JP2011171230A - Led点灯回路 - Google Patents
Led点灯回路 Download PDFInfo
- Publication number
- JP2011171230A JP2011171230A JP2010036033A JP2010036033A JP2011171230A JP 2011171230 A JP2011171230 A JP 2011171230A JP 2010036033 A JP2010036033 A JP 2010036033A JP 2010036033 A JP2010036033 A JP 2010036033A JP 2011171230 A JP2011171230 A JP 2011171230A
- Authority
- JP
- Japan
- Prior art keywords
- voltage
- light source
- power supply
- led light
- led
- 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.)
- Granted
Links
- 239000003990 capacitor Substances 0.000 claims description 49
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
Images
Classifications
-
- 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]
- H05B45/50—Circuit arrangements for operating light-emitting diodes [LED] responsive to malfunctions or undesirable behaviour of LEDs; responsive to LED life; Protective circuits
-
- 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]
-
- 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]
- H05B45/375—Switched mode power supply [SMPS] using buck topology
-
- 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]
- H05B45/38—Switched mode power supply [SMPS] using boost 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)
- Led Devices (AREA)
Abstract
【解決手段】直流電圧V2を出力する力率改善回路PFCと、直流電圧V2を降圧して直流電圧V3を生成するDC/DCコンバータ1と、直流電圧V3によってLED電流が流れることで点灯するLED光源部2と、LED電流が一定となるように、スイッチング素子Q1を制御する制御部3と、制御部3を駆動するための直流電圧V5を生成する電源供給部4とを備え、電源供給部4およびLED光源部2は直列接続されており、LED光源部2は力率改善回路PFCの高電圧ラインに接続し、電源供給部4は力率改善回路PFCの低電圧ラインに接続し、少なくとも点灯時において、電源供給部4はLED光源部2を介して力率改善回路PFCから電源供給され、直流電圧V5を生成する。
【選択図】図1
Description
本発明の実施形態の概略回路構成図を図1に示す。本実施形態は、交流電源ACと、ダイオードブリッジDBと、DC/DCコンバータ1と、LED光源部2と、制御部3と、力率改善回路PFCと、電源供給部4とで構成されている。なお、従来例1と同様の構成には、同一符号を付して説明は省略する。
2 LED光源部
3 制御部
4 電源供給部
C1〜C3 コンデンサ
D1 ダイオード
L1 インダクタ
R1〜R5 抵抗
Q1 スイッチング素子
PFC 力率改善回路
DB ダイオードブリッジ
AC 交流電源
Claims (3)
- 第1の直流電圧を出力する直流電源と、
スイッチング素子およびコンデンサを有し、前記スイッチング素子がオン・オフされることによって前記第1の直流電圧を変換して第2の直流電圧を前記コンデンサの両端に生成するDC/DCコンバータと、
1つ以上の発光ダイオードで構成され、前記第2の直流電圧によってLED電流が流れることで点灯するLED光源部と、
前記DC/DCコンバータから前記LED光源部に供給される前記LED電流が一定となるように、前記スイッチング素子のオン・オフを制御する制御部と、
前記制御部を駆動するための駆動電源を供給する電源供給部とを備え、
前記電源供給部および前記LED光源部は直列接続されており、前記LED光源部は前記直流電源の高電圧ライン側に接続し、前記電源供給部は前記直流電源の低電圧ライン側に接続し、少なくとも点灯時において、前記電源供給部は前記LED光源部を介して前記直流電源から電源供給され、前記駆動電源を生成することを特徴とするLED点灯回路。 - 前記制御部は、集積回路で構成されることを特徴とする請求項1記載のLED点灯回路。
- 前記直流電源は、昇圧チョッパ回路で構成されることを特徴とする請求項1または2記載のLED点灯回路。
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2010036033A JP5796175B2 (ja) | 2010-02-22 | 2010-02-22 | Led点灯回路 |
EP11153894.8A EP2362712A3 (en) | 2010-02-22 | 2011-02-09 | Led Lighting Circuit |
US13/031,836 US8502463B2 (en) | 2010-02-22 | 2011-02-22 | LED driver circuit with open load detection and associated control method |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2010036033A JP5796175B2 (ja) | 2010-02-22 | 2010-02-22 | Led点灯回路 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2011171230A true JP2011171230A (ja) | 2011-09-01 |
