JP2009123681A - Ｌｅｄ調光装置 - Google Patents

Ｌｅｄ調光装置 Download PDF

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Publication number
JP2009123681A
JP2009123681A JP2008211182A JP2008211182A JP2009123681A JP 2009123681 A JP2009123681 A JP 2009123681A JP 2008211182 A JP2008211182 A JP 2008211182A JP 2008211182 A JP2008211182 A JP 2008211182A JP 2009123681 A JP2009123681 A JP 2009123681A
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JP
Japan
Prior art keywords
dimming
led
current
led load
load
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.)
Pending
Application number
JP2008211182A
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English (en)
Japanese (ja)
Other versions
JP2009123681A5 (enExample
Inventor
Hiroyuki Sako
浩行 迫
Shigeaki Yamazaki
茂章 山崎
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.)
Panasonic Electric Works Co Ltd
Original Assignee
Panasonic Electric Works Co Ltd
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 Panasonic Electric Works Co Ltd filed Critical Panasonic Electric Works Co Ltd
Priority to JP2008211182A priority Critical patent/JP2009123681A/ja
Priority to CN200880112462A priority patent/CN101836505A/zh
Priority to EP08841000.6A priority patent/EP2214457B1/en
Priority to US12/738,148 priority patent/US8339053B2/en
Priority to PCT/JP2008/068622 priority patent/WO2009054290A1/ja
Publication of JP2009123681A publication Critical patent/JP2009123681A/ja
Publication of JP2009123681A5 publication Critical patent/JP2009123681A5/ja
Pending legal-status Critical Current

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    • 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
    • H05B45/14—Controlling the intensity of the light using electrical feedback from LEDs or from LED modules
    • 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
    • H05B45/34—Voltage stabilisation; Maintaining constant voltage
    • 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
    • H05B45/345—Current stabilisation; Maintaining constant current
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
    • Y02B20/30—Semiconductor lamps, e.g. solid state lamps [SSL] light emitting diodes [LED] or organic LED [OLED]

Landscapes

  • Circuit Arrangement For Electric Light Sources In General (AREA)
  • Led Devices (AREA)
JP2008211182A 2007-10-25 2008-08-19 Ｌｅｄ調光装置 Pending JP2009123681A (ja)

Priority Applications (5)

Application Number Priority Date Filing Date Title
JP2008211182A JP2009123681A (ja) 2007-10-25 2008-08-19 Ｌｅｄ調光装置
CN200880112462A CN101836505A (zh) 2007-10-25 2008-10-15 Led调光装置
EP08841000.6A EP2214457B1 (en) 2007-10-25 2008-10-15 Led dimming apparatus
US12/738,148 US8339053B2 (en) 2007-10-25 2008-10-15 LED dimming apparatus
PCT/JP2008/068622 WO2009054290A1 (ja) 2007-10-25 2008-10-15 Ｌｅｄ調光装置

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2007278191 2007-10-25
JP2008211182A JP2009123681A (ja) 2007-10-25 2008-08-19 Ｌｅｄ調光装置

Related Child Applications (4)

Application Number Title Priority Date Filing Date
JP2011052215A Division JP2011108670A (ja) 2007-10-25 2011-03-09 Ｌｅｄ調光装置
JP2011052213A Division JP5047373B2 (ja) 2007-10-25 2011-03-09 Ｌｅｄ調光装置
JP2011052214A Division JP5047374B2 (ja) 2007-10-25 2011-03-09 Ｌｅｄ調光装置
JP2011052216A Division JP2011108671A (ja) 2007-10-25 2011-03-09 Ｌｅｄ調光装置

Publications (2)

Publication Number Publication Date
JP2009123681A true JP2009123681A (ja) 2009-06-04
JP2009123681A5 JP2009123681A5 (enExample) 2011-04-21

Family

ID=40579395

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2008211182A Pending JP2009123681A (ja) 2007-10-25 2008-08-19 Ｌｅｄ調光装置

Country Status (5)

