JP5641180B2 - Led点灯装置および照明装置 - Google Patents
Led点灯装置および照明装置 Download PDFInfo
- Publication number
- JP5641180B2 JP5641180B2 JP2009216751A JP2009216751A JP5641180B2 JP 5641180 B2 JP5641180 B2 JP 5641180B2 JP 2009216751 A JP2009216751 A JP 2009216751A JP 2009216751 A JP2009216751 A JP 2009216751A JP 5641180 B2 JP5641180 B2 JP 5641180B2
- Authority
- JP
- Japan
- Prior art keywords
- current
- led
- circuit
- lighting device
- converter
- 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.)
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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]
- H05B45/40—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]
- H05B45/30—Driver circuits
- H05B45/357—Driver circuits specially adapted for retrofit LED light sources
- H05B45/3574—Emulating the electrical or functional characteristics of incandescent lamps
- H05B45/3575—Emulating the electrical or functional characteristics of incandescent lamps by means of dummy loads or bleeder circuits, e.g. for dimmers
-
- 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]
Description
Claims (3)
- 位相制御形の調光器を介して交流入力端を交流電源に接続する整流回路と;
調光器の保持電流を確保するブリーダ電流引出手段と;
入力端が整流回路の直流出力端に接続し、かつ出力コンデンサを並列接続した出力端にLEDを接続して点灯するコンバータと;
調光度に応じてコンバータの連続した直流出力電流を変化させる制御手段と;
コンバータの出力端に出力コンデンサと並列接続し、LEDの少なくとも調光下限近傍においてLEDに流れる点灯電流より大きいバイパス電流を流すバイパス回路と;
を具備していることを特徴とするLED点灯装置。 - バイパス回路は、バイパス電流の流れを作り、点灯電流がLEDを通って流れ、バイパス電流がLEDを迂回するように構成されることを特徴とする請求項1記載のLED点灯装置。
- 照明器具本体と;
照明器具本体に配設された請求項1または2記載のLED点灯装置と;
LED点灯装置の出力端に接続するとともに照明器具本体に配設されたLEDと;
を具備していることを特徴とする照明装置。
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2009216751A JP5641180B2 (ja) | 2009-09-18 | 2009-09-18 | Led点灯装置および照明装置 |
CN201010286962.XA CN102026445B (zh) | 2009-09-18 | 2010-09-16 | Led点灯装置及照明装置 |
EP10177426A EP2330869A1 (en) | 2009-09-18 | 2010-09-17 | LED lighting device and illumination apparatus |
US12/885,053 US8492992B2 (en) | 2009-09-18 | 2010-09-17 | LED lighting device and illumination apparatus |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2009216751A JP5641180B2 (ja) | 2009-09-18 | 2009-09-18 | Led点灯装置および照明装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2011065922A JP2011065922A (ja) | 2011-03-31 |
JP5641180B2 true JP5641180B2 (ja) | 2014-12-17 |
Family
ID=43558386
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2009216751A Active JP5641180B2 (ja) | 2009-09-18 | 2009-09-18 | Led点灯装置および照明装置 |
Country Status (4)
Country | Link |
---|---|
US (1) | US8492992B2 (ja) |
EP (1) | EP2330869A1 (ja) |
JP (1) | JP5641180B2 (ja) |
CN (1) | CN102026445B (ja) |
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-
2009
- 2009-09-18 JP JP2009216751A patent/JP5641180B2/ja active Active
-
2010
- 2010-09-16 CN CN201010286962.XA patent/CN102026445B/zh not_active Expired - Fee Related
- 2010-09-17 EP EP10177426A patent/EP2330869A1/en not_active Withdrawn
- 2010-09-17 US US12/885,053 patent/US8492992B2/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
CN102026445A (zh) | 2011-04-20 |
JP2011065922A (ja) | 2011-03-31 |
CN102026445B (zh) | 2014-02-12 |
US8492992B2 (en) | 2013-07-23 |
EP2330869A1 (en) | 2011-06-08 |
US20110068706A1 (en) | 2011-03-24 |
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