RS52884B - Led signal lamp with constant current operation - Google Patents

Led signal lamp with constant current operation

Info

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
Application number
RS20130330A
Other languages
Serbian (sr)
Inventor
Kassen Oldewurtel
Original Assignee
Thales Deutschland Gmbh
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 Thales Deutschland Gmbh filed Critical Thales Deutschland Gmbh
Publication of RS52884B publication Critical patent/RS52884B/en

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 .

RS20130330A 2010-10-15 2010-10-15 Led signal lamp with constant current operation RS52884B (en)

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)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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

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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