JP5047029B2 - 調光装置 - Google Patents
調光装置 Download PDFInfo
- Publication number
- JP5047029B2 JP5047029B2 JP2008081873A JP2008081873A JP5047029B2 JP 5047029 B2 JP5047029 B2 JP 5047029B2 JP 2008081873 A JP2008081873 A JP 2008081873A JP 2008081873 A JP2008081873 A JP 2008081873A JP 5047029 B2 JP5047029 B2 JP 5047029B2
- Authority
- JP
- Japan
- Prior art keywords
- current
- dimming
- timing
- load
- period
- 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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Classifications
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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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- Led Devices (AREA)
- Circuit Arrangement For Electric Light Sources In General (AREA)
Description
2 交流電源
3 LED(照明負荷)
4、41,42,43,44 FET(スイッチング素子)
5 位相制御回路
6 調光レベル設定部(調光レベル設定手段)
7 ゼロクロス検出部(ゼロクロス検出手段)
8 電流オン検出部(電流オン検出手段)
9 タイマ(時間計測手段)
10 制御部
D2 ダイオード
R1 電流検出用抵抗
Claims (2)
- LEDを用いた照明負荷と、前記照明負荷と直列に接続されたスイッチング素子と、前記スイッチング素子のオン期間を可変とすることにより交流電源から前記照明負荷に供給される実効電力を可変とする位相制御回路と、を備えた調光装置であって、
前記位相制御回路は、
前記照明負荷の調光レベルに対応して前記スイッチング素子のオン期間を設定する調光レベル設定手段と、
前記交流電源からの入力電圧のゼロクロスを検出するゼロクロス検出手段と、
前記照明負荷に流れる電流のオンタイミングを検出する電流オン検出手段と、
前記ゼロクロス検出手段で検出されたゼロクロスと前記電流オン検出手段で検出されたオンタイミングとの時間差を計測する時間計測手段とを備え、
前記調光レベル設定手段は、前記時間計測手段により計測された時間差に応じて前記スイッチング素子のオン期間が設定され、電流のオンタイミングとなる位相角を最小の調光レベルとし、電流のオンタイミングとなる位相角を180度から減算した位相角を最大の調光レベルとし、
前記電流オン検出手段は、前記照明負荷と直列に配設されたダイオードのオン電圧を基にオンタイミングを検出することを特徴とする調光装置。 - 電流オンタイミングを検出している状態では、照明負荷への実効電力を漸増させながら供給することを特徴とする請求項1に記載の調光装置。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2008081873A JP5047029B2 (ja) | 2008-03-26 | 2008-03-26 | 調光装置 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2008081873A JP5047029B2 (ja) | 2008-03-26 | 2008-03-26 | 調光装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2009238520A JP2009238520A (ja) | 2009-10-15 |
JP5047029B2 true JP5047029B2 (ja) | 2012-10-10 |
Family
ID=41252220
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2008081873A Expired - Fee Related JP5047029B2 (ja) | 2008-03-26 | 2008-03-26 | 調光装置 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP5047029B2 (ja) |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8553439B2 (en) | 2010-02-09 | 2013-10-08 | Power Integrations, Inc. | Method and apparatus for determining zero-crossing of an AC input voltage to a power supply |
US8299730B2 (en) | 2010-02-09 | 2012-10-30 | Power Integrations, Inc. | Integrated on-time extension for non-dissipative bleeding in a power supply |
JP2014002867A (ja) | 2012-06-15 | 2014-01-09 | Panasonic Corp | 点灯装置及び照明器具 |
KR101326040B1 (ko) | 2013-07-16 | 2013-11-07 | (주)골든칩스 | 교류전원의 위상각 제어 통신을 이용한 led조명 제어 장치 및 방법 |
US10926062B2 (en) | 2015-07-20 | 2021-02-23 | Strataca Systems Limited | Ureteral and bladder catheters and methods of inducing negative pressure to increase renal perfusion |
CN112691278B (zh) | 2015-07-20 | 2024-03-22 | 罗维奥斯有限公司 | 输尿管和膀胱导管及引入负压以增加肾灌注的方法 |
US10918827B2 (en) | 2015-07-20 | 2021-02-16 | Strataca Systems Limited | Catheter device and method for inducing negative pressure in a patient's bladder |
US11040172B2 (en) | 2015-07-20 | 2021-06-22 | Strataca Systems Limited | Ureteral and bladder catheters and methods of inducing negative pressure to increase renal perfusion |
JP2017084623A (ja) * | 2015-10-28 | 2017-05-18 | パナソニックIpマネジメント株式会社 | 調光装置 |
CN110996467B (zh) * | 2019-12-31 | 2022-01-04 | 深圳市英可瑞直流技术有限公司 | 一种照明调光控制方法 |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS56128594A (en) * | 1980-03-13 | 1981-10-08 | Tokyo Shibaura Electric Co | Disconnected core detector for series firing circuit |
JP4305308B2 (ja) * | 2004-07-14 | 2009-07-29 | パナソニック電工株式会社 | 調光装置 |
JP4349225B2 (ja) * | 2004-07-14 | 2009-10-21 | パナソニック電工株式会社 | 調光装置 |
JP4375251B2 (ja) * | 2005-02-23 | 2009-12-02 | パナソニック電工株式会社 | 調光装置及び照明装置 |
JP4715547B2 (ja) * | 2006-02-23 | 2011-07-06 | パナソニック電工株式会社 | 照明用電源回路、照明装置、及び照明システム |
JP2009170240A (ja) * | 2008-01-16 | 2009-07-30 | Sharp Corp | Ledの調光装置 |
-
2008
- 2008-03-26 JP JP2008081873A patent/JP5047029B2/ja not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
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JP2009238520A (ja) | 2009-10-15 |
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