JP2007318983A5 - - Google Patents

Download PDF

Info

Publication number
JP2007318983A5
JP2007318983A5 JP2006311295A JP2006311295A JP2007318983A5 JP 2007318983 A5 JP2007318983 A5 JP 2007318983A5 JP 2006311295 A JP2006311295 A JP 2006311295A JP 2006311295 A JP2006311295 A JP 2006311295A JP 2007318983 A5 JP2007318983 A5 JP 2007318983A5
Authority
JP
Japan
Prior art keywords
circuit
load
switch
power supply
voltage
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP2006311295A
Other languages
English (en)
Japanese (ja)
Other versions
JP2007318983A (ja
JP4950631B2 (ja
Filing date
Publication date
Priority claimed from US11/440,606 external-priority patent/US20070273681A1/en
Application filed filed Critical
Publication of JP2007318983A publication Critical patent/JP2007318983A/ja
Publication of JP2007318983A5 publication Critical patent/JP2007318983A5/ja
Application granted granted Critical
Publication of JP4950631B2 publication Critical patent/JP4950631B2/ja
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

JP2006311295A 2006-05-24 2006-11-17 発光ダイオードアレイに電源を供給する方法および装置 Expired - Fee Related JP4950631B2 (ja)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US11/440,606 2006-05-24
US11/440,606 US20070273681A1 (en) 2006-05-24 2006-05-24 Method and apparatus to power light emitting diode arrays

Publications (3)

Publication Number Publication Date
JP2007318983A JP2007318983A (ja) 2007-12-06
JP2007318983A5 true JP2007318983A5 (enExample) 2010-01-07
JP4950631B2 JP4950631B2 (ja) 2012-06-13

Family

ID=38421529

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2006311295A Expired - Fee Related JP4950631B2 (ja) 2006-05-24 2006-11-17 発光ダイオードアレイに電源を供給する方法および装置

Country Status (5)

Country Link
US (1) US20070273681A1 (enExample)
EP (1) EP1860922B1 (enExample)
JP (1) JP4950631B2 (enExample)
CN (1) CN100531494C (enExample)
DE (1) DE602007004146D1 (enExample)

