JP2012009391A - Led点灯装置 - Google Patents
Led点灯装置 Download PDFInfo
- Publication number
- JP2012009391A JP2012009391A JP2010146565A JP2010146565A JP2012009391A JP 2012009391 A JP2012009391 A JP 2012009391A JP 2010146565 A JP2010146565 A JP 2010146565A JP 2010146565 A JP2010146565 A JP 2010146565A JP 2012009391 A JP2012009391 A JP 2012009391A
- Authority
- JP
- Japan
- Prior art keywords
- voltage
- led lamp
- current
- power conversion
- output
- 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.)
- Granted
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- 238000001514 detection method Methods 0.000 claims abstract description 37
- 238000006243 chemical reaction Methods 0.000 claims abstract description 28
- 238000010891 electric arc Methods 0.000 abstract description 8
- 239000003990 capacitor Substances 0.000 description 4
- 239000011521 glass Substances 0.000 description 4
- 238000009499 grossing Methods 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005669 field effect Effects 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
Images
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]
- H05B45/50—Circuit arrangements for operating light-emitting diodes [LED] responsive to malfunctions or undesirable behaviour of LEDs; responsive to LED life; Protective 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]
- H05B45/30—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
-
- 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
-
- 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
- H05B47/00—Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
- H05B47/20—Responsive to malfunctions or to light source life; for protection
- H05B47/25—Circuit arrangements for protecting against overcurrent
-
- 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)
Abstract
【解決手段】出力電圧Voが可変である電力変換部1と、電力変換部1からランプソケットLSを介してLEDランプLAに供給される出力電流Ioを検出する電流検出部2と、ランプソケットLSを介してLEDランプLAに印加される出力電圧Voを検出する電圧検出部3と、電流検出部2で検出される出力電流Ioを目標値に一致させるように電力変換部1を制御して出力電圧Voを増減する制御部4とを備える。ランプソケットLSにLEDランプLAが装着されてから下限値以上の電流がLEDランプLAに流れるまでの期間においては、電力変換部1の出力電圧Voが制御部4によって最大負荷電圧以下に制限されることがない。そのため、LEDランプLAを迅速且つ確実に点灯させつつアーク放電の継続時間を短縮することができる。
【選択図】 図1
Description
2 電流検出部
3 電圧検出部
4 制御部
LA LEDランプ
LS ランプソケット
Claims (1)
- 出力電圧が可変である電力変換部と、当該電力変換部からランプソケットを介してLEDランプに供給される出力電流を検出する電流検出部と、前記ランプソケットを介してLEDランプに印加される前記出力電圧を検出する電圧検出部と、前記電流検出部で検出される出力電流を目標値に一致させるように前記電力変換部を制御して前記出力電圧を増減する制御部とを備え、
前記制御部は、前記電流検出部で検出される出力電流が所定の下限値以上である場合は前記出力電圧が所定の最大負荷電圧を超えないように前記電力変換部を制御し、前記電流検出部で検出される出力電流が前記下限値未満である場合は前記出力電圧が前記最大負荷電圧よりも高い所定の無負荷電圧を超えないように前記電力変換部を制御することを特徴とするLED点灯装置。
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2010146565A JP5537286B2 (ja) | 2010-06-28 | 2010-06-28 | Led点灯装置 |
EP11164749.1A EP2403319B1 (en) | 2010-06-28 | 2011-05-04 | Led lighting device |
US13/159,777 US8575857B2 (en) | 2010-06-28 | 2011-06-14 | LED lighting device |
KR1020110061331A KR101276300B1 (ko) | 2010-06-28 | 2011-06-23 | Led 조명 장치 |
