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11. 发明授权

US07800566B2 Drive device of color LED backlight 有权
标题翻译：彩色LED背光驱动装置
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。

12. 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。

13. 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。

14. 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。

15. 发明申请

US20070200513A1 DRIVE DEVICE OF COLOR LED BACKLIGHT 审中-公开
标题翻译：彩色LED背光驱动装置
公开(公告)号：US20070200513A1
公开(公告)日：2007-08-30
申请号：US11566565
申请日：2006-12-04
申请人： Chang Woo Ha , Byoung Own Min , Jung Chul Gong
发明人： Chang Woo Ha , Byoung Own Min , Jung Chul Gong
IPC分类号： H05B39/04
CPC分类号： H05B33/0854 , H05B33/0827 , H05B33/0851
摘要： Disclosed herein is a drive device of a color light emitting diode (LED) backlight, which is capable of uniformly controlling an optical output of an LED regardless of a variation in an ambient temperature and easily changing characteristic data (by referring to a lookup table).The drive device for driving the color LED backlight which includes a plurality of color LED arrays includes a voltage detecting unit for detecting a voltage applied to the color LED backlight, a temperature detecting unit for detecting a temperature of the color LED backlight, a control unit for controlling driving currents which respectively flow in the color LED arrays of the color LED backlight according to the temperature detected by the temperature detecting unit and the voltage detected by the voltage detecting unit, by referring to previously set driving current values, and a multi-channel current source for adjusting amounts of the driving currents which respectively flow in the color LED arrays of the color LED backlight, by the driving current control of the control unit.
摘要翻译：本文公开了一种彩色发光二极管（LED）背光源的驱动装置，其能够均匀地控制LED的光输出，而不管环境温度的变化和容易改变的特征数据（通过参考查找表）。用于驱动包括多个彩色LED阵列的彩色LED背光源的驱动装置包括用于检测施加到彩色LED背光的电压的电压检测单元，用于检测彩色LED背光的温度的温度检测单元，控制单元用于根据先前设定的驱动电流值来控制分别根据由温度检测单元检测的温度和由电压检测单元检测的电压在彩色LED背光源的彩色LED阵列中流动的驱动电流，通过控制单元的驱动电流控制来调节分别流过彩色LED背光的彩色LED阵列的驱动电流的量的通道电流源。

16. 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。

17. 发明授权

US08207877B2 Serial interface, apparatus including the same, and method of using the same 有权
标题翻译：串行接口，包括其的设备及其使用方法
公开(公告)号：US08207877B2
公开(公告)日：2012-06-26
申请号：US12765819
申请日：2010-04-22
申请人： Chang Woo Ha , Sung Hoon Bea , Sang Heum Yeon
发明人： Chang Woo Ha , Sung Hoon Bea , Sang Heum Yeon
IPC分类号： H03M5/08
CPC分类号： H03M1/504
摘要： An apparatus for transferring serial data (e.g., a serial interface using a single wire) generally includes a detector configured to detect a first level time period and a second level time period of an input signal, and a computing unit configured to compute a duty or duty cycle of the input signal and generate an output signal based on the duty or duty cycle.
摘要翻译：用于传送串行数据的装置（例如，使用单线的串行接口）通常包括被配置为检测输入信号的第一电平时间段和第二电平时间段的检测器，以及计算单元，被配置为计算占空比输入信号的占空比，并根据占空比或占空比生成输出信号。

18. 发明授权

US07209001B2 Offset compensation circuit for a monitoring photodiode 失效
标题翻译：用于监控光电二极管的偏移补偿电路
公开(公告)号：US07209001B2
公开(公告)日：2007-04-24
申请号：US11076467
申请日：2005-03-09
申请人： Chang Woo Ha , Kyoung Soo Kwon , Deuk Hee Park , Sang Cheol Shin
发明人： Chang Woo Ha , Kyoung Soo Kwon , Deuk Hee Park , Sang Cheol Shin
IPC分类号： H03F1/02
CPC分类号： G11B7/1263 , H03F1/34 , H03F3/08 , H03F3/45973 , H03F3/72
摘要： Disclosed is a circuit for compensating for an offset voltage of a monitoring photodiode. After the offset voltage is measured in a photodiode test, current source and offset resistors are added according to the measured resistances, thereby compensating for the offset voltage.
摘要翻译：公开了一种用于补偿监控光电二极管的偏移电压的电路。在光电二极管测试中测量偏移电压之后，根据测量的电阻添加电流源和失调电阻，从而补偿偏移电压。

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