Families Citing this family (64)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI341510B (en) * 2006-01-26 2011-05-01 Au Optronics Corp Driver and driving method of semiconductor light emitting device array
US7777424B2 (en) * 2006-08-18 2010-08-17 Dialight Corporation Method and apparatus for controlling an input voltage to a light emitting diode
KR101215513B1 (ko) * 2006-10-17 2013-01-09 삼성디스플레이 주식회사 게이트 온 전압/발광 다이오드 구동전압 발생부와, 이를포함하는 직류/직류 컨버터 및 이를 갖는 액정표시장치와,액정표시장치의 에이징 테스트 장치
TW200820826A (en) * 2006-10-18 2008-05-01 Advanced Analog Technology Inc Dimming method for light emitting diodes
TWI354966B (en) * 2006-10-19 2011-12-21 Richtek Technology Corp Backlight control circuit
GB2443091B (en) * 2006-10-19 2012-02-15 Radiant Res Ltd Improvements in or relating to lighting control systems
TWI356366B (en) * 2006-10-19 2012-01-11 Richtek Technology Corp Backlight control circuit
US8508464B2 (en) * 2007-01-31 2013-08-13 Richtek Technology Corporation Backlight control circuit capable of distinguishing under current condition
WO2008110990A1 (en) * 2007-03-15 2008-09-18 Philips Intellectual Property & Standards Gmbh Driver circuit for loads such as led, oled or laser diodes
TWI364014B (en) * 2007-04-10 2012-05-11 Novatek Microelectronics Corp Method and device capable of controlling soft-start dymatically
US7531971B2 (en) * 2007-05-14 2009-05-12 Tpo Displays Corp. Backlight units and display devices
JP5091567B2 (ja) * 2007-07-06 2012-12-05 ローム株式会社 発光素子の駆動回路および電子機器
DE102007045777A1 (de) * 2007-09-25 2009-04-09 Continental Automotive Gmbh Skalierbare LED-Ansteuerung mit minimierter Verlustleistung
CN101222805B (zh) * 2007-12-20 2012-07-18 北京中星微电子有限公司 一种用于多串led分时调整的方法及使用该方法的驱动装置
US7550933B1 (en) * 2008-01-03 2009-06-23 System General Corp. Offline control circuit of LED driver to control the maximum voltage and the maximum current of LEDs
US7812552B2 (en) * 2008-02-05 2010-10-12 System General Corp. Controller of LED lighting to control the maximum voltage of LEDS and the maximum voltage across current sources
KR101473366B1 (ko) * 2008-03-05 2014-12-17 삼성디스플레이 주식회사 광원구동방법, 이를 수행하기 위한 광원 장치 및 이 광원장치를 포함하는 표시 장치
JP4655111B2 (ja) * 2008-05-20 2011-03-23 日本テキサス・インスツルメンツ株式会社 Led装置及びled駆動回路
TWI397044B (zh) * 2008-08-06 2013-05-21 Chunghwa Picture Tubes Ltd 背光模組控制系統及其控制方法
CN101646281A (zh) * 2008-08-08 2010-02-10 立锜科技股份有限公司 Led驱动装置及方法
EP2200403B1 (en) 2008-10-29 2010-08-25 Quan Mei Technology Co. Ltd Current-regulated light emitting device for vehicle use
CN101686586B (zh) * 2009-01-20 2012-09-12 深圳市众明半导体照明有限公司 一种应用于可控硅调光器的led调光装置
JP4918929B2 (ja) * 2009-01-30 2012-04-18 日本テキサス・インスツルメンツ株式会社 発光ダイオード制御装置
CN103179743A (zh) * 2009-03-04 2013-06-26 立锜科技股份有限公司 具有交直流直接转换控制功能的led驱动电路与相关方法和集成电路
CN101505568B (zh) * 2009-03-12 2012-10-03 深圳市众明半导体照明有限公司 一种适用于调光器的led调光装置
JP5359648B2 (ja) * 2009-07-27 2013-12-04 日本テキサス・インスツルメンツ株式会社 発光ダイオード駆動回路
KR101072057B1 (ko) * 2009-08-18 2011-10-11 엘지이노텍 주식회사 Led 구동 회로
KR101067142B1 (ko) 2009-08-31 2011-09-22 삼성전기주식회사 선택적 피드백용 발광 다이오드 전류 제어모듈, 이를 사용하는 발광 다이오드 구동장치 및 구동방법
CN101998729B (zh) * 2009-08-31 2014-02-26 天钰科技股份有限公司 驱动装置及驱动电压调节方法
JP5504764B2 (ja) * 2009-09-02 2014-05-28 株式会社リコー レーザダイオード駆動装置
US8519634B2 (en) * 2009-11-06 2013-08-27 Abl Ip Holding Llc Efficient power supply for solid state lighting system
KR101618876B1 (ko) * 2009-11-26 2016-05-10 엘지이노텍 주식회사 Led 구동을 위한 부스트 회로
US8493000B2 (en) * 2010-01-04 2013-07-23 Cooledge Lighting Inc. Method and system for driving light emitting elements
EP2364060A1 (de) 2010-03-01 2011-09-07 Hella KGaA Hueck & Co. Leuchteinrichtung zur Kennzeichnung und Markierung von Verkehrsflächen von Flughäfen
CN101835312B (zh) * 2010-05-10 2014-03-26 海洋王照明科技股份有限公司 一种led驱动控制电路
CN101917809B (zh) * 2010-08-24 2013-11-13 成都芯源系统有限公司 驱动多个发光元件的驱动器、驱动方法以及显示设备
TWI463911B (zh) * 2010-09-09 2014-12-01 Richtek Technology Corp 發光元件陣列驅動電路與用於其中之電流分配電路以及發光元件陣列電流分配方法
TW201216763A (en) 2010-10-06 2012-04-16 Novatek Microelectronics Corp Light-emitting diode driving device, light-emitting diode device method for driving the same
JP5482617B2 (ja) * 2010-10-22 2014-05-07 日本テキサス・インスツルメンツ株式会社 Led駆動電圧供給回路及びled装置
TW201218862A (en) 2010-10-26 2012-05-01 Mstar Semiconductor Inc LED driving system and driving method
CN102469665B (zh) * 2010-11-17 2014-07-16 晨星软件研发(深圳)有限公司 发光二极管驱动系统及驱动方法
US8854319B1 (en) * 2011-01-07 2014-10-07 Maxim Integrated Products, Inc. Method and apparatus for generating piezoelectric transducer excitation waveforms using a boost converter
KR101964442B1 (ko) * 2011-01-28 2019-04-01 서울반도체 주식회사 Led 구동회로 패키지
KR101712210B1 (ko) * 2011-02-18 2017-03-14 매그나칩 반도체 유한회사 Pwm 제어 회로 및 이를 이용한 led 구동회로
CN102740535A (zh) * 2011-04-12 2012-10-17 青岛海信电器股份有限公司 驱动电路以及液晶电视机
WO2012172420A1 (en) 2011-06-17 2012-12-20 Stevan Pokrajac Light emitting diode driver circuit
JP5788242B2 (ja) * 2011-06-27 2015-09-30 新電元工業株式会社 Led点灯装置及びこれを備えた表示装置
CN102255395B (zh) 2011-06-27 2014-11-05 华为终端有限公司 电子设备和单个电源向至少两个不同负载供电的方法
DE102011088966A1 (de) * 2011-12-19 2013-06-20 Tridonic Gmbh & Co. Kg Betriebsschaltung für Leuchtdioden und Verfahren zum Betrieb von Leuchtdioden
JP2013160823A (ja) * 2012-02-02 2013-08-19 Funai Electric Co Ltd 階調電圧発生回路および液晶表示装置
KR101357635B1 (ko) 2012-02-08 2014-02-04 (주)로그인디지탈 조광 제어를 위한 발광 다이오드 조명의 구동 회로
CN102646402B (zh) * 2012-04-20 2014-04-16 青岛海信电器股份有限公司 背光驱动电压控制装置、背光驱动电压控制方法和电视机
CN102711316B (zh) * 2012-04-26 2014-05-07 贵阳海信电子有限公司 Led背光源驱动装置及使用其的液晶显示装置
CN102708805B (zh) * 2012-04-26 2014-05-14 贵阳海信电子有限公司 多路led背光源驱动电路及使用其的液晶显示装置
CN103634976A (zh) * 2012-08-29 2014-03-12 深圳富泰宏精密工业有限公司 背光模块控制电路
CN104008733A (zh) * 2014-06-17 2014-08-27 深圳市华星光电技术有限公司 升压电路、led背光驱动电路以及液晶显示器
US10532419B2 (en) * 2015-10-29 2020-01-14 Lincoln Global, Inc. System and method of communicating in a welding system over welding power cables
US9814115B2 (en) 2015-12-25 2017-11-07 Panasonic Intellectual Property Management Co., Ltd. Illumination light communication apparatus and communication module
KR101822889B1 (ko) * 2016-06-14 2018-03-08 엘지전자 주식회사 리어 콤비네이션 램프의 입력 전압 안정화 회로, 리어 콤비네이션 램프 및 차량
CN106131996B (zh) * 2016-06-24 2017-12-26 成都芯源系统有限公司 一种发光二极管驱动系统及其驱动方法
IT201600132350A1 (it) * 2016-12-29 2018-06-29 Automotive Lighting Italia Spa Circuito di pilotaggio di sorgenti di illuminazione, in particolare per un fanale automobilistico
IT201600132337A1 (it) * 2016-12-29 2018-06-29 Automotive Lighting Italia Spa Circuito di pilotaggio di sorgenti di illuminazione, in particolare per un fanale automobilistico
CN109561541B (zh) * 2017-09-27 2021-12-28 朗德万斯公司 双重功能的灯驱动器
JP7189804B2 (ja) * 2019-02-26 2022-12-14 ローム株式会社 発光素子駆動装置、発光素子駆動システム及び発光システム

