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公开(公告)号：US07646181B2
公开(公告)日：2010-01-12
申请号：US11928845
申请日：2007-10-30
申请人： Jeong In Cheon , Byoung Own Min , Chang Woo Ha , Deuk Hee Park
发明人： Jeong In Cheon , Byoung Own Min , Chang Woo Ha , Deuk Hee Park
CPC分类号： H02M3/3376 , H02M1/36 , H02M2001/0058 , Y02B70/1491
摘要： A control circuit of a DC-DC converter is provided. A mode selection section selects an Active Clamp Forward (ACF) or a Logic Link Control (LLC) mode. A soft start section generates a soft start signal in the ACF and LLC modes. A PWM comparison section compares a current detection signal with a feedback signal, a feedback reference signal and the soft start signal in the ACF mode, and generates a PWM signal based on a comparison result. A selection section selects the PWM signal of the PWM comparison section in the ACF mode. A clock generation section generates a clock signal having a fixed frequency in the ACF mode, and generates a clock signal having a frequency based on an operating current and the soft start signal in the LLC mode. A latch section maintains the PWM signal in response to the clock signal in the ACF mode and maintains the clock signal in the LLC mode.
摘要翻译： 提供DC-DC转换器的控制电路。 模式选择部分选择有源钳位前馈（ACF）或逻辑链路控制（LLC）模式。 软启动部分在ACF和LLC模式下产生软启动信号。 PWM比较部分将电流检测信号与ACF模式中的反馈信号，反馈参考信号和软启动信号进行比较，并且基于比较结果生成PWM信号。 选择部分在ACF模式下选择PWM比较部分的PWM信号。 时钟产生部分以ACF模式产生具有固定频率的时钟信号，并且在LLC模式下产生具有基于工作电流的频率和软启动信号的时钟信号。 锁存部分响应于ACF模式中的时钟信号而保持PWM信号，并将时钟信号保持在LLC模式。
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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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公开(公告)号：US08796942B2
公开(公告)日：2014-08-05
申请号：US13223933
申请日：2011-09-01
申请人： Yeun Joong Lee , Deuk Hee Park , Sang Hyun Cha , Jae Shin Lee , Change Seok Lee
发明人： Yeun Joong Lee , Deuk Hee Park , Sang Hyun Cha , Jae Shin Lee , Change Seok Lee
IPC分类号： H05B37/02
CPC分类号： H05B33/0809 , H05B33/0806 , Y02B20/348
摘要： There is provided an LED circuit including a light emitting unit including a plurality of light emitting diodes; and a switching unit switching to apply only positive voltage of an AC power supply to an anode of the light emitting unit. Through this, the LED circuit can reduce complexity of a driving circuit. Further, lifespan and efficiency of the LED circuit may be improved since an electrolytic capacitor and a bridge circuit are not used. Further, any one light emitting diode may be prevented from determining the lifespan of all of the light emitting diodes since all of the light emitting diodes are driven at all times, thereby improving the lifespan of the light emitting diode.
摘要翻译： 提供了一种LED电路，包括包括多个发光二极管的发光单元; 以及切换单元，其仅将交流电源的正电压施加到所述发光单元的阳极。 通过这种方式，LED电路可以降低驱动电路的复杂性。 此外，由于不使用电解电容器和桥式电路，因此可以提高LED电路的寿命和效率。 此外，由于所有发光二极管始终被驱动，因此可以防止任何一个发光二极管确定所有发光二极管的寿命，从而提高发光二极管的寿命。
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4.发明申请公开(公告)号：US20120319609A1
公开(公告)日：2012-12-20
申请号：US13288728
申请日：2011-11-03
申请人： Joong Ho CHOI , Seok Lee , Jae Hoon Kim , Jae Shin Lee , Yeun Joong Lee , Deuk Hee Park , Sang Hyun Cha , Chang Seok Lee , Jung Eui Park
发明人： Joong Ho CHOI , Seok Lee , Jae Hoon Kim , Jae Shin Lee , Yeun Joong Lee , Deuk Hee Park , Sang Hyun Cha , Chang Seok Lee , Jung Eui Park
IPC分类号： H05B37/02
CPC分类号： H05B33/0812 , H05B33/0848 , Y02B20/345
摘要： There is provided a light emitting diode (LED) driver having an offset voltage compensating function compensating for an offset voltage generated at the time of driving of an LED, the LED driver including: a driving unit detecting a current flowing in an LED unit having at least one LED, as a voltage and controlling the current flowing in the LED unit according to a comparison result between the detected voltage and a reference voltage having a preset voltage level; and an offset compensating unit integrating a voltage difference between the detected voltage and the reference voltage and adding or subtracting a compensating current according to an integration result to thereby compensate for an offset.
