GB0702297D0 - Circuit and method for controlling an LED array - Google Patents
Circuit and method for controlling an LED arrayInfo
- Publication number
- GB0702297D0 GB0702297D0 GBGB0702297.3A GB0702297A GB0702297D0 GB 0702297 D0 GB0702297 D0 GB 0702297D0 GB 0702297 A GB0702297 A GB 0702297A GB 0702297 D0 GB0702297 D0 GB 0702297D0
- Authority
- GB
- United Kingdom
- Prior art keywords
- controlling
- circuit
- led array
- led
- array
- 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
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
-
- H05B33/08—
-
- H05B33/0836—
-
- 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
-
- 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
- H05B45/395—Linear regulators
-
- 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]
- H05B45/50—Circuit arrangements for operating light-emitting diodes [LED] responsive to malfunctions or undesirable behaviour of LEDs; responsive to LED life; Protective circuits
- H05B45/52—Circuit arrangements for operating light-emitting diodes [LED] responsive to malfunctions or undesirable behaviour of LEDs; responsive to LED life; Protective circuits in a parallel array of LEDs
-
- 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
- H05B45/32—Pulse-control circuits
- H05B45/325—Pulse-width modulation [PWM]
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/30—Semiconductor lamps, e.g. solid state lamps [SSL] light emitting diodes [LED] or organic LED [OLED]
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102006005521A DE102006005521B3 (en) | 2006-02-07 | 2006-02-07 | LED-array controlling method for e.g. motor vehicle`s tail lamp, involves increasing voltage until preset current flows through lines, such that lines are switched on and off by clocked control of switches to provide effective current |
Publications (3)
Publication Number | Publication Date |
---|---|
GB0702297D0 true GB0702297D0 (en) | 2007-03-14 |
GB2434929A GB2434929A (en) | 2007-08-08 |
GB2434929B GB2434929B (en) | 2008-05-07 |
Family
ID=37891418
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB0702297A Expired - Fee Related GB2434929B (en) | 2006-02-07 | 2007-02-07 | Circuit and method for controlling an LED array |
Country Status (2)
Country | Link |
---|---|
DE (1) | DE102006005521B3 (en) |
GB (1) | GB2434929B (en) |
Families Citing this family (24)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102006037342B4 (en) | 2006-08-08 | 2013-07-18 | Johnson Controls Automotive Electronics Gmbh | Circuit for a motor vehicle, in particular for controlling a lighting device |
WO2009012817A1 (en) * | 2007-07-25 | 2009-01-29 | Osram Gesellschaft mit beschränkter Haftung | Method and circuit configuration for two-stage control of semiconductor light sources |
KR20090018472A (en) | 2007-08-17 | 2009-02-20 | 삼성전자주식회사 | Backlight unit, display apparatus comprising the same and control method thereof |
WO2010015277A1 (en) * | 2008-08-04 | 2010-02-11 | Osram Gesellschaft mit beschränkter Haftung | Multi-led lighting device |
DE102008039526B4 (en) * | 2008-08-23 | 2016-07-14 | Hella Kgaa Hueck & Co. | Method for powering an LED array and circuit arrangement for carrying out the method and a lighting unit |
EP2197243A1 (en) * | 2008-12-05 | 2010-06-16 | Delphi Technologies, Inc. | Test method for light diodes |
DE102009018428A1 (en) * | 2009-04-22 | 2010-10-28 | Vishay Electronic Gmbh | Circuit for a light-emitting diode arrangement and light-emitting diode module |
KR101696749B1 (en) * | 2010-01-25 | 2017-01-17 | 삼성디스플레이 주식회사 | Backlight assembly and display apparatus having the same |
CN102771185B (en) * | 2010-03-01 | 2016-07-13 | 黑拉许克联合股份有限公司 | The method powered for LED array and the circuit arrangement performing the method |
DE102010049716A1 (en) | 2010-10-26 | 2012-04-26 | Automotive Lighting Reutlingen Gmbh | Composite of an on-board control unit and at least one light control device of a motor vehicle |
