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21. 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。

22. 发明申请

US20070153559A1 DC-AC converter 失效
标题翻译： DC-AC转换器
公开(公告)号：US20070153559A1
公开(公告)日：2007-07-05
申请号：US11522590
申请日：2006-09-18
申请人： Seung Kon Kong , Tae Jin Kim , Nak Choon Choi
发明人： Seung Kon Kong , Tae Jin Kim , Nak Choon Choi
IPC分类号： H02M7/5387
CPC分类号： H02M7/538466 , H02M7/53862 , H02M7/53871 , H05B41/2828 , Y02B20/186
摘要： A DC-AC converter has two half-bridge circuits using an input feedback signal and an input clock signal together with time delay circuits, wherein one of the half-bridge circuits drives one pair of corresponding FETs and the other half-bridge circuit drives the other pair of corresponding FETs. The DC-AC converter includes: a Direct Current (DC) power source; a switching unit which includes a plurality of Field Effect Transistors (FETs) for changing paths of Direct Current (DC), so as to convert the DC to Alternating Current (AC); a transformer for transforming a voltage input from the switching unit; a load unit connected to the transformer; and a signal control unit for simultaneously parallel control of the FETs in the switching unit.
摘要翻译： DC-AC转换器具有使用输入反馈信号和输入时钟信号以及时间延迟电路的两个半桥电路，其中半桥电路之一驱动一对相应的FET，而另一个半桥电路驱动另一对相应的FET。 DC-AC转换器包括：直流（DC）电源; 开关单元，其包括用于改变直流（DC）路径的多个场效应晶体管（FET），以便将DC转换成交流电（AC）; 用于变换来自所述开关单元的电压输入的变压器; 连接到变压器的负载单元; 以及信号控制单元，用于同时并行地控制开关单元中的FET。

23. 发明申请

US20130249418A1 LIGHT EMITTING DIODE DRIVING APPARATUS 有权
标题翻译：发光二极管驱动装置
公开(公告)号：US20130249418A1
公开(公告)日：2013-09-26
申请号：US13494543
申请日：2012-06-12
申请人： Jung Eui PARK , Bo Hyun Hwang , Seo Hyung Kim , Jae Shin Lee , Dae Hoon Han , Seung Kon Kong
发明人： Jung Eui PARK , Bo Hyun Hwang , Seo Hyung Kim , Jae Shin Lee , Dae Hoon Han , Seung Kon Kong
IPC分类号： H05B37/02
CPC分类号： H05B33/0827
摘要： There is provided a light emitting diode driving apparatus capable of uniformly maintaining current balance between light emitting diode channels. The light emitting diode driving apparatus includes: a DC to DC converting unit converting the direct current power into settable driving power; a detecting unit detecting voltage drops generated in each of a plurality of light emitting diode channels each having a plurality of light emitting diodes; a converting unit converting an analog value into a digital value; and a driving unit differentially setting duty cycles of switching signals according to the digital values from the converting unit to drive the plurality of light emitting diode channels.
摘要翻译：提供了能够均匀地保持发光二极管通道之间的电流平衡的发光二极管驱动装置。发光二极管驱动装置包括：直流/直流转换单元，将直流电转换成可设定的驱动电力; 检测单元，检测在每个具有多个发光二极管的多个发光二极管通道中的每一个中产生的电压降; 转换单元，将模拟值转换为数字值; 以及驱动单元，根据来自转换单元的数字值差分地设置开关信号的占空比，以驱动多个发光二极管通道。

24. 发明授权

US08541953B2 LED driving device 失效
标题翻译： LED驱动装置
公开(公告)号：US08541953B2
公开(公告)日：2013-09-24
申请号：US13109535
申请日：2011-05-17
申请人： Bo Hyun Hwang , Jung Sun Kwon , Jung Hyun Kim , Seung Kon Kong , Jae Shin Lee , Joon Youp Sung
发明人： Bo Hyun Hwang , Jung Sun 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。

25. 发明授权

US08421365B2 Apparatus for driving light emitting device using pulse-width modulation 有权
标题翻译：用于使用脉冲宽度调制驱动发光装置的装置
公开(公告)号：US08421365B2
公开(公告)日：2013-04-16
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： H05B39/02
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。