JP5796175B2 JP5796175B2 (ja) | 2015-10-21 |
Family
ID=44148746
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2010036033A Expired - Fee Related JP5796175B2 (ja) | 2010-02-22 | 2010-02-22 | Led点灯回路 |
Country Status (3)
Country | Link |
---|---|
US (1) | US8502463B2 (ja) |
EP (1) | EP2362712A3 (ja) |
JP (1) | JP5796175B2 (ja) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20130069319A (ko) * | 2011-12-14 | 2013-06-26 | 엘지디스플레이 주식회사 | 발광 다이오드의 구동장치 및 구동방법, 및 이를 이용한 액정 표시 장치 |
JP2013134844A (ja) * | 2011-12-26 | 2013-07-08 | Mitsubishi Electric Corp | 光源点灯装置及び照明装置 |
US9232597B2 (en) | 2014-02-28 | 2016-01-05 | Panasonic Intellectual Property Management Co., Ltd. | Lighting device and lighting system with the same |
Families Citing this family (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2012157220A (ja) * | 2011-01-28 | 2012-08-16 | Sony Corp | 制御装置、制御方法および電源装置 |
CN102695339B (zh) * | 2012-05-22 | 2014-06-25 | 矽力杰半导体技术(杭州)有限公司 | 一种高效率、高功率因数的led驱动电路 |
JP5942320B2 (ja) * | 2012-07-30 | 2016-06-29 | パナソニックIpマネジメント株式会社 | 電源装置 |
US9386665B2 (en) | 2013-03-14 | 2016-07-05 | Honeywell International Inc. | System for integrated lighting control, configuration, and metric tracking from multiple locations |
US9474113B2 (en) | 2014-05-16 | 2016-10-18 | Enerton, Inc. | Dimmable universal voltage LED power supply with regenerating power source circuitry and non-isolated load |
US9591706B2 (en) | 2014-05-16 | 2017-03-07 | Enertron, Inc. | Universal voltage LED power supply with regenerating power source circuitry, non-isolated load, and 0-10V dimming circuit |
JP6410182B2 (ja) * | 2015-03-03 | 2018-10-24 | パナソニックIpマネジメント株式会社 | Led駆動装置、照明装置及び照明器具 |
JP6587054B2 (ja) * | 2015-06-19 | 2019-10-09 | パナソニックIpマネジメント株式会社 | 点灯装置及び照明器具 |
KR102456426B1 (ko) * | 2015-12-28 | 2022-10-20 | 엘지이노텍 주식회사 | Led 전압 구동 회로 |
US9900943B2 (en) | 2016-05-23 | 2018-02-20 | On-Bright Electronics (Shanghai) Co., Ltd. | Two-terminal integrated circuits with time-varying voltage-current characteristics including phased-locked power supplies |
CN105979626B (zh) * | 2016-05-23 | 2018-08-24 | 昂宝电子(上海)有限公司 | 包括锁相电源的具有时变电压电流特性的双端子集成电路 |
KR102471752B1 (ko) | 2017-09-21 | 2022-11-29 | 삼성전자주식회사 | 연산 증폭 회로, 그것을 포함하는 데이터 구동 회로, 및 그것들의 동작 방법 |
CN110446293A (zh) * | 2018-05-04 | 2019-11-12 | 台达电子工业股份有限公司 | 发光元件驱动装置及其驱动方法 |
EP4018787B1 (en) * | 2019-08-20 | 2023-10-11 | Signify Holding B.V. | A double ended retrofit light emitting diode, led, based lighting device for connection to a power source, which led based lighting device having an improved pin-safety circuit |
US11418125B2 (en) | 2019-10-25 | 2022-08-16 | The Research Foundation For The State University Of New York | Three phase bidirectional AC-DC converter with bipolar voltage fed resonant stages |
