专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

31. 发明授权

US07333541B2 Variable square-wave drive device 失效
标题翻译：可变方波驱动装置
公开(公告)号：US07333541B2
公开(公告)日：2008-02-19
申请号：US10849960
申请日：2004-05-21
申请人： Byoung Own Min , Hyun Jin Kim , Hyoung Jun Jeon
发明人： Byoung Own Min , Hyun Jin Kim , Hyoung Jun Jeon
IPC分类号： H04B17/00
CPC分类号： G02F1/13306 , G02F1/29
摘要： A variable square-wave drive device for controlling square waves using feedback- and bias-control methods. The variable square-wave drive device includes an oscillator for generating a clock pulse; a frequency-divider/duty controller for frequency-dividing the clock pulse received from the oscillator to generate a clock signal and a square-wave signal; a drive for amplifying the square-wave signal received from the frequency-divider/duty controller according to a bias voltage, generating first and second square-wave signals having opposite phases, and outputting the first and second square-wave signals as a square-wave drive signal; a feedback controller for comparing a predetermined voltage variable determined by a user with the bias voltage of the drive to generate a comparison result signal; a switching controller for generating a switching signal upon receiving the comparison result signal from the feedback controller; and a bias voltage regulator for charging/discharging the input voltage according to the switching signal received from the switching controller so that it can adjust the bias voltage of the drive.
摘要翻译：一种使用反馈和偏置控制方法控制方波的可变方波驱动装置。可变方波驱动装置包括用于产生时钟脉冲的振荡器; 用于对从振荡器接收的时钟脉冲进行分频以产生时钟信号和方波信号的分频器/占空比控制器; 驱动器，用于根据偏置电压放大从分频器/占空比控制器接收的方波信号，产生具有相反相位的第一和第二方波信号，并将第一和第二方波信号输出为方波，波驱动信号; 用于将由用户确定的预定电压变量与所述驱动器的偏置电压进行比较以产生比较结果信号的反馈控制器; 切换控制器，用于在从反馈控制器接收到比较结果信号时产生切换信号; 以及偏置电压调节器，用于根据从开关控制器接收的开关信号对输入电压进行充电/放电，从而可以调节驱动器的偏置电压。

32. 发明授权

US07285922B2 Driving apparatus for CCFL 失效
标题翻译： CCFL驱动装置
公开(公告)号：US07285922B2
公开(公告)日：2007-10-23
申请号：US11421219
申请日：2006-05-31
申请人： Jung Chul Gong , Sang Cheol Shin , Byoung Own Min , Chang Woo Ha
发明人： Jung Chul Gong , Sang Cheol Shin , Byoung Own Min , Chang Woo Ha
IPC分类号： G05F1/00
CPC分类号： H05B41/2828 , H05B41/382 , Y02B20/186 , Y10S315/05
摘要： The invention relates to a driving apparatus for a CCFL capable of providing a high output voltage necessary for an open lamp and thereby satisfying a voltage standard required to drive the lamp. In the driving apparatus, an inverter made of a switching circuit of a half-bridge structure is used to generate current for driving the lamp. If the lamp is open, a tuning capacitor current of an oscillator, which provides a reference clock for driving a switch of the inverter is incremented so that a clock frequency which is a basis for a switching speed of the inverter is boosted. This consequently increases the switching speed of the inverter and then an output voltage.
摘要翻译：本发明涉及一种用于CCFL的驱动装置，其能够提供开放灯所需的高输出电压，从而满足驱动灯所需的电压标准。在驱动装置中，使用由半桥结构的开关电路构成的逆变器来产生用于驱动灯的电流。如果灯打开，则提供提供用于驱动逆变器的开关的参考时钟的振荡器的调谐电容器电流被增加，从而提高作为逆变器的开关速度的基础的时钟频率。这因此增加了逆变器的开关速度，然后增加了输出电压。

