GB0419696D0 - Emulation circuit - Google Patents

Emulation circuit

Info

Publication number
GB0419696D0
GB0419696D0 GBGB0419696.0A GB0419696A GB0419696D0 GB 0419696 D0 GB0419696 D0 GB 0419696D0 GB 0419696 A GB0419696 A GB 0419696A GB 0419696 D0 GB0419696 D0 GB 0419696D0
Authority
GB
United Kingdom
Prior art keywords
emulation circuit
emulation
circuit
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.)
Withdrawn
Application number
GBGB0419696.0A
Other versions
GB2417788A (en
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.)
Lights and Signals Ltd
Original Assignee
Lights and Signals Ltd
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 Lights and Signals Ltd filed Critical Lights and Signals Ltd
Priority to GB0419696A priority Critical patent/GB2417788A/en
Publication of GB0419696D0 publication Critical patent/GB0419696D0/en
Publication of GB2417788A publication Critical patent/GB2417788A/en
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
    • B61L5/00—Local operating mechanisms for points or track-mounted scotch-blocks; Visible or audible signals; Local operating mechanisms for visible or audible signals
    • B61L5/12—Visible signals
    • B61L5/18—Light signals; Mechanisms associated therewith, e.g. blinders
    • B61L5/1809—Daylight signals
    • B61L5/1881—Wiring diagrams for power supply, control or testing
    • 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
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
    • B61L2207/00—Features of light signals
    • B61L2207/02—Features of light signals using light-emitting diodes [LEDs]
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/44—Testing lamps
    • 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]

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Circuit Arrangement For Electric Light Sources In General (AREA)
GB0419696A 2004-09-06 2004-09-06 Emulation circuit for a low energy lamp Withdrawn GB2417788A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB0419696A GB2417788A (en) 2004-09-06 2004-09-06 Emulation circuit for a low energy lamp

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB0419696A GB2417788A (en) 2004-09-06 2004-09-06 Emulation circuit for a low energy lamp

Publications (2)

Publication Number Publication Date
GB0419696D0 true GB0419696D0 (en) 2004-10-06
GB2417788A GB2417788A (en) 2006-03-08

Family

ID=33156044

Family Applications (1)

Application Number Title Priority Date Filing Date
GB0419696A Withdrawn GB2417788A (en) 2004-09-06 2004-09-06 Emulation circuit for a low energy lamp

Country Status (1)

Country Link
GB (1) GB2417788A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2429542B (en) * 2005-08-25 2008-02-27 Lights And Signals Ltd Emulation circuit
GB2625522A (en) * 2022-12-15 2024-06-26 Robert Pearson Stephen Traffic signals halogen to LED conversion system

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6762563B2 (en) * 1999-11-19 2004-07-13 Gelcore Llc Module for powering and monitoring light-emitting diodes
US6498440B2 (en) * 2000-03-27 2002-12-24 Gentex Corporation Lamp assembly incorporating optical feedback
GB2371689B (en) * 2001-03-10 2003-07-16 Siemens Plc Electrical apparatus and method
DE10215486C1 (en) * 2002-04-09 2003-10-30 Hella Kg Hueck & Co Automobile lighting device uses light-emitting diode (LED) lamp with incorporated function monitoring circuit and provision of current or voltage pulse for switching parallel load simulating standard light bulb
DE10215472B4 (en) * 2002-04-09 2007-08-02 Hella Kgaa Hueck & Co. Method for operating a lighting device for vehicles with a lamp arrangement having at least one light-emitting diode and illumination device for vehicles

Also Published As

Publication number Publication date
GB2417788A (en) 2006-03-08

Similar Documents

Publication Publication Date Title
GB2455224B (en) Integrated circuit photodetetectors
GB0511186D0 (en) Circuit design
IL241732B (en) 2-di-tert-butyloxycarbonylamino-6-bromo-9-(2-trimehylsilylethoxy)methyl-9h-purine
HK1110705A1 (en) Protection circuit
GB2433675B (en) Communications circuit design
GB0505552D0 (en) Increasing circuit reliability
EP1706297A4 (en) Wake-up circuit
ZA200801624B (en) Emulation circuit
SG119300A1 (en) Circuit board
EP1873806A4 (en) Circuit breaker
TWI349901B (en) Circuit device
TWI366855B (en) Circuit breaker
ZA200704636B (en) 2-alkyl-cycloalk(en)yl-carboxamides
TWI318504B (en) Delay circuit
EP1961129A4 (en) Clock-free activation circuit
GB0402095D0 (en) Circuit
GB2410385B (en) Snubber circuit
GB0509295D0 (en) Voltage-multiplier circuit
EP1720213A4 (en) Transducer circuit
TWI329417B (en) Circuit device
EP1774617A4 (en) Line-doubler delay circuit
PL1741117T3 (en) Switchgear
GB0522760D0 (en) Integrated circuit structure
SG115776A1 (en) Transconductance circuit
EP1819045A4 (en) Multiplexer circuit

Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)