申请号：US11928845

申请日：2007-10-30

申请人： Jeong In Cheon ,  Byoung Own Min ,  Chang Woo Ha ,  Deuk Hee Park

发明人： Jeong In Cheon ,  Byoung Own Min ,  Chang Woo Ha ,  Deuk Hee Park

IPC分类号： G05F1/40 ,  G05F1/56

CPC分类号： H02M3/3376 ,  H02M1/36 ,  H02M2001/0058 ,  Y02B70/1491

摘要： A control circuit of a DC-DC converter is provided. A mode selection section selects an Active Clamp Forward (ACF) or a Logic Link Control (LLC) mode. A soft start section generates a soft start signal in the ACF and LLC modes. A PWM comparison section compares a current detection signal with a feedback signal, a feedback reference signal and the soft start signal in the ACF mode, and generates a PWM signal based on a comparison result. A selection section selects the PWM signal of the PWM comparison section in the ACF mode. A clock generation section generates a clock signal having a fixed frequency in the ACF mode, and generates a clock signal having a frequency based on an operating current and the soft start signal in the LLC mode. A latch section maintains the PWM signal in response to the clock signal in the ACF mode and maintains the clock signal in the LLC mode.

摘要翻译： 提供DC-DC转换器的控制电路。 模式选择部分选择有源钳位前馈（ACF）或逻辑链路控制（LLC）模式。 软启动部分在ACF和LLC模式下产生软启动信号。 PWM比较部分将电流检测信号与ACF模式中的反馈信号，反馈参考信号和软启动信号进行比较，并且基于比较结果生成PWM信号。 选择部分在ACF模式下选择PWM比较部分的PWM信号。 时钟产生部分以ACF模式产生具有固定频率的时钟信号，并且在LLC模式下产生具有基于工作电流的频率和软启动信号的时钟信号。 锁存部分响应于ACF模式中的时钟信号而保持PWM信号，并将时钟信号保持在LLC模式。

公开(公告)号：US08339050B2

公开(公告)日：2012-12-25

申请号：US13209122

申请日：2011-08-12

申请人： Young Jin Lee ,  Byoung Own Min ,  Gil Han Park ,  Grigory Onushkin

发明人： Young Jin Lee ,  Byoung Own Min ,  Gil Han Park ,  Grigory Onushkin

IPC分类号： H05B37/00

CPC分类号： H05B33/0803 ,  H05B33/0821 ,  Y02B20/342 ,  Y10S362/80 ,  Y10S362/808

摘要： There is provided an LED driving circuit including: at least one ladder network circuit including: (n+1) number of first branches connected in parallel with one another by n number of first middle junction points between a first junction point and a second junction point, where n denotes an integer satisfying n≧2, (n+1) number of second branches connected in parallel with one another by n number of second middle junction points between the first junction point and the second junction point, the (n+1) number of second branches connected in parallel with the first branches; and n number of middle branches connecting the first and second middle junction points of an identical m sequence to each other, respectively, wherein each of the first and second, and middle branches comprises at least one LED device.

摘要翻译： 提供了一种LED驱动电路，包括：至少一个梯形网络电路，包括：（n + 1）数个第一分支，其在第一连接点和第二连接点之间彼此并联连接n个第一中间连接点 ，其中n表示满足n≥2的整数，（n + 1）个在第一连接点和第二连接点之间由n个第二中间连接点彼此并联连接的第二分支数，第（n + 1）个 ）与第一分支并联连接的第二分支的数量; 以及分别将相同m个序列的第一和第二中间连接点彼此连接的n个中间分支，其中第一和第二和中间分支中的每一个包括至少一个LED器件。

公开(公告)号：US07498752B2

公开(公告)日：2009-03-03

申请号：US11320794

申请日：2005-12-30

申请人： Suok Gyu Min ,  Gun-Woo Moon ,  Won Sik Oh ,  Byoung Own Min ,  Jong Sun Kim

发明人： Suok Gyu Min ,  Gun-Woo Moon ,  Won Sik Oh ,  Byoung Own Min ,  Jong Sun Kim

IPC分类号： G05F1/00

CPC分类号： H05B41/2825 ,  Y02B20/185

摘要： A driving method of external electrode fluorescent lamp inverter for backlight. In the driving method, a square wave voltage frequency for driving the external electrode fluorescent lamp is applied to the primary side of a transformer in the region whose frequency is substantially ½ of the resonant frequency which is determined by the capacitance of the external electrode fluorescent lamp and the leakage inductance of the transformer. Then, the external electrode fluorescent lamp is caused to emit light by the self-discharge to thereby obtain high efficiency and high luminance. The driving method of external electrode fluorescent lamp inverter for backlight includes applying a square wave voltage for driving an external electrode fluorescent lamp to the primary side of a transformer; and applying the square wave voltage to the primary side of transformer in a region where the frequency thereof is substantially ½ of a resonant frequency, which is determined by the capacitance of the external electrode fluorescent lamp and the leakage inductance of the transformer, and thus causing the external electrode fluorescent lamp to emit light by the self-discharge.