33. 发明授权

US07282870B2 Driving apparatus for CCFL 失效
标题翻译： CCFL驱动装置
公开(公告)号：US07282870B2
公开(公告)日：2007-10-16
申请号：US11420944
申请日：2006-05-30
申请人： Jung Chul Gong , Byoung Own Min
发明人： Jung Chul Gong , Byoung Own Min
IPC分类号： G05F1/00
CPC分类号： H05B41/282 , Y02B20/183 , Y10S315/05
摘要： The invention relates to a driving apparatus for a CCFL capable of easily providing a high output required to start the lamp. In the apparatus, an oscillator provides a reference signal in accordance with a lamp-on condition or a lamp-out condition. According to the invention, a tuning capacitor current of an oscillator is increased so that a switching speed of an inverter becomes faster in the lamp-out condition than in the lamp-on condition, thereby satisfying the voltage required to start the lamp.
摘要翻译：本发明涉及一种用于CCFL的驱动装置，其能够容易地提供启动灯所需的高输出。在该装置中，振荡器根据点灯状态或灯熄灭状况提供参考信号。根据本发明，振荡器的调谐电容器电流增加，使得在熄灯状态下逆变器的切换速度比在点灯状态下变得更快，从而满足启动灯所需的电压。

34. 发明授权

US06930898B2 Single-stage backlight inverter and method for driving the same 失效
标题翻译：单级背光逆变器及其驱动方法
公开(公告)号：US06930898B2
公开(公告)日：2005-08-16
申请号：US10795341
申请日：2004-03-09
申请人： Hyoung Jun Jeon , Byoung Own Min , Hyun Jin Kim
发明人： Hyoung Jun Jeon , Byoung Own Min , Hyun Jin Kim
IPC分类号： H05B41/26 , H02M7/5387 , H05B41/282
CPC分类号： H05B41/2828 , H02M7/53871 , Y02B20/186
摘要： Disclosed herein are a single-stage backlight inverter and a method for driving the same. The single-stage backlight inverter comprises a main oscillator for generating a predetermined triangle-wave oscillation signal, a predetermined clock signal and an inverted clock signal, and an output drive controller responsive to the triangle-wave oscillation signal, clock signal and inverted clock signal from the main oscillator and first and second reference voltages set therein. The second reference voltage has a level set to an intermediate level of the triangle-wave oscillation signal. The output drive controller is adapted to generate a first drive control signal and generate a second drive control signal. The inverter further comprises a first output unit for outputting a pair of first switching signals in response to the first drive control signal, and a second output unit for outputting a pair of second switching signals in response to the second drive control signal.
摘要翻译：本文公开了单级背光逆变器及其驱动方法。单级背光反相器包括用于产生预定三角波振荡信号的主振荡器，预定时钟信号和反相时钟信号，以及响应于三角波振荡信号，时钟信号和反相时钟信号的输出驱动控制器从主振荡器和其中设置的第一和第二参考电压。第二参考电压具有设置为三角波振荡信号的中间电平的电平。输出驱动控制器适于产生第一驱动控制信号并产生第二驱动控制信号。逆变器还包括用于响应于第一驱动控制信号输出一对第一开关信号的第一输出单元和用于响应于第二驱动控制信号输出一对第二开关信号的第二输出单元。

35. 发明授权

US5874847A Charge pump circuit for controlling a pair of drive transistors 失效
标题翻译：用于控制一对驱动晶体管的电荷泵电路
公开(公告)号：US5874847A
公开(公告)日：1999-02-23
申请号：US748213
申请日：1996-11-12
申请人： Yong-Ho Kim , Byoung-Own Min
发明人： Yong-Ho Kim , Byoung-Own Min
IPC分类号： G11C5/14 , G11C11/407 , H02M3/07 , H03K17/06 , H03K17/16 , H03K17/687
CPC分类号： H03K17/063 , H02M3/07
摘要： A charge pump circuit for charging/pumping charge into/out of a charge pumping capacitor. Charge is pumped from the capacitor to turn on one of a pair of MOSFET transistors formed in an integrated circuit for driving a load. The MOSFET transistors are connected at a node in series with one another. The charging capacitor has one end connected at the node and the other connected through a diode to one side of a power supply which is also applied across both transistors. An input signal turns the MOSFETs on and off in a complementary fashion. Each MOSFET has a gate which is discharged to ground when the MOSFET is turned off. A zener diode prevents the capacitor from pumping excess charge to the gate of the MOSFET to which it is connected. Another zener diode prevents damage resulting from excessive voltage external to the integrated circuit.
摘要翻译：用于对电荷泵送电容器进行充电/泵送的电荷泵电路。从电容器泵浦电荷，以接通形成在用于驱动负载的集成电路中的一对MOSFET晶体管中的一个。 MOSFET晶体管彼此串联连接在节点上。充电电容器的一端连接在节点处，而另一端通过二极管连接到也施加在两个晶体管上的电源的一侧。输入信号以互补的方式打开和关闭MOSFET。每个MOSFET都有一个栅极，当MOSFET关断时，该栅极被放电到地。齐纳二极管阻止电容器将过多的电荷泵送到与其连接的MOSFET的栅极。另一个齐纳二极管可防止由集成电路外部的过大电压引起的损坏。