Country Link
US (1) US8339053B2 (enExample)
EP (1) EP2214457B1 (enExample)
JP (1) JP2009123681A (enExample)
CN (1) CN101836505A (enExample)
WO (1) WO2009054290A1 (enExample)

Cited By (33)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010282983A (ja) * 2008-09-10 2010-12-16 Toshiba Lighting & Technology Corp 電源装置及び照明器具
JP2011028862A (ja) * 2009-07-21 2011-02-10 Sharp Corp 照明装置
CN102149240A (zh) * 2010-02-05 2011-08-10 夏普株式会社 Led驱动电路、调光装置、led照明用具、led照明装置及led照明系统
JP2011210742A (ja) * 2011-07-29 2011-10-20 Sharp Corp 照明装置及び調光装置
JP2012003935A (ja) * 2010-06-16 2012-01-05 Tdk-Lambda Corp 発光素子駆動装置
JP2012043603A (ja) * 2010-08-18 2012-03-01 Sharp Corp 照明装置
EP2445315A1 (en) 2010-10-25 2012-04-25 Panasonic Corporation Dimming device and lighting apparatus using same
WO2012063815A1 (ja) * 2010-11-12 2012-05-18 東芝ライテック株式会社 Ｌｅｄ点灯装置およびｌｅｄ照明装置
JP2012134100A (ja) * 2010-12-24 2012-07-12 Murata Mfg Co Ltd Ｌｅｄ駆動電源装置およびｌｅｄ照明装置
US8258706B2 (en) 2008-10-09 2012-09-04 Sharp Kabushiki Kaisha LED drive circuit, LED illumination component, LED illumination device, and LED illumination system
JP2012221899A (ja) * 2011-04-13 2012-11-12 Panasonic Corp 固体光源点灯装置およびそれを用いた照明器具
JP2012226924A (ja) * 2011-04-18 2012-11-15 Panasonic Corp 半導体発光素子の点灯装置およびそれを用いた照明器具
WO2012153594A1 (ja) * 2011-05-12 2012-11-15 コニカミノルタホールディングス株式会社 照明装置
US8354804B2 (en) 2008-03-24 2013-01-15 Toshiba Lighting & Technology Corporation Power supply device and lighting equipment
US8432103B2 (en) 2009-10-26 2013-04-30 Sharp Kabushiki Kaisha LED drive circuit, LED illumination fixture, LED illumination device, and LED illumination system
JP2013178941A (ja) * 2012-02-28 2013-09-09 Koizumi Lighting Technology Corp 照明装置
TWI420966B (zh) * 2009-09-14 2013-12-21 System General Corp 離線發光二極體驅動電路
JP2014026954A (ja) * 2012-07-26 2014-02-06 O2 Micro Inc 光源を駆動する回路および方法
US8698420B2 (en) 2009-03-06 2014-04-15 Sharp Kabushiki Kaisha LED drive circuit, LED lamp, LED lighting appliance, and LED lighting system
JP2014123448A (ja) * 2012-12-20 2014-07-03 Minebea Co Ltd Ｌｅｄ駆動装置及び照明器具
WO2014125579A1 (ja) 2013-02-13 2014-08-21 新電元工業株式会社 Ｌｅｄ照明調光回路、および、ｌｅｄ照明調光方法
JP2014187028A (ja) * 2014-05-02 2014-10-02 Toshiba Lighting & Technology Corp 光源点灯装置及び照明器具
JP2014235960A (ja) * 2013-06-05 2014-12-15 四変テック株式会社 Ｌｅｄ点灯装置
JP2015041427A (ja) * 2013-08-20 2015-03-02 パナソニック株式会社 点灯装置及びそれを用いた照明器具
EP2364064A3 (en) * 2010-03-03 2015-10-21 Panasonic Intellectual Property Management Co., Ltd. LED lighting device
JP2016501421A (ja) * 2013-04-03 2016-01-18 コーニンクレッカ フィリップス エヌ ヴェＫｏｎｉｎｋｌｉｊｋｅ Ｐｈｉｌｉｐｓ Ｎ．Ｖ． 調光器及び調光モードを有するｌｅｄドライバ
JP2016096101A (ja) * 2014-11-17 2016-05-26 ルネサスエレクトロニクス株式会社 Ｌｅｄ駆動方法およびｌｅｄ駆動装置
DE102016100710A1 (de) 2015-01-19 2016-07-21 Panasonic Intellectual Property Management Co., Ltd. Bestromungsbaugruppe, Leuchte und Beleuchtungssystem
JP2017505979A (ja) * 2014-02-03 2017-02-23 クゥアルコム・インコーポレイテッドＱｕａｌｃｏｍｍ Ｉｎｃｏｒｐｏｒａｔｅｄ 発光ダイオードアレイ中の電流を制御するための回路および方法
JP2017099077A (ja) * 2015-11-19 2017-06-01 新電元工業株式会社 Ｌｅｄ用電源装置、および、半導体集積回路
US9788376B2 (en) 2015-06-09 2017-10-10 Nlt Technologies, Ltd. LED backlight driving circuit, liquid crystal display device, and method of driving a driving circuit
JP2018170300A (ja) * 2018-08-09 2018-11-01 ルネサスエレクトロニクス株式会社 Ｌｅｄ駆動方法およびｌｅｄ駆動装置
JP2022041033A (ja) * 2020-08-31 2022-03-11 東芝ライテック株式会社 照明装置

