JP4496812B2 - Led式照明装置 - Google Patents
Led式照明装置 Download PDFInfo
- Publication number
- JP4496812B2 JP4496812B2 JP2004077531A JP2004077531A JP4496812B2 JP 4496812 B2 JP4496812 B2 JP 4496812B2 JP 2004077531 A JP2004077531 A JP 2004077531A JP 2004077531 A JP2004077531 A JP 2004077531A JP 4496812 B2 JP4496812 B2 JP 4496812B2
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- dimming
- led
- input
- control
- 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
Links
- 238000001514 detection method Methods 0.000 claims description 16
- 238000005286 illumination Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 3
- 238000009499 grossing Methods 0.000 description 2
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
Images
Classifications
-
- 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
Landscapes
- Circuit Arrangement For Electric Light Sources In General (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Description
大きく高めなければならない。一方、波高値制御の場合、特にLEDが高出力の場合には電圧に対する電流の変化が大きくなるので、制御が非常に困難となる。
Claims (2)
- LEDを点灯するための電源を入力する入力回路と;
前記入力回路から入力される電源の力率を改善する力率改善回路と;
前記入力回路に入力される電源に含まれた調光信号成分を識別する入力検出回路と;
前記力率改善回路の出力からLEDに供給する電流を得るものであって前記調光信号成分に基づき出力電圧を調整する定電圧回路と;
前記入力検出回路で識別した調光信号成分に基づいて調光比を判定し、調光比が所定値より高いときはPWM制御により前記LEDを点灯制御し所定値より低いときは波高値制御により前記LEDを点灯制御する点灯制御回路と;
を備えたことを特徴とするLED式照明装置。 - LEDを点灯するための電源を入力する入力回路と;
前記入力回路から入力される電源の力率を改善する力率改善回路と;
前記入力回路に入力される電源に含まれた調光信号成分を識別する入力検出回路と;
前記力率改善回路の出力からLEDに供給する電流を得るものであって前記調光信号成分に基づき出力電圧を調整する定電圧回路と;
前記入力検出回路で識別された調光信号成分、外部調光信号、調光ボリュームからの調光信号を切り替える切替回路と;
前記切替回路からの出力信号に基づいて調光比を判定し、調光比が所定値より高いときはPWM制御により前記LEDを点灯制御し所定値より低いときは波高値制御により前記LEDを点灯制御する点灯制御回路と;
を備えたことを特徴とするLED式照明装置。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004077531A JP4496812B2 (ja) | 2004-03-18 | 2004-03-18 | Led式照明装置 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004077531A JP4496812B2 (ja) | 2004-03-18 | 2004-03-18 | Led式照明装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2005267999A JP2005267999A (ja) | 2005-09-29 |
JP4496812B2 true JP4496812B2 (ja) | 2010-07-07 |
Family
ID=35092325
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2004077531A Expired - Fee Related JP4496812B2 (ja) | 2004-03-18 | 2004-03-18 | Led式照明装置 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP4496812B2 (ja) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101073498B1 (ko) | 2011-07-04 | 2011-10-17 | (주)우도 | 광고 간판용 엘이디 모듈 장치 |
KR101342245B1 (ko) * | 2012-10-18 | 2013-12-16 | 김남규 | Led 전원 공급 장치 및 그의 제어 방법 |
US9456486B2 (en) | 2010-03-18 | 2016-09-27 | Koninklijke Philips N.V. | Method and apparatus for increasing dimming range of solid state lighting fixtures |
Families Citing this family (24)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA2632385C (en) * | 2005-12-20 | 2015-02-24 | Tir Technology Lp | Method and apparatus for controlling current supplied to electronic devices |
JP4921812B2 (ja) * | 2006-03-01 | 2012-04-25 | パナソニック株式会社 | 照明用電源回路、及び照明器具 |