WO2024068277A1 (en) * | 2022-09-27 | 2024-04-04 | Signify Holding B.V. | Smps series regulator with energy recycle back to the source |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2001215913A (ja) * | 2000-02-04 | 2001-08-10 | Toko Inc | 点灯回路 |
JP2007115594A (ja) * | 2005-10-21 | 2007-05-10 | Matsushita Electric Ind Co Ltd | Led照明用アタッチメント |
JP2008278640A (ja) * | 2007-04-27 | 2008-11-13 | Toshiba Lighting & Technology Corp | 電源装置及び照明器具 |
JP2009080983A (ja) * | 2007-09-25 | 2009-04-16 | Panasonic Electric Works Co Ltd | 点灯装置、および照明器具 |
JP2009134946A (ja) * | 2007-11-29 | 2009-06-18 | Panasonic Electric Works Co Ltd | Led照明器具 |
JP2009302017A (ja) * | 2008-06-17 | 2009-12-24 | Toshiba Lighting & Technology Corp | 発光ダイオード点灯装置および照明装置 |
JP2010040878A (ja) * | 2008-08-06 | 2010-02-18 | Toshiba Lighting & Technology Corp | 発光ダイオード点灯装置 |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2008278641A (ja) | 2007-04-27 | 2008-11-13 | Toshiba Lighting & Technology Corp | 電源装置及び照明器具 |
US7550934B1 (en) * | 2008-04-02 | 2009-06-23 | Micrel, Inc. | LED driver with fast open circuit protection, short circuit compensation, and rapid brightness control response |
-
2010
- 2010-02-22 JP JP2010036033A patent/JP5796175B2/ja not_active Expired - Fee Related
-
2011
- 2011-02-09 EP EP11153894.8A patent/EP2362712A3/en not_active Ceased
- 2011-02-22 US US13/031,836 patent/US8502463B2/en active Active
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2001215913A (ja) * | 2000-02-04 | 2001-08-10 | Toko Inc | 点灯回路 |
JP2007115594A (ja) * | 2005-10-21 | 2007-05-10 | Matsushita Electric Ind Co Ltd | Led照明用アタッチメント |
JP2008278640A (ja) * | 2007-04-27 | 2008-11-13 | Toshiba Lighting & Technology Corp | 電源装置及び照明器具 |
JP2009080983A (ja) * | 2007-09-25 | 2009-04-16 | Panasonic Electric Works Co Ltd | 点灯装置、および照明器具 |
JP2009134946A (ja) * | 2007-11-29 | 2009-06-18 | Panasonic Electric Works Co Ltd | Led照明器具 |
JP2009302017A (ja) * | 2008-06-17 | 2009-12-24 | Toshiba Lighting & Technology Corp | 発光ダイオード点灯装置および照明装置 |
JP2010040878A (ja) * | 2008-08-06 | 2010-02-18 | Toshiba Lighting & Technology Corp | 発光ダイオード点灯装置 |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20130069319A (ko) * | 2011-12-14 | 2013-06-26 | 엘지디스플레이 주식회사 | 발광 다이오드의 구동장치 및 구동방법, 및 이를 이용한 액정 표시 장치 |
KR101956269B1 (ko) * | 2011-12-14 | 2019-03-08 | 엘지디스플레이 주식회사 | 발광 다이오드의 구동장치 및 구동방법, 및 이를 이용한 액정 표시 장치 |
JP2013134844A (ja) * | 2011-12-26 | 2013-07-08 | Mitsubishi Electric Corp | 光源点灯装置及び照明装置 |
US9232597B2 (en) | 2014-02-28 | 2016-01-05 | Panasonic Intellectual Property Management Co., Ltd. | Lighting device and lighting system with the same |
Also Published As
Publication number | Publication date |
---|---|
US8502463B2 (en) | 2013-08-06 |
US20110204823A1 (en) | 2011-08-25 |
JP5796175B2 (ja) | 2015-10-21 |
EP2362712A3 (en) | 2017-01-11 |
EP2362712A2 (en) | 2011-08-31 |
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