公开(公告)号：US08339050B2

公开(公告)日：2012-12-25

申请号：US13209122

申请日：2011-08-12

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

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

IPC: H05B37/00

CPC classification number: H05B33/0803 ,  H05B33/0821 ,  Y02B20/342 ,  Y10S362/80 ,  Y10S362/808

Abstract: 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.

Abstract translation: 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：US08247993B2

公开(公告)日：2012-08-21

申请号：US12560915

申请日：2009-09-16

Applicant: Jung Chul Gong ,  Byoung Own Min ,  Bon Ahm Goo ,  Sang Cheol Shin

Inventor： Jung Chul Gong ,  Byoung Own Min ,  Bon Ahm Goo ,  Sang Cheol Shin

IPC: H05B37/02

CPC classification number: H05B33/0827 ,  G09G3/342 ,  G09G2330/12

Abstract: An apparatus for driving multi-light emitting devices that drives a multi-channel light emitting unit having a plurality of light emitting channels connected in parallel with each other, each of which has a plurality of light emitting devices connected in series with each other according to an aspect of the invention may include: a DC/DC converter generating a driving voltage; a current control unit having a plurality of current sources connected between cathodes of the plurality of light emitting channels and a ground; a minimum voltage selection unit detecting a minimum detection voltage among the plurality of detected voltages at the cathodes of the plurality of light emitting channels; a first error detection unit detecting an error voltage determined by the difference between the minimum detection voltage and a predetermined first reference voltage; and a feedback coupling unit supplying the input voltage according to the error voltage and the driving voltage.

Abstract translation: 一种用于驱动多发光器件的装置，其驱动具有彼此并联连接的多个发光通道的多通道发光单元，每个发光单元具有多个根据 本发明的一个方面可以包括：产生驱动电压的DC / DC转换器; 电流控制单元，其具有连接在所述多个发光通道的阴极和地之间的多个电流源; 最小电压选择单元，检测多个发光通道的阴极处的多个检测电压中的最小检测电压; 第一误差检测单元，检测由所述最小检测电压和预定的第一参考电压之间的差确定的误差电压; 以及反馈耦合单元，根据误差电压和驱动电压提供输入电压。

公开(公告)号：US07746318B2

公开(公告)日：2010-06-29

申请号：US11695222

申请日：2007-04-02

Applicant: Sang Cheol Shin ,  Byoung Own Min ,  Chang Woo Ha ,  Jung Chul Gong

Inventor： Sang Cheol Shin ,  Byoung Own Min ,  Chang Woo Ha ,  Jung Chul Gong

IPC: G09G3/36

CPC classification number: H05B41/386

Abstract: An LCD backlight inverter includes a soft starter for generating a soft-start reference voltage gradually increasing as the driving power begins to be supplied. The LCD backlight inverter also includes a first error detector for receiving a first feedback voltage indicating the magnitude of driving current of the lamp and for comparing a smaller value out of a predetermined first reference voltage and the soft-start reference voltage with the first feedback voltage to generate a first error signal corresponding to the difference between the smaller value and the soft-start reference voltage. The LCD backlight inverter further includes a pulse width modulation comparator for comparing the first error signal and a triangle wave oscillation signal to output the pulse width modulation control signal with a predetermined duty ratio. The LCD backlight inverter prevents application of over-current and over-voltage to the LCD backlight to prolong the lifetime of the backlight.

Abstract translation: LCD背光逆变器包括软起动器，用于随着驱动电力开始供给而产生逐渐增加的软启动基准电压。 LCD背光逆变器还包括第一误差检测器，用于接收指示灯的驱动电流的大小的第一反馈电压，并且用于将预定的第一参考电压和软启动参考电压之间的较小值与第一反馈电压进行比较 以产生对应于较小值和软启动参考电压之间的差的第一误差信号。 LCD背光反相器还包括脉冲宽度调制比较器，用于比较第一误差信号和三角波振荡信号，以预定占空比输出脉宽调制控制信号。 LCD背光逆变器可防止对LCD背光产生过电流和过电压，延长背光源的使用寿命。

公开(公告)号：US07515004B2

公开(公告)日：2009-04-07

申请号：US11458577

申请日：2006-07-19

Applicant: Sang Cheol Shin ,  Byoung Own Min ,  Chang Woo Ha ,  Jung Chul Gong

Inventor： Sang Cheol Shin ,  Byoung Own Min ,  Chang Woo Ha ,  Jung Chul Gong

IPC: H03B27/00

CPC classification number: H03K5/1565 ,  H03K3/0322 ,  H03K5/133 ,  H03K2005/00208 ,  H03L7/0995

Abstract: A voltage controlled oscillator (VCO) for generating a clock of a 50% duty includes a VCO unit and a duty correction unit. The VCO unit generates first and second signals having a 180° phase difference to each other with an oscillation frequency according to a control voltage to output the first and second signals through first and second oscillation output terminals. The duty correction unit generates a clock signal of a 50% duty according to the first and second signals through the first and second oscillation terminals.

Abstract translation: 用于产生50％占空比的时钟的压控振荡器（VCO）包括VCO单元和占空比校正单元。 VCO单元根据控制电压产生具有振荡频率的180°相位差的第一和第二信号，以通过第一和第二振荡输出端输出第一和第二信号。 占空比校正单元通过第一和第二振荡端子根据第一和第二信号产生50％占空比的时钟信号。

公开(公告)号：US07498752B2

公开(公告)日：2009-03-03

申请号：US11320794

申请日：2005-12-30

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

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

IPC: G05F1/00

CPC classification number: H05B41/2825 ,  Y02B20/185

Abstract: 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.

