JP4950631B2 - 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 - Google Patents

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 Download PDF

Info

Publication number
JP4950631B2
JP4950631B2 JP2006311295A JP2006311295A JP4950631B2 JP 4950631 B2 JP4950631 B2 JP 4950631B2 JP 2006311295 A JP2006311295 A JP 2006311295A JP 2006311295 A JP2006311295 A JP 2006311295A JP 4950631 B2 JP4950631 B2 JP 4950631B2
Authority
JP
Japan
Prior art keywords
circuit
load
voltage
power supply
feedback
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.)
Expired - Fee Related
Application number
JP2006311295A
Other languages
English (en)
Japanese (ja)
Other versions
JP2007318983A5 (enExample
JP2007318983A (ja
Inventor
ロバート・ジェイ・メイイェル
Original Assignee
パワー・インテグレーションズ・インコーポレーテッド
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by パワー・インテグレーションズ・インコーポレーテッド filed Critical パワー・インテグレーションズ・インコーポレーテッド
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

Images

Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
    • H05B45/40—Details of LED load circuits
    • H05B45/44—Details of LED load circuits with an active control inside an LED matrix
    • H05B45/46—Details of LED load circuits with an active control inside an LED matrix having LEDs disposed in parallel lines
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
    • H05B45/30—Driver circuits
    • H05B45/37—Converter circuits
    • H05B45/3725—Switched mode power supply [SMPS]
    • H05B45/38—Switched mode power supply [SMPS] using boost topology
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
    • H05B45/30—Driver circuits
    • H05B45/37—Converter circuits
    • H05B45/3725—Switched mode power supply [SMPS]
    • H05B45/385—Switched mode power supply [SMPS] using flyback topology
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
    • H05B45/30—Driver circuits
    • H05B45/37—Converter circuits
    • H05B45/3725—Switched mode power supply [SMPS]

Landscapes

  • Dc-Dc Converters (AREA)
  • Circuit Arrangement For Electric Light Sources In General (AREA)
  • Led Devices (AREA)
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 US20070273681A1 (en) 2006-05-24 2006-05-24 Method and apparatus to power light emitting diode arrays
US11/440,606 2006-05-24

Publications (3)

Publication Number Publication Date
JP2007318983A JP2007318983A (ja) 2007-12-06
JP2007318983A5 JP2007318983A5 (enExample) 2010-01-07
JP4950631B2 true 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
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
TWI354966B (en) * 2006-10-19 2011-12-21 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
US7978743B2 (en) 2007-03-15 2011-07-12 Koninklijke Philips Electronics N.V. 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
CN104735872B (zh) * 2011-01-28 2017-05-31 首尔半导体株式会社 Led驱动电路封装
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
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
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
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
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
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
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
WO2006059437A1 (ja) * 2004-11-30 2006-06-08 Rohm Co., Ltd スイッチングレギュレータの制御回路、電流駆動回路、発光装置および情報端末装置
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

Also Published As

Publication number Publication date
DE602007004146D1 (de) 2010-02-25
EP1860922B1 (en) 2010-01-06
US20070273681A1 (en) 2007-11-29
EP1860922A1 (en) 2007-11-28
JP2007318983A (ja) 2007-12-06
CN101080119A (zh) 2007-11-28
CN100531494C (zh) 2009-08-19

Similar Documents

Publication Publication Date Title
JP4950631B2 (ja) 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
US10103625B2 (en) Load driving device, and lighting apparatus and liquid crystal display device using the same
JP3755770B2 (ja) 負荷駆動装置及び携帯機器
KR100771780B1 (ko) 과전압 보호 및 듀티 제어 기능을 갖는 ｌｅｄ 구동장치
CN1578095B (zh) 负载驱动装置及其携带式机器
KR100867551B1 (ko) Ｌｅｄ 어레이 구동 장치
KR100587022B1 (ko) 디밍 회로를 갖는 ｌｅｄ 구동회로
US8373346B2 (en) Solid state lighting system and a driver integrated circuit for driving light emitting semiconductor devices
JP5591581B2 (ja) 発光装置、電子機器、発光ダイオードストリングの駆動方法
KR101028860B1 (ko) 병렬 발광다이오드 구동 회로
US11487310B2 (en) Load driving device, and lighting apparatus and liquid crystal display device using the same
JP4983735B2 (ja) 電源制御用半導体集積回路
KR20170124948A (ko) Led 구동기용 아날로그 및 디지털 조광 제어
CN101331796A (zh) 发光二级管照明设备
KR20110120623A (ko) 전기적부하의 구동회로 및 그 구동방법
US8884545B2 (en) LED driving system and driving method thereof
US20100052572A1 (en) Light emitting element driving apparatus
US20160119988A1 (en) Dual control led driver
HK1099399A1 (zh) 视讯发光二极管给lcd屏的控制
HK1099399B (en) Control on lcd display by visual light emitting diodes

Legal Events

Date Code Title Description
RD03 Notification of appointment of power of attorney

Free format text: JAPANESE INTERMEDIATE CODE: A7423

Effective date: 20090306

A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A821

Effective date: 20090501

RD04 Notification of resignation of power of attorney

Free format text: JAPANESE INTERMEDIATE CODE: A7424

Effective date: 20090501

A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20091113

A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20091113

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20111122

A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20111208

TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20120306

A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20120309

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20150316

Year of fee payment: 3

R150 Certificate of patent or registration of utility model

Free format text: JAPANESE INTERMEDIATE CODE: R150

LAPS Cancellation because of no payment of annual fees