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：US20080315789A1

公开(公告)日：2008-12-25

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）个数量的第二分支数彼此并联连接在第一连接点和第二连接点之间的n个第二中间连接点，（n + 1）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：US07839376B2

公开(公告)日：2010-11-23

申请号：US11423123

申请日：2006-06-08

申请人： Sang Cheol Shin ,  Byoung Own Min

发明人： Sang Cheol Shin ,  Byoung Own Min

IPC分类号： G09G3/36 ,  G05F1/00

CPC分类号： H05B41/2851 ,  Y02B20/186

摘要： In a time control circuit, a capacitor is connected between a connecting pin and a ground. A first current source supplies a first current to the connecting pin. A first comparator element has a non-inverse terminal connected to a voltage of the capacitor and a pre-set first reference voltage, and controls the initial startup time. A second comparator element has an inverse terminal connected to the voltage of the capacitor and a pre-set second reference voltage, and controls the soft start time. Further, a current bypass controller includes a current bypass path between the connecting pin and the ground, which connects the current bypass path after the soft start time and blocks it at an input of a protective signal. Additionally, a third comparator element has an inverse terminal connected to the voltage of the capacitor and a pre-set third reference voltage, and controls the shutdown time.

摘要翻译： 在时间控制电路中，电容器连接在连接引脚和地之间。 第一电流源向连接引脚提供第一电流。 第一比较器元件具有连接到电容器的电压的非反相端子和预设的第一参考电压，并且控制初始启动时间。 第二比较器元件具有连接到电容器的电压的反向端子和预设的第二参考电压，并且控制软启动时间。 此外，电流旁路控制器包括在连接引脚和地之间的电流旁路路径，其在软启动时间之后连接当前旁路路径，并在保护信号的输入端阻塞它。 此外，第三比较器元件具有连接到电容器的电压的反向端子和预设的第三参考电压，并且控制关断时间。

公开(公告)号：US07834711B2

公开(公告)日：2010-11-16

申请号：US12166885

申请日：2008-07-02

申请人： Yu Jin Jang ,  Byoung Own Min ,  Seung Kon Kong ,  Sang Cheol Shin ,  Jung Chul Gong

发明人： Yu Jin Jang ,  Byoung Own Min ,  Seung Kon Kong ,  Sang Cheol Shin ,  Jung Chul Gong

IPC分类号： H03K3/233 ,  H03K3/37

摘要： There is provided a frequency-variable oscillator that varies, even when a frequency of an input signal is varied, a frequency of an oscillation signal according to the varied frequency of the input signal. The frequency-variable oscillator includes: a voltage-to-current converter circuit for converting a voltage level of an input signal into a current level within a predetermined range; and an oscillator circuit for varying a frequency according to the current level from the voltage-to-current converter circuit and oscillating the varied frequency.

公开(公告)号：US07777527B2

公开(公告)日：2010-08-17

申请号：US12200031

申请日：2008-08-28

申请人： Jung Chul Gong ,  Byoung Own Min ,  Yu Jin Jang ,  Seung Kon Kong ,  Sang Cheol Shin

发明人： Jung Chul Gong ,  Byoung Own Min ,  Yu Jin Jang ,  Seung Kon Kong ,  Sang Cheol Shin

IPC分类号： G01R29/00 ,  H03D3/00 ,  H03D9/00

CPC分类号： H03D13/003

摘要： There is provided a phase detection apparatus that can accurately detect a phase difference between an input signal and a reference signal even when the input signal and the reference signal have different duty cycles. A phase detection apparatus according to an aspect of the invention may include: a pulse generation unit generating a first pulse signal on an edge of an input pulse signal, and a second pulse signal based on an edge of a reference pulse signal having a predetermined phase; and a detection unit detecting a phase difference between the first pulse signal and the second pulse signal from the pulse generation unit.

摘要翻译： 提供了即使在输入信号和参考信号具有不同的占空比的情况下，也可以精确地检测输入信号和参考信号之间的相位差的相位检测装置。 根据本发明的一个方面的相位检测装置可以包括：脉冲产生单元，其在输入脉冲信号的边缘上产生第一脉冲信号，以及基于具有预定相位的参考脉冲信号的边沿的第二脉冲信号 ; 以及检测单元，其从所述脉冲发生单元检测所述第一脉冲信号和所述第二脉冲信号之间的相位差。

公开(公告)号：US07612505B2

公开(公告)日：2009-11-03

申请号：US11812678

申请日：2007-06-20

申请人： Byoung Own Min ,  Jung Chul Gong

发明人： Byoung Own Min ,  Jung Chul Gong

IPC分类号： H05B37/02

CPC分类号： C09K9/02 ,  H05B41/2827

摘要： A LCD backlight inverter including: a dimming control unit comparing a level of a triangle wave with a level of a dimming control signal and controlling a dimming control current to be supplied or interrupted according to a comparison result; an error amplification unit having an input end to which a detection voltage corresponding to the dimming control current and a current flowing through a lamp are inputted, comparing the detection voltage with a predetermined reference voltage, and outputting an error voltage corresponding to a difference via an output end thereof, the output end working as a ground when the dimming control current is not inputted; and a time constant circuit unit comprising a resistor connected between the output end of the error amplification unit and a voltage source and a capacitor connected between the output end of the error amplification unit and a ground.

摘要翻译： 一种LCD背光逆变器，包括：调光控制单元，将三角波的电平与调光控制信号的电平进行比较，并根据比较结果控制要供应或中断的调光控制电流; 误差放大单元，其具有输入端，输入与调光控制电流对应的检测电压和流过灯的电流，将检测电压与规定的基准电压进行比较，并输出与差异对应的误差电压经由 输出端，当未输入调光控制电流时，输出端作为接地; 以及时间常数电路单元，包括连接在误差放大单元的输出端与电压源之间的电阻器和连接在误差放大单元的输出端与地之间的电容器。

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：US20080042627A1

公开(公告)日：2008-02-21

申请号：US11819571

申请日：2007-06-28

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

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

IPC分类号： G05F1/10

CPC分类号： H05B41/282 ,  G09G3/3406 ,  H05B41/2822 ,  H05B41/2855 ,  Y02B20/183

摘要： 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.

摘要翻译： 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

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

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

IPC分类号： G09G3/36 ,  G09G5/00

CPC分类号： H05B41/2828 ,  G09G3/3406 ,  Y02B20/186

摘要： 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.

摘要翻译： 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：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。