摘要翻译： 提供一种发光二极管（LED）驱动器，其具有补偿在驱动LED时产生的偏移电压的偏移电压补偿功能，所述LED驱动器包括：驱动单元，其检测在具有 至少一个LED作为电压，并且根据检测到的电压和具有预设电压电平的参考电压之间的比较结果来控制在LED单元中流动的电流; 以及偏移补偿单元，其将检测到的电压和参考电压之间的电压差积分，并根据积分结果来补偿或减去补偿电流，从而补偿偏移。
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公开(公告)号：US07348533B2
公开(公告)日：2008-03-25
申请号：US11458018
申请日：2006-07-17
申请人： Joo Yul Ko , Won Tae Choi , Deuk Hee Park , Shin Jae Kang
发明人： Joo Yul Ko , Won Tae Choi , Deuk Hee Park , Shin Jae Kang
IPC分类号： H01L27/00
CPC分类号： H04N5/3745 , H04N5/361
摘要： In a unit pixel of a CMOS image sensor which compensates for a dark current generated in a photo diode to enhance its driving range, the photo diode generates a charge in accordance with a received light amount. A drive transistor has a gate for receiving the charge in the photo diode to output as an electrical signal, and a drain to which a power voltage is applied. A saturation detector receives a gate voltage of the drive transistor and judges the drive transistor saturated if an output voltage is smaller than a preset reference voltage. A switch connects or disconnects between the power voltage and the gate of the drive transistor in response to the judgment of the saturation detector.
摘要翻译： 在补偿光电二极管中产生的暗电流以增强其驱动范围的CMOS图像传感器的单位像素中，光电二极管根据接收的光量产生电荷。 驱动晶体管具有用于接收光电二极管中的电荷作为电信号输出的栅极和施加电源电压的漏极。 饱和检测器接收驱动晶体管的栅极电压，并且如果输出电压小于预设参考电压，则判断驱动晶体管饱和。 响应于饱和检测器的判断，开关连接或断开驱动晶体管的电源电压和栅极之间的连接。
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公开(公告)号：US20070030370A1
公开(公告)日：2007-02-08
申请号：US11423666
申请日：2006-06-12
申请人： Shin Jae Kang , Won Tae Choi , Joo Yul Ko , Deuk Hee Park
发明人： Shin Jae Kang , Won Tae Choi , Joo Yul Ko , Deuk Hee Park
摘要： The present invention relates to an active pixel array of a CMOS image sensor. The active pixel array includes a pixel sensor array in which a pixel sensor which detects first and second light signals, of which the wavelengths are different from each other, among all wavelengths of light signals so as to generate current and voltage signals and a pixel sensor which detects a third light signal with a predetermined wavelength so as to generate a current or voltage signal are alternately arranged; and a color filter array that is formed on the pixel sensor array and in which a filter which transmits all wavelengths of light signals and a filter which transmits the third signal with a predetermined wavelength are alternately arranged.
摘要翻译： 本发明涉及CMOS图像传感器的有源像素阵列。 有源像素阵列包括像素传感器阵列，其中检测第一和第二光信号（其波长彼此不同）的像素传感器，在所有波长的光信号中产生电流和电压信号，以及像素传感器 检测出具有预定波长的第三光信号以产生电流或电压信号交替布置; 并且形成在像素传感器阵列上并且其中传输所有波长的光信号的滤波器和传输具有预定波长的第三信号的滤波器的滤色器阵列交替排列。
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公开(公告)号：US08890431B2
公开(公告)日：2014-11-18
申请号：US13220041
申请日：2011-08-29
申请人： Change Seok Lee , Yeun Joong Lee , Deuk Hee Park , Sang Hyun Cha , Jae Shin Lee
发明人： Change Seok Lee , Yeun Joong Lee , Deuk Hee Park , Sang Hyun Cha , Jae Shin Lee
CPC分类号： H05B33/0815
摘要： There are provided an LED driving apparatus and an LED driving method thereof. The LED driving apparatus includes: a light emitting unit including one or more LEDs, a rectifying unit rectifying an input signal to generate a first signal; a signal conversion unit inverting a waveform of a first signal to generate a second signal; and an operation unit arithmetically operating the first and second signals. A plurality of AC signals each having a different waveform are arithmetically operated to generate a signal having a small amount of a ripple component, and an LED is driven by the signal, thus preventing a lifespan of the LED from being shortened by omitting a smoothing electrolytic capacitor, one of main causes shortening the lifespan of an LED driving circuit.