JP4943892B2 (ja) * | 2007-02-23 | 2012-05-30 | パナソニック株式会社 | 調光装置とそれを用いた照明器具 |
JP4943891B2 (ja) * | 2007-02-23 | 2012-05-30 | パナソニック株式会社 | 調光装置とそれを用いた照明器具 |
JP5054465B2 (ja) * | 2007-08-27 | 2012-10-24 | パナソニック株式会社 | 照明器具 |
JP4938601B2 (ja) * | 2007-09-11 | 2012-05-23 | セイコーNpc株式会社 | Led駆動回路 |
RU2482639C2 (ru) * | 2007-12-14 | 2013-05-20 | Конинклейке Филипс Электроникс Н.В. | Регулируемое светогенерирующее устройство |
KR101001241B1 (ko) | 2008-09-05 | 2010-12-17 | 서울반도체 주식회사 | 교류 led 조광장치 및 그에 의한 조광방법 |
KR100940042B1 (ko) | 2009-07-22 | 2010-02-04 | 주식회사 동운아나텍 | Led 조명 구동 장치 |
JP5399943B2 (ja) * | 2010-02-22 | 2014-01-29 | パナソニック株式会社 | Led点灯回路 |
KR101149797B1 (ko) * | 2010-03-16 | 2012-06-08 | 주식회사 에어텍시스템 | 교류 구동형 램프 조광 시스템 |
US8242766B2 (en) * | 2010-04-20 | 2012-08-14 | Power Integrations, Inc. | Dimming control for a switching power supply |
CN101813260B (zh) * | 2010-05-13 | 2013-01-02 | 江西省晶和照明有限公司 | Led灯具装置以及pwm直流电源控制电路 |
JP5043989B2 (ja) * | 2010-06-16 | 2012-10-10 | Tdkラムダ株式会社 | 発光素子駆動装置 |
JP5624427B2 (ja) | 2010-10-25 | 2014-11-12 | パナソニック株式会社 | 調光点灯装置及びそれを用いた照明装置 |
JP5760176B2 (ja) | 2011-03-23 | 2015-08-05 | パナソニックIpマネジメント株式会社 | 固体光源点灯装置およびそれを用いた照明器具と照明システム |
FR2976150B1 (fr) * | 2011-06-01 | 2013-06-14 | Thales Sa | Dispositif de commande de diodes electroluminescentes a tres grande dynamique de luminance pour ecran de visualisation |
JP6218164B2 (ja) * | 2012-07-06 | 2017-10-25 | シーシーエス株式会社 | 発光ダイオード照明装置 |
US9167217B2 (en) * | 2013-05-02 | 2015-10-20 | Microvision, Inc. | High efficiency laser modulation |
JP2015041430A (ja) * | 2013-08-20 | 2015-03-02 | パナソニックIpマネジメント株式会社 | 点灯装置及びそれを用いた照明器具 |
JP6667154B2 (ja) | 2015-07-09 | 2020-03-18 | パナソニックIpマネジメント株式会社 | 点灯装置、車両用照明装置、及びそれを用いた車両 |
JP7031604B2 (ja) * | 2016-11-29 | 2022-03-08 | 日本精機株式会社 | 光源駆動装置及びヘッドアップディスプレイ装置 |
JP6837218B2 (ja) * | 2017-01-30 | 2021-03-03 | パナソニックIpマネジメント株式会社 | 点灯装置、照明器具及び看板 |
JP6550513B2 (ja) * | 2018-08-09 | 2019-07-24 | ルネサスエレクトロニクス株式会社 | Led駆動方法およびled駆動装置 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0313695U (ja) * | 1989-06-24 | 1991-02-12 | ||
JPH1167471A (ja) * | 1997-08-26 | 1999-03-09 | Tec Corp | 照明装置 |
JP2002199708A (ja) * | 2000-12-22 | 2002-07-12 | Hitachi Ltd | Dc−dcコンバータ |
JP2003243713A (ja) * | 2002-02-19 | 2003-08-29 | Keyence Corp | Led照明用電源装置 |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AU2002360721A1 (en) * | 2001-12-19 | 2003-07-09 | Color Kinetics Incorporated | Controlled lighting methods and apparatus |
-
2004
- 2004-03-18 JP JP2004077531A patent/JP4496812B2/ja not_active Expired - Fee Related
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0313695U (ja) * | 1989-06-24 | 1991-02-12 | ||
JPH1167471A (ja) * | 1997-08-26 | 1999-03-09 | Tec Corp | 照明装置 |
JP2002199708A (ja) * | 2000-12-22 | 2002-07-12 | Hitachi Ltd | Dc−dcコンバータ |
JP2003243713A (ja) * | 2002-02-19 | 2003-08-29 | Keyence Corp | Led照明用電源装置 |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9456486B2 (en) | 2010-03-18 | 2016-09-27 | Koninklijke Philips N.V. | Method and apparatus for increasing dimming range of solid state lighting fixtures |
