RS52884B - Led signal lamp with constant current operation - Google Patents
Led signal lamp with constant current operationInfo
- Publication number
- RS52884B RS52884B RS20130330A RSP20130330A RS52884B RS 52884 B RS52884 B RS 52884B RS 20130330 A RS20130330 A RS 20130330A RS P20130330 A RSP20130330 A RS P20130330A RS 52884 B RS52884 B RS 52884B
- Authority
- RS
- Serbia
- Prior art keywords
- led
- circuit
- voltage
- constant current
- comparator circuit
- Prior art date
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]
- H05B45/10—Controlling the intensity 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
- H05B47/00—Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
- H05B47/10—Controlling the light source
- H05B47/105—Controlling the light source in response to determined parameters
-
- 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
- H05B45/357—Driver circuits specially adapted for retrofit LED light sources
- H05B45/3574—Emulating the electrical or functional characteristics of incandescent lamps
- H05B45/3577—Emulating the dimming characteristics, brightness or colour temperature of incandescent lamps
-
- 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
- H05B47/10—Controlling the light source
- H05B47/17—Operational modes, e.g. switching from manual to automatic mode or prohibiting specific operations
Landscapes
- Circuit Arrangement For Electric Light Sources In General (AREA)
Abstract
Električno kolo (1) za LED signalnu lampu,koje obuhvata sredstva za prebacivanje između niskog nivoa sjajnosti, naročito nivoa sjajnosti za noćni režim rada i visokog nivoa sjajnosti, naročito nivoa sjajnosti za dnevni režim rada, LED signalne lampe u zavisnosti od naizmeničnog (AC) napona na naponskom ulazu (2) električnog kola (1),punotalasni ispravljač (3) za ispravljanje naizmeničnog (AC) napona koji se dovodi na naponski ulaz (2) električnog kola (1), tako obezbeđujući ispravljeni naizmenični napon na polovima (4a, 4b), inajmanje jedno kolo (5) LED bloka priključeno na polove (4a, 4b), i što kolo (5) LED bloka sadržiLED sklop (6) koji se sastoji od najmanje jedne svetleće (LED) diode,komparatorsko kolo (9) koje prebacuje naponski signal na izlaz (SO) komparatorskog kola (9) ako ispravljeni naizmenični napon pređe kritični nivo (Vkrit),naznačeno time, što električno kolo (1) sadržipromenljivi izvor (7) konstantne struje, sa prekidačkim ulazom (SIl) koji je priključen na izlaz signala (SO) komparatorskog kola (9), gde je promenljivi izvor (7) konstantne struje redno vezan sa LED sklopom (6),promenljiva otpornost (13), sa prekidačkim ulazom (SI2) koji je priključen na izlaz signala (SO) komparatorskog kola (9), gde su komparatorsko kolo (9), promenljiva otpornost (13) i promenljivi izvor (7) konstantne struje, zajedno sa LED sklopom (6) vezani paralelno na polovima (4a, 4b).Prijava sadrži još 14 patentnih zahteva.Electrical circuit (1) for LED signal lamp, comprising means for switching between low brightness level, especially brightness level for night mode and high brightness level, especially brightness level for day mode, LED signal lamp depending on alternating (AC) voltage at the voltage input (2) of the electrical circuit (1), a full-wave rectifier (3) for rectifying the alternating (AC) voltage supplied to the voltage input (2) of the electrical circuit (1), thus providing rectified alternating voltage at the poles (4a, 4b), at least one circuit (5) of the LED block connected to the poles (4a, 4b), and that the circuit (5) of the LED block contains an LED assembly (6) consisting of at least one light-emitting diode (LED), a comparator circuit (9) which switches the voltage signal to the output (SO) of the comparator circuit (9) if the rectified alternating voltage exceeds the critical level (Vkrit), characterized in that the electrical circuit (1) contains a variable constant current source (7), with a switching input (SIl) connected to the signal output la (SO) of the comparator circuit (9), where the variable source (7) of constant current is connected in series with the LED assembly (6), variable resistance (13), with a switching input (SI2) connected to the signal output (SO) of the comparator circuit (9), where the comparator circuit (9), variable resistance (13) and variable source (7) of constant current, together with the LED assembly (6) are connected in parallel at the poles (4a, 4b). The application contains 14 more patent claims .
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP10187788.4A EP2445318B1 (en) | 2010-10-15 | 2010-10-15 | LED signal lamp with constant current operation |
Publications (1)
Publication Number | Publication Date |
---|---|
RS52884B true RS52884B (en) | 2014-02-28 |
Family
ID=43243696
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
RS20130330A RS52884B (en) | 2010-10-15 | 2010-10-15 | Led signal lamp with constant current operation |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP2445318B1 (en) |
DK (1) | DK2445318T3 (en) |
ES (1) | ES2426033T3 (en) |
RS (1) | RS52884B (en) |
SI (1) | SI2445318T1 (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102013108689B3 (en) * | 2013-08-11 | 2014-11-13 | Pintsch Bamag Antriebs- Und Verkehrstechnik Gmbh | Circuit for controlling the power consumption of an LED unit and LED light with such a LED unit |
CN107734784B (en) * | 2017-09-27 | 2024-04-23 | 泉芯电子技术(深圳)有限公司 | Control method of LED constant current source system |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10164561B4 (en) * | 2001-12-14 | 2004-03-04 | Siemens Ag | Circuit arrangement for operating an LED signal |
AU2005222987B9 (en) * | 2004-03-15 | 2009-10-22 | Signify North America Corporation | Power control methods and apparatus |
DE602005004167T2 (en) * | 2005-11-18 | 2008-12-24 | Thales Rail Signalling Solutions Gmbh | Electrical circuit for LED signal lamps with a switching threshold for switching between daytime and nighttime operation |
CN101316467B (en) * | 2008-02-21 | 2013-09-25 | 上海铁路局科学技术研究所 | Duplexed LED point type light source colour lamp signal machine control circuit |
-
2010
- 2010-10-15 SI SI201030308T patent/SI2445318T1/en unknown
- 2010-10-15 DK DK10187788.4T patent/DK2445318T3/en active
- 2010-10-15 EP EP10187788.4A patent/EP2445318B1/en not_active Not-in-force
- 2010-10-15 ES ES10187788T patent/ES2426033T3/en active Active
- 2010-10-15 RS RS20130330A patent/RS52884B/en unknown
Also Published As
Publication number | Publication date |
---|---|
EP2445318A1 (en) | 2012-04-25 |
ES2426033T8 (en) | 2013-11-15 |
EP2445318B1 (en) | 2013-05-29 |
ES2426033T3 (en) | 2013-10-18 |
DK2445318T3 (en) | 2013-07-29 |
SI2445318T1 (en) | 2013-10-30 |
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