DE102010060857B4 (en) | 2010-11-29 | 2024-01-11 | HELLA GmbH & Co. KGaA | Circuit arrangement with a light-emitting diode field, control and/or regulating means for the light-emitting diode field and method for operating such a circuit arrangement |
DE102012222958A1 (en) * | 2012-12-12 | 2014-06-12 | Automotive Lighting Reutlingen Gmbh | Method and device for operating a lighting device of a motor vehicle |
DE102013220397A1 (en) * | 2013-10-10 | 2015-04-16 | Ruling Technologies Sdn. Bhd. | Method and control device for operating at least one light source |
DE102013111510A1 (en) * | 2013-10-18 | 2015-04-23 | Hella Kgaa Hueck & Co. | Circuit and method for driving LEDs |
DE102014202363A1 (en) | 2014-02-10 | 2015-08-13 | Tridonic Gmbh & Co Kg | Voltage converter for the operation of bulbs |
AT14315U1 (en) * | 2014-02-12 | 2015-08-15 | Tridonic Gmbh & Co Kg | Voltage converter for the operation of bulbs |
EP3185649B1 (en) | 2015-12-23 | 2020-04-01 | SMR Patents S.à.r.l. | Control circuit to control at least one lighting device in a vehicle |
US10257900B2 (en) | 2015-09-08 | 2019-04-09 | Signify Holding B.V. | Determining property of unchanged load device |
DE102016213192A1 (en) * | 2016-07-19 | 2018-01-25 | BSH Hausgeräte GmbH | Reduction of brightness differences in the operation of a lighting device of a household appliance with multiple bulbs |
EP3280228B1 (en) | 2016-08-01 | 2019-07-10 | OSRAM GmbH | Lighting system and related method of operating a lighting system |
DE102017125173B4 (en) * | 2017-10-26 | 2022-09-08 | Preh Gmbh | Method for checking the function of several light sources controlled by pulse width modulation |
US10440786B1 (en) | 2018-05-09 | 2019-10-08 | Infineon Technologies Ag | Control circuit and techniques for controlling a LED array |
DE102019103660A1 (en) * | 2019-02-13 | 2020-08-13 | Vossloh-Schwabe Deutschland Gmbh | Operating circuit for operating several loads |
DE102020106270A1 (en) | 2020-03-09 | 2021-09-09 | HELLA GmbH & Co. KGaA | Control and / or regulating means, circuit arrangement and method for controlling and / or monitoring light-emitting diodes in a light-emitting diode field |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6362578B1 (en) * | 1999-12-23 | 2002-03-26 | Stmicroelectronics, Inc. | LED driver circuit and method |
US6498440B2 (en) * | 2000-03-27 | 2002-12-24 | Gentex Corporation | Lamp assembly incorporating optical feedback |
CA2336497A1 (en) * | 2000-12-20 | 2002-06-20 | Daniel Chevalier | Lighting device |
DE10115388A1 (en) * | 2001-03-28 | 2002-10-10 | Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh | Control circuit for an LED array |
DE10137338A1 (en) * | 2001-07-31 | 2003-02-20 | Hella Kg Hueck & Co | Illumination device for motor vehicle lighting systems, has light control module with D.C. converter for converting on-board electrical system voltage to constant LED operating voltage for controlling LED arrangements |
US6798152B2 (en) * | 2002-08-21 | 2004-09-28 | Freescale Semiconductor, Inc. | Closed loop current control circuit and method thereof |
US6864641B2 (en) * | 2003-02-20 | 2005-03-08 | Visteon Global Technologies, Inc. | Method and apparatus for controlling light emitting diodes |
CN1816833A (en) * | 2003-06-30 | 2006-08-09 | 皇家飞利浦电子股份有限公司 | Single led driver for a traffic light |
EP1499165B1 (en) * | 2003-07-07 | 2007-09-12 | Rohm Co., Ltd. | Load driving device and portable apparatus utilizing such driving device |
DE102005012625B4 (en) * | 2005-03-18 | 2009-01-02 | Infineon Technologies Ag | Method and circuit arrangement for controlling LEDs |
-
2006
- 2006-02-07 DE DE102006005521A patent/DE102006005521B3/en active Active
-
2007
- 2007-02-07 GB GB0702297A patent/GB2434929B/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
DE102006005521B3 (en) | 2007-05-16 |
GB2434929A (en) | 2007-08-08 |
GB2434929B (en) | 2008-05-07 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
732E | Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977) |
Free format text: REGISTERED BETWEEN 20090129 AND 20090204 |
|
PCNP | Patent ceased through non-payment of renewal fee |
Effective date: 20110207 |