Families Citing this family (67)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI398836B (zh) * 2008-04-23 2013-06-11 Innolux Corp 背光模組、液晶顯示裝置及光源驅動方法
CN102014540B (zh) 2010-03-04 2011-12-28 凹凸电子（武汉）有限公司 驱动电路及控制光源的电力的控制器
US9253843B2 (en) 2008-12-12 2016-02-02 02Micro Inc Driving circuit with dimming controller for driving light sources
US9386653B2 (en) 2008-12-12 2016-07-05 O2Micro Inc Circuits and methods for driving light sources
US9030122B2 (en) 2008-12-12 2015-05-12 O2Micro, Inc. Circuits and methods for driving LED light sources
US9232591B2 (en) 2008-12-12 2016-01-05 O2Micro Inc. Circuits and methods for driving light sources
JP2012023001A (ja) 2009-08-21 2012-02-02 Toshiba Lighting & Technology Corp 点灯回路及び照明装置
WO2011070907A1 (ja) * 2009-12-11 2011-06-16 コニカミノルタホールディングス株式会社 照明装置
JP5214585B2 (ja) * 2009-12-25 2013-06-19 シャープ株式会社 Ｌｅｄ駆動回路、位相制御式調光器、ｌｅｄ照明灯具、ｌｅｄ照明機器、及びｌｅｄ照明システム
US8698419B2 (en) 2010-03-04 2014-04-15 O2Micro, Inc. Circuits and methods for driving light sources
CN103391006A (zh) 2012-05-11 2013-11-13 凹凸电子（武汉）有限公司 光源驱动电路、控制电力转换器的控制器及方法
JP5031865B2 (ja) * 2010-03-23 2012-09-26 シャープ株式会社 Ｌｅｄ駆動回路、ｌｅｄ照明灯具、ｌｅｄ照明機器、及びｌｅｄ照明システム
TW201206248A (en) * 2010-03-25 2012-02-01 Koninkl Philips Electronics Nv Method and apparatus for increasing dimming range of solid state lighting fixtures
CN102448211A (zh) * 2010-09-30 2012-05-09 富准精密工业(深圳)有限公司 发光二极管驱动电路
US8471501B2 (en) 2011-02-22 2013-06-25 Solomon Systech Limited Illumination brightness control apparatus and method
JP5760176B2 (ja) * 2011-03-23 2015-08-05 パナソニックＩｐマネジメント株式会社 固体光源点灯装置およびそれを用いた照明器具と照明システム
JP5887524B2 (ja) * 2011-04-19 2016-03-16 パナソニックＩｐマネジメント株式会社 電源装置
CN102395230B (zh) * 2011-05-04 2013-06-12 凹凸电子（武汉）有限公司 控制光源调光的控制器和方法及光源驱动电路
US8933642B2 (en) 2011-05-13 2015-01-13 General Electric Company Dimmable LED lamp
FR2976150B1 (fr) 2011-06-01 2013-06-14 Thales Sa Dispositif de commande de diodes electroluminescentes a tres grande dynamique de luminance pour ecran de visualisation
JP5900980B2 (ja) * 2011-07-04 2016-04-06 Ｎｅｃライティング株式会社 発光素子故障検出器及び発光素子故障検出方法
EP2568769A1 (en) * 2011-09-12 2013-03-13 Philips Intellectual Property & Standards GmbH Electrical device and power grid system
TW201318476A (zh) * 2011-10-21 2013-05-01 Luxul Technology Inc 可連續調光的交流ｌｅｄ裝置
JP2013122846A (ja) * 2011-12-09 2013-06-20 Panasonic Corp 点灯装置
JP2013203273A (ja) * 2012-03-29 2013-10-07 Ichikoh Ind Ltd 車両用灯具
CN102708801A (zh) * 2012-06-06 2012-10-03 天津三星电子有限公司 一种显示终端背光亮度的控制方法及其显示终端
JP5942256B2 (ja) 2012-06-08 2016-06-29 パナソニックＩｐマネジメント株式会社 点灯装置及び照明器具
JP2014002867A (ja) 2012-06-15 2014-01-09 Panasonic Corp 点灯装置及び照明器具
JP6008277B2 (ja) * 2012-07-11 2016-10-19 パナソニックＩｐマネジメント株式会社 固体光源点灯装置、照明器具、照明システム
US8816604B2 (en) 2012-08-03 2014-08-26 Ge Lighting Solutions, Llc. Dimming control method and apparatus for LED light source
JP6029084B2 (ja) * 2012-09-24 2016-11-24 東芝ライテック株式会社 電源装置および照明装置
KR20140042310A (ko) * 2012-09-28 2014-04-07 엘지디스플레이 주식회사 Ｄｃ-ｄｃ 변환기 제어 회로와 이를 이용한 영상 표시장치 및 그 구동방법
JP2014089844A (ja) * 2012-10-29 2014-05-15 Toshiba Lighting & Technology Corp 電源装置および照明装置
DE102012023244A1 (de) * 2012-11-15 2014-05-15 Tridonic Gmbh & Co Kg Betriebsgerät für ein Leuchtmittel und Verfahren zum Dimmen eines Leuchtmittels