US9622315B2 (en) | 2010-03-18 | 2017-04-11 | Philips Lighting Holding B.V. | Method and apparatus for increasing dimming range of solid state lighting fixtures |
KR101073498B1 (ko) | 2011-07-04 | 2011-10-17 | (주)우도 | 광고 간판용 엘이디 모듈 장치 |
KR101342245B1 (ko) * | 2012-10-18 | 2013-12-16 | 김남규 | Led 전원 공급 장치 및 그의 제어 방법 |
Also Published As
Publication number | Publication date |
---|---|
JP2005267999A (ja) | 2005-09-29 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP4496812B2 (ja) | Led式照明装置 | |
JP4943892B2 (ja) | 調光装置とそれを用いた照明器具 | |
US8816597B2 (en) | LED driving circuit | |
US7843147B2 (en) | LED driver circuits and methods | |
US8816598B2 (en) | Circuit and method for driving a luminous means | |
JP5263503B2 (ja) | 発光ダイオード点灯装置 | |
JP2009026544A (ja) | Led用調光装置及びled照明装置 | |
JP5299722B2 (ja) | Led照明装置 | |
WO2006096638A3 (en) | Automotive high intensity discharge lamp ballast circuit | |
US8816604B2 (en) | Dimming control method and apparatus for LED light source | |
EP3157307B1 (en) | Alternating current-driven light emitting element lighting apparatus | |
TW201038129A (en) | Control circuit for light emitting element | |
JP2005129512A (ja) | Led照明装置及び照明システム | |
JP2014089844A (ja) | 電源装置および照明装置 | |
JP4995777B2 (ja) | Led用の点灯装置とledランプ、およびledの点灯方法 | |
JP2008047494A (ja) | 調光制御方法および調光制御装置および照明装置 | |
US7161306B2 (en) | Multi-phase input ballast with dimming and method therefor | |
JP2007294169A (ja) | Led照明装置 | |
WO2007049606A1 (ja) | Oled駆動装置及び該駆動装置を備える照明装置 | |
JP5562081B2 (ja) | Ledの調光方法及び調光装置 | |
JP6408646B2 (ja) | 照明装置 | |
JP2005268000A (ja) | Led式照明装置 | |
US9497810B1 (en) | Dimmable switching mode LED driving circuit without phase angle measurement | |
JP6148167B2 (ja) | 照明装置 | |
JP2013073827A (ja) | 照明機器の制御装置 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
A621 | Written request for application examination |
Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20070202 |
|
A977 | Report on retrieval |
Free format text: JAPANESE INTERMEDIATE CODE: A971007 Effective date: 20091119 |
|
A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20091124 |
|
A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20100119 |
|
TRDD | Decision of grant or rejection written | ||
A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20100323 |
|
A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 |
|
A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20100405 |
|
FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20130423 Year of fee payment: 3 |
|
R151 | Written notification of patent or utility model registration |
Ref document number: 4496812 Country of ref document: JP Free format text: JAPANESE INTERMEDIATE CODE: R151 |
|
FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20130423 Year of fee payment: 3 |
|
LAPS | Cancellation because of no payment of annual fees |