26. 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。

27. 发明申请

US20120068619A1 DEVICE FOR CONTROLLING CURRENT OF LED 有权
标题翻译：用于控制LED电流的装置
公开(公告)号：US20120068619A1
公开(公告)日：2012-03-22
申请号：US13028618
申请日：2011-02-16
申请人： Joon Youp Sung , Jae Shin Lee , Seung Kon Kong , Jung Sun Kwon , Jung Hyun Kim , Bo Hyun Hwang
发明人： Joon Youp Sung , Jae Shin Lee , Seung Kon Kong , Jung Sun Kwon , Jung Hyun Kim , Bo Hyun Hwang
IPC分类号： H05B37/02
CPC分类号： H05B33/0815 , H05B33/0824 , Y02B20/347
摘要： Disclosed herein is a device for controlling current of an LED including a constant current generator, a current mirror, and a current amplifier, the device controlling current of an LED, comprising: a selector outputting an L signal or an H signal according to an input control signal; and a current changing unit formed by connecting at least one switching unit in parallel, the switching unit including a transistor and a switch connected to the transistor in series. The device for controlling current of an LED adjusts current supplied to the current amplifier using a SEL input without an effect of a noise, thereby making it possible to change the current of the LED without separately changing a resistor.
摘要翻译：本发明公开了一种用于控制包括恒流发电机，电流镜和电流放大器的LED的电流的装置，所述装置控制LED的电流，包括：选择器，根据输入端输出L信号或H信号控制信号; 以及通过并联连接至少一个开关单元形成的电流改变单元，所述开关单元包括晶体管和串联连接到所述晶体管的开关。用于控制LED的电流的装置使用SEL输入来调节提供给电流放大器的电流而不会产生噪声，从而可以在不分开改变电阻器的情况下改变LED的电流。

28. 发明申请

US20110050128A1 MODULE FOR CONTROLLING LIGHT EMITTING DIODE CURRENT FOR SELECTIVE FEEDBACK, APPARATUS AND METHOD FOR DRIVING LIGHT EMITTING DIODES USING THE SAME 有权
标题翻译：用于控制用于选择性反馈的发光二极管电流的模块，使用其的驱动发光二极管的装置和方法
公开(公告)号：US20110050128A1
公开(公告)日：2011-03-03
申请号：US12629552
申请日：2009-12-02
申请人： Seung Kon Kong , Bo Hyun Hwang , Jung Hyun Kim , Jung Sun Kwon
发明人： Seung Kon Kong , Bo Hyun Hwang , Jung Hyun Kim , Jung Sun Kwon
IPC分类号： H05B41/36
CPC分类号： H05B33/0812 , H05B33/0824 , Y02B20/345
摘要： The present invention provides a module for controlling an LED current for selective feedback, an apparatus and a method for driving LEDs using the same. The module for controlling the LED current, which is connected to a plurality of LED channels receiving driving powers supplied from at least one DC/DC converter and controls currents of the LED channels through a constant current, the LED current controlling module includes: an operation mode selector for selecting an operation mode according to an inputted enable signal level; a channel divider for dividing a plurality of LED channels into at least one group according to the selected operation mode; and a minimum voltage selector for selecting an LED channel with a minimum voltage, obtained by comparing voltages detected from each of lower ends of the LED channels included in each of one or more divided groups.
摘要翻译：本发明提供一种用于控制用于选择反馈的LED电流的模块，用于驱动使用该LED的LED的装置和方法。用于控制LED电流的模块，其连接到从至少一个DC / DC转换器提供的驱动功率的多个LED通道，并通过恒定电流来控制LED通道的电流，LED电流控制模块包括：模式选择器，用于根据输入的使能信号电平选择操作模式; 用于根据选择的操作模式将多个LED通道分成至少一个组的通道分配器; 以及用于选择具有最小电压的LED通道的最小电压选择器，其通过比较包括在一个或多个分组中的每一个中的LED通道的每个下端检测到的电压而获得。

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