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1. 发明申请

US20120074859A1 DRIVER FOR LIGHT EMITTING DIODES 审中-公开
标题翻译：用于发光二极管的驱动器
公开(公告)号：US20120074859A1
公开(公告)日：2012-03-29
申请号：US13186110
申请日：2011-07-19
申请人： Seung Kon KONG , Jae Shin LEE , Bo Hyun HWANG , Jung Hyun KIM , Jung Eui PARK , Joon Youp SUNG
发明人： Seung Kon KONG , Jae Shin LEE , Bo Hyun HWANG , Jung Hyun KIM , Jung Eui PARK , Joon Youp SUNG
IPC分类号： H05B37/02
CPC分类号： H05B33/0827 , H05B33/0848
摘要： There is provided a driver for light emitting diodes capable of differently setting duties in which driving current flows depending on respective light emitting diode (LED) channels according to a voltage deviation between the LED channels in order to reduce heat generated due to the voltage deviation between the LED channels. The driver for LEDs includes: a detecting unit detecting a voltage drop generated in each of a plurality of LED channels receiving driving power having a preset voltage level; a converting unit converting detected analog values from the detecting unit into digital values; and a driving unit differently setting switching duties in which driving current flows in each of the plurality of LED channels according to the digital values from the converting unit to drive the plurality of LED channels.
摘要翻译：提供了一种用于发光二极管的驱动器，其能够根据LED通道之间的电压偏差，根据各个发光二极管（LED）通道驱动电流而不同地设定工作，以便减少由于LED通道之间的电压偏差而产生的热量 LED通道。用于LED的驱动器包括：检测单元，其检测在多个LED通道中的每一个中产生的电压降，其接收具有预设电压电平的驱动功率; 转换单元将来自检测单元的检测到的模拟值转换为数字值; 以及驱动单元，其根据来自转换单元的数字值，驱动电流在多个LED通道中的每一个流动，切换负荷不同，以驱动多个LED通道。

2. 发明申请

US20120068738A1 DEVICE AND METHOD FOR GENERATING THREE MODE SIGNAL 失效
标题翻译：用于产生三个模式信号的装置和方法
公开(公告)号：US20120068738A1
公开(公告)日：2012-03-22
申请号：US13027689
申请日：2011-02-15
申请人： Joon Youp SUNG , Jung Sun KWON , Jae Shin LEE , Seung Kon KONG , Jung Hyun KIM , Bo Hyun HWANG
发明人： Joon Youp SUNG , Jung Sun KWON , Jae Shin LEE , Seung Kon KONG , Jung Hyun KIM , Bo Hyun HWANG
IPC分类号： H03K5/22
CPC分类号： H05B33/0812 , H05B33/0896 , Y02B20/343 , Y02B20/345
摘要： The device for generating three mode signals includes: a voltage setting block including an input terminal receiving three input signals of driving voltage, open, and ground and setting three voltages according to the three input signals; and an output block including two output terminals and a second node B receiving the three voltages from the voltage setting block, and outputting three combined signals by comparing an input voltage with a reference voltage, whereby only a small number of resistors and amplifiers generates three mode signals to further reduce the chip size than the related art and the external power source is not required to solve the problems of the related art due to noise.
摘要翻译：用于产生三个模式信号的装置包括：电压设置块，包括接收驱动电压，开路和地线三个输入信号的输入端，并根据三个输入信号设置三个电压; 以及包括两个输出端子和从电压设定块接收三个电压的第二节点B的输出块，并且通过将输入电压与参考电压进行比较来输出三个组合信号，由此只有少数电阻器和放大器产生三个模式信号以进一步减小芯片尺寸，并且由于噪声而不需要外部电源来解决现有技术的问题。

3. 发明申请

US20120161662A1 DIGITAL PWM GENERATOR AND APPARATUS FOR DRIVING LIGHT EMITTING DEVICE 失效
标题翻译：数字PWM发生器和驱动发光装置的装置
公开(公告)号：US20120161662A1
公开(公告)日：2012-06-28
申请号：US13069558
申请日：2011-03-23
申请人： Jung Hyun KIM , Bo Hyun HWANG , Jung Sun KWON , Seung Kon KONG , Jae Shin LEE , Joon Youp SUNG
发明人： Jung Hyun KIM , Bo Hyun HWANG , Jung Sun KWON , Seung Kon KONG , Jae Shin LEE , Joon Youp SUNG
IPC分类号： H05B41/16 , H03K7/08
CPC分类号： H05B33/0842 , H05B33/0818 , H05B33/0824 , Y02B20/346
摘要： There is provided a digital PWM generator according to a first exemplary embodiment of the present invention including: an A/D converter dividing a predetermined reference voltage into a plurality of sections corresponding to a predetermined first set value, searching a section to which the magnitude of an input voltage Vin corresponds, among the plurality of sections, and converting a value corresponding to the searched section into a digital signal; a frequency selector providing a counting number by counting a predetermined high-speed counting clock during a one-cycle section of a predetermined reference clock; and a PWM signal generator converting the digital signal from the A/D converter into a ratio value corresponding to a ratio for the reference voltage and generating a PWM signal having a controlled duty ratio of the reference clock by using the ratio value and the counting number from the frequency selector.
摘要翻译：提供了根据本发明的第一示例性实施例的数字PWM发生器，包括：A / D转换器，将预定的参考电压分成对应于预定的第一设定值的多个部分，在多个部分中，输入电压Vin对应于将与搜索到的部分相对应的值转换为数字信号; 频率选择器，通过在预定参考时钟的一个周期段内对预定的高速计数时钟进行计数来提供计数数; 以及PWM信号发生器，其将来自A / D转换器的数字信号转换成与参考电压的比率相对应的比值，并通过使用比值和计数数来产生具有参考时钟的受控占空比的PWM信号从频率选择器。

