GB2419750B - LED controller and control method thereof - Google Patents

LED controller and control method thereof

Info

Publication number
GB2419750B
GB2419750B GB0511473A GB0511473A GB2419750B GB 2419750 B GB2419750 B GB 2419750B GB 0511473 A GB0511473 A GB 0511473A GB 0511473 A GB0511473 A GB 0511473A GB 2419750 B GB2419750 B GB 2419750B
Authority
GB
United Kingdom
Prior art keywords
control method
led controller
led
controller
control
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
Application number
GB0511473A
Other versions
GB2419750A (en
GB0511473D0 (en
Inventor
Cheng Fang Chen
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.)
Premier Image Technology Corp
Original Assignee
Premier Image Technology Corp
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 Premier Image Technology Corp filed Critical Premier Image Technology Corp
Publication of GB0511473D0 publication Critical patent/GB0511473D0/en
Publication of GB2419750A publication Critical patent/GB2419750A/en
Application granted granted Critical
Publication of GB2419750B publication Critical patent/GB2419750B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • H05B33/0833—
    • H05B33/0881—
    • 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
    • H05B45/397—Current mirror circuits
GB0511473A 2004-10-28 2005-06-06 LED controller and control method thereof Expired - Fee Related GB2419750B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
TW93102650 2004-10-28

Publications (3)

Publication Number Publication Date
GB0511473D0 GB0511473D0 (en) 2005-07-13
GB2419750A GB2419750A (en) 2006-05-03
GB2419750B true GB2419750B (en) 2007-03-21

Family

ID=34836946

Family Applications (1)

Application Number Title Priority Date Filing Date
GB0511473A Expired - Fee Related GB2419750B (en) 2004-10-28 2005-06-06 LED controller and control method thereof

Country Status (1)

Country Link
GB (1) GB2419750B (en)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11260568A (en) * 1998-03-11 1999-09-24 Omron Corp Lighting system
US20030030808A1 (en) * 2001-06-07 2003-02-13 Marshall Thomas M. LED luminaire with light sensor configurations for optical feedback
US20030076056A1 (en) * 2001-10-22 2003-04-24 Lumileds Usa Method and apparatus for sensing the color point of an RGB LED white luminary using photodiodes
US20030111533A1 (en) * 2001-12-19 2003-06-19 Koninklijke Philips Electronics N.V. RGB led based white light control system with quasi-uniform color metric
GB2395074A (en) * 2002-11-04 2004-05-12 Dorman Traffic Products Ltd Control circuit for rail signal
GB2408315A (en) * 2003-09-18 2005-05-25 Radiant Res Ltd Illumination control system for light emitters
GB2409291A (en) * 2003-12-18 2005-06-22 Agilent Technologies Inc Control of light source using reference light source

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11260568A (en) * 1998-03-11 1999-09-24 Omron Corp Lighting system
US20030030808A1 (en) * 2001-06-07 2003-02-13 Marshall Thomas M. LED luminaire with light sensor configurations for optical feedback
US20030076056A1 (en) * 2001-10-22 2003-04-24 Lumileds Usa Method and apparatus for sensing the color point of an RGB LED white luminary using photodiodes
US20030111533A1 (en) * 2001-12-19 2003-06-19 Koninklijke Philips Electronics N.V. RGB led based white light control system with quasi-uniform color metric
GB2395074A (en) * 2002-11-04 2004-05-12 Dorman Traffic Products Ltd Control circuit for rail signal
GB2408315A (en) * 2003-09-18 2005-05-25 Radiant Res Ltd Illumination control system for light emitters
GB2409291A (en) * 2003-12-18 2005-06-22 Agilent Technologies Inc Control of light source using reference light source

Also Published As

Publication number Publication date
GB2419750A (en) 2006-05-03
GB0511473D0 (en) 2005-07-13

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20090606