JP5810305B2 - 点灯装置及び照明器具 - Google Patents
点灯装置及び照明器具 Download PDFInfo
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- JP5810305B2 JP5810305B2 JP2011095034A JP2011095034A JP5810305B2 JP 5810305 B2 JP5810305 B2 JP 5810305B2 JP 2011095034 A JP2011095034 A JP 2011095034A JP 2011095034 A JP2011095034 A JP 2011095034A JP 5810305 B2 JP5810305 B2 JP 5810305B2
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- Japan
- Prior art keywords
- signal
- control
- control unit
- lighting device
- reference signal
- Prior art date
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
- H05B45/30—Driver circuits
- H05B45/37—Converter circuits
- H05B45/3725—Switched mode power supply [SMPS]
- H05B45/385—Switched mode power supply [SMPS] using flyback topology
-
- 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
- Y02B20/30—Semiconductor lamps, e.g. solid state lamps [SSL] light emitting diodes [LED] or organic LED [OLED]
Landscapes
- Circuit Arrangement For Electric Light Sources In General (AREA)
Description
2 光源
3 制御回路(調光制御回路)
4 直流電源
5 絶縁フライバック回路(点灯回路)
8 基準信号生成部
10 制御IC
11 駆動部
12 駆動制御部
C1 コンデンサ
LD1 固体発光素子
S1 制御信号
Claims (4)
- 直流電源からの入力をスイッチング素子によりスイッチングした後、平滑化して固体発光素子に出力する点灯回路と、調光レベルに応じたオンデューティのPWM信号からなる制御信号に基づいて、前記スイッチング素子のスイッチング動作を制御して前記固体発光素子への出力を調整する調光制御回路とを備え、
前記調光制御回路は、前記スイッチング素子をPWM制御する駆動制御部と、前記固体発光素子への出力に応じたフィードバック信号が入力され、基準信号に対する前記フィードバック信号の大きさと所定の閾値との高低に応じて、前記駆動制御部によるPWM制御に休止期間を設けるバースト制御部とを有し、
前記基準信号は、前記制御信号と同じ周期で徐々に上昇と下降とを繰り返す信号であり、
前記バースト制御部は、前記基準信号と前記フィードバック信号との差分が所定の閾値を上回る場合は前記駆動制御部によるPWM制御を休止させ、前記基準信号と前記フィードバック信号との差分が所定の閾値を下回る場合は前記駆動制御部によるPWM制御を行わせるように構成されたことを特徴とする点灯装置。 - 前記バースト制御部は、前記制御信号の周波数に応じた基準電位の前記基準信号を出力することを特徴とする請求項1記載の点灯装置。
- 前記制御信号の周波数の下限値を300Hzとし、前記制御信号の周波数の上限値を1000Hzとすることを特徴とする請求項2記載の点灯装置。
- 請求項1〜3の何れか一項に記載の点灯装置と、前記点灯装置によって点灯される固体発光素子とを備えることを特徴とする照明器具。
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2011095034A JP5810305B2 (ja) | 2011-04-21 | 2011-04-21 | 点灯装置及び照明器具 |
EP12002222.3A EP2515611B1 (en) | 2011-04-21 | 2012-03-28 | Lighting device and illumination apparatus |
CN201210088720.9A CN102752907B (zh) | 2011-04-21 | 2012-03-29 | 点亮设备和照明装置 |
US13/451,669 US8680775B2 (en) | 2011-04-21 | 2012-04-20 | Lighting driver circuit and light fixture |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2011095034A JP5810305B2 (ja) | 2011-04-21 | 2011-04-21 | 点灯装置及び照明器具 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2012227051A JP2012227051A (ja) | 2012-11-15 |
JP5810305B2 true JP5810305B2 (ja) | 2015-11-11 |
Family
ID=45936713
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2011095034A Active JP5810305B2 (ja) | 2011-04-21 | 2011-04-21 | 点灯装置及び照明器具 |
Country Status (4)
Country | Link |
---|---|
US (1) | US8680775B2 (ja) |
EP (1) | EP2515611B1 (ja) |
JP (1) | JP5810305B2 (ja) |
CN (1) | CN102752907B (ja) |
Families Citing this family (25)
Publication number | Priority date | Publication date | Assignee | Title |
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US9232591B2 (en) | 2008-12-12 | 2016-01-05 | O2Micro Inc. | Circuits and methods for driving light sources |
US9030122B2 (en) | 2008-12-12 | 2015-05-12 | O2Micro, Inc. | Circuits and methods for driving LED light sources |
US9386653B2 (en) | 2008-12-12 | 2016-07-05 | O2Micro Inc | Circuits and methods for driving light sources |
US9253843B2 (en) | 2008-12-12 | 2016-02-02 | 02Micro Inc | Driving circuit with dimming controller for driving light sources |
US8698419B2 (en) | 2010-03-04 | 2014-04-15 | O2Micro, Inc. | Circuits and methods for driving light sources |
CN103391006A (zh) | 2012-05-11 | 2013-11-13 | 凹凸电子(武汉)有限公司 | 光源驱动电路、控制电力转换器的控制器及方法 |
US8716955B2 (en) * | 2012-07-26 | 2014-05-06 | Linkcom Manufacturing Co., Ltd. | Constant current LED driver |
GB2506500B (en) * | 2012-09-28 | 2016-04-13 | O2 Micro Incorporated | Circuits and methods for driving light sources |
JP2014176295A (ja) * | 2013-03-11 | 2014-09-22 | Silicon Works Co Ltd | 照明装置 |
