公开(公告)号：US08917025B2

公开(公告)日：2014-12-23

申请号：US13605101

申请日：2012-09-06

申请人： Deuk Hee Park ,  Yun Joong Lee ,  Sang Hyun Cha ,  Jae Shin Lee ,  Chang Seok Lee

发明人： Deuk Hee Park ,  Yun Joong Lee ,  Sang Hyun Cha ,  Jae Shin Lee ,  Chang Seok Lee

IPC分类号： H05B37/00 ,  H05B33/08

CPC分类号： H05B33/0845 ,  H05B33/0806 ,  H05B33/083

摘要： Disclosed herein is a light emitting diode (LED) driving apparatus including: at least one energy storages connected in series with each other; a plurality of LEDs each connected in parallel with each of the energy storages; and a switching control unit selectively connecting the at least one energy storages according to a level of applied voltage to charge/discharge voltage in/from the selected energy storages and control driving of the LEDs by the charging/discharging operation. Therefore, it is possible to easily drive the LEDs without a converter.

摘要翻译： 本文公开了一种发光二极管（LED）驱动装置，包括：至少一个彼此串联连接的能量存储器; 每个与每个能量存储器并联连接的多个LED; 以及开关控制单元，其根据所施加的电压的水平选择性地将所述至少一个能量存储器连接到所选择的能量存储器中的/从所选择的能量存储器中的充电/放电电压，并且通过所述充电/放电操作控制所述LED的驱动。 因此，可以容易地驱动没有转换器的LED。

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。

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。

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。

公开(公告)号：US20130076253A1

公开(公告)日：2013-03-28

申请号：US13605101

申请日：2012-09-06

申请人： Deuk Hee Park ,  Yun Joong Lee ,  Sang Hyun Cha ,  Jae Shin Lee ,  Chang Seok Lee

发明人： Deuk Hee Park ,  Yun Joong Lee ,  Sang Hyun Cha ,  Jae Shin Lee ,  Chang Seok Lee

IPC分类号： H05B37/00

CPC分类号： H05B33/0845 ,  H05B33/0806 ,  H05B33/083

摘要： Disclosed herein is a light emitting diode (LED) driving apparatus including: at least one energy storages connected in series with each other; a plurality of LEDs each connected in parallel with each of the energy storages; and a switching control unit selectively connecting the at least one energy storages according to a level of applied voltage to charge/discharge voltage in/from the selected energy storages and control driving of the LEDs by the charging/discharging operation. Therefore, it is possible to easily drive the LEDs without a converter.

摘要翻译： 本文公开了一种发光二极管（LED）驱动装置，包括：至少一个彼此串联连接的能量存储器; 每个与每个能量存储器并联连接的多个LED; 以及开关控制单元，其根据所施加的电压的水平选择性地将所述至少一个能量存储器连接到所选择的能量存储器中的/从所选择的能量存储器中的充电/放电电压，并且通过所述充电/放电操作控制所述LED的驱动。 因此，可以容易地驱动没有转换器的LED。

公开(公告)号：US20130033191A1

公开(公告)日：2013-02-07

申请号：US13278867

申请日：2011-10-21

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： H05B33/0824

摘要： There are provided a light emitting diode (LED) driving device allowing for an increase in an LED driving rate by discharging a charge stored in a capacitor during a certain period of time and a method thereof. The LED driving device includes: a driving unit detecting a current, as a voltage, the current flowing across an LED unit having at least one LED, controlling the current flowing across the LED unit according to a comparison result between the detected voltage and a reference voltage having a pre-set voltage level, and having a capacitor stabilizing an operation of the LED unit when the LED unit is driven; and a discharging unit discharging a charge stored in the capacitor during a pre-set discharge time when the LED unit is initially driven.

摘要翻译： 提供了一种发光二极管（LED）驱动装置，其允许通过在一定时间段内放电存储在电容器中的电荷来提高LED驱动速率及其方法。 LED驱动装置包括：驱动单元，检测流过具有至少一个LED的LED单元的电流作为电压，根据检测到的电压和参考值之间的比较结果来控制流过LED单元的电流 具有预设电压电平的电压，并且当LED单元被驱动时具有使LED单元的操作稳定的电容器; 以及放电单元，当LED单元被初始驱动时，在预设的放电时间期间放电存储在电容器中的电荷。

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。

公开(公告)号：US08239708B2

公开(公告)日：2012-08-07

申请号：US12455207

申请日：2009-05-29

申请人： Jin-kwon Park ,  Cheon-su Lee ,  Jae-shin Lee ,  Min-Joung Lee

发明人： Jin-kwon Park ,  Cheon-su Lee ,  Jae-shin Lee ,  Min-Joung Lee

IPC分类号： G06F11/26

CPC分类号： G06F11/261

摘要： A system on a chip (SoC) device verification system comprises: an SoC device model including one or more IPs and a memory controller; an external IP verification model receiving an instruction from the SoC device model and verifying operation of the one or more IPs included in the SoC device model; and a bus select model selecting one of the external IP verification model and an external device in response to a memory control signal received from the memory controller of the SoC device model.

摘要翻译： 芯片系统（SoC）设备验证系统包括：包括一个或多个IP的SoC设备模型和存储器控制器; 接收来自SoC设备模型的指令并验证包括在SoC设备模型中的一个或多个IP的操作的外部IP验证模型; 以及总线选择模型，响应于从所述SoC设备模型的存储器控​​制器接收的存储器控​​制信号，选择外部IP验证模型和外部设备之一。

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。

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。