摘要翻译： 提供了LED驱动装置及其LED驱动方法。 LED驱动装置包括：发光单元，包括一个或多个LED;整流单元对输入信号进行整流以产生第一信号; 信号转换单元，反转第一信号的波形以产生第二信号; 以及操作单元，算术地操作第一和第二信号。 每个具有不同波形的多个AC信号被算术运算以产生具有少量纹波分量的信号，并且由信号驱动LED，从而通过省略平滑电解而防止LED的寿命缩短 电容器，主要原因之一是缩短了LED驱动电路的使用寿命。
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公开(公告)号：US08779682B2
公开(公告)日：2014-07-15
申请号：US13290738
申请日：2011-11-07
申请人： Joong Ho Choi , Yeun Joong Lee , Deuk Hee Park , Sang Hyun Cha , Chang Seok Lee
发明人： Joong Ho Choi , Yeun Joong Lee , Deuk Hee Park , Sang Hyun Cha , Chang Seok Lee
IPC分类号： H05B37/02
CPC分类号： H05B33/0815 , H05B33/0845 , H05B33/0851
摘要： A fixture-compatible, dimmable illumination driving apparatus including: a rectifying unit rectifying a phase-controlled waveform of an alternating current (AC) power; a comparing unit comparing an output waveform of the rectifying unit with a first voltage according to a preset reference clock; a reference voltage generating unit generating a reference voltage corresponding to the number of high signals higher than the first voltage among outputs of the comparing unit during one cycle of the output waveform; and a pulse width modulation (PWM) signal generating unit generating a PWM signal from the reference voltage and a feedback voltage.
摘要翻译： 一种灯具兼容的可调光照明驱动装置，包括：整流单元，对交流（AC）功率的相位控制波形进行整流; 比较单元，根据预设的参考时钟将整流单元的输出波形与第一电压进行比较; 参考电压产生单元，在所述输出波形的一个周期期间，生成与所述比较单元的输出之间高于所述第一电压的高信号的数量相对应的参考电压; 以及脉冲宽度调制（PWM）信号生成单元，从所述基准电压和反馈电压生成PWM信号。
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公开(公告)号：US20130162154A1
公开(公告)日：2013-06-27
申请号：US13440687
申请日：2012-04-05
申请人： Yeun Joong LEE , Deuk Hee Park , Jae Shin Lee , Sang Hyun Cha , Chang Seok Lee
发明人： Yeun Joong LEE , Deuk Hee Park , Jae Shin Lee , Sang Hyun Cha , Chang Seok Lee
IPC分类号： H05B37/00
CPC分类号： H05B33/0824 , H05B33/0818 , H05B33/0851
摘要： There is provided a driving apparatus for a light emitting diode (LED) comparing a rectified power voltage level with an LED current to limit current applied to an LED, thereby reducing the amount of heat generated therein. The driving apparatus for an LED includes a detecting unit detecting a voltage level of rectified power; and a driving unit comparing a level of current flowing in an LED unit having at least one LED with detection results from the detecting unit, and limiting current applied to the LED unit to drive the LED unit according to comparison results.
摘要翻译： 提供了一种用于将整流的电压电平与LED电流进行比较的发光二极管（LED）的驱动装置，以限制施加到LED的电流，从而减少其中产生的热量。 用于LED的驱动装置包括：检测单元，用于检测整流电源的电压电平; 以及驱动单元，比较在具有至少一个LED的LED单元中流动的电流的水平与来自检测单元的检测结果，并且根据比较结果限制施加到LED单元以驱动LED单元。
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公开(公告)号：US07817198B2
公开(公告)日：2010-10-19
申请号：US11423666
申请日：2006-06-12
申请人： Shin Jae Kang , Won Tae Choi , Joo Yul Ko , Deuk Hee Park
发明人： Shin Jae Kang , Won Tae Choi , Joo Yul Ko , Deuk Hee Park
摘要： The present invention relates to an active pixel array of a CMOS image sensor. The active pixel array includes a pixel sensor array in which a pixel sensor which detects first and second light signals, of which the wavelengths are different from each other, among all wavelengths of light signals so as to generate current and voltage signals and a pixel sensor which detects a third light signal with a predetermined wavelength so as to generate a current or voltage signal are alternately arranged; and a color filter array that is formed on the pixel sensor array and in which a filter which transmits all wavelengths of light signals and a filter which transmits the third signal with a predetermined wavelength are alternately arranged.
摘要翻译： 本发明涉及CMOS图像传感器的有源像素阵列。 有源像素阵列包括像素传感器阵列，其中检测第一和第二光信号（其波长彼此不同）的像素传感器，在所有波长的光信号中产生电流和电压信号，以及像素传感器 检测出具有预定波长的第三光信号以产生电流或电压信号交替布置; 并且形成在像素传感器阵列上并且其中传输所有波长的光信号的滤波器和传输具有预定波长的第三信号的滤波器的滤色器阵列交替排列。
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