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：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。

公开(公告)号：US20130249424A1

公开(公告)日：2013-09-26

申请号：US13494497

申请日：2012-06-12

申请人： Jung Eui PARK ,  Seung Kon Kong ,  Joon Youp Sung ,  Jae Shin Lee ,  Jin Soo Lee ,  Jung Sun Kwon

发明人： Jung Eui PARK ,  Seung Kon Kong ,  Joon Youp Sung ,  Jae Shin Lee ,  Jin Soo Lee ,  Jung Sun Kwon

IPC分类号： H05B37/02

CPC分类号： H05B33/0827 ,  H05B33/0851

摘要： There is provided a light emitting diode driving apparatus capable of uniformly controlling current balance between light emitting diode channels. The light emitting diode driving apparatus includes: an AC to DC converting unit converting input AC power into a preset DC driving power; a detecting unit detecting voltage drops generated in a plurality of respective light emitting diode channels each having a plurality of light emitting diodes performing a light emitting operation by receiving the DC driving power; a converting unit converting analog values detected from the detecting unit into digital values; and a driving unit differentially setting switching signal duty cycles in which a driving current is allowed to flow in the plurality of respective light emitting diode channels according to the digital values from the converting unit to drive the plurality of light emitting diode channels.

摘要翻译： 提供了能够均匀地控制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：将输入AC电力转换为预设的DC驱动电力的AC至DC转换单元; 检测单元，检测多个各自的发光二极管通道中产生的电压降，每个发光二极管通道具有通过接收直流驱动功率而执行发光操作的多个发光二极管; 转换单元，将从检测单元检测的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，差分地设置允许驱动电流在多个相应的发光二极管通道中流动的开关信号占空比，以驱动多个发光二极管通道。