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    • 1. 发明公开
    • 발광 다이오드 구동 장치
    • 发光驱动装置
    • KR1020130107138A
    • 2013-10-01
    • KR1020120029002
    • 2012-03-21
    • 삼성전기주식회사
    • 박정의황보현김서형이재신한대훈공승곤
    • H05B37/02
    • H05B33/0827H05B33/0818H05B33/083Y02B20/347
    • PURPOSE: A light emitting diode (LED) driving device is provided to reduce heat generated by a voltage deviation between LED channels, thereby achieving uniform brightness. CONSTITUTION: An alternating current (AC)/direct current (DC) converting unit converts input AC power into DC power. A DC/DC converting unit converts the DC power into driving power. A detecting unit (230) detects voltage drops generated in plural LED channels. A converting unit (240) converts an analog value into a digital value. A driving unit (250) drives the plural LED channels. [Reference numerals] (110) AC/DC converting unit; (21N) N^th driver; (220) DC/DC converting unit; (231) First detector; (23N) N^th detector; (240) Converting unit; (251) First driver; (261) Driving controlling unit; (262) Converting controlling unit
    • 目的:提供发光二极管(LED)驱动装置,以减少由LED通道之间的电压偏差产生的热量,从而实现均匀的亮度。 构成:交流(AC)/直流(DC)转换单元将输入交流电转换为直流电源。 DC / DC转换单元将DC电力转换成驱动电力。 检测单元(230)检测在多个LED通道中产生的电压降。 A转换单元(240)将模拟值转换为数字值。 驱动单元(250)驱动多个LED通道。 (110)AC / DC转换单元; (21N)N ^司机; (220)DC / DC转换单元; (231)第一检测器; (23N)N ^检测器; (240)转换单元; (251)第一司机; (261)驾驶控制单元; (262)转换控制单元
    • 2. 发明公开
    • 발광 다이오드 구동 장치
    • 发光二极管驱动装置
    • KR1020130107137A
    • 2013-10-01
    • KR1020120029001
    • 2012-03-21
    • 삼성전기주식회사
    • 박정의공승곤성준엽이재신이진수권정선
    • H05B37/02
    • H05B33/0827H05B33/0851H05B33/0818H05B33/083Y02B20/347
    • PURPOSE: A light emitting diode (LED) driving device is provided to set different duties according to LED channels, thereby reducing heat generation. CONSTITUTION: An alternating current (AC)/direct current (DC) converting unit converts input AC power into DC drive power. A detecting unit (120) detects a voltage drop generated in each channel. A converting unit (130) converts an analog value into a digital value. A driving unit (140) differently sets the duty of a switching signal. The driving unit drives the channel of plural LEDs. [Reference numerals] (110) AC/DC converting unit; (121) First detector; (12N) N^th detector; (131) First converter; (13N) N^th converter; (14) First operator; (14N) N^th operator; (150) Compensation unit
    • 目的:提供发光二极管(LED)驱动装置,以根据LED通道设定不同的占空比,从而减少发热。 构成:交流(AC)/直流(DC)转换单元将输入交流电转换成直流驱动电源。 检测单元(120)检测在每个通道中产生的电压降。 A转换单元(130)将模拟值转换为数字值。 驱动单元(140)不同地设置开关信号的占空比。 驱动单元驱动多个LED的通道。 (110)AC / DC转换单元; (121)第一检测器; (12N)第N个检测器; (131)第一转换器; (13N)N ^转换器; (14)第一操作员; (14N)N ^运算符; (150)补偿单位
    • 4. 发明授权
    • 발광소자 구동장치
    • 灯光 -
    • KR100905844B1
    • 2009-07-02
    • KR1020070116777
    • 2007-11-15
    • 삼성전기주식회사
    • 신상철민병운공정철장유진공승곤
    • G09G3/00
    • H05B33/0818
    • 본 발명은 발광소자 구동장치에 관한 것으로, 구동전원을 공급하는 전원부; 상기 전원부에 연결된 애노드단과 캐소드단 사이에 직렬로 연결된 복수의 발광소자를 포함하는 발광소자 어레이; 상기 발광소자 어레이에 흐르는 전류를 제1 튜닝 전압에 따라 일정하게 유지시키는 정전류 회로부; 및 상기 발광소자 어레이의 캐소드단과 상기 정전류 회로부 사이에 연결되어, 제2 튜닝전압에 따라 상기 발광소자 어레이의 캐소드단에서 접지 사이에 걸리는 전체 전압중 일부 전압을 분담하여, 상기 정전류 회로부에 걸리는 전압을 기 설정된 전압 이하로 제한하는 전압 제한 회로부를 포함한다.
