JP2008522211A - Led動作の方法及び駆動回路 - Google Patents
Led動作の方法及び駆動回路 Download PDFInfo
- Publication number
- JP2008522211A JP2008522211A JP2007542483A JP2007542483A JP2008522211A JP 2008522211 A JP2008522211 A JP 2008522211A JP 2007542483 A JP2007542483 A JP 2007542483A JP 2007542483 A JP2007542483 A JP 2007542483A JP 2008522211 A JP2008522211 A JP 2008522211A
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- JP
- Japan
- Prior art keywords
- voltage
- drive circuit
- secondary winding
- circuit
- current
- 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
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M3/00—Conversion of dc power input into dc power output
- H02M3/22—Conversion of dc power input into dc power output with intermediate conversion into ac
- H02M3/24—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters
- H02M3/28—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac
- H02M3/325—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal
- H02M3/335—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only
- H02M3/338—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only in a self-oscillating arrangement
- H02M3/3382—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only in a self-oscillating arrangement in a push-pull circuit arrangement
-
- 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]
- H05B45/382—Switched mode power supply [SMPS] with galvanic isolation between input and output
-
- 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]
- H05B45/39—Circuits containing inverter bridges
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Dc-Dc Converters (AREA)
- Led Devices (AREA)
- Circuit Arrangement For Electric Light Sources In General (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
Abstract
Description
Claims (12)
- 発光ダイオード動作方法であって、前記方法は:
−交流供給電流を生成する段階;
−前記交流供給電流を交流負荷電圧へ変換する段階;
−交流2次巻線電圧を整流する段階;
−実質的に一定の負荷電流を生成するため、前記整流された交流2次巻線電圧をバッファリングする段階;及び
−前記実質的に一定の負荷電流をLEDへ供給する段階、を有する、方法。 - 前記交流供給電流を生成する段階は、
−DC電圧を提供する段階;
−前記DC電圧を前記交流供給電流へ変換する段階、を有する、請求項1記載の方法。 - 前記交流供給電流を生成する段階は、前記交流供給電流の周波数を制御する段階、を有する、請求項2記載の方法。
- 前記DC電圧を変換する段階は、前記交流供給電流のデューティーサイクルを50%になるよう制御する段階、を有する、請求項3記載の方法。
- 発光ダイオードを動作する駆動回路であって、前記駆動回路は、LEDへ供給されるべき電流を制御するよう構成され、前記駆動回路は:
−供給電圧を受信する入力端子のセット;
−共振キャパシター;
−変圧器の1次巻線及び前記共振キャパシターは前記入力端子のセットと直列に結合される、前記変圧器;
−前記変圧器の2次巻線と結合され、前記変圧器の2次巻線の交流負荷電圧を整流する整流器手段;
−前記整流器手段と結合され、整流電圧を受信する出力回路、を有し、前記出力回路はバッファー回路とLEDを前記駆動回路と結合する出力端子のセットとを有する、駆動回路。 - 前記変圧器の2次巻線は、第1のコイル及び第2のコイルを有する、請求項5記載の駆動回路。
- 前記2次巻線は、分割された巻線である、請求項6記載の駆動回路。
- 前記整流器手段は、第1のダイオード及び第2のダイオードを有し、各ダイオードは前記2次巻線の対応するコイルと結合される、請求項6記載の駆動回路。
- 前記整流器手段は、第1のスイッチ及び第2のスイッチを有し、各スイッチは前記2次巻線の対応するコイルと結合されており、そして第1及び第2のスイッチは前記交流2次巻線電圧を整流するよう構成される、請求項6記載の駆動回路。
- 前記駆動回路は、前記入力端子のセットと結合されたブリッジ回路を有し、前記ブリッジ回路は、DC電圧を受信するブリッジ入力端子を有し、及び前記ブリッジ回路は、前記交流供給電流を生成するために前記供給電圧を生成するよう構成される、請求項5記載の駆動回路。
- 前記駆動回路は、LED制御信号を受信する制御入力端子を有し、及び前記交流供給電流のデューティーサイクル及び周波数の少なくとも1つを制御するために前記LED制御信号に応じて前記ブリッジ回路を制御する、請求項10記載の駆動回路。
- 前記バッファー回路は、前記出力端子のセットと直列に接続されたインダクターを有する、請求項5記載の駆動回路。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP04106148 | 2004-11-29 | ||
EP05106054 | 2005-07-04 | ||
PCT/IB2005/053906 WO2006056960A1 (en) | 2004-11-29 | 2005-11-25 | Method and a driver circuit for led operation |
Publications (1)
Publication Number | Publication Date |
---|---|
JP2008522211A true JP2008522211A (ja) | 2008-06-26 |
Family
ID=35788091
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2007542483A Pending JP2008522211A (ja) | 2004-11-29 | 2005-11-25 | Led動作の方法及び駆動回路 |
Country Status (5)
Country | Link |
---|---|
US (1) | US8063577B2 (ja) |
EP (1) | EP1820371A1 (ja) |
JP (1) | JP2008522211A (ja) |
CN (1) | CN101065994B (ja) |
WO (1) | WO2006056960A1 (ja) |
Families Citing this family (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5830224B2 (ja) | 2007-02-26 | 2015-12-09 | コーニンクレッカ フィリップス エヌ ヴェKoninklijke Philips N.V. | 照明装置の駆動 |
WO2008110978A1 (en) * | 2007-03-13 | 2008-09-18 | Philips Intellectual Property & Standards Gmbh | Supply circuit |
WO2008149275A1 (en) * | 2007-06-06 | 2008-12-11 | Koninklijke Philips Electronics N.V. | Driver device for driving a plurality of leds |
US8063582B2 (en) * | 2008-01-14 | 2011-11-22 | Tai-Her Yang | Uni-directional light emitting diode drvie circuit in bi-directional divided power impedance |
EP2086288A1 (en) | 2008-02-01 | 2009-08-05 | STMicroelectronics S.r.l. | Power supply of luminous sources |
KR100864905B1 (ko) * | 2008-04-18 | 2008-10-22 | 삼성전기주식회사 | 램프 구동 회로 |
KR101549040B1 (ko) * | 2008-07-11 | 2015-09-01 | 삼성전자 주식회사 | 백라이트 어셈블리, 이를 포함하는 디스플레이장치 및 그제어방법 |
TWI399122B (zh) * | 2008-08-20 | 2013-06-11 | Univ Nat Sun Yat Sen | 單級具零電壓切換之led驅動電路 |
US8330389B2 (en) * | 2008-12-31 | 2012-12-11 | Stmicroelectronics S.R.L. | Switching power supply system for optical sources or a load requiring a controlled supply current |
KR101733404B1 (ko) | 2009-02-26 | 2017-07-21 | 필립스 라이팅 홀딩 비.브이. | 광원에 펄스형 전력을 공급하기 위한 컨버터 |
JP5719342B2 (ja) * | 2009-03-24 | 2015-05-20 | コーニンクレッカ フィリップス エヌ ヴェ | 遠隔制御信号受信器を有する発光デバイスシステム、及びドライバ |
US8704454B2 (en) * | 2009-10-13 | 2014-04-22 | National Semiconductor Corporation | Integrated driver system architecture for light emitting diodes (LEDs) |
CN101925222B (zh) * | 2010-01-12 | 2013-10-09 | 海洋王照明科技股份有限公司 | 一种应用于led驱动装置的功率输出电路 |
US20120013479A1 (en) * | 2010-07-16 | 2012-01-19 | Lien Chang Electronic Enterprise Co., Ltd. | Led system and driving device with error detection, and error detection module thereof |
DE102011007261A1 (de) | 2011-04-13 | 2012-10-18 | Continental Automotive Gmbh | Wandlereinrichtung |
US10801714B1 (en) | 2019-10-03 | 2020-10-13 | CarJamz, Inc. | Lighting device |
Citations (6)
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---|---|---|---|---|
JPS61207169A (ja) * | 1985-03-08 | 1986-09-13 | Hitachi Ltd | スイツチングレギユレ−タ |
JPH10229673A (ja) * | 1997-02-17 | 1998-08-25 | Tdk Corp | スイッチング電源 |
JP2000333447A (ja) * | 1999-05-17 | 2000-11-30 | Nec Corp | 圧電トランスコンバータの過電流保護方式 |
JP2001501362A (ja) * | 1997-08-01 | 2001-01-30 | コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ | 全波整流手段を具える多共振直流―直流変換器 |
JP2001178126A (ja) * | 1999-12-09 | 2001-06-29 | Tdk Corp | スイッチング電源 |
JP2003189622A (ja) * | 2001-12-19 | 2003-07-04 | Shindengen Electric Mfg Co Ltd | スイッチング電源装置 |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10025821A1 (de) | 2000-05-25 | 2002-07-25 | Sickinger Monika | Led-Lichtquelle |
JP2001359279A (ja) * | 2000-06-12 | 2001-12-26 | Sony Corp | ブリッジ型dc−dcコンバータ |
US6411045B1 (en) | 2000-12-14 | 2002-06-25 | General Electric Company | Light emitting diode power supply |
EP1257048B1 (de) * | 2001-05-09 | 2017-10-04 | Philips Lighting Holding B.V. | Regelvorrichtung für einen resonanten Konverter |
US6577512B2 (en) | 2001-05-25 | 2003-06-10 | Koninklijke Philips Electronics N.V. | Power supply for LEDs |
US7178971B2 (en) * | 2001-12-14 | 2007-02-20 | The University Of Hong Kong | High efficiency driver for color light emitting diodes (LED) |
US6784624B2 (en) * | 2001-12-19 | 2004-08-31 | Nicholas Buonocunto | Electronic ballast system having emergency lighting provisions |
US6975098B2 (en) * | 2002-01-31 | 2005-12-13 | Vlt, Inc. | Factorized power architecture with point of load sine amplitude converters |
JP4236894B2 (ja) | 2002-10-08 | 2009-03-11 | 株式会社小糸製作所 | 点灯回路 |
JP2004222485A (ja) * | 2002-12-27 | 2004-08-05 | Sony Corp | スイッチング電源回路 |
JP5122141B2 (ja) * | 2003-11-13 | 2013-01-16 | コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ | 輝度および色調の調整を伴う共振型パワーled制御回路 |
-
2005
- 2005-11-25 WO PCT/IB2005/053906 patent/WO2006056960A1/en active Application Filing
- 2005-11-25 JP JP2007542483A patent/JP2008522211A/ja active Pending
- 2005-11-25 US US11/719,888 patent/US8063577B2/en active Active
- 2005-11-25 CN CN200580040824.0A patent/CN101065994B/zh not_active Expired - Fee Related
- 2005-11-25 EP EP05819050A patent/EP1820371A1/en not_active Ceased
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61207169A (ja) * | 1985-03-08 | 1986-09-13 | Hitachi Ltd | スイツチングレギユレ−タ |
JPH10229673A (ja) * | 1997-02-17 | 1998-08-25 | Tdk Corp | スイッチング電源 |
JP2001501362A (ja) * | 1997-08-01 | 2001-01-30 | コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ | 全波整流手段を具える多共振直流―直流変換器 |
JP2000333447A (ja) * | 1999-05-17 | 2000-11-30 | Nec Corp | 圧電トランスコンバータの過電流保護方式 |
JP2001178