IN2014CN01065A - - Google Patents

Info

Publication number
IN2014CN01065A
IN2014CN01065A IN1065CHN2014A IN2014CN01065A IN 2014CN01065 A IN2014CN01065 A IN 2014CN01065A IN 1065CHN2014 A IN1065CHN2014 A IN 1065CHN2014A IN 2014CN01065 A IN2014CN01065 A IN 2014CN01065A
Authority
IN
India
Prior art keywords
voltage
current
momentary value
rectifier
input terminals
Prior art date
Application number
Inventor
Henricus Marius Joseph Maria Kahlman
Ralph Kurt
Haimin Tao
Original Assignee
Koninkl Philips Nv
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 Koninkl Philips Nv filed Critical Koninkl Philips Nv
Publication of IN2014CN01065A publication Critical patent/IN2014CN01065A/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]
    • H05B45/40—Details of LED load circuits
    • H05B45/44—Details of LED load circuits with an active control inside an LED matrix
    • H05B45/48—Details of LED load circuits with an active control inside an LED matrix having LEDs organised in strings and incorporating parallel shunting devices

Landscapes

  • Circuit Arrangement For Electric Light Sources In General (AREA)

Abstract

A LED light source comprises a first rectifier (DB1) having input terminals coupled to an AC voltage source and output terminals connected by a first series arrangement comprising N LED loads and further comprises circuitry (I1 I2 I3 CC) for making the LED loads one by one carry a current when the momentary value of the AC voltage increases and one by one stop carrying a current when the momentary value of the AC voltage decreases. The LED light source also comprises a second rectifier (DB2) having input terminals coupled to the AC voltage source via a reactive element and output terminals connected by a second series arrangement comprising M LED loads and further comprises circuitry (I4) for making the LED loads one by one carry a current when the momentary value of the AC voltage present at the input terminals of the second rectifier increases and one by one stop carrying a current when the momentary value of the AC voltage decreases.
IN1065CHN2014 2011-08-23 2012-08-21 IN2014CN01065A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US201161526302P 2011-08-23 2011-08-23
PCT/IB2012/054217 WO2013027171A1 (en) 2011-08-23 2012-08-21 Led light source

Publications (1)

Publication Number Publication Date
IN2014CN01065A true IN2014CN01065A (en) 2015-04-10

Family

ID=47080748

Family Applications (1)

Application Number Title Priority Date Filing Date
IN1065CHN2014 IN2014CN01065A (en) 2011-08-23 2012-08-21

Country Status (7)

Country Link
US (1) US9345080B2 (en)
EP (1) EP2749127B1 (en)
JP (1) JP2014529854A (en)
CN (1) CN103748962B (en)
IN (1) IN2014CN01065A (en)
RU (1) RU2014110786A (en)
WO (1) WO2013027171A1 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6436972B2 (en) * 2014-03-17 2018-12-12 シチズン時計株式会社 LED lighting device
DE102014104365B4 (en) * 2014-03-28 2015-11-26 Vossloh-Schwabe Deutschland Gmbh lighting device
ES2644863T3 (en) * 2015-06-04 2017-11-30 Philips Lighting Holding B.V. LED light source with enhanced luminescence reduction
US11191220B2 (en) * 2016-09-25 2021-12-07 Illum Horticulture Llc Method and apparatus for horticultural lighting with current sharing
CN110418453B (en) * 2019-04-12 2024-04-19 德昊电子科技(深圳)有限公司 Current and mixed light non-stroboscopic circuit for self-adaptively controlling multi-path LED lamp

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7081722B1 (en) 2005-02-04 2006-07-25 Kimlong Huynh Light emitting diode multiphase driver circuit and method
US7649322B2 (en) * 2006-11-08 2010-01-19 Seasonal Specialties Llc Limited flicker light emitting diode string
DE602007007804D1 (en) * 2006-11-10 2010-08-26 Philips Solid State Lighting METHOD AND DEVICE FOR CONTROLLING REAR-OPERATED LED
EP2316251B1 (en) 2008-07-30 2012-05-09 Philips Intellectual Property & Standards GmbH Device with light-emitting diode circuits
WO2010038190A1 (en) 2008-10-02 2010-04-08 Philips Intellectual Property & Standards Gmbh Led circuit arrangement with improved flicker performance
ES2442947T3 (en) * 2008-12-12 2014-02-14 Koninklijke Philips N.V. LED light source and lamp comprising such a LED light source
WO2010143239A1 (en) 2009-06-09 2010-12-16 ニッタ株式会社 Direct-current power supply device and led lighting device
JP2011023231A (en) * 2009-07-16 2011-02-03 Mitsubishi Electric Corp Lighting device and luminaire
JP2011054738A (en) * 2009-09-01 2011-03-17 Panasonic Electric Works Co Ltd Light emitting device, and lighting system using the same
CA2783742A1 (en) * 2009-12-11 2011-06-16 Koninklijke Philips Electronics N.V. Driving modes for light circuits

Also Published As

Publication number Publication date
US20140197740A1 (en) 2014-07-17
EP2749127B1 (en) 2015-10-14
WO2013027171A1 (en) 2013-02-28
JP2014529854A (en) 2014-11-13
US9345080B2 (en) 2016-05-17
RU2014110786A (en) 2015-09-27
CN103748962B (en) 2017-04-26
EP2749127A1 (en) 2014-07-02
CN103748962A (en) 2014-04-23

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