      발광소자, LED, 발광 다이오드, OLED(Organic Light Emitting Diodes), 유기 발광 다이오드
    • 发光元件驱动装置技术领域本发明涉及一种发光元件驱动装置, 一种发光器件阵列,包括串联连接在连接到电源单元的阳极端子和阴极端子之间的多个发光器件; 恒流电路单元,用于根据第一调谐电压将流过发光元件阵列的电流保持恒定; 并且控制电路连接在发光元件阵列的阴极端子和恒流电路部分之间,以根据第二调谐电压在发光元件阵列的阴极端子处共享接地两端的总电压的一部分, 并将电压限制在预定电压或更低。
    • 6. 发明公开
    • 발광 다이오드 구동 장치
    • 用于发光二极管的驱动器
    • KR1020120032806A
    • 2012-04-06
    • KR1020100094340
    • 2010-09-29
    • 삼성전기주식회사
    • 공승곤이재신황보현김정현박정의성준엽
    • H05B37/02
    • H05B33/0827H05B33/0848H05B33/0815H05B33/083Y02B20/347
    • PURPOSE: A device for driving a light emitting diode is provided to reduce heat from a switching device and an LED channel by establishing different duties for each LED channel according to a voltage deviation between LED channels. CONSTITUTION: A detection unit(110) detects a voltage drop at a plurality of LED channels. A converting unit(120) converts an analog value detected from the detection unit into a digital value. A driving unit(130) sets different switching duties according to the digital value from the converting unit. The driving unit includes a plurality of drivers which drive the LED channel. A switching unit(140) selects a detection value from the detection unit and transmits the detection value to the converting unit.
    • 目的:提供一种用于驱动发光二极管的装置,以根据LED通道之间的电压偏差,为每个LED通道建立不同的占空比,以减少开关装置和LED通道的热量。 检测单元(110)检测多个LED通道的电压降。 A转换单元(120)将从检测单元检测的模拟值转换为数字值。 驱动单元(130)根据来自转换单元的数字值设置不同的切换任务。 驱动单元包括驱动LED通道的多个驱动器。 切换单元(140)从检测单元中选择检测值,并将检测值发送到转换单元。
    • 10. 发明公开
    • 영상 신호와 동기화된 액정 표시 장치용 백라이트 유닛
    • 与液晶显示器的图像信号同步的背光单元
    • KR1020090021454A
    • 2009-03-04
    • KR1020070085978
    • 2007-08-27
    • 삼성전기주식회사
    • 신상철민병운공정철장유진공승곤
    • G02F1/133G09G3/36
    • G09G3/3406G09G2310/08G09G2320/0247
    • A backlight unit for a liquid crystal display synchronized with an image signal is provided to synchronize frequencies of a lamp driving signal and a lamp luminance signal with vertical and horizontal synchronization signals. An image signal generating unit(110) produces a horizontal synchronizing signal and a vertical synchronizing signal operating an image board of an LCD product. A synchronization unit(120) produces the first synchronization signal and second synchronization signal respectively synchronized with the horizontal synchronizing signal and the vertical synchronizing signal. A signal generating unit(130) comprises a lamp driving signal generator(131) and a lamp brightness signal generator(132). The lamp driving signal generator generates a lamp driving signal according to a frequency of the first synchronization signal. The lamp brightness signal generator generates a lamp brightness signal according to a frequency of the second synchronization signal.
    • 提供与图像信号同步的液晶显示器的背光单元,以使灯驱动信号和灯亮度信号的频率与垂直和水平同步信号同步。 图像信号生成单元(110)产生水平同步信号和操作LCD产品的图像板的垂直同步信号。 同步单元(120)产生分别与水平同步信号和垂直同步信号同步的第一同步信号和第二同步信号。 信号生成单元(130)包括灯驱动信号发生器(131)和灯亮度信号发生器(132)。 灯驱动信号发生器根据第一同步信号的频率产生灯驱动信号。 灯亮度信号发生器根据第二同步信号的频率产生灯亮度信号。