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01318551A (ja) * 1988-06-20 1989-12-25 Fujitsu Denso Ltd 多出力安定化電源装置
US5566064A (en) * 1995-05-26 1996-10-15 Apple Computer, Inc. High efficiency supply for electroluminescent panels
JP2001215913A (ja) * 2000-02-04 2001-08-10 Toko Inc 点灯回路
JP4177022B2 (ja) * 2002-05-07 2008-11-05 ローム株式会社 発光素子駆動装置、及び発光素子を備えた電子機器
US6690146B2 (en) * 2002-06-20 2004-02-10 Fairchild Semiconductor Corporation High efficiency LED driver
JP4342262B2 (ja) * 2003-10-03 2009-10-14 アルエイド株式会社 Led点灯制御装置、led点灯制御方法
US7633463B2 (en) * 2004-04-30 2009-12-15 Analog Devices, Inc. Method and IC driver for series connected R, G, B LEDs
US7375472B2 (en) * 2004-11-29 2008-05-20 02Micro International Limited Highly efficient driving of photoflash diodes using low and fixed voltage drop-out current sink
US8552963B2 (en) * 2004-11-30 2013-10-08 Rohm Co., Ltd. Switching regulator control circuit, current drive circuit, light emitting apparatus, and information terminal apparatus
JP2006185942A (ja) * 2004-12-24 2006-07-13 Toshiba Matsushita Display Technology Co Ltd 面光源制御装置
TWI341510B (en) * 2006-01-26 2011-05-01 Au Optronics Corp Driver and driving method of semiconductor light emitting device array
JP2007242886A (ja) * 2006-03-08 2007-09-20 Sony Corp 発光素子駆動回路及びそれを備えた携帯装置