CN201110173829.8A CN102300365B (zh) | 2010-06-28 | 2011-06-23 | Led照明装置 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2010146565A JP5537286B2 (ja) | 2010-06-28 | 2010-06-28 | Led点灯装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2012009391A true JP2012009391A (ja) | 2012-01-12 |
JP5537286B2 JP5537286B2 (ja) | 2014-07-02 |
Family
ID=44653101
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2010146565A Active JP5537286B2 (ja) | 2010-06-28 | 2010-06-28 | Led点灯装置 |
Country Status (5)
Country | Link |
---|---|
US (1) | US8575857B2 (ja) |
EP (1) | EP2403319B1 (ja) |
JP (1) | JP5537286B2 (ja) |
KR (1) | KR101276300B1 (ja) |
CN (1) | CN102300365B (ja) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2013168304A (ja) * | 2012-02-16 | 2013-08-29 | Eye Lighting Syst Corp | Led電源、これを含む照明器具 |
JP2013196758A (ja) * | 2012-03-15 | 2013-09-30 | Toshiba Lighting & Technology Corp | Led点灯装置および照明器具 |
JP2014135167A (ja) * | 2013-01-09 | 2014-07-24 | Sanken Electric Co Ltd | Led電源装置 |
Families Citing this family (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5641400B2 (ja) * | 2010-07-26 | 2014-12-17 | 東芝ライテック株式会社 | Ledランプ用電源装置およびledランプシステム |
JP2014002946A (ja) * | 2012-06-19 | 2014-01-09 | Sanken Electric Co Ltd | Led照明用電源 |
JP2014117048A (ja) * | 2012-12-07 | 2014-06-26 | Toshiba Lighting & Technology Corp | 直流電源装置および点灯装置 |
CN103179756B (zh) * | 2013-03-19 | 2015-06-24 | 深圳市明微电子股份有限公司 | 一种具有宽输入电压范围的led线性恒流驱动控制器 |
TWM461277U (zh) * | 2013-03-27 | 2013-09-01 | Hep Tech Co Ltd | 多規格混用之發光二極體晶片驅動裝置 |
CN104427695B (zh) * | 2013-08-28 | 2018-07-17 | 欧司朗有限公司 | 用于照明装置的驱动电路和具有该驱动电路的照明装置 |
CN105682282B (zh) * | 2015-12-29 | 2017-07-18 | 科博达技术有限公司 | Led灯双路均流电路 |
US10288235B1 (en) | 2017-03-03 | 2019-05-14 | Willis Electric Co., Ltd. | Refractive decorative lighting string |
CN107027214B (zh) * | 2017-03-10 | 2019-09-27 | 广东优尼克智能照明科技有限公司 | 一种灯具功率自校正方法 |
US10907781B2 (en) | 2018-03-09 | 2021-02-02 | Blooming International Limited | LED decorative lighting assembly having two parallel conductors and an insulating portion encapsulating portions of the conductors and a space there between |
US10728970B2 (en) * | 2018-04-27 | 2020-07-28 | Blooming International Limited | Driving circuit apparatus for automatically detecting optimized driving voltage of light string |
CN108539979B (zh) * | 2018-05-02 | 2020-11-17 | 成都芯源系统有限公司 | 直流变换器及电压直流变换方法 |
US11424583B2 (en) | 2019-06-19 | 2022-08-23 | Blooming International Limited | Serially-connectable light string |
CN112637991A (zh) * | 2019-09-20 | 2021-04-09 | 台达电子工业股份有限公司 | 应用于发光二极管的电源供应器及其操作方法 |
EP3838671A1 (de) * | 2019-12-16 | 2021-06-23 | ZKW Group GmbH | Schaltungssystem |
CN112671252B (zh) * | 2020-12-07 | 2024-04-09 | 珠海格力电器股份有限公司 | 一种直流照明启动控制方法、装置及系统 |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2004039288A (ja) * | 2002-06-28 | 2004-02-05 | Matsushita Electric Works Ltd | 照明装置 |
JP2006085993A (ja) * | 2004-09-15 | 2006-03-30 | Denso Corp | 発光ダイオード点灯装置 |
JP2007157423A (ja) * | 2005-12-02 | 2007-06-21 | Stanley Electric Co Ltd | 電源装置 |
