公开(公告)号：US09055640B2

公开(公告)日：2015-06-09

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： H05B33/08

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：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：US20130033189A1

公开(公告)日：2013-02-07

申请号：US13418188

申请日：2012-03-12

申请人： Jung Eui Park ,  Jae Shin Lee ,  Jung Sun Kwon ,  Bo Hyun Hwang ,  Seung Kon Kong

发明人： Jung Eui Park ,  Jae Shin Lee ,  Jung Sun Kwon ,  Bo Hyun Hwang ,  Seung Kon Kong

IPC分类号： H05B37/02

CPC分类号： H05B33/0845

摘要： The present invention relates to a dimming control device, an LED driving device, and a dimming control method. In accordance with an embodiment of the present invention, a dimming control device including: a PWM signal generating unit for generating a PWM signal from a reference signal and an input voltage; a signal compensating unit for compensating the PWM signal output from the PWM signal generating unit using an internal clock signal; and a synchronization unit for synchronizing the compensated signal with an external clock signal to output a synchronized PWM control signal for dimming control is proposed. Further, an LED driving device and a dimming control method are proposed.

摘要翻译： 本发明涉及调光控制装置，LED驱动装置和调光控制方法。 根据本发明的实施例，一种调光控制装置，包括：PWM信号产生单元，用于从参考信号和输入电压产生PWM信号; 信号补偿单元，用于使用内部时钟信号来补偿从PWM信号生成单元输出的PWM信号; 提出了一种同步单元，用于使补偿信号与外部时钟信号同步，以输出用于调光控制的同步PWM控制信号。 此外，提出了LED驱动装置和调光控制方法。

公开(公告)号：US08653749B2

公开(公告)日：2014-02-18

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：US08525437B2

公开(公告)日：2013-09-03

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：US08476938B2

公开(公告)日：2013-07-02

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： H03K5/153

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，开路和地线的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。

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：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：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。