JP6217959B2 (ja) * 2012-12-07 2017-10-25 東芝ライテック株式会社 電源回路及び照明装置
WO2014115009A1 (en) * 2013-01-22 2014-07-31 Koninklijke Philips N.V. Light source and illumination system for aquaculture application.
US9049760B2 (en) * 2013-03-11 2015-06-02 Immense Advance Technology Corp. PFC LED driver having a flicker control mechanism
JP2014186972A (ja) * 2013-03-25 2014-10-02 Yamaha Corp 制御信号生成装置及び音響信号処理装置
US9113521B2 (en) 2013-05-29 2015-08-18 Lutron Electronics Co., Inc. Load control device for a light-emitting diode light source
CN103415109B (zh) 2013-07-22 2015-09-30 深圳Tcl新技术有限公司 Led背光亮度的调整方法
DE102014111085A1 (de) 2013-08-20 2015-02-26 Panasonic Corporation Beleuchtungsbaugruppe und diese verwendende Beleuchtungsvorrichtung
JP6283187B2 (ja) 2013-09-30 2018-02-21 ローム株式会社 Ｌｅｄ電源装置
EP3066892B1 (en) 2013-11-08 2020-08-05 Lutron Technology Company LLC Load control device for a light-emitting diode light source
DE102013022685B4 (de) 2013-12-03 2025-02-06 Tridonic Gmbh & Co Kg Treiberschaltung und Verfahren zum Betrieb einer dimmbaren LED-Strecke in einem Dimmbereich mit zwei Bereichen
WO2015137453A1 (ja) 2014-03-13 2015-09-17 ローム株式会社 発光負荷駆動装置及びこれを用いた照明用光源装置
US9468065B2 (en) * 2014-10-15 2016-10-11 Texas Instruments Incorporated Combined hybrid and local dimming control of light emitting diodes
JP6516178B2 (ja) * 2014-10-20 2019-05-22 パナソニックＩｐマネジメント株式会社 調光制御ユニット、照明システム、及び設備機器
US9565731B2 (en) 2015-05-01 2017-02-07 Lutron Electronics Co., Inc. Load control device for a light-emitting diode light source
WO2016205761A1 (en) 2015-06-19 2016-12-22 Lutron Electronics Co., Inc. Load control device for a light-emitting diode light source
JP6667154B2 (ja) 2015-07-09 2020-03-18 パナソニックＩｐマネジメント株式会社 点灯装置、車両用照明装置、及びそれを用いた車両
US9844111B1 (en) * 2015-07-24 2017-12-12 Marvell International Ltd. Dimmable LED driving system and method for reducing flicker
EP3145279B1 (en) * 2015-09-07 2020-10-07 OSRAM GmbH A method of operating led lighting sources and a led lamp for use with said method
FR3041858A1 (fr) * 2015-09-25 2017-03-31 Valeo Vision Systeme et procede de pilotage d'un courant electrique au sein d'au moins un element photoemetteur apte a emettre une couleur variant en fonction de l'intensite du courant electrique qu'il recoit
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JP7296894B2 (ja) * 2017-07-07 2023-06-23 シグニファイ ホールディング ビー ヴィ 照明ドライバ、照明回路、及び駆動方法
TWI621373B (zh) * 2017-08-18 2018-04-11 Dimming control optimization system
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EP3776523A1 (en) 2018-03-29 2021-02-17 Barco n.v. Driver for led display
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GB201914186D0 (en) 2019-10-01 2019-11-13 Barco Nv Driver for LED or OLED display
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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002324685A (ja) * 2001-04-25 2002-11-08 Sony Corp 照明装置
WO2005101916A1 (en) * 2004-04-19 2005-10-27 Tir Systems Ltd. Parallel pulse code modulation system and method
JP2007189004A (ja) * 2006-01-12 2007-07-26 Hitachi Lighting Ltd 直流電源装置、発光ダイオード用電源、及び照明装置