TWI532409B (zh) | 2013-05-03 | 2016-05-01 | 隆達電子股份有限公司 | 照明裝置與其發光二極體調光電路 |
JP6124708B2 (ja) | 2013-06-28 | 2017-05-10 | 株式会社ユーシン | 操作パネル |
CN104349529A (zh) * | 2013-07-26 | 2015-02-11 | 硕颉科技股份有限公司 | 发光二极管驱动装置及发光二极管驱动方法 |
JP6171754B2 (ja) * | 2013-09-09 | 2017-08-02 | 岩崎電気株式会社 | Led点灯装置及びled照明装置 |
CN105814972B (zh) | 2013-11-08 | 2018-03-20 | 卢特龙电子公司 | 发光二极管光源的负载控制装置 |
US9160239B2 (en) * | 2013-12-06 | 2015-10-13 | Shenzhen China Star Optoelectronics Technology Co., Ltd. | Flyback switching power supply circuit and backlight driving device using the same |
EP2887767B1 (en) | 2013-12-17 | 2018-02-14 | Silergy Corp. | Switching power supply controller |
CN105917740B (zh) * | 2014-01-17 | 2018-05-18 | 飞利浦照明控股有限公司 | Led驱动器和控制方法 |
EP2919558B1 (en) | 2014-03-13 | 2018-10-31 | Dialog Semiconductor (UK) Limited | Mains synchronized PWM dimming of lighting means |
US9906137B2 (en) * | 2014-09-23 | 2018-02-27 | Cree, Inc. | High power density, high efficiency power electronic converter |
US9565731B2 (en) | 2015-05-01 | 2017-02-07 | Lutron Electronics Co., Inc. | Load control device for a light-emitting diode light source |
CN109315036B (zh) | 2015-06-19 | 2021-04-27 | 路创技术有限责任公司 | 用于发光二极管光源的负载控制装置 |
CN106163012B (zh) * | 2016-08-26 | 2018-01-30 | 宁波赛耐比光电科技股份有限公司 | 一种带滞后功能的恒压调光控制电路 |
EP3513627B1 (en) | 2016-09-16 | 2022-09-07 | Lutron Technology Company LLC | Load control device for a light-emitting diode light source having different operating modes |
WO2020010621A1 (en) * | 2018-07-13 | 2020-01-16 | Tridonic Gmbh & Co Kg | Method and device of controlling dimmable driver, dimmable driver |
TWI718845B (zh) * | 2020-01-16 | 2021-02-11 | 立錡科技股份有限公司 | 調光器介面電路及其中之緩衝級電路 |
Family Cites Families (14)
Publication number | Priority date | Publication date | Assignee | Title |
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US7071762B2 (en) * | 2001-01-31 | 2006-07-04 | Koninklijke Philips Electronics N.V. | Supply assembly for a led lighting module |
JP4627320B2 (ja) * | 2005-11-22 | 2011-02-09 | ローム株式会社 | インバータおよびその制御回路、ならびにそれらを用いた発光装置および液晶テレビ |
TWI334259B (en) * | 2007-06-07 | 2010-12-01 | Young Green Energy Co | Power supply for relieving spikes |
CN101588664B (zh) * | 2008-05-21 | 2012-12-05 | 原景科技股份有限公司 | 发光二极管驱动电路及用以控制功率开关的电路 |
JP5184239B2 (ja) * | 2008-07-18 | 2013-04-17 | 旭化成エレクトロニクス株式会社 | 発光制御回路 |
JP2010050049A (ja) * | 2008-08-25 | 2010-03-04 | Panasonic Electric Works Co Ltd | 放電灯点灯装置及び照明器具 |
US8330388B2 (en) * | 2008-12-12 | 2012-12-11 | O2Micro, Inc. | Circuits and methods for driving light sources |
JP5415879B2 (ja) * | 2009-09-14 | 2014-02-12 | 旭化成エレクトロニクス株式会社 | Pwm調光回路 |
JP5502411B2 (ja) | 2009-09-25 | 2014-05-28 | パナソニック株式会社 | 点灯回路およびそれを備えた光源装置 |
US8466628B2 (en) * | 2009-10-07 | 2013-06-18 | Lutron Electronics Co., Inc. | Closed-loop load control circuit having a wide output range |
CN102238667B (zh) | 2010-05-07 | 2015-09-16 | 北京三星通信技术研究有限公司 | 一种建立基站间连接的方法 |
JP2012174509A (ja) * | 2011-02-22 | 2012-09-10 | Panasonic Corp | Led点灯装置、led点灯装置を備える照明器具 |
US8803437B2 (en) * | 2011-09-25 | 2014-08-12 | Wen-Hsiung Hsieh | Switching mode pulsed current supply for driving LEDS |
US9326333B2 (en) * | 2011-10-14 | 2016-04-26 | Infineon Technologies Americas Corp. | Flyback driver for use in a flyback power converter and related method |
-
2011
- 2011-04-21 JP JP2011095034A patent/JP5810305B2/ja active Active
-
2012
- 2012-03-28 EP EP12002222.3A patent/EP2515611B1/en not_active Not-in-force
- 2012-03-29 CN CN201210088720.9A patent/CN102752907B/zh not_active Expired - Fee Related
- 2012-04-20 US US13/451,669 patent/US8680775B2/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
EP2515611B1 (en) | 2015-03-18 |
US20120293087A1 (en) | 2012-11-22 |
US8680775B2 (en) | 2014-03-25 |
EP2515611A1 (en) | 2012-10-24 |
CN102752907B (zh) | 2014-09-03 |
JP2012227051A (ja) | 2012-11-15 |
CN102752907A (zh) | 2012-10-24 |
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