摘要翻译： 用于背光的外部电极荧光灯逆变器的驱动方法。 在驱动方法中，用于驱动外部电极荧光灯的方波电压频率被施加到变压器的初级侧，其频率基本上是由外部电极荧光灯的电容决定的谐振频率的1/2 和变压器的漏电感。 然后，通过自放电使外部电极荧光灯发​​光，从而获得高效率和高亮度。 用于背光的外部电极荧光灯反相器的驱动方法包括将用于驱动外部电极荧光灯的方波电压施加到变压器的初级侧; 并且在频率基本上是由外部电极荧光灯的电容和变压器的漏电感确定的谐振频率的1/2的区域中将方波电压施加到变压器的初级侧，从而导致 外部电极荧光灯通过自放电发光。

公开(公告)号：US07271520B2

公开(公告)日：2007-09-18

申请号：US11435745

申请日：2006-05-18

申请人： Byoung Own Min ,  Chang Woo Ha

发明人： Byoung Own Min ,  Chang Woo Ha

IPC分类号： H01L41/09

CPC分类号： H02N2/0075

摘要： The present invention relates to a piezo actuator driving circuit. The piezo actuator driving circuit includes a pulse generator that generates a first voltage pulse with a constant period; a first driver stage that receives the first voltage pulse of the pulse generator and buffers the first voltage pulse to output; a second driver stage that converts the first voltage pulse, buffered and output in the first driver stage, into a first current pulse to output; a driving voltage maintaining section that is connected to the pulse generator and the second driver stage so as to output a second current pulse for maintaining a constant amplitude of driving voltage pulse; and a piezo actuator that is connected to the second driver stage and the driving voltage maintaining section so as to be charged and discharged by the first and second current pulses and that is driven by the driving voltage pulse with a constant amplitude.

摘要翻译： 本发明涉及压电致动器驱动电路。 压电致动器驱动电路包括产生具有恒定周期的第一电压脉冲的脉冲发生器; 第一驱动器级，接收脉冲发生器的第一电压脉冲并缓冲第一电压脉冲以输出; 将第一驱动级中缓冲和输出的第一电压脉冲转换成第一电流脉冲以输出的第二驱动级; 驱动电压保持部，其连接到所述脉冲发生器和所述第二驱动级，以输出用于维持驱动电压脉冲的恒定幅度的第二电流脉冲; 以及压电致动器，其连接到第二驱动级和驱动电压保持部，以便由第一和第二电流脉冲进行充电和放电，并且由驱动电压脉冲以恒定幅度驱动。

公开(公告)号：US06864643B2

公开(公告)日：2005-03-08

申请号：US10668356

申请日：2003-09-24

申请人： Byoung Own Min ,  Hyoung Jun Jeon ,  Hyun Jin Kim

发明人： Byoung Own Min ,  Hyoung Jun Jeon ,  Hyun Jin Kim

IPC分类号： H05B41/24 ,  H02M7/493 ,  H05B41/282 ,  H05B41/392

CPC分类号： H05B41/2824 ,  H05B41/3927 ,  Y02B20/186

摘要： A backlight inverter for an LCD panel of an asynchronous pulse width modulation (PWM) driving type which is capable of driving a plurality of cold cathode fluorescent lamps (CCFLs) in pairs and controlling a plurality of PWM drive signals for respective operations of the lamps to make the phases thereof different. The backlight inverter comprises a main driving integrated circuit (IC), at least one sub-driving IC, and a plurality of lamp operating circuits for operating the pairs of lamps in response to the first and second PWM drive signals and the third and fourth PWM drive signals, respectively. The lamps have different PWM on/off periods so that overshoot of a power supply circuit can be reduced so as to keep the entire system power stable.

摘要翻译： 一种用于异步脉宽调制（PWM）驱动型LCD面板的背光反相器，其能够成对地驱动多个冷阴极荧光灯（CCFL）并且控制用于灯的相应操作的多个PWM驱动信号 使其相位不同。 背光源逆变器包括主驱动集成电路（IC），至少一个子驱动IC和多个灯操作电路，用于响应于第一和第二PWM驱动信号和第三和第四PWM来操作成对的灯 驱动信号。 这些灯具有不同的PWM导通/截止周期，从而可以减小电源电路的过冲，从而保持整个系统的功率稳定。