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1. 发明授权

US07746318B2 Liquid crystal display backlight inverter 失效
标题翻译：液晶显示器背光逆变器
公开(公告)号：US07746318B2
公开(公告)日：2010-06-29
申请号：US11695222
申请日：2007-04-02
申请人： Sang Cheol Shin , Byoung Own Min , Chang Woo Ha , Jung Chul Gong
发明人： Sang Cheol Shin , Byoung Own Min , Chang Woo Ha , Jung Chul Gong
IPC分类号： G09G3/36
CPC分类号： H05B41/386
摘要： 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.
摘要翻译： 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。

2. 发明授权

US07515004B2 Voltage controlled oscillator with duty correction 失效
标题翻译：具有占空比校正的压控振荡器
公开(公告)号：US07515004B2
公开(公告)日：2009-04-07
申请号：US11458577
申请日：2006-07-19
申请人： Sang Cheol Shin , Byoung Own Min , Chang Woo Ha , Jung Chul Gong
发明人： Sang Cheol Shin , Byoung Own Min , Chang Woo Ha , Jung Chul Gong
IPC分类号： H03B27/00
CPC分类号： H03K5/1565 , H03K3/0322 , H03K5/133 , H03K2005/00208 , H03L7/0995
摘要： 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.
摘要翻译：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。

3. 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。

4. 发明授权

US07737938B2 Driving circuit for LCD backlight 有权
标题翻译： LCD背光驱动电路
公开(公告)号：US07737938B2
公开(公告)日：2010-06-15
申请号：US11696529
申请日：2007-04-04
申请人： Jung Chul Gong , Byoung Own Min , Sang Cheol Shin , Chang Woo Ha
发明人： Jung Chul Gong , Byoung Own Min , Sang Cheol Shin , Chang Woo Ha
IPC分类号： G09G3/36
CPC分类号： G09G3/3406 , G09G2320/0247
摘要： In a driving circuit for an LCD backlight, a fundamental wave generator generates a triangle wave signal and a square wave signal in accordance with time constant of a time constant circuit including a time constant capacitor. A PWM comparator compares a difference signal between a feedback voltage and a preset reference voltage with the triangle wave signal to generate a PWM signal in response to the comparison result. A signal synchronizer sets a connection node between the time constant capacitor and the fundamental wave generator and an output terminal of the square wave signal in accordance with a power level of the LCD backlight. Also, a driving signal generator generates a driving signal in response to the square wave signal from the fundamental wave generator and the PWM signal from the PWM comparator. The driving circuit enables PWM controlling integrated circuits to be synchronized together.
摘要翻译：在用于LCD背光的驱动电路中，基波发生器根据包括时间常数电容器的时间常数电路的时间常数产生三角波信号和方波信号。 PWM比较器将反馈电压和预设参考电压之间的差信号与三角波信号进行比较，以响应比较结果产生PWM信号。信号同步器根据LCD背光源的功率电平设置时间常数电容器和基波发生器之间的连接节点和方波信号的输出端子。此外，驱动信号发生器响应于来自基波发生器的方波信号和来自PWM比较器的PWM信号而产生驱动信号。驱动电路使得PWM控制集成电路能够同步在一起。

5. 发明授权

US07471029B2 Frequency-control-type piezo actuator driving circuit and method of driving the same 失效
标题翻译：频率控制型压电致动器驱动电路及其驱动方法
公开(公告)号：US07471029B2
公开(公告)日：2008-12-30
申请号：US11435744
申请日：2006-05-18
申请人： Chang Woo Ha , Jung Chul Gong , Sang Cheol Shin , Byoung Own Min
发明人： Chang Woo Ha , Jung Chul Gong , Sang Cheol Shin , Byoung Own Min
IPC分类号： H01L41/08
CPC分类号： H02N2/008
摘要： The present invention relates to a frequency-control-type piezo actuator driving circuit. The frequency-control-type piezo actuator driving circuit includes a piezo actuator that is driven by a constant amplitude of driving voltage pulse; a piezo driver that is connected to the piezo actuator so as to drive the piezo actuator; a frequency controller that is connected to the piezo driver so as to measure currents consumed when the piezo driver drives the piezo actuator, to detect a frequency corresponding to the maximum current among the measured currents, and to generate a frequency control signal corresponding to the detected frequency; and a frequency synthesizer that fixes a frequency of the piezo actuator in accordance with the frequency control signal of the frequency controller and generates the fixed frequency to the piezo driver.
摘要翻译：本发明涉及一种频率控制型压电致动器驱动电路。频率控制型压电致动器驱动电路包括由恒定振幅的驱动电压脉冲驱动的压电致动器; 压电驱动器，连接到压电致动器以驱动压电致动器; 频率控制器，其连接到所述压电驱动器，以测量当所述压电驱动器驱动所述压电致动器时消耗的电流，以检测与所测量的电流中的最大电流相对应的频率，并且产生与所检测的电流对应的频率控制信号频率; 以及频率合成器，其根据频率控制器的频率控制信号来固定压电致动器的频率，并将该固定频率产生到压电驱动器。

6. 发明申请

US20070030081A1 VOLTAGE CONTROLLED OSCILLATOR WITH DUTY CORRECTION 失效
标题翻译：具有负载校正的电压控制振荡器
公开(公告)号：US20070030081A1
公开(公告)日：2007-02-08
申请号：US11458577
申请日：2006-07-19
申请人： Sang Cheol Shin , Byoung Own Min , Chang Woo Ha , Jung Chul Gong
发明人： Sang Cheol Shin , Byoung Own Min , Chang Woo Ha , Jung Chul Gong
IPC分类号： H03B27/00
CPC分类号： H03K5/1565 , H03K3/0322 , H03K5/133 , H03K2005/00208 , H03L7/0995
摘要： There is provided a voltage controlled oscillator (VCO) stably generating a clock of a 50% duty from a simple circuit to have an excellent duty correction function in noise. The VCO 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.
摘要翻译：提供了一种压控振荡器（VCO），其稳定地从简单电路产生50％占空比的时钟，以在噪声中具有优异的占空比校正功能。 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。

7. 发明授权

US07834711B2 Variable-frequency oscillator 有权
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.

8. 发明授权

US07777527B2 Phase detection apparatus 失效
标题翻译：相位检测装置
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。

9. 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。

10. 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。

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