4. 发明申请

US20120212146A1 LED DRIVING DEVICE 失效
标题翻译： LED驱动装置
公开(公告)号：US20120212146A1
公开(公告)日：2012-08-23
申请号：US13109535
申请日：2011-05-17
申请人： Bo Hyun HWANG , Jung Sung Kwon , Jung Hyun Kim , Seung Kon Kong , Jae Shin Lee , Joon Youp Sung
发明人： Bo Hyun HWANG , Jung Sung Kwon , Jung Hyun Kim , Seung Kon Kong , Jae Shin Lee , Joon Youp Sung
IPC分类号： H05B37/02
CPC分类号： H05B33/0827 , H05B33/0842
摘要： Disclosed herein is a light emitting diode (LED) driving device for driving a multi-channel LED element or an LED array for each channel, the LED driving device including: a constant current driver driving currents flowing in each channel; a first switching unit selectively feeding-back voltage levels of each channel; and a switching controller controlling the turn on/off of the first switching unit, wherein matching characteristics of currents flowing in each channel is improved and a size of an integrated circuit (IC) chip is also reduced as compared to a case according to the related art, thereby making it possible to reduce a production cost and satisfy the trend of miniaturization of the chip, while solving a performance deterioration problem due to degradation of the matching of the currents between the channels.
摘要翻译：本发明公开了一种用于驱动每个通道的多通道LED元件或LED阵列的发光二极管（LED）驱动装置，该LED驱动装置包括：驱动在每个通道中流动的电流的恒流驱动器; 第一开关单元选择性地反馈每个通道的电压电平; 以及控制第一开关单元的接通/断开的开关控制器，其中改善了在每个通道中流动的电流的匹配特性，并且与根据相关的情况相比，集成电路（IC）芯片的尺寸也降低从而可以降低生产成本并满足芯片小型化的趋势，同时解决由于通道之间的电流匹配劣化引起的性能劣化问题。

5. 发明申请

US20120212152A1 LED DRIVING DEVICE 有权
标题翻译： LED驱动装置
公开(公告)号：US20120212152A1
公开(公告)日：2012-08-23
申请号：US13108535
申请日：2011-05-16
申请人： Bo Hyun HWANG , Jung Sun Kwon , Seung Kon Kong , Jung Hyun Kim , Jae Shin Lee , Joon Youp Sung
发明人： Bo Hyun HWANG , Jung Sun Kwon , Seung Kon Kong , Jung Hyun Kim , Jae Shin Lee , Joon Youp Sung
IPC分类号： H05B37/02
CPC分类号： H05B33/0827 , H05B33/0818
摘要： Disclosed herein is a light emitting diode (LED) driving device for driving a multi-channel LED element or an LED array for each channel, the LED driving device including: a constant current driver driving currents flowing in each channel; and a minimum voltage selector receiving voltage levels of each channel and selecting a minimum voltage level to thereby feedback the selected minimum voltage level to the constant current driver, wherein matching characteristics of currents flowing in each channel is improved and a size of an integrated circuit (IC) chip is also reduced as compared to a case according to the related art, thereby making it possible to reduce a production cost and satisfy the trend of miniaturization of the chip, while solving a performance deterioration problem due to deterioration of the matching of the currents between the channels.
摘要翻译：本发明公开了一种用于驱动每个通道的多通道LED元件或LED阵列的发光二极管（LED）驱动装置，该LED驱动装置包括：驱动在每个通道中流动的电流的恒流驱动器; 以及最小电压选择器，其接收每个通道的电压电平并选择最小电压电平，从而将所选择的最小电压电平反馈给恒流驱动器，其中提高了在每个通道中流动的电流的匹配特性，并且集成电路 IC）芯片与现有技术的情况相比也降低，从而可以降低生产成本并满足芯片小型化的趋势，同时解决由于匹配引起的性能劣化问题通道之间的电流。

