JP6489473B2 - 電源装置及び照明装置 - Google Patents
電源装置及び照明装置 Download PDFInfo
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- JP6489473B2 JP6489473B2 JP2014253321A JP2014253321A JP6489473B2 JP 6489473 B2 JP6489473 B2 JP 6489473B2 JP 2014253321 A JP2014253321 A JP 2014253321A JP 2014253321 A JP2014253321 A JP 2014253321A JP 6489473 B2 JP6489473 B2 JP 6489473B2
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- Prior art keywords
- led light
- light source
- voltage
- circuit
- led
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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]
- H05B45/20—Controlling the colour of the light
- H05B45/24—Controlling the colour 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
- H05B45/37—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]
- H05B45/30—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
- 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]
- H05B45/38—Switched mode power supply [SMPS] using boost 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
- Y02B20/40—Control techniques providing energy savings, e.g. smart controller or presence detection
Description
2 電源装置
3 光源ユニット
22 第1降圧チョッパ回路(LED駆動回路)
23 第2降圧チョッパ回路(LED駆動回路)
26 第2制御回路(制御回路、電圧計測部)
31 第1LED光源(LED光源)
32 第2LED光源(LED光源)
LD1,LD2 発光ダイオード
R21〜R23 抵抗(電圧計測部)
R31〜R33 抵抗(電圧計測部)
Claims (4)
- 複数のLED光源の各々に接続される複数のLED駆動回路と、制御回路とを備え、
前記複数のLED光源の各々は複数の発光ダイオードの直列回路を備え、前記複数のLED光源のアノード側の一端が共通接続されており、
前記制御回路は、前記複数のLED駆動回路の各々が対応するLED光源に流す電流を制御するように構成され、
前記制御回路は、前記複数のLED光源のうち一部のLED光源を消灯させ、前記複数のLED光源のうち前記一部のLED光源以外のLED光源を点灯させる場合、前記一部のLED光源に、電流が流れ始めるしきい値電圧よりも低い電圧を印加させるように、前記一部のLED光源に対応したLED駆動回路の出力を制御するように構成されたことを特徴とする電源装置。 - 前記複数のLED光源の各々について両端電圧を計測する電圧計測部を備え、
前記複数のLED駆動回路の各々はチョッパ方式のコンバータ回路であり、
前記電圧計測部によって計測された、前記一部のLED光源の両端電圧が、前記しきい値電圧よりも低い発振開始電圧まで低下すると、前記制御回路は、前記一部のLED光源に対応する前記LED駆動回路に間欠的にチョッパ動作を行わせるように構成されたことを特徴とする請求項1記載の電源装置。 - 請求項1又は2に記載の電源装置と、
前記複数のLED駆動回路の各々に接続される複数のLED光源と、
前記複数のLED光源を保持する器具本体とを備えたことを特徴とする照明装置。 - 前記複数のLED光源は、発光色の色温度が互いに異なるように構成されたことを特徴とする請求項3に記載の照明装置。
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2014253321A JP6489473B2 (ja) | 2014-12-15 | 2014-12-15 | 電源装置及び照明装置 |
US14/878,113 US9609714B2 (en) | 2014-12-15 | 2015-10-08 | Power supply device and lighting device |
CN201510923147.2A CN105704889B (zh) | 2014-12-15 | 2015-12-14 | 电源设备和照明设备 |
DE102015121686.8A DE102015121686A1 (de) | 2014-12-15 | 2015-12-14 | Leistungsversorgungsvorrichtung und Beleuchtungsvorrichtung |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2014253321A JP6489473B2 (ja) | 2014-12-15 | 2014-12-15 | 電源装置及び照明装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2016115535A JP2016115535A (ja) | 2016-06-23 |
JP6489473B2 true JP6489473B2 (ja) | 2019-03-27 |
Family
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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JP2014253321A Active JP6489473B2 (ja) | 2014-12-15 | 2014-12-15 | 電源装置及び照明装置 |
Country Status (4)
Country | Link |
---|---|
US (1) | US9609714B2 (ja) |
JP (1) | JP6489473B2 (ja) |
CN (1) | CN105704889B (ja) |
DE (1) | DE102015121686A1 (ja) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP6593750B2 (ja) * | 2015-07-13 | 2019-10-23 | パナソニックIpマネジメント株式会社 | 照明制御装置、照明装置及び照明器具 |
US9854640B2 (en) * | 2015-11-02 | 2017-12-26 | Aleddra Inc. | Solid-state lighting control with dimmability and color temperature tunability using low voltage controller |
JP7086701B2 (ja) * | 2018-04-27 | 2022-06-20 | コイズミ照明株式会社 | 点灯装置、照明器具、および照明システム |
CN110536506B (zh) * | 2019-07-26 | 2021-04-02 | 浙江大华技术股份有限公司 | Led频闪爆闪电路 |
JP2022110534A (ja) * | 2021-01-18 | 2022-07-29 | Hapsモバイル株式会社 | 制御装置、プログラム、システム、及び制御方法 |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8274230B2 (en) * | 2010-03-26 | 2012-09-25 | Davinci Industrial Inc. | LED lamp apparatus and method for adjusting color temperature of LED module therein |
JP5725736B2 (ja) | 2010-06-11 | 2015-05-27 | 三菱電機株式会社 | Led電源装置及びled照明器具 |
JP5666268B2 (ja) * | 2010-11-26 | 2015-02-12 | ルネサスエレクトロニクス株式会社 | 半導体集積回路およびその動作方法 |
JP2012146577A (ja) * | 2011-01-13 | 2012-08-02 | Panasonic Corp | 間欠動作可否設定端子付きスイッチング電源制御用集積回路及びそれを用いた電源装置と半導体発光素子の点灯装置並びに照明器具 |
JP6131511B2 (ja) * | 2012-10-10 | 2017-05-24 | パナソニックIpマネジメント株式会社 | 点灯装置およびそれを用いた照明器具 |
CN203801106U (zh) * | 2014-01-08 | 2014-08-27 | 东莞巨扬电器有限公司 | 照明设备 |
-
2014
- 2014-12-15 JP JP2014253321A patent/JP6489473B2/ja active Active
-
2015
- 2015-10-08 US US14/878,113 patent/US9609714B2/en active Active
- 2015-12-14 DE DE102015121686.8A patent/DE102015121686A1/de not_active Withdrawn
- 2015-12-14 CN CN201510923147.2A patent/CN105704889B/zh active Active
Also Published As
Publication number | Publication date |
---|---|
CN105704889A (zh) | 2016-06-22 |
US9609714B2 (en) | 2017-03-28 |
US20160174316A1 (en) | 2016-06-16 |
DE102015121686A1 (de) | 2016-06-16 |
CN105704889B (zh) | 2019-10-11 |
JP2016115535A (ja) | 2016-06-23 |
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