TWI412001B - 用於驅動多個發光元件之電路及方法 - Google Patents

用於驅動多個發光元件之電路及方法 Download PDF

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Publication number
TWI412001B
TWI412001B TW094124118A TW94124118A TWI412001B TW I412001 B TWI412001 B TW I412001B TW 094124118 A TW094124118 A TW 094124118A TW 94124118 A TW94124118 A TW 94124118A TW I412001 B TWI412001 B TW I412001B
Authority
TW
Taiwan
Prior art keywords
voltage
circuit
light
emitting elements
highest
Prior art date
Application number
TW094124118A
Other languages
English (en)
Chinese (zh)
Other versions
TW200606795A (en
Inventor
Mark R Vitunic
Steven L Martin
Original Assignee
Linear Techn Inc
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 Linear Techn Inc filed Critical Linear Techn Inc
Publication of TW200606795A publication Critical patent/TW200606795A/zh
Application granted granted Critical
Publication of TWI412001B publication Critical patent/TWI412001B/zh

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Classifications

    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G5/00—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators
    • 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]

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Led Devices (AREA)
  • Circuit Arrangement For Electric Light Sources In General (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)
  • Control Of El Displays (AREA)
TW094124118A 2004-08-05 2005-07-15 用於驅動多個發光元件之電路及方法 TWI412001B (zh)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US10/911,703 US8558760B2 (en) 2004-08-05 2004-08-05 Circuitry and methodology for driving multiple light emitting devices

Publications (2)

Publication Number Publication Date
TW200606795A TW200606795A (en) 2006-02-16
TWI412001B true TWI412001B (zh) 2013-10-11

Family

ID=35756747

Family Applications (1)

Application Number Title Priority Date Filing Date
TW094124118A TWI412001B (zh) 2004-08-05 2005-07-15 用於驅動多個發光元件之電路及方法

Country Status (5)

Country Link
US (1) US8558760B2 (https=)
JP (1) JP5319048B2 (https=)
KR (1) KR101029359B1 (https=)
CN (1) CN1731496B (https=)
TW (1) TWI412001B (https=)

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US20080199471A1 (en) * 2002-03-01 2008-08-21 Bernett Matthew J Optimized cd40 antibodies and methods of using the same
US6825559B2 (en) 2003-01-02 2004-11-30 Cree, Inc. Group III nitride based flip-chip intergrated circuit and method for fabricating
JP4616332B2 (ja) * 2004-04-08 2011-01-19 エスティーマイクロエレクトロニクス エス．アール．エル． Ｏｌｅｄ受動マトリックスディスプレイのためのドライバ
TWI270219B (en) * 2005-03-08 2007-01-01 Addtek Corp Driving circuit and method of tuning a driving voltage of a light-emitting device through a feedback mechanism
JP2007295775A (ja) * 2006-04-27 2007-11-08 Rohm Co Ltd 電源装置、ｌｅｄ駆動装置、照明装置、表示装置
KR100737867B1 (ko) * 2006-06-02 2007-07-12 삼성전자주식회사 발광장치 및 발광장치의 제어방법
DE102007004877A1 (de) * 2007-01-31 2008-08-14 Infineon Technologies Austria Ag Schaltungsanordnung zur Ansteuerung von Leuchtdioden
JP2009008783A (ja) * 2007-06-27 2009-01-15 Seiko Epson Corp 発光装置および電子機器
US8111001B2 (en) * 2007-07-17 2012-02-07 Cree, Inc. LED with integrated constant current driver
CN101527989B (zh) * 2008-03-04 2013-06-12 原景科技股份有限公司 驱动发光二极管的电路与方法
DE102008030365A1 (de) * 2008-06-26 2009-08-20 Continental Automotive Gmbh Einrichtung zur Ansteuerung von in einem Array angeordneten Einzellichtquellen
TWI468080B (zh) * 2008-07-31 2015-01-01 Richtek Technology Corp LED drive device and method
US9071139B2 (en) 2008-08-19 2015-06-30 Advanced Analogic Technologies Incorporated High current switching converter for LED applications
TWI397034B (zh) * 2008-10-29 2013-05-21 Richtek Technology Corp 改善ｌｅｄ顯示系統效能的電流調節器及方法
CN102026438B (zh) * 2009-09-18 2014-04-16 立锜科技股份有限公司 发光元件控制电路与控制方法、及用于其中的集成电路
US9429965B2 (en) 2009-11-03 2016-08-30 Advanced Analogic Technologies Incorporated Multiple chip voltage feedback technique for driving LED's
CN101800030B (zh) * 2010-03-26 2012-06-20 青岛海信电器股份有限公司 一种led驱动芯片的级联方法、电路及具有该电路的电视机
CN101820707B (zh) * 2010-03-30 2012-09-05 上海艾为电子技术有限公司 发光元件的驱动装置
TWI402805B (zh) 2010-04-20 2013-07-21 Chunghwa Picture Tubes Ltd 應用於背光模組之電壓轉換器及其驅動方法
DE102010045389B4 (de) 2010-09-15 2012-12-06 Austriamicrosystems Ag Spannungsversorgungsanordnung und Verfahren zur Spannungsversorgung einer elektrischen Last
KR101041350B1 (ko) * 2010-11-08 2011-06-14 (주)상지기술 엘이디 소자 보호를 위한 엘이디램프 전원 보상장치
US8531164B2 (en) 2011-04-04 2013-09-10 Advanced Analogic Technologies Incorporated Operational transconductance amplifier feedback mechanism for fixed feedback voltage regulators
US9577610B2 (en) * 2011-04-05 2017-02-21 Advanced Analogic Technologies Incorporated Active LED voltage clamp
EP2597931B1 (de) * 2011-09-01 2015-05-27 Silicon Touch Technology, Inc. Treiberschaltung und zugehörige Fehlererkennungsschaltung und Verfahren hierfür
US8823279B2 (en) * 2011-10-27 2014-09-02 Phoseon Technology, Inc. Smart FET circuit
CN106058801B (zh) * 2016-06-20 2018-05-22 广州视源电子科技股份有限公司 一种压差保护电路
CN111034363B (zh) * 2017-08-09 2021-11-16 黑拉有限责任两合公司 用于操作电子灯布置的系统