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2159842A1 (en) * 1994-12-05 1996-06-06 Joe A. Ortiz Diode drive current source
JP2003157986A (ja) 2001-11-26 2003-05-30 Matsushita Electric Works Ltd 照明装置
US7378805B2 (en) * 2005-03-22 2008-05-27 Fairchild Semiconductor Corporation Single-stage digital power converter for driving LEDs
JP5175427B2 (ja) * 2005-05-31 2013-04-03 Ｎｅｃディスプレイソリューションズ株式会社 発光素子駆動装置
CN101060752A (zh) 2006-04-20 2007-10-24 中强电子股份有限公司 冷阴极灯管的多灯管调光控制方法
TW200816608A (en) * 2006-09-26 2008-04-01 Beyond Innovation Tech Co Ltd DC/DC converter
US20100109537A1 (en) * 2006-10-25 2010-05-06 Panasonic Electric Works Co., Ltd. Led lighting circuit and illuminating apparatus using the same
JP2008187821A (ja) * 2007-01-30 2008-08-14 Matsushita Electric Works Ltd 絶縁型ａｃ−ｄｃコンバータおよびそれを用いるｌｅｄ用直流電源装置
TWI394485B (zh) * 2008-06-18 2013-04-21 Ite Tech Inc 發光元件驅動電路及其方法

