FR2967862B1 - Circuit et procede de commande de del - Google Patents

Circuit et procede de commande de del Download PDF

Info

Publication number
FR2967862B1
FR2967862B1 FR1159980A FR1159980A FR2967862B1 FR 2967862 B1 FR2967862 B1 FR 2967862B1 FR 1159980 A FR1159980 A FR 1159980A FR 1159980 A FR1159980 A FR 1159980A FR 2967862 B1 FR2967862 B1 FR 2967862B1
Authority
FR
France
Prior art keywords
control circuit
led control
led
circuit
control
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
FR1159980A
Other languages
English (en)
Other versions
FR2967862A1 (fr
Inventor
Wim Piet Van de Maele
Zoran Rankovic
Luc Vander Voorde
Jefferson W. Hall
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Semiconductor Components Industries LLC
Original Assignee
Semiconductor Components Industries LLC
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 Semiconductor Components Industries LLC filed Critical Semiconductor Components Industries LLC
Publication of FR2967862A1 publication Critical patent/FR2967862A1/fr
Application granted granted Critical
Publication of FR2967862B1 publication Critical patent/FR2967862B1/fr
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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
FR1159980A 2010-11-19 2011-11-04 Circuit et procede de commande de del Expired - Fee Related FR2967862B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US12/950,935 US9420653B2 (en) 2010-11-19 2010-11-19 LED driver circuit and method
US12950935 2010-11-19

Publications (2)

Publication Number Publication Date
FR2967862A1 FR2967862A1 (fr) 2012-05-25
FR2967862B1 true FR2967862B1 (fr) 2018-04-20

Family

ID=46021505

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1159980A Expired - Fee Related FR2967862B1 (fr) 2010-11-19 2011-11-04 Circuit et procede de commande de del

Country Status (4)

Country Link
US (1) US9420653B2 (fr)
DE (1) DE102011086580A1 (fr)
FR (1) FR2967862B1 (fr)
TW (1) TWI555432B (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8581519B2 (en) * 2011-08-25 2013-11-12 Hong Kong Applied Science & Technology Research Institute Co., Ltd. Current-switching LED driver using DAC to ramp bypass currents to accelerate switching speed and reduce ripple
US9348347B2 (en) * 2013-04-18 2016-05-24 Linear Technology Corporation Voltage generator with current source compensated for an error current operable over a wide voltage range
US10684555B2 (en) * 2018-03-22 2020-06-16 Applied Materials, Inc. Spatial light modulator with variable intensity diodes
US11622428B1 (en) * 2022-05-19 2023-04-04 Pixart Imaging Inc. Constant current LED driver, current control circuit and programmable current source

Family Cites Families (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS556687A (en) 1978-06-29 1980-01-18 Handotai Kenkyu Shinkokai Traffic use display
US5184114A (en) 1982-11-04 1993-02-02 Integrated Systems Engineering, Inc. Solid state color display system and light emitting diode pixels therefor
US4845481A (en) 1986-01-08 1989-07-04 Karel Havel Continuously variable color display device
JP2578455Y2 (ja) 1992-06-15 1998-08-13 松下電工株式会社 色温度可変照明装置
AU6034394A (en) 1993-02-11 1994-08-29 Louis A. Phares Controlled lighting system
US5966205A (en) 1997-07-01 1999-10-12 Lj Laboratories, Llc Method and apparatus for detecting and preventing counterfeiting
US6806659B1 (en) 1997-08-26 2004-10-19 Color Kinetics, Incorporated Multicolored LED lighting method and apparatus
US6016038A (en) 1997-08-26 2000-01-18 Color Kinetics, Inc. Multicolored LED lighting method and apparatus
US6285139B1 (en) 1999-12-23 2001-09-04 Gelcore, Llc Non-linear light-emitting load current control
US6636003B2 (en) * 2000-09-06 2003-10-21 Spectrum Kinetics Apparatus and method for adjusting the color temperature of white semiconduct or light emitters
US7615939B2 (en) * 2003-03-17 2009-11-10 C&D Zodiac, Inc. Spectrally calibratable multi-element RGB LED light source
US6989807B2 (en) 2003-05-19 2006-01-24 Add Microtech Corp. LED driving device
US7276861B1 (en) * 2004-09-21 2007-10-02 Exclara, Inc. System and method for driving LED
JP4833651B2 (ja) * 2005-12-08 2011-12-07 ローム株式会社 レギュレータ回路およびそれを搭載した自動車
US7723926B2 (en) * 2006-05-15 2010-05-25 Supertex, Inc. Shunting type PWM dimming circuit for individually controlling brightness of series connected LEDS operated at constant current and method therefor
DE102006037342B4 (de) * 2006-08-08 2013-07-18 Johnson Controls Automotive Electronics Gmbh Schaltung für ein Kraftfahrzeug, insbesondere zur Ansteuerung einer Beleuchtungseinrichtung
JP3965419B1 (ja) * 2006-08-23 2007-08-29 株式会社モモ・アライアンス 照明装置
CN101779522B (zh) * 2007-07-23 2014-11-19 Nxp股份有限公司 具有旁路驱动的led装置
US7528555B2 (en) * 2007-08-01 2009-05-05 Micrel, Inc. LED controller IC using only one pin to dim and set a maximum LED current
DE102007038892A1 (de) * 2007-08-17 2009-04-09 Texas Instruments Deutschland Gmbh Hochgeschwindigkeits-LED-Treiber
US7622871B2 (en) * 2007-10-01 2009-11-24 Micrel, Incorporated Light emitting diode driver circuit with shunt switch
US20110163693A1 (en) * 2008-07-07 2011-07-07 Osram Gesellschaft Mit Beschraenkter Haftung Circuit arrangement and method for operating at least one led
US8278830B2 (en) * 2008-07-15 2012-10-02 Intersil Americas Inc. Dynamic headroom control for LCD driver
US9713211B2 (en) * 2009-09-24 2017-07-18 Cree, Inc. Solid state lighting apparatus with controllable bypass circuits and methods of operation thereof

Also Published As

Publication number Publication date
DE102011086580A1 (de) 2012-05-24
TWI555432B (zh) 2016-10-21
US20120126719A1 (en) 2012-05-24
US9420653B2 (en) 2016-08-16
FR2967862A1 (fr) 2012-05-25
TW201244531A (en) 2012-11-01

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