36. 发明授权

US08643587B2 Field sequential color mode liquid crystal display 有权
标题翻译：现场顺序彩色模式液晶显示
公开(公告)号：US08643587B2
公开(公告)日：2014-02-04
申请号：US11566505
申请日：2006-12-04
申请人： Chang Woo Ha , Byoung Own Min , Jeong In Cheon , Yu Jin Jang
发明人： Chang Woo Ha , Byoung Own Min , Jeong In Cheon , Yu Jin Jang
IPC分类号： G09G3/36
CPC分类号： G09G3/3413 , G09G2310/0235 , G09G2320/064 , H05B33/0818 , Y02B20/347
摘要： In an FSC mode LCD, a controller operates in response to an external adjustment, and a DC/DC converter converts a battery voltage into a driving voltage under control of the controller. A color LED backlight includes first, second and third color LED arrays connected in parallel, which are operated by the driving voltage. An FSC generator generates first, second and third color PWM signals according to an internal sawtooth voltage and a dimming voltage. A 3-channel current source generates first, second and third driving currents under control of the controller, and on/off switches paths of the first, second and third driving currents flowing through the first, second and third color LED arrays according to the first, second and third color PWM signals generated from the FSC generator, thereby adjusting luminance of the first, second and third color LED arrays of the color LED backlight.
摘要翻译：在FSC模式LCD中，控制器响应于外部调整而工作，并且DC / DC转换器在控制器的控制下将电池电压转换成驱动电压。彩色LED背光包括由驱动电压操作的并联连接的第一，第二和第三彩色LED阵列。 FSC发生器根据内部锯齿电压和调光电压产生第一，第二和第三颜色PWM信号。 3通道电流源在控制器的控制下产生第一，第二和第三驱动电流，并且根据第一，第二和第三驱动电流在第一，第二和第三彩色LED阵列中的第一，第二和第三驱动电流的开/关，从FSC发生器产生的第二和第三颜色PWM信号，从而调整彩色LED背光的第一，第二和第三颜色LED阵列的亮度。

37. 发明授权

US07940014B2 Apparatus for driving light emitting element 有权
标题翻译：用于驱动发光元件的装置
公开(公告)号：US07940014B2
公开(公告)日：2011-05-10
申请号：US12254520
申请日：2008-10-20
申请人： Sang Cheol Shin , Byoung Own Min , Jung Chul Gong , Yu Jin Jang , Seung Kon Kong
发明人： Sang Cheol Shin , Byoung Own Min , Jung Chul Gong , Yu Jin Jang , Seung Kon Kong
IPC分类号： H05B37/02
CPC分类号： H05B33/0818
摘要： Provided is an apparatus for driving a light emitting element. The apparatus includes a power unit, a light emitting element array, a constant-current circuit unit, and a voltage limiting circuit unit. The power unit supplies driving power. The light emitting element array includes a plurality of light emitting elements connected in series between an anode terminal connected to the power unit and a cathode terminal. The constant-current circuit unit maintains a constant current flowing through the light emitting element array according to a first tuning voltage. The voltage limiting circuit unit is connected between the cathode terminal of the light emitting element array and the constant-current circuit unit, and divides a total voltage applied between the cathode terminal of the light emitting element array and a ground according to a second tuning voltage to limit a voltage applied to the constant-current circuit unit below a predetermined voltage.
摘要翻译：提供一种驱动发光元件的装置。该装置包括功率单元，发光元件阵列，恒流电路单元和电压限制电路单元。电源单元提供驱动电源。发光元件阵列包括串联连接到电源单元的阳极端子和阴极端子之间的多个发光元件。恒流电路单元根据第一调谐电压维持流过发光元件阵列的恒定电流。电压限制电路单元连接在发光元件阵列的阴极端子和恒流电路单元之间，并且根据第二调谐电压将施加在发光元件阵列的阴极端子与地之间的总电压分压以将施加到恒流电路单元的电压限制在预定电压以下。

