WO2011021096A8 - Apparatus and methods of operation of passive and active led lighting equipment - Google Patents

Apparatus and methods of operation of passive and active led lighting equipment Download PDF

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Publication number
WO2011021096A8
WO2011021096A8 PCT/IB2010/002052 IB2010002052W WO2011021096A8 WO 2011021096 A8 WO2011021096 A8 WO 2011021096A8 IB 2010002052 W IB2010002052 W IB 2010002052W WO 2011021096 A8 WO2011021096 A8 WO 2011021096A8
Authority
WO
WIPO (PCT)
Prior art keywords
passive
led lighting
active led
electrolytic capacitors
proposed
Prior art date
Application number
PCT/IB2010/002052
Other languages
French (fr)
Other versions
WO2011021096A1 (en
Inventor
Ron Shu Yuen Hui
Wu Chen
Original Assignee
City University Of Hong Kong
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 US12/544,545 external-priority patent/US8482214B2/en
Priority claimed from US12/582,620 external-priority patent/US9717120B2/en
Application filed by City University Of Hong Kong filed Critical City University Of Hong Kong
Priority to EP10809603.3A priority Critical patent/EP2494853A4/en
Priority to UAA201303436A priority patent/UA110624C2/en
Priority to US13/129,793 priority patent/US20120146525A1/en
Priority to AU2010286130A priority patent/AU2010286130B2/en
Priority to CA2808715A priority patent/CA2808715A1/en
Priority to RU2013112119/07A priority patent/RU2013112119A/en
Publication of WO2011021096A1 publication Critical patent/WO2011021096A1/en
Publication of WO2011021096A8 publication Critical patent/WO2011021096A8/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]
    • H05B45/30—Driver circuits
    • H05B45/37—Converter circuits
    • H05B45/3725—Switched mode power supply [SMPS]
    • 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
    • H05B45/355—Power factor correction [PFC]; Reactive power compensation

Landscapes

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

Abstract

This invention is concerned with the control and design of a passive or an active LED lighting system that does not need electrolytic capacitors in the entire system and can generate light output with reduced luminous flux fluctuation. The proposal is particularly suitable, but not restricted to, off-line applications in which the lighting system is powered by the ac mains. By eliminating electrolytic capacitors which have a limited lifetime of typically 15,000 hours, the proposed system can be developed with robust electrical components such as inductor and diode circuits, and it features long lifetime, low maintenance cost, robustness against extreme temperature variations and good power factor. The proposed circuits can become dimmable systems if the AC input voltage can be adjusted by external means.
PCT/IB2010/002052 2009-04-24 2010-08-20 Apparatus and methods of operation of passive and active led lighting equipment WO2011021096A1 (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
EP10809603.3A EP2494853A4 (en) 2009-08-20 2010-08-20 Apparatus and methods of operation of passive and active led lighting equipment
UAA201303436A UA110624C2 (en) 2009-08-20 2010-08-20 System and method of passive and active equipment of led lighting
US13/129,793 US20120146525A1 (en) 2009-04-24 2010-08-20 Apparatus and methods of operation of passive and active led lighting equipment
AU2010286130A AU2010286130B2 (en) 2009-08-20 2010-08-20 Apparatus and methods of operation of passive and active LED lighting equipment
CA2808715A CA2808715A1 (en) 2009-08-20 2010-08-20 Apparatus and methods of operation of passive and active led lighting equipment
RU2013112119/07A RU2013112119A (en) 2009-08-20 2010-08-20 DEVICE AND METHODS OF FUNCTIONING PASSIVE AND ACTIVE LED LIGHTING EQUIPMENT

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
US12/544,545 2009-08-20
US12/544,545 US8482214B2 (en) 2009-04-24 2009-08-20 Apparatus and methods of operation of passive LED lighting equipment
US12/582,620 2009-10-20
US12/582,620 US9717120B2 (en) 2009-04-24 2009-10-20 Apparatus and methods of operation of passive LED lighting equipment
PCT/IB2010/000891 WO2010122403A1 (en) 2009-04-24 2010-04-21 Apparatus and methods of operation of passive led lighting equipment
IBPCT/IB2010/000891 2010-04-21

Publications (2)

Publication Number Publication Date
WO2011021096A1 WO2011021096A1 (en) 2011-02-24
WO2011021096A8 true WO2011021096A8 (en) 2011-07-28

Family

ID=43606684

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2010/002052 WO2011021096A1 (en) 2009-04-24 2010-08-20 Apparatus and methods of operation of passive and active led lighting equipment

Country Status (7)

Country Link
EP (1) EP2494853A4 (en)
AU (1) AU2010286130B2 (en)
CA (1) CA2808715A1 (en)
RU (1) RU2013112119A (en)
TW (1) TW201121367A (en)
WO (1) WO2011021096A1 (en)
ZA (1) ZA201204558B (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103248246B (en) * 2011-03-25 2015-04-22 杭州士兰微电子股份有限公司 Off-line AC-DC (alternating current-direct current) control circuit and switching circuit comprising control circuit
TWI542127B (en) 2012-01-03 2016-07-11 財團法人工業技術研究院 Active buck power factor correction device
US8823283B2 (en) * 2012-03-13 2014-09-02 Dialog Semiconductor Inc. Power dissipation monitor for current sink function of power switching transistor
DE102012224206A1 (en) * 2012-12-21 2014-06-26 Tridonic Gmbh & Co. Kg LED converter with frost start function
US10588185B2 (en) * 2015-09-09 2020-03-10 Signify Holding B.V. LED tube lamp

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7276858B2 (en) * 2005-10-28 2007-10-02 Fiber Optic Designs, Inc. Decorative lighting string with stacked rectification
US7719202B2 (en) * 2006-10-23 2010-05-18 Zippy Technology Corp. Light emitting diode driving circuit
US7486030B1 (en) * 2007-10-18 2009-02-03 Pwi, Inc. Universal input voltage device

Also Published As

Publication number Publication date
AU2010286130A1 (en) 2014-02-20
TW201121367A (en) 2011-06-16
ZA201204558B (en) 2013-02-27
WO2011021096A1 (en) 2011-02-24
RU2013112119A (en) 2014-09-27
EP2494853A1 (en) 2012-09-05
EP2494853A4 (en) 2013-11-06
CA2808715A1 (en) 2011-02-24
AU2010286130B2 (en) 2015-09-24

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