JP7016571B2 - Led照明装置 - Google Patents
Led照明装置 Download PDFInfo
- Publication number
- JP7016571B2 JP7016571B2 JP2017114034A JP2017114034A JP7016571B2 JP 7016571 B2 JP7016571 B2 JP 7016571B2 JP 2017114034 A JP2017114034 A JP 2017114034A JP 2017114034 A JP2017114034 A JP 2017114034A JP 7016571 B2 JP7016571 B2 JP 7016571B2
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- JP
- Japan
- Prior art keywords
- leds
- current
- power supply
- series
- supply unit
- 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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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D45/00—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces
- B01D45/04—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces by utilising inertia
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- Circuit Arrangement For Electric Light Sources In General (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
Description
2 電源部
5 マイコン
6 コンバータ
7 コンパレータ
21 商用電源
22 スイッチ
31 灯具
Claims (1)
- 複数の系列のLEDが互いに並列に接続された灯具と、この灯具内の各系列のLEDに同時に電力を供給してLEDを発光させる電源部とを備えたLED照明装置において、上記電源部内に、上記LEDの各系列に対して電流検知用の抵抗を直列に接続し、各抵抗の分圧を1個の検出点に集め、いずれかの系列のLEDに電流が減少する異常が生じた場合に、減少した電流分を補うため上記電源部の出力電圧が上昇することによって残りのいずれかの系統に流れる電流値が所定の電流値を超えると、その超えたことを、この検出点の電位が所定の基準電位よりも高くなることによって検知するものであって、上記電源部内に1個のコンパレータを設け、このコンパレータのマイナス側端子に上記検出点を接続し、プラス側端子に上記基準電位を入力し、かつ、上記コンパレータのプラス側端子に入力される基準電位を、上記灯具の機種に応じて変更することを特徴とするLED照明装置。
Priority Applications (1)
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JP2017114034A JP7016571B2 (ja) | 2017-06-09 | 2017-06-09 | Led照明装置 |
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JP2017114034A JP7016571B2 (ja) | 2017-06-09 | 2017-06-09 | Led照明装置 |
Publications (2)
Publication Number | Publication Date |
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JP2018206714A JP2018206714A (ja) | 2018-12-27 |
JP7016571B2 true JP7016571B2 (ja) | 2022-02-07 |
Family
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JP2017114034A Active JP7016571B2 (ja) | 2017-06-09 | 2017-06-09 | Led照明装置 |
Country Status (1)
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JP (1) | JP7016571B2 (ja) |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2004039288A (ja) | 2002-06-28 | 2004-02-05 | Matsushita Electric Works Ltd | 照明装置 |
JP2008130377A (ja) | 2006-11-21 | 2008-06-05 | Matsushita Electric Works Ltd | Led点灯回路およびそれを用いる照明器具 |
JP2009289897A (ja) | 2008-05-28 | 2009-12-10 | Toshiba Microelectronics Corp | Led駆動装置 |
JP2012038782A (ja) | 2010-08-03 | 2012-02-23 | Nikon Corp | 発光素子駆動回路、表示装置 |
-
2017
- 2017-06-09 JP JP2017114034A patent/JP7016571B2/ja active Active
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2004039288A (ja) | 2002-06-28 | 2004-02-05 | Matsushita Electric Works Ltd | 照明装置 |
JP2008130377A (ja) | 2006-11-21 | 2008-06-05 | Matsushita Electric Works Ltd | Led点灯回路およびそれを用いる照明器具 |
JP2009289897A (ja) | 2008-05-28 | 2009-12-10 | Toshiba Microelectronics Corp | Led駆動装置 |
JP2012038782A (ja) | 2010-08-03 | 2012-02-23 | Nikon Corp | 発光素子駆動回路、表示装置 |
Also Published As
Publication number | Publication date |
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JP2018206714A (ja) | 2018-12-27 |
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