JP7070113B2 - 光源点灯装置及び照明器具 - Google Patents
光源点灯装置及び照明器具 Download PDFInfo
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- JP7070113B2 JP7070113B2 JP2018108909A JP2018108909A JP7070113B2 JP 7070113 B2 JP7070113 B2 JP 7070113B2 JP 2018108909 A JP2018108909 A JP 2018108909A JP 2018108909 A JP2018108909 A JP 2018108909A JP 7070113 B2 JP7070113 B2 JP 7070113B2
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- light source
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- dimming
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Description
Claims (2)
- 光源を点灯させる出力電流を生成する電流生成部と、
外部から入力されるPWM信号に応じて前記電流生成部を制御して前記出力電流を段階的に不連続に変化させる制御回路とを備え、
前記PWM信号のON-Dutyは段階的に不連続に変化し、
前記制御回路は、前記PWM信号の1段階の変化に応じて前記出力電流を現在の電流値から次の電流値に変化させるときに前記出力電流の電流値を2段階以上で段階的に変化させることを特徴とする光源点灯装置。 - 請求項1に記載の光源点灯装置を備えることを特徴とする照明器具。
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JP2018108909A JP7070113B2 (ja) | 2018-06-06 | 2018-06-06 | 光源点灯装置及び照明器具 |
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JP2018108909A JP7070113B2 (ja) | 2018-06-06 | 2018-06-06 | 光源点灯装置及び照明器具 |
Publications (2)
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JP2019212535A JP2019212535A (ja) | 2019-12-12 |
JP7070113B2 true JP7070113B2 (ja) | 2022-05-18 |
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JP2018108909A Active JP7070113B2 (ja) | 2018-06-06 | 2018-06-06 | 光源点灯装置及び照明器具 |
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Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2008210537A (ja) | 2007-02-23 | 2008-09-11 | Matsushita Electric Works Ltd | 調光装置とそれを用いた照明器具 |
JP2010198760A (ja) | 2009-02-23 | 2010-09-09 | Panasonic Electric Works Co Ltd | Led調光点灯装置及びそれを用いたled照明器具 |
JP2011150878A (ja) | 2010-01-21 | 2011-08-04 | Toshiba Lighting & Technology Corp | Led点灯装置および照明装置 |
JP2012059662A (ja) | 2010-09-13 | 2012-03-22 | Panasonic Corp | 半導体発光素子の点灯装置およびそれを用いた照明器具 |
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- 2018-06-06 JP JP2018108909A patent/JP7070113B2/ja active Active
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2008210537A (ja) | 2007-02-23 | 2008-09-11 | Matsushita Electric Works Ltd | 調光装置とそれを用いた照明器具 |
JP2010198760A (ja) | 2009-02-23 | 2010-09-09 | Panasonic Electric Works Co Ltd | Led調光点灯装置及びそれを用いたled照明器具 |
JP2011150878A (ja) | 2010-01-21 | 2011-08-04 | Toshiba Lighting & Technology Corp | Led点灯装置および照明装置 |
JP2012059662A (ja) | 2010-09-13 | 2012-03-22 | Panasonic Corp | 半導体発光素子の点灯装置およびそれを用いた照明器具 |
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