JP5007811B2 - 照明装置 - Google Patents
照明装置 Download PDFInfo
- Publication number
- JP5007811B2 JP5007811B2 JP2007145327A JP2007145327A JP5007811B2 JP 5007811 B2 JP5007811 B2 JP 5007811B2 JP 2007145327 A JP2007145327 A JP 2007145327A JP 2007145327 A JP2007145327 A JP 2007145327A JP 5007811 B2 JP5007811 B2 JP 5007811B2
- Authority
- JP
- Japan
- Prior art keywords
- light emitting
- current
- constant
- potential
- led
- 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.)
- Expired - Fee Related
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- Circuit Arrangement For Electric Light Sources In General (AREA)
- Led Devices (AREA)
Description
12 定電流電源
13 発光モジュール
14 バイアス回路
15 定電圧源
16 光源としてのLED
17 半導体スイッチとしてのトランジスタ
18 抵抗である電流検出抵抗
19 電流制御回路
Claims (1)
- 定電流電源と;
1つ以上の光源を備え、前記定電流電源に対して互いに並列に接続される複数の発光モジュールと;
前記各発光モジュールのそれぞれに直列に入力端子が接続され活性領域にて動作可能な半導体スイッチと、この半導体スイッチの出力端子に接続された抵抗とを備え、前記各発光モジュールの光源に流れる点灯電流を制御する電流制御回路と;
前記定電流電源に接続され、前記各半導体スイッチのそれぞれの制御端子に共通の一定バイアス電流を供給するバイアス回路と;
このバイアス回路に接続され、前記半導体スイッチの制御素子の電位を所定の電位以上に設定する定電圧源と;
を具備していることを特徴とした照明装置。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2007145327A JP5007811B2 (ja) | 2007-05-31 | 2007-05-31 | 照明装置 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2007145327A JP5007811B2 (ja) | 2007-05-31 | 2007-05-31 | 照明装置 |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2012091534A Division JP2012169282A (ja) | 2012-04-13 | 2012-04-13 | 照明装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2008300209A JP2008300209A (ja) | 2008-12-11 |
JP5007811B2 true JP5007811B2 (ja) | 2012-08-22 |
Family
ID=40173530
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2007145327A Expired - Fee Related JP5007811B2 (ja) | 2007-05-31 | 2007-05-31 | 照明装置 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP5007811B2 (ja) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5046791B2 (ja) * | 2007-05-17 | 2012-10-10 | セイコーNpc株式会社 | Led駆動回路 |
JP5396075B2 (ja) * | 2008-12-18 | 2014-01-22 | 株式会社小糸製作所 | 車両用灯具の制御装置 |
JP5017251B2 (ja) * | 2008-12-26 | 2012-09-05 | エーイーテック株式会社 | 保護回路及び照明装置 |
KR101592381B1 (ko) | 2010-01-06 | 2016-02-11 | 삼성디스플레이 주식회사 | 광원 구동 방법 및 이를 수행하기 위한 광원 장치 |
JP5603160B2 (ja) * | 2010-07-23 | 2014-10-08 | 株式会社小糸製作所 | 半導体光源点灯回路および制御方法 |
JP2012155893A (ja) * | 2011-01-24 | 2012-08-16 | Nec Lighting Ltd | 電源回路および照明装置 |
US9204513B2 (en) | 2012-10-22 | 2015-12-01 | Sharp Kabushiki Kaisha | Circuit, control program, and recording medium |
JP6971878B2 (ja) * | 2018-02-21 | 2021-11-24 | スタンレー電気株式会社 | 発光素子の点灯制御回路 |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6265799U (ja) * | 1985-10-14 | 1987-04-23 | ||
JP2004335109A (ja) * | 2003-03-20 | 2004-11-25 | Toshiba Lighting & Technology Corp | 高周波点灯装置および照明装置 |
JP4400880B2 (ja) * | 2004-10-05 | 2010-01-20 | 株式会社小糸製作所 | 車両用灯具の点灯制御回路 |
JP4657799B2 (ja) * | 2005-05-11 | 2011-03-23 | 株式会社リコー | 発光ダイオード駆動回路 |
KR100628721B1 (ko) * | 2005-06-22 | 2006-09-28 | 삼성전자주식회사 | 디스플레이장치 및 그 제어방법 |
-
2007
- 2007-05-31 JP JP2007145327A patent/JP5007811B2/ja not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
JP2008300209A (ja) | 2008-12-11 |
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