GB2513478B - Circuits and methods for driving light sources - Google Patents

Circuits and methods for driving light sources

Info

Publication number
GB2513478B
GB2513478B GB1405042.1A GB201405042A GB2513478B GB 2513478 B GB2513478 B GB 2513478B GB 201405042 A GB201405042 A GB 201405042A GB 2513478 B GB2513478 B GB 2513478B
Authority
GB
United Kingdom
Prior art keywords
circuits
methods
light sources
driving light
driving
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.)
Active
Application number
GB1405042.1A
Other versions
GB2513478A (en
GB2513478B8 (en
GB201405042D0 (en
GB2513478A8 (en
Inventor
Lin Feng
Lei Huiyou
Kuo Ching-Chuan
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.)
O2Micro Inc
Original Assignee
O2Micro Inc
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
Priority claimed from CN201310155502.7A external-priority patent/CN103582239B/en
Priority claimed from US13/922,826 external-priority patent/US20130278145A1/en
Application filed by O2Micro Inc filed Critical O2Micro Inc
Publication of GB201405042D0 publication Critical patent/GB201405042D0/en
Publication of GB2513478A publication Critical patent/GB2513478A/en
Application granted granted Critical
Publication of GB2513478B publication Critical patent/GB2513478B/en
Publication of GB2513478B8 publication Critical patent/GB2513478B8/en
Publication of GB2513478A8 publication Critical patent/GB2513478A8/en
Active 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
    • 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
    • H05B45/37—Converter circuits
    • H05B45/3725—Switched mode power supply [SMPS]
GB1405042.1A 2013-04-28 2014-03-21 Circuits and methods for driving light sources Active GB2513478B8 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201310155502.7A CN103582239B (en) 2012-07-26 2013-04-28 The method of light adjusting controller, light source driving circuit and control dimming light source
US13/922,826 US20130278145A1 (en) 2008-12-12 2013-06-20 Circuits and methods for driving light sources

Publications (5)

Publication Number Publication Date
GB201405042D0 GB201405042D0 (en) 2014-05-07
GB2513478A GB2513478A (en) 2014-10-29
GB2513478B true GB2513478B (en) 2016-10-05
GB2513478B8 GB2513478B8 (en) 2018-08-08
GB2513478A8 GB2513478A8 (en) 2018-08-08

Family

ID=50686637

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1405042.1A Active GB2513478B8 (en) 2013-04-28 2014-03-21 Circuits and methods for driving light sources

Country Status (2)

Country Link
JP (1) JP2014216320A (en)
GB (1) GB2513478B8 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2017142994A (en) * 2016-02-10 2017-08-17 アール・ビー・コントロールズ株式会社 Illuminating device
JP6805808B2 (en) * 2016-12-26 2020-12-23 セイコーエプソン株式会社 Light emission control circuit, light source device, and electronic equipment
CN109729614A (en) * 2017-10-27 2019-05-07 凹凸电子（武汉）有限公司 Controller, light source driving circuit and the method for controlling light source module

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20080030153A1 (en) * 2006-08-07 2008-02-07 Rohm Co., Ltd. Lighting device
US20080224631A1 (en) * 2007-03-12 2008-09-18 Melanson John L Color variations in a dimmable lighting device with stable color temperature light sources
US20100007292A1 (en) * 2008-07-08 2010-01-14 Samsung Electro-Mechanics Co., Ltd. Illumination apparatus for adjusting color temperature and brightness and illumination system including the same
US20100026191A1 (en) * 2006-10-06 2010-02-04 Koninklijke Philips Electronics N.V. Power supply device for light elements and method for supplying power to light elements
US20110115407A1 (en) * 2009-11-13 2011-05-19 Polar Semiconductor, Inc. Simplified control of color temperature for general purpose lighting
US20130043801A1 (en) * 2011-08-19 2013-02-21 Chao-Li Kuwu Lighting device

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20080030153A1 (en) * 2006-08-07 2008-02-07 Rohm Co., Ltd. Lighting device
US20100026191A1 (en) * 2006-10-06 2010-02-04 Koninklijke Philips Electronics N.V. Power supply device for light elements and method for supplying power to light elements
US20080224631A1 (en) * 2007-03-12 2008-09-18 Melanson John L Color variations in a dimmable lighting device with stable color temperature light sources
US20100007292A1 (en) * 2008-07-08 2010-01-14 Samsung Electro-Mechanics Co., Ltd. Illumination apparatus for adjusting color temperature and brightness and illumination system including the same
US20110115407A1 (en) * 2009-11-13 2011-05-19 Polar Semiconductor, Inc. Simplified control of color temperature for general purpose lighting
US20130043801A1 (en) * 2011-08-19 2013-02-21 Chao-Li Kuwu Lighting device

Also Published As

Publication number Publication date
GB2513478A (en) 2014-10-29
GB2513478B8 (en) 2018-08-08
GB201405042D0 (en) 2014-05-07
GB2513478A8 (en) 2018-08-08
JP2014216320A (en) 2014-11-17

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Legal Events

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S117 Correction of errors in patents and applications (sect. 117/patents act 1977)

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Free format text: CORRECTIONS ALLOWED; REQUEST FOR CORRECTION UNDER SECTION 117 FILED ON 25 MAY 2018

732E Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)

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