BR112013024731A2 - fonte de luz de led e método de fornecimento de uma disposição em série de n cargas de led - Google Patents

fonte de luz de led e método de fornecimento de uma disposição em série de n cargas de led

Info

Publication number
BR112013024731A2
BR112013024731A2 BR112013024731A BR112013024731A BR112013024731A2 BR 112013024731 A2 BR112013024731 A2 BR 112013024731A2 BR 112013024731 A BR112013024731 A BR 112013024731A BR 112013024731 A BR112013024731 A BR 112013024731A BR 112013024731 A2 BR112013024731 A2 BR 112013024731A2
Authority
BR
Brazil
Prior art keywords
led
loads
light source
series
supplying
Prior art date
Application number
BR112013024731A
Other languages
English (en)
Inventor
Haimin Tao
Martinus Petrus Creusen
Ralph Kurt
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 BR112013024731A2 publication Critical patent/BR112013024731A2/pt

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)
  • Control Of El Displays (AREA)

Abstract

fonte de luz led uma disposição em série de cargas de led (lp1-lp4) é acoplada entre terminais de saída de um retificador tendo seus terminais de entrada acoplados a uma alimentação elética que fornece uma tensão de ca, de baixa frequência. o meio de controle torna as cargas de led condutivas, uma a uma, quando a amplitude da tensão de fornecimento aumentar, e não condutivas, uma a uma, quando a amplitude da tensão de fornecimento diminuir. a primeira carga de led (lp1-lp2) tem uma tensão direta que é substancialmente maior que a das outras cargas de led. como uma consequência, a utilização de led é comparativamente alta, permitindo, assim, que as cargas de led utilizadas na disposição em série sejam comparativamente econômicas.
BR112013024731A 2011-03-31 2012-03-19 fonte de luz de led e método de fornecimento de uma disposição em série de n cargas de led BR112013024731A2 (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP11160666 2011-03-31
PCT/IB2012/051312 WO2012131530A1 (en) 2011-03-31 2012-03-19 Led light source

Publications (1)

Publication Number Publication Date
BR112013024731A2 true BR112013024731A2 (pt) 2016-12-27

Family

ID=45932462

Family Applications (1)

Application Number Title Priority Date Filing Date
BR112013024731A BR112013024731A2 (pt) 2011-03-31 2012-03-19 fonte de luz de led e método de fornecimento de uma disposição em série de n cargas de led

Country Status (7)

Country Link
US (1) US9113524B2 (pt)
EP (1) EP2692206A1 (pt)
JP (1) JP2014514752A (pt)
CN (1) CN103477711B (pt)
BR (1) BR112013024731A2 (pt)
RU (1) RU2588578C2 (pt)
WO (1) WO2012131530A1 (pt)

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WO2018047915A1 (ja) * 2016-09-09 2018-03-15 株式会社小糸製作所 点灯回路、車両用灯具および光源の駆動方法
US11191220B2 (en) * 2016-09-25 2021-12-07 Illum Horticulture Llc Method and apparatus for horticultural lighting with current sharing
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Also Published As

Publication number Publication date
US20140015430A1 (en) 2014-01-16
US9113524B2 (en) 2015-08-18
JP2014514752A (ja) 2014-06-19
WO2012131530A1 (en) 2012-10-04
CN103477711A (zh) 2013-12-25
RU2588578C2 (ru) 2016-07-10
RU2013148529A (ru) 2015-05-10
CN103477711B (zh) 2016-11-02
EP2692206A1 (en) 2014-02-05

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Legal Events

Date Code Title Description
B25A Requested transfer of rights approved

Owner name: PHILIPS LIGHTING HOLDING B.V. (NL)

B08F Application dismissed because of non-payment of annual fees [chapter 8.6 patent gazette]
B08K Patent lapsed as no evidence of payment of the annual fee has been furnished to inpi [chapter 8.11 patent gazette]