JP5329235B2 - Ｌｅｄドライバ回路 - Google Patents

Ｌｅｄドライバ回路 Download PDF

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Publication number
JP5329235B2
JP5329235B2 JP2008551939A JP2008551939A JP5329235B2 JP 5329235 B2 JP5329235 B2 JP 5329235B2 JP 2008551939 A JP2008551939 A JP 2008551939A JP 2008551939 A JP2008551939 A JP 2008551939A JP 5329235 B2 JP5329235 B2 JP 5329235B2
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JP
Japan
Prior art keywords
led
driver circuit
comparator
led driver
voltage
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
JP2008551939A
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English (en)
Japanese (ja)
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JP2009525595A5 (enExample
JP2009525595A (ja
Inventor
ゲオルク ザウエルレンダー
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.)
Koninklijke Philips NV
Original Assignee
Koninklijke Philips NV
Koninklijke Philips Electronics NV
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Application filed by Koninklijke Philips NV, Koninklijke Philips Electronics NV filed Critical Koninklijke Philips NV
Publication of JP2009525595A publication Critical patent/JP2009525595A/ja
Publication of JP2009525595A5 publication Critical patent/JP2009525595A5/ja
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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
    • 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]
    • H05B45/375—Switched mode power supply [SMPS] using buck topology
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2115/00—Light-generating elements of semiconductor light sources
    • F21Y2115/10—Light-emitting diodes [LED]
    • 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]
    • H05B45/385—Switched mode power supply [SMPS] using flyback topology

Landscapes

  • Circuit Arrangement For Electric Light Sources In General (AREA)
  • Dc-Dc Converters (AREA)
  • Led Devices (AREA)
  • Electronic Switches (AREA)
JP2008551939A 2006-01-31 2007-01-26 Ｌｅｄドライバ回路 Active JP5329235B2 (ja)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP06101079.9 2006-01-31
EP06101079 2006-01-31
PCT/IB2007/050279 WO2007088505A1 (en) 2006-01-31 2007-01-26 Led driver circuit

Publications (3)

Publication Number Publication Date
JP2009525595A JP2009525595A (ja) 2009-07-09
JP2009525595A5 JP2009525595A5 (enExample) 2010-03-11
JP5329235B2 true JP5329235B2 (ja) 2013-10-30

Family

ID=37905021

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2008551939A Active JP5329235B2 (ja) 2006-01-31 2007-01-26 Ｌｅｄドライバ回路

Country Status (7)

Country Link
US (1) US8217587B2 (enExample)
EP (1) EP1982560A1 (enExample)
JP (1) JP5329235B2 (enExample)
KR (1) KR101303362B1 (enExample)
CN (1) CN101379879B (enExample)
TW (1) TWI434609B (enExample)
WO (1) WO2007088505A1 (enExample)

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CN104470060B (zh) * 2014-10-20 2017-09-15 深圳市华星光电技术有限公司 模拟调光转换电路及显示装置
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Also Published As

Publication number Publication date
EP1982560A1 (en) 2008-10-22
TW200803618A (en) 2008-01-01
US20090021182A1 (en) 2009-01-22
KR101303362B1 (ko) 2013-09-03
TWI434609B (zh) 2014-04-11
CN101379879B (zh) 2011-08-17
WO2007088505A1 (en) 2007-08-09
JP2009525595A (ja) 2009-07-09
CN101379879A (zh) 2009-03-04
KR20080098396A (ko) 2008-11-07
US8217587B2 (en) 2012-07-10

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