JP2009519580A - Led照明装置 - Google Patents
Led照明装置 Download PDFInfo
- Publication number
- JP2009519580A JP2009519580A JP2008545224A JP2008545224A JP2009519580A JP 2009519580 A JP2009519580 A JP 2009519580A JP 2008545224 A JP2008545224 A JP 2008545224A JP 2008545224 A JP2008545224 A JP 2008545224A JP 2009519580 A JP2009519580 A JP 2009519580A
- Authority
- JP
- Japan
- Prior art keywords
- led
- bypass switch
- lighting device
- leds
- constant current
- 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
Links
- 239000003086 colorant Substances 0.000 claims description 3
- 238000005286 illumination Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 239000003990 capacitor Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 230000001052 transient effect Effects 0.000 description 1
Images
Classifications
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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]
- H05B45/40—Details of LED load circuits
- H05B45/44—Details of LED load circuits with an active control inside an LED matrix
-
- 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]
- H05B45/20—Controlling the colour 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]
-
- 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
-
- 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]
Abstract
Description
Claims (6)
- 切り換えられたモードの電源によって電力を供給されている少なくとも第1及び第2のLEDを有するLED照明装置であって、前記第1のLEDを流れる電流は、前記第1のLEDに並列接続されている第1バイパススイッチによって制御され、前記第2のLEDを流れる電流は、前記第2のLEDに並列接続されている第2バイパススイッチによって制御され、前記第1のLED及び前記第2のLEDは、前記切り換えられたモードの電源と第1定電流源との間で直列接続されており、前記切り換えられたモードの電源は、前記第1バイパススイッチ及び前記第2バイパススイッチの状態に依存して複数の異なる出力電圧を供給し、この結果、前記のような電圧は、発光しているLEDの数に依存している、LED照明装置。
- 前記第1のLED及び前記第2のLEDは、パルス幅変調によって制御され、この結果、前記第1のLED及び前記第2のLEDは、パルス幅変調期間の始まりにおいて同時にオンに切り換えられ、前記パルス幅変調期間において、それぞれのデューティサイクルによって決定された時点にオフに切り換えられる、請求項1に記載のLED照明装置。
- 前記切り換えられたモードの電源が、前記パルス幅変調期間の始まりの前に、最大電圧に向かって上昇する、請求項2に記載のLED照明装置。
- 全ての前記LEDがオフに切り換えられた場合、前記出力電圧をゼロ又はゼロの近くに駆動する手段を有する、請求項1乃至3の何れか一項に記載のLED照明装置。
- 前記第1のLED及び前記第2のLEDは、異なる色の光を発する、請求項1乃至4の何れか一項に記載のLED照明装置。
- 前記第1のLED及び前記第2のLEDが、それぞれ、緑及び青色の光を発すると共に、第3バイパススイッチによって制御されている第3のLEDを介して前記第1定電流源に接続されており、前記第1のLED及び前記第2のLEDは、第4バイパススイッチによって制御されている第4のLEDを介して第2定電流源に接続されており、前記第3のLED及び前記第4のLEDは、赤又は琥珀色の光を発する、請求項5に記載のLED照明装置。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP05112040.0 | 2005-12-13 | ||
EP05112040 | 2005-12-13 | ||
PCT/IB2006/054779 WO2007069200A1 (en) | 2005-12-13 | 2006-12-12 | Led lighting device |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2013162385A Division JP5757981B2 (ja) | 2005-12-13 | 2013-08-05 | Led照明装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2009519580A true JP2009519580A (ja) | 2009-05-14 |
JP5543109B2 JP5543109B2 (ja) | 2014-07-09 |
Family
ID=37945009
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2008545224A Active JP5543109B2 (ja) | 2005-12-13 | 2006-12-12 | Led照明装置 |
JP2013162385A Active JP5757981B2 (ja) | 2005-12-13 | 2013-08-05 | Led照明装置 |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2013162385A Active JP5757981B2 (ja) | 2005-12-13 | 2013-08-05 | Led照明装置 |
Country Status (8)
Country | Link |
---|---|
US (3) | US8004211B2 (ja) |
EP (1) | EP1964449B1 (ja) |
JP (2) | JP5543109B2 (ja) |
KR (1) | KR101315078B1 (ja) |
CN (1) | CN101331796B (ja) |
ES (1) | ES2509347T3 (ja) |
TW (1) | TWI433588B (ja) |
WO (1) | WO2007069200A1 (ja) |
Cited By (6)
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JP2010272410A (ja) * | 2009-05-22 | 2010-12-02 | Hitachi Displays Ltd | バックライト装置並びに表示装置 |
JP2013229350A (ja) * | 2005-12-13 | 2013-11-07 | Koninklijke Philips Nv | Led照明装置 |
JP2013231969A (ja) * | 2012-04-27 | 2013-11-14 | Han Il Qu | Ledモジュールを備えたエアー看板 |
JP2014146595A (ja) * | 2013-01-25 | 2014-08-14 | Dialog Semiconductor Inc | 調光可能なled照明システムにおける色温度の調節 |
JP2015110356A (ja) * | 2013-12-06 | 2015-06-18 | 株式会社小糸製作所 | 車両用灯具 |
WO2018123280A1 (ja) * | 2016-12-27 | 2018-07-05 | ソニー株式会社 | 光源装置、発光装置、および表示装置 |
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TW200934294A (en) * | 2008-01-24 | 2009-08-01 | Everbright Optech Inc | Apparatus for controlling light emitting devices |
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ES2509347T3 (es) | 2014-10-17 |
JP5543109B2 (ja) | 2014-07-09 |
US8823274B2 (en) | 2014-09-02 |
TW200731580A (en) | 2007-08-16 |
US20080303452A1 (en) | 2008-12-11 |
JP5757981B2 (ja) | 2015-08-05 |
KR20080083313A (ko) | 2008-09-17 |
US20140125237A1 (en) | 2014-05-08 |
EP1964449A1 (en) | 2008-09-03 |
TWI433588B (zh) | 2014-04-01 |
KR101315078B1 (ko) | 2013-10-08 |
EP1964449B1 (en) | 2014-07-23 |
WO2007069200A1 (en) | 2007-06-21 |
US20110304274A1 (en) | 2011-12-15 |
CN101331796B (zh) | 2012-04-11 |
US8773042B2 (en) | 2014-07-08 |
US8004211B2 (en) | 2011-08-23 |
CN101331796A (zh) | 2008-12-24 |
JP2013229350A (ja) | 2013-11-07 |
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