JP6245952B2 - Led駆動回路及びled照明装置 - Google Patents
Led駆動回路及びled照明装置 Download PDFInfo
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- JP6245952B2 JP6245952B2 JP2013233725A JP2013233725A JP6245952B2 JP 6245952 B2 JP6245952 B2 JP 6245952B2 JP 2013233725 A JP2013233725 A JP 2013233725A JP 2013233725 A JP2013233725 A JP 2013233725A JP 6245952 B2 JP6245952 B2 JP 6245952B2
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- 230000007704 transition Effects 0.000 claims description 18
- 230000003111 delayed effect Effects 0.000 description 10
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- 230000008859 change Effects 0.000 description 3
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- 238000012827 research and development Methods 0.000 description 1
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- 230000001052 transient effect Effects 0.000 description 1
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- 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
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- Circuit Arrangement For Electric Light Sources In General (AREA)
Description
2 PWM生成部(A)
3 PWM生成部(B)
4、5 立下り遅延部
6、7 スイッチ
8 LED群(A)
9 LED群(B)
10 インバータ
Claims (3)
- 順方向に直列接続される複数のLEDからなる第1のLED群及び前記第1のLED群と異なる色度を有する順方向に直列接続される複数のLEDからなる第2のLED群への通電を交互に切り替え駆動して調色を行うLED駆動回路であって、
前記第1のLED群及び前記第2のLED群と定電流源との間にそれぞれON制御信号で通電し、OFF制御信号で通電停止になる第1のスイッチング素子及び第2のスイッチング素子が接続され、
前記ON制御信号の時間幅を変えられるパルス幅変調器からの出力信号が第1のOFF遷移遅延回路を通して前記第1のスイッチング素子に入力され、前記出力信号の反転信号が第2のOFF遷移遅延回路を通して前記第2のスイッチング素子に入力されることで、
第1のOFF遷移遅延回路を通した第1の制御信号のON期間の長さが同時期の第2のOFF遷移遅延回路を通した第2の制御信号のOFF期間よりも長くなるように、また、
第2のOFF遷移遅延回路を通した第2の制御信号のON期間の長さが同時期の第1のOFF遷移遅延回路を通した第1の制御信号のOFF期間よりも長くなるように構成されることを特徴とするLED駆動回路。 - 前記反転信号が、前記出力信号をインバータに通して得られることを特徴とする請求項1に記載のLED駆動回路。
- 請求項1又は2記載のLED駆動回路を備えることを特徴とする照明装置。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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JP2013233725A JP6245952B2 (ja) | 2013-11-12 | 2013-11-12 | Led駆動回路及びled照明装置 |
Applications Claiming Priority (1)
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JP2013233725A JP6245952B2 (ja) | 2013-11-12 | 2013-11-12 | Led駆動回路及びled照明装置 |
Publications (2)
Publication Number | Publication Date |
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JP2015095347A JP2015095347A (ja) | 2015-05-18 |
JP6245952B2 true JP6245952B2 (ja) | 2017-12-13 |
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JP2013233725A Active JP6245952B2 (ja) | 2013-11-12 | 2013-11-12 | Led駆動回路及びled照明装置 |
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Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9974700B2 (en) | 2013-03-15 | 2018-05-22 | The Procter & Gamble Company | Absorbent articles with nonwoven substrates having fibrils |
CN112804793A (zh) * | 2021-04-13 | 2021-05-14 | 深圳市安规科技有限公司 | 一种缓启动电路及led电源装置 |
US11090407B2 (en) | 2017-03-09 | 2021-08-17 | The Procter & Gamble Company | Thermoplastic polymeric materials with heat activatable compositions |
US11110013B2 (en) | 2014-09-10 | 2021-09-07 | The Procter & Gamble Company | Nonwoven webs with hydrophobic and hydrophilic layers |
US11129919B2 (en) | 2016-03-09 | 2021-09-28 | The Procter & Gamble Company | Absorbent article with activatable material |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP6507449B2 (ja) * | 2015-09-08 | 2019-05-08 | パナソニックIpマネジメント株式会社 | 点灯装置、照明装置、および照明器具 |
JP6677525B2 (ja) * | 2016-02-19 | 2020-04-08 | コイズミ照明株式会社 | 点灯装置および照明装置 |
JP6999100B2 (ja) * | 2016-10-13 | 2022-01-18 | 大光電機株式会社 | Led照明用電源装置及びled照明装置 |
JP7365866B2 (ja) * | 2018-12-10 | 2023-10-20 | 株式会社小糸製作所 | 灯具モジュール |
JP7274943B2 (ja) * | 2019-06-03 | 2023-05-17 | 新電元工業株式会社 | シーケンシャル発光装置、及び制御装置 |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5141874B2 (ja) * | 2007-06-28 | 2013-02-13 | 東芝ライテック株式会社 | 照明装置 |
JP2009032497A (ja) * | 2007-07-26 | 2009-02-12 | Denso Corp | バックライト制御装置 |
JP2010073645A (ja) * | 2008-09-22 | 2010-04-02 | Toshiba Lighting & Technology Corp | 発光ダイオード信号灯 |
US8907884B2 (en) * | 2010-01-06 | 2014-12-09 | Apple Inc. | LED backlight system |
-
2013
- 2013-11-12 JP JP2013233725A patent/JP6245952B2/ja active Active
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9974700B2 (en) | 2013-03-15 | 2018-05-22 | The Procter & Gamble Company | Absorbent articles with nonwoven substrates having fibrils |
US10016319B2 (en) | 2013-03-15 | 2018-07-10 | The Procter & Gamble Company | Absorbent articles with nonwoven substrates having fibrils |
US10993855B2 (en) | 2013-03-15 | 2021-05-04 | The Procter & Gamble Company | Absorbent articles with nonwoven substrates having fibrils |
US11110013B2 (en) | 2014-09-10 | 2021-09-07 | The Procter & Gamble Company | Nonwoven webs with hydrophobic and hydrophilic layers |
US11839531B2 (en) | 2014-09-10 | 2023-12-12 | The Procter And Gamble Company | Nonwoven webs with hydrophobic and hydrophilic layers |
US11129919B2 (en) | 2016-03-09 | 2021-09-28 | The Procter & Gamble Company | Absorbent article with activatable material |
US11090407B2 (en) | 2017-03-09 | 2021-08-17 | The Procter & Gamble Company | Thermoplastic polymeric materials with heat activatable compositions |
CN112804793A (zh) * | 2021-04-13 | 2021-05-14 | 深圳市安规科技有限公司 | 一种缓启动电路及led电源装置 |
CN112804793B (zh) * | 2021-04-13 | 2021-12-21 | 深圳市安规科技有限公司 | 一种缓启动电路及led电源装置 |
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JP2015095347A (ja) | 2015-05-18 |
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