GB2444387B - A method and driver circuit for regulating the forward current through a light-emission apparatus - Google Patents
A method and driver circuit for regulating the forward current through a light-emission apparatusInfo
- Publication number
- GB2444387B GB2444387B GB0723232.5A GB0723232A GB2444387B GB 2444387 B GB2444387 B GB 2444387B GB 0723232 A GB0723232 A GB 0723232A GB 2444387 B GB2444387 B GB 2444387B
- Authority
- GB
- United Kingdom
- Prior art keywords
- regulating
- light
- driver circuit
- forward current
- emission apparatus
- 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
Links
Classifications
-
- H05B33/0812—
-
- H05B33/086—
-
- H05B33/0881—
-
- H05B37/03—
-
- 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]
- H05B45/20—Controlling the colour of the light
-
- 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
-
- 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
- H05B47/00—Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
- H05B47/20—Responsive to malfunctions or to light source life; for protection
-
- 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]
- H05B45/50—Circuit arrangements for operating light-emitting diodes [LED] responsive to malfunctions or undesirable behaviour of LEDs; responsive to LED life; Protective circuits
- H05B45/54—Circuit arrangements for operating light-emitting diodes [LED] responsive to malfunctions or undesirable behaviour of LEDs; responsive to LED life; Protective circuits in a series array of LEDs
-
- 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 |
---|---|---|---|
DE102006056148.1A DE102006056148B4 (en) | 2006-11-28 | 2006-11-28 | Method for monitoring the operation of a traffic signal system and traffic control traffic signal system |
Publications (3)
Publication Number | Publication Date |
---|---|
GB0723232D0 GB0723232D0 (en) | 2008-01-09 |
GB2444387A GB2444387A (en) | 2008-06-04 |
GB2444387B true GB2444387B (en) | 2012-03-14 |
Family
ID=38962213
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB0723232.5A Expired - Fee Related GB2444387B (en) | 2006-11-28 | 2007-11-27 | A method and driver circuit for regulating the forward current through a light-emission apparatus |
Country Status (2)
Country | Link |
---|---|
DE (1) | DE102006056148B4 (en) |
GB (1) | GB2444387B (en) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8760072B2 (en) | 2009-01-27 | 2014-06-24 | Led Roadway Lighting Ltd. | Power supply for light emitting diode roadway lighting fixture |
CA2672584A1 (en) | 2009-07-17 | 2011-01-17 | Murray J. Burke | Compression apparatus and method |
CA2672659A1 (en) | 2009-07-17 | 2011-01-17 | Murray J. Burke | Process apparatus with output valve and operation thereof |
CA2672674A1 (en) | 2009-07-17 | 2011-01-17 | Murray J. Burke | Compression apparatus with variable speed screw and method |
US8946994B2 (en) | 2012-09-25 | 2015-02-03 | Lg Display Co., Ltd. | Organic light emitting display device and driving method thereof |
CN105546478A (en) * | 2016-01-29 | 2016-05-04 | 佛山市青松科技股份有限公司 | LED system having intelligent light supplementing function and used for message signs and traffic lights |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2224374A (en) * | 1988-08-24 | 1990-05-02 | Plessey Co Plc | Temperature control of light-emitting devices |
US6078148A (en) * | 1998-10-09 | 2000-06-20 | Relume Corporation | Transformer tap switching power supply for LED traffic signal |
US20030076051A1 (en) * | 2001-09-07 | 2003-04-24 | Bowman Scott A. | Light-emitting diode module for retrofit to flashlights using incandescent bulbs |
US20040201496A1 (en) * | 2001-08-16 | 2004-10-14 | Bernhard Hering | Illuminated sign for traffic control and method for functional monitoring of such a sign |
WO2007141254A1 (en) * | 2006-06-09 | 2007-12-13 | Osram Gesellschaft mit beschränkter Haftung | Circuit unit |
EP2036404A1 (en) * | 2006-06-26 | 2009-03-18 | Koninklijke Philips Electronics N.V. | Drive circuit for driving a load with constant current |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2975160B2 (en) * | 1991-05-27 | 1999-11-10 | 三菱化学株式会社 | Emission spectrum control system |
DE10013215B4 (en) * | 2000-03-17 | 2010-07-29 | Tridonicatco Gmbh & Co. Kg | Control circuit for light emitting diodes |
-
2006
- 2006-11-28 DE DE102006056148.1A patent/DE102006056148B4/en not_active Expired - Fee Related
-
2007
- 2007-11-27 GB GB0723232.5A patent/GB2444387B/en not_active Expired - Fee Related
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2224374A (en) * | 1988-08-24 | 1990-05-02 | Plessey Co Plc | Temperature control of light-emitting devices |
US6078148A (en) * | 1998-10-09 | 2000-06-20 | Relume Corporation | Transformer tap switching power supply for LED traffic signal |
US20040201496A1 (en) * | 2001-08-16 | 2004-10-14 | Bernhard Hering | Illuminated sign for traffic control and method for functional monitoring of such a sign |
US20030076051A1 (en) * | 2001-09-07 | 2003-04-24 | Bowman Scott A. | Light-emitting diode module for retrofit to flashlights using incandescent bulbs |
WO2007141254A1 (en) * | 2006-06-09 | 2007-12-13 | Osram Gesellschaft mit beschränkter Haftung | Circuit unit |
EP2027755A1 (en) * | 2006-06-09 | 2009-02-25 | Osram Gesellschaft mit Beschränkter Haftung | Circuit unit |
US20090128050A1 (en) * | 2006-06-09 | 2009-05-21 | Alois Biebl | Circuit Unit |
EP2036404A1 (en) * | 2006-06-26 | 2009-03-18 | Koninklijke Philips Electronics N.V. | Drive circuit for driving a load with constant current |
Also Published As
Publication number | Publication date |
---|---|
DE102006056148A1 (en) | 2008-06-05 |
GB2444387A (en) | 2008-06-04 |
DE102006056148B4 (en) | 2016-10-27 |
GB0723232D0 (en) | 2008-01-09 |
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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 20170209 AND 20170215 |
|
PCNP | Patent ceased through non-payment of renewal fee |
Effective date: 20181127 |