JP2008283206A (ja) * | 2008-06-19 | 2008-11-20 | Aw Japan:Kk | Led点灯装置 |
JP2011258534A (ja) * | 2010-05-14 | 2011-12-22 | Toshiba Lighting & Technology Corp | 直流電源装置およびled照明装置 |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB0402974D0 (en) * | 2004-02-11 | 2004-03-17 | Bhagat Peter | Apparatus for the control of lighting and associated methods |
JP2006010271A (ja) | 2004-06-29 | 2006-01-12 | Calsonic Kansei Corp | 燃料電池自動車用の熱交換器 |
JP4771354B2 (ja) * | 2004-09-17 | 2011-09-14 | 株式会社小糸製作所 | 車両用灯具の点灯制御回路 |
US7800876B2 (en) * | 2006-01-09 | 2010-09-21 | Microsemi Corp. - Analog Mixed Signal Group Ltd. | Fault detection mechanism for LED backlighting |
US7667414B2 (en) * | 2006-05-24 | 2010-02-23 | Stanley Electric Co., Ltd. | LED lighting apparatus |
JP2007318879A (ja) * | 2006-05-24 | 2007-12-06 | Stanley Electric Co Ltd | 電源装置 |
JP5142620B2 (ja) | 2007-08-06 | 2013-02-13 | シャープ株式会社 | 照明装置 |
KR100867551B1 (ko) * | 2007-05-18 | 2008-11-10 | 삼성전기주식회사 | Led 어레이 구동 장치 |
JP5491690B2 (ja) * | 2007-09-25 | 2014-05-14 | パナソニック株式会社 | 点灯装置、および照明器具 |
JP2009111035A (ja) * | 2007-10-26 | 2009-05-21 | Panasonic Electric Works Co Ltd | 発光ダイオード駆動装置、発光ダイオード駆動装置を用いた照明装置、車室内用照明装置、車両用照明装置 |
JP5219255B2 (ja) * | 2008-03-26 | 2013-06-26 | パナソニック株式会社 | 発光装置 |
JP5289471B2 (ja) * | 2011-01-21 | 2013-09-11 | 三菱電機株式会社 | 光源点灯装置及び照明装置 |
-
2010
- 2010-06-28 JP JP2010146565A patent/JP5537286B2/ja active Active
-
2011
- 2011-05-04 EP EP11164749.1A patent/EP2403319B1/en not_active Not-in-force
- 2011-06-14 US US13/159,777 patent/US8575857B2/en active Active
- 2011-06-23 KR KR1020110061331A patent/KR101276300B1/ko not_active IP Right Cessation
- 2011-06-23 CN CN201110173829.8A patent/CN102300365B/zh not_active Expired - Fee Related
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2004039288A (ja) * | 2002-06-28 | 2004-02-05 | Matsushita Electric Works Ltd | 照明装置 |
JP2006085993A (ja) * | 2004-09-15 | 2006-03-30 | Denso Corp | 発光ダイオード点灯装置 |
JP2007157423A (ja) * | 2005-12-02 | 2007-06-21 | Stanley Electric Co Ltd | 電源装置 |
JP2008283206A (ja) * | 2008-06-19 | 2008-11-20 | Aw Japan:Kk | Led点灯装置 |
JP2011258534A (ja) * | 2010-05-14 | 2011-12-22 | Toshiba Lighting & Technology Corp | 直流電源装置およびled照明装置 |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2013168304A (ja) * | 2012-02-16 | 2013-08-29 | Eye Lighting Syst Corp | Led電源、これを含む照明器具 |
JP2013196758A (ja) * | 2012-03-15 | 2013-09-30 | Toshiba Lighting & Technology Corp | Led点灯装置および照明器具 |
JP2014135167A (ja) * | 2013-01-09 | 2014-07-24 | Sanken Electric Co Ltd | Led電源装置 |
Also Published As
Publication number | Publication date |
---|---|
EP2403319B1 (en) | 2013-11-20 |
CN102300365A (zh) | 2011-12-28 |
US20110316442A1 (en) | 2011-12-29 |
KR20120001625A (ko) | 2012-01-04 |
US8575857B2 (en) | 2013-11-05 |
KR101276300B1 (ko) | 2013-06-24 |
EP2403319A1 (en) | 2012-01-04 |
JP5537286B2 (ja) | 2014-07-02 |
CN102300365B (zh) | 2014-06-04 |
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