Similar Documents

Publication Publication Date Title
JP2007318983A5 (enExample)
CN100531494C (zh) 对发光二极管阵列供电的方法及装置
TWI466590B (zh) 提供至少一發光二極體之電流用的降壓轉換器及方法
TWI352949B (en) Light source driving circuit
CN102474957B (zh) 发光二极管驱动电路
JP5795586B2 (ja) 発光ダイオード回路
RU2012106819A (ru) Схема делителя напряжения
TW201004471A (en) Current supply circuit and current control circuit for LED
JP2009212493A (ja) 発光ダイオード列の直列電力供給
JP6067697B2 (ja) Ledストリップを有する光源
JP2004194448A (ja) スイッチング定電流電源装置
JP2014525145A5 (enExample)
JP4187565B2 (ja) 照明装置
JP2013008547A (ja) Led駆動回路及びled照明装置
TW200703183A (en) Light emitting diode drive circuit
JP5528883B2 (ja) Led駆動回路
CN101207950A (zh) 发光二极管的驱动方法、系统以及冗余电路
TW201228453A (en) Full function LED driver for LCD backlighting
CN102842287A (zh) 发光二极管驱动系统及使用其的显示设备
JP2006271194A5 (enExample)
CN204377201U (zh) 一种led恒流驱动电路及led汽车照明装置
TW201041429A (en) Bi-direction constant current device
TWM591747U (zh) 降壓驅動電路
US9089022B2 (en) Light adjusting device with switching element
CN116437526B (zh) 宽电压自适应发光二极管恒流驱动电路