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WO2003103061A1 (fr) * 2002-05-31 2003-12-11 Sony Corporation Dispositif de commande d'element emetteur de lumiere et appareil mobile l'utilisant
TW200401249A (en) * 2002-05-07 2004-01-16 Rohm Co Ltd Device for driving luminescent element and electronic apparatus with luminescent element
US20040105283A1 (en) * 2002-08-22 2004-06-03 Schie David Chalmers Optimal control of wide conversion ratio switching converters

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JP2001215913A (ja) 2000-02-04 2001-08-10 Toko Inc 点灯回路
US6166527A (en) * 2000-03-27 2000-12-26 Linear Technology Corporation Control circuit and method for maintaining high efficiency in a buck-boost switching regulator
US6404251B1 (en) * 2000-03-27 2002-06-11 Linear Technology Corporation Systems and methods for linearly varying a pulse-width modulation signal with a control signal
JP4244110B2 (ja) * 2001-05-28 2009-03-25 パイオニア株式会社 発光パネルの駆動装置及び発光パネルを備えた携帯端末装置
GB2381138B (en) * 2001-10-17 2005-06-29 Matsushita Comm Ind Uk Ltd Driver circuit for light emitting devices
JP2004085751A (ja) 2002-08-26 2004-03-18 Canon Electronics Inc 有機エレクトロルミネセンスディスプレイの駆動方法
DE20300976U1 (de) * 2003-01-17 2003-04-03 Brandau, Jonas, 10407 Berlin Niederspannungsdekorationsleuchte mit weißen SMD-LEDs
US6836157B2 (en) * 2003-05-09 2004-12-28 Semtech Corporation Method and apparatus for driving LEDs
JP4836402B2 (ja) * 2003-09-29 2011-12-14 東北パイオニア株式会社 自発光型表示装置
JP4308158B2 (ja) * 2004-03-30 2009-08-05 ローム株式会社 昇圧制御装置およびそれを用いた電子装置

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TW200401249A (en) * 2002-05-07 2004-01-16 Rohm Co Ltd Device for driving luminescent element and electronic apparatus with luminescent element
WO2003103061A1 (fr) * 2002-05-31 2003-12-11 Sony Corporation Dispositif de commande d'element emetteur de lumiere et appareil mobile l'utilisant
US20040105283A1 (en) * 2002-08-22 2004-06-03 Schie David Chalmers Optimal control of wide conversion ratio switching converters

Also Published As

Publication number Publication date
US20060028150A1 (en) 2006-02-09
JP5319048B2 (ja) 2013-10-16
US8558760B2 (en) 2013-10-15
CN1731496A (zh) 2006-02-08
JP2006048047A (ja) 2006-02-16
KR20060049291A (ko) 2006-05-18
TW200606795A (en) 2006-02-16
CN1731496B (zh) 2014-08-06
KR101029359B1 (ko) 2011-04-13

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MM4A Annulment or lapse of patent due to non-payment of fees