38. 发明授权

US07868560B2 Inverter driving circuit for LCD backlight 失效
标题翻译：逆变驱动电路用于LCD背光
公开(公告)号：US07868560B2
公开(公告)日：2011-01-11
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： H05B41/36
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。

39. 发明申请

US20100109547A1 LCD BACKLIGHT INVERTER 有权
标题翻译：液晶背光逆变器
公开(公告)号：US20100109547A1
公开(公告)日：2010-05-06
申请号：US12437692
申请日：2009-05-08
申请人： Yu Jin JANG , Byoung own Min , Jung Chul Gong , Sang Cheol Shin , Jeong In Cheon
发明人： Yu Jin JANG , Byoung own Min , Jung Chul Gong , Sang Cheol Shin , Jeong In Cheon
IPC分类号： H05B41/292
CPC分类号： H05B41/2855
摘要： Disclosed is a liquid crystal display (LCD) backlight inverter. The LCD backlight inverter includes a lamp open detection unit outputting a first open detection voltage for a preset time period when it is determined that a predetermined lamp is open, based on a current voltage corresponding to the current of the predetermined lamp of a plurality of lamps, a first open determination unit outputting an open detection signal when the first open detection voltage is input, a second open determination unit outputting a protection signal when it is determined that all of the plurality of lamps are open based on detection voltages of the plurality of lamps, a temporary protection determination unit outputting a frequency change signal when both the open detection signal and the protection signal are input, and an operating frequency control unit changing an operating frequency to a preset protective frequency according to the frequency change.
摘要翻译：公开了一种液晶显示（LCD）背光逆变器。 LCD背光逆变器包括：灯开路检测单元，基于与多个灯的预定灯的电流相对应的电流电压，当确定预定灯打开时，将预定时间段的第一开路检测电压输出第一开路判定单元，当输入第一开路检测电压时，输出开路检测信号;第二开路判定单元，基于多个灯的检测电压确定多个灯全部断开时，输出保护信号灯，当输入开放检测信号和保护信号时输出频率变化信号的临时保护判定单元，以及根据频率变化将工作频率改变为预设保护频率的工作频率控制单元。

40. 发明申请

US20100102756A1 APPARATUS FOR DRIVING LIGHT EMITTING DEVICE 有权
标题翻译：驱动发光装置的装置
公开(公告)号：US20100102756A1
公开(公告)日：2010-04-29
申请号：US12578823
申请日：2009-10-14
申请人： Sang Cheol Shin , Byoung Own Min , Jung Chul Gong , Bon Ahm Goo
发明人： Sang Cheol Shin , Byoung Own Min , Jung Chul Gong , Bon Ahm Goo
IPC分类号： H05B41/36
CPC分类号： H05B33/0815 , H05B33/0851 , Y02B20/341 , Y02B20/347
摘要： An apparatus for driving a light emitting device according to an aspect of the invention may include: a DC/DC converter unit generating driving power on the basis of an input voltage and supplying the generated driving power to an anode of a light emitting unit including a plurality of light emitting devices; a current source controlling to keep current flowing through the light emitting unit constant; a feedback circuit unit detecting voltage at a cathode of the light emitting unit; and a feedback coupling circuit unit coupling the output of the feedback circuit unit and the input of the DC/DC converter unit to supply the input voltage of the DC/DC converter unit according to the voltage detected by the feedback circuit unit and an output voltage of the DC/DC converter unit.
摘要翻译：根据本发明的一个方面的用于驱动发光器件的装置可以包括：DC / DC转换器单元，其基于输入电压产生驱动电力并将所产生的驱动功率提供给包括发光单元的发光单元的阳极多个发光装置; 电流源，用于保持电流流过所述发光单元恒定; 检测所述发光单元的阴极处的电压的反馈电路单元; 以及反馈耦合电路单元，其将反馈电路单元的输出和DC / DC转换器单元的输入耦合，以根据由反馈电路单元检测到的电压和DC / DC转换器单元的输出电压来提供DC / DC转换器单元的输入电压的DC / DC转换器单元。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式