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002324685A (ja) * 2001-04-25 2002-11-08 Sony Corp 照明装置
WO2005101916A1 (en) * 2004-04-19 2005-10-27 Tir Systems Ltd. Parallel pulse code modulation system and method
JP2007189004A (ja) * 2006-01-12 2007-07-26 Hitachi Lighting Ltd 直流電源装置、発光ダイオード用電源、及び照明装置

Cited By (49)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8354804B2 (en) 2008-03-24 2013-01-15 Toshiba Lighting & Technology Corporation Power supply device and lighting equipment
JP2010282983A (ja) * 2008-09-10 2010-12-16 Toshiba Lighting & Technology Corp 電源装置及び照明器具
US8258706B2 (en) 2008-10-09 2012-09-04 Sharp Kabushiki Kaisha LED drive circuit, LED illumination component, LED illumination device, and LED illumination system
US8810135B2 (en) 2008-10-09 2014-08-19 Sharp Kabushiki Kaisha LED drive circuit, LED illumination component, LED illumination device, and LED illumination system
US8698420B2 (en) 2009-03-06 2014-04-15 Sharp Kabushiki Kaisha LED drive circuit, LED lamp, LED lighting appliance, and LED lighting system
KR101353218B1 (ko) * 2009-07-21 2014-01-17 샤프 가부시키가이샤 조명 장치
EP2458943A4 (en) * 2009-07-21 2014-04-16 Sharp Kk LIGHTING DEVICE
US8810149B2 (en) 2009-07-21 2014-08-19 Sharp Kabushiki Kaisha Lighting apparatus
JP2011028862A (ja) * 2009-07-21 2011-02-10 Sharp Corp 照明装置
TWI420966B (zh) * 2009-09-14 2013-12-21 System General Corp 離線發光二極體驅動電路
US8432103B2 (en) 2009-10-26 2013-04-30 Sharp Kabushiki Kaisha LED drive circuit, LED illumination fixture, LED illumination device, and LED illumination system
JP2011165394A (ja) * 2010-02-05 2011-08-25 Sharp Corp Ｌｅｄ駆動回路、調光装置、ｌｅｄ照明灯具、ｌｅｄ照明機器、及びｌｅｄ照明システム
CN102149240A (zh) * 2010-02-05 2011-08-10 夏普株式会社 Led驱动电路、调光装置、led照明用具、led照明装置及led照明系统
US8400079B2 (en) 2010-02-05 2013-03-19 Sharp Kabushiki Kaisha LED drive circuit, dimming device, LED illumination fixture, LED illumination device, and LED illumination system
EP2364064A3 (en) * 2010-03-03 2015-10-21 Panasonic Intellectual Property Management Co., Ltd. LED lighting device
JP2012003935A (ja) * 2010-06-16 2012-01-05 Tdk-Lambda Corp 発光素子駆動装置
JP2012043603A (ja) * 2010-08-18 2012-03-01 Sharp Corp 照明装置
EP2445315A1 (en) 2010-10-25 2012-04-25 Panasonic Corporation Dimming device and lighting apparatus using same
JP5618220B2 (ja) * 2010-11-12 2014-11-05 東芝ライテック株式会社 Ｌｅｄ点灯装置およびｌｅｄ照明装置
JP2014222668A (ja) * 2010-11-12 2014-11-27 東芝ライテック株式会社 Ｌｅｄ点灯装置およびｌｅｄ照明装置
WO2012063815A1 (ja) * 2010-11-12 2012-05-18 東芝ライテック株式会社 Ｌｅｄ点灯装置およびｌｅｄ照明装置
JP2012134100A (ja) * 2010-12-24 2012-07-12 Murata Mfg Co Ltd Ｌｅｄ駆動電源装置およびｌｅｄ照明装置