Abstract translation: 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：US07417471B2

公开(公告)日：2008-08-26

申请号：US11428340

申请日：2006-06-30

Applicant: Jung Chul Gong ,  Chang Woo Ha ,  Byoung Own Min

Inventor： Jung Chul Gong ,  Chang Woo Ha ,  Byoung Own Min

IPC: H03D1/00

CPC classification number: H03K5/2418 ,  G01R19/16576

Abstract: A voltage comparator having hysteresis includes a comparing section that compares an input voltage with a reference voltage so as to output a high-level or low-level signal; and a reference voltage changing section that changes the reference voltage when a low-level signal is output from the comparing section.

Abstract translation: 具有迟滞的电压比较器包括比较部分，其将输入电压与参考电压进行比较，以便输出高电平或低电平信号; 以及参考电压变化部，其在从所述比较部输出低电平信号时，改变所述基准电压。

公开(公告)号：US20080042627A1

公开(公告)日：2008-02-21

申请号：US11819571

申请日：2007-06-28

Applicant: Sang Cheol Shin ,  Byoung Own Min ,  Jung Chul Gong ,  Yu Jin Jang

Inventor： Sang Cheol Shin ,  Byoung Own Min ,  Jung Chul Gong ,  Yu Jin Jang

IPC: G05F1/10

CPC classification number: H05B41/282 ,  G09G3/3406 ,  H05B41/2822 ,  H05B41/2855 ,  Y02B20/183

Abstract: A voltage feedback circuit for a liquid crystal display backlight inverter including a plurality of first and second transformers driven oppositely to each other, the voltage feedback circuit including: a first voltage detector detecting a first drive voltage from a first transformer; a second voltage detector detecting a second drive voltage from a second transformer; a peak detector detecting a peak of a voltage detected at a detection connection node at which an output end of the first voltage detector and an output end of the second voltage detector are connected; a voltage adjustor adjusting a peak voltage from the peak detector according to a predetermined voltage ratio; and anerror detector detecting a difference voltage between the detected voltage from the voltage adjustor and a predetermined reference voltage.

Abstract translation: 一种用于液晶显示器背光源逆变器的电压反馈电路，包括彼此相对驱动的多个第一和第二变压器，所述电压反馈电路包括：第一电压检测器，检测来自第一变压器的第一驱动电压; 第二电压检测器，检测来自第二变压器的第二驱动电压; 检测在第一电压检测器的输出端和第二电压检测器的输出端连接的检测连接节点处检测到的电压的峰值的峰值检测器; 电压调节器，根据预定电压比调整来自峰值检测器的峰值电压; 和检测来自电压调节器的检测电压与预定参考电压之间的差分电压的异常检测器。

公开(公告)号：US20070285381A1

公开(公告)日：2007-12-13

申请号：US11808161

申请日：2007-06-07

Applicant: Jung Chul Gong ,  Byoung Own Min ,  Yu Jin Jang ,  Sang Cheol Shin

Inventor： Jung Chul Gong ,  Byoung Own Min ,  Yu Jin Jang ,  Sang Cheol Shin

IPC: G09G3/36 ,  G09G5/00

CPC classification number: H05B41/2828 ,  G09G3/3406 ,  Y02B20/186

Abstract: An inverter driving circuit for an LCD is switched on/off more stably to improve heating radiation characteristics and drive efficiency. In the driving circuit, a controller supplies a first driving signal. A level shifter provides a second driving signal. A first delay circuit delays a rising section of the first driving signal to provide the first driving signal. A second delay circuit delays a falling section of the second driving signal to provide the second driving signal. Also, a power switching circuit is provided. The inverter driving circuit for the LCD, when a switching device thereof is turned off, has less current flowing in the switching device, thereby generating less heat. In addition, the inverter driving circuit prevents heat generation caused by current flowing reversely in the switching device, thereby enhancing drive efficiency.

Abstract translation: 用于LCD的逆变器驱动电路更稳定地接通/断开以提高加热辐射特性和驱动效率。 在驱动电路中，控制器提供第一驱动信号。 电平移位器提供第二驱动信号。 第一延迟电路延迟第一驱动信号的上升部分以提供第一驱动信号。 第二延迟电路延迟第二驱动信号的下降部分以提供第二驱动信号。 另外，还提供了电源开关电路。 用于LCD的逆变器驱动电路当其开关装置关闭时，在开关装置中流动的电流较少，从而产生较少的热量。 此外，逆变器驱动电路防止在开关装置中逆流流动的热量产生，从而提高驱动效率。

公开(公告)号：US07271520B2

公开(公告)日：2007-09-18

申请号：US11435745

申请日：2006-05-18

Applicant: Byoung Own Min ,  Chang Woo Ha

Inventor： Byoung Own Min ,  Chang Woo Ha

IPC: H01L41/09

CPC classification number: H02N2/0075

Abstract: 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.

Abstract translation: 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

Applicant: Byoung Own Min ,  Hyoung Jun Jeon ,  Hyun Jin Kim

Inventor： Byoung Own Min ,  Hyoung Jun Jeon ,  Hyun Jin Kim

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

CPC classification number: H05B41/2824 ,  H05B41/3927 ,  Y02B20/186

Abstract: 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.

Abstract translation: 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。