6. 发明申请

US20110156606A1 LIGHT EMITTING DIODE DRIVER 有权
标题翻译：发光二极管驱动器
公开(公告)号：US20110156606A1
公开(公告)日：2011-06-30
申请号：US12885903
申请日：2010-09-20
申请人： Bo Hyun HWANG , Jae Shin Lee , Jung Hyun Kim , Jung Sun Kwon , Seung Kon Kong
发明人： Bo Hyun HWANG , Jae Shin Lee , Jung Hyun Kim , Jung Sun Kwon , Seung Kon Kong
IPC分类号： H05B37/02
CPC分类号： H02M1/44 , H02M3/156 , H03K17/162 , H05B33/0809
摘要： There is provided a light emitting diode (LED) driver removing signal interference by varying a switching frequency within a preset range. The LED driver includes a power supply section switching input power and supplying driving power to at least one LED; a switching control section controlling the switching of the power supply section according to a clock signal being supplied; and a clock signal generation section supplying the clock signal having a preset variable frequency range to the switching control section.
摘要翻译：提供了通过在预设范围内改变开关频率来消除信号干扰的发光二极管（LED）驱动器。所述LED驱动器包括：电源部，切换输入电力，并向至少一个LED提供驱动电力; 切换控制部，根据供给的时钟信号来控制供电部的切换; 以及向切换控制部提供具有预设可变频率范围的时钟信号的时钟信号生成部。

7. 发明申请

US20110140627A1 APPARATUS FOR DRIVING LIGHT EMITTING DIVICE USING PULSE-WIDTH MODULATOIN 有权
标题翻译：使用脉冲宽度调制器驱动发光灯的装置
公开(公告)号：US20110140627A1
公开(公告)日：2011-06-16
申请号：US12770953
申请日：2010-04-30
申请人： Seung Kon KONG , Jae Shin LEE , Jung Hyun KIM , Jung Sun KWON , Bo Hyun HWANG
发明人： Seung Kon KONG , Jae Shin LEE , Jung Hyun KIM , Jung Sun KWON , Bo Hyun HWANG
IPC分类号： H05B37/02
CPC分类号： H05B33/0827 , H05B33/0818
摘要： An apparatus for driving a light emitting device (LED) is provided. The apparatus for driving the LED includes a first driving control element, a first current detection unit, a first effective value detection unit, a first reference signal generation unit, and a first comparison unit. The first driving control element controls a current flowing through a first LED channel, in response to a first pulse-width modulated control signal. The first current detection unit detects the current flowing through the first LED channel. The first effective value detection unit detects an effective value of the current detected by the first current detection unit. The first reference signal generation unit generates a preset reference signal having a sawtooth waveform. The first comparison unit compares the reference signal from the first reference signal generation unit with the effective value from the first effective value detection unit.
摘要翻译：提供了一种用于驱动发光器件（LED）的装置。用于驱动LED的装置包括第一驱动控制元件，第一电流检测单元，第一有效值检测单元，第一参考信号生成单元和第一比较单元。响应于第一脉冲宽度调制控制信号，第一驱动控制元件控制流过第一LED通道的电流。第一电流检测单元检测流过第一LED通道的电流。第一有效值检测单元检测由第一电流检测单元检测到的电流的有效值。第一参考信号产生单元产生具有锯齿波形的预设参考信号。第一比较单元将来自第一参考信号生成单元的参考信号与来自第一有效值检测单元的有效值进行比较。

8. 发明申请

US20100048150A1 APPARATUS AND METHOD FOR FEEDFORWARD-TYPE PHASE NOISE ELIMINATION IN PORTABLE TERMINAL 失效
标题翻译：便携式终端中进行相位噪声消除的装置和方法
公开(公告)号：US20100048150A1
公开(公告)日：2010-02-25
申请号：US12255136
申请日：2008-10-21
申请人： Bo Hyun HWANG
发明人： Bo Hyun HWANG
IPC分类号： H04B1/04
CPC分类号： H04B1/10 , H04B1/40 , H04N5/21 , H04N21/4126 , H04N21/42204
摘要： The present invention relates to an apparatus and method for feedforward-type phase noise elimination in a portable terminal, which detect and eliminate phase-reversed phase noise by subtracting a GSM transmission signal, passed through the power amplifier of a GSM transmission device, from a GSM transmission signal, extracted from an upstream stage of the power amplifier, so that phase noise signals attributable to high-power transmission signals.
摘要翻译：本发明涉及便携式终端中的前馈型相位噪声消除装置和方法，其通过从GSM传输装置的功率放大器中减去通过GSM传输装置的GSM发送信号来检测和消除相位相位相位噪声 GSM发送信号，从功率放大器的上游级提取，使得可产生大功率传输信号的相位噪声信号。

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