JP2012221899A (ja) * 2011-04-13 2012-11-12 Panasonic Corp 固体光源点灯装置およびそれを用いた照明器具
JP2012226924A (ja) * 2011-04-18 2012-11-15 Panasonic Corp 半導体発光素子の点灯装置およびそれを用いた照明器具
JPWO2012153594A1 (ja) * 2011-05-12 2014-07-31 コニカミノルタ株式会社 照明装置
WO2012153594A1 (ja) * 2011-05-12 2012-11-15 コニカミノルタホールディングス株式会社 照明装置
JP2011210742A (ja) * 2011-07-29 2011-10-20 Sharp Corp 照明装置及び調光装置
JP2013178941A (ja) * 2012-02-28 2013-09-09 Koizumi Lighting Technology Corp 照明装置
JP2014026954A (ja) * 2012-07-26 2014-02-06 O2 Micro Inc 光源を駆動する回路および方法
JP2014123448A (ja) * 2012-12-20 2014-07-03 Minebea Co Ltd Ｌｅｄ駆動装置及び照明器具
US8988010B2 (en) 2012-12-20 2015-03-24 Minebea Co., Ltd. LED driving device and lighting device
WO2014125579A1 (ja) 2013-02-13 2014-08-21 新電元工業株式会社 Ｌｅｄ照明調光回路、および、ｌｅｄ照明調光方法
US9247606B2 (en) 2013-02-13 2016-01-26 Shindengen Electric Manufacturing Co., Ltd. LED illumination dimming circuit and LED illumination dimming method
JP2016501421A (ja) * 2013-04-03 2016-01-18 コーニンクレッカ フィリップス エヌ ヴェＫｏｎｉｎｋｌｉｊｋｅ Ｐｈｉｌｉｐｓ Ｎ．Ｖ． 調光器及び調光モードを有するｌｅｄドライバ
US9532424B2 (en) 2013-04-03 2016-12-27 Philips Lighting Holding B.V. Dimmer and LED driver with dimming modes
JP2014235960A (ja) * 2013-06-05 2014-12-15 四変テック株式会社 Ｌｅｄ点灯装置
JP2015041427A (ja) * 2013-08-20 2015-03-02 パナソニック株式会社 点灯装置及びそれを用いた照明器具
JP2017505979A (ja) * 2014-02-03 2017-02-23 クゥアルコム・インコーポレイテッドＱｕａｌｃｏｍｍ Ｉｎｃｏｒｐｏｒａｔｅｄ 発光ダイオードアレイ中の電流を制御するための回路および方法
JP2014187028A (ja) * 2014-05-02 2014-10-02 Toshiba Lighting & Technology Corp 光源点灯装置及び照明器具
JP2016096101A (ja) * 2014-11-17 2016-05-26 ルネサスエレクトロニクス株式会社 Ｌｅｄ駆動方法およびｌｅｄ駆動装置
US10104732B2 (en) 2014-11-17 2018-10-16 Renesas Electronics Corporation LED drive method and LED drive device
US9491823B2 (en) 2015-01-19 2016-11-08 Panasonic Intellectual Property Management Co., Ltd. Lighting device, lighting fixture and lighting system
JP2016134282A (ja) * 2015-01-19 2016-07-25 パナソニックＩｐマネジメント株式会社 点灯装置、照明器具および照明システム
DE102016100710A1 (de) 2015-01-19 2016-07-21 Panasonic Intellectual Property Management Co., Ltd. Bestromungsbaugruppe, Leuchte und Beleuchtungssystem
US9788376B2 (en) 2015-06-09 2017-10-10 Nlt Technologies, Ltd. LED backlight driving circuit, liquid crystal display device, and method of driving a driving circuit
JP2017099077A (ja) * 2015-11-19 2017-06-01 新電元工業株式会社 Ｌｅｄ用電源装置、および、半導体集積回路
JP2018170300A (ja) * 2018-08-09 2018-11-01 ルネサスエレクトロニクス株式会社 Ｌｅｄ駆動方法およびｌｅｄ駆動装置
JP2022041033A (ja) * 2020-08-31 2022-03-11 東芝ライテック株式会社 照明装置
JP7478347B2 (ja) 2020-08-31 2024-05-07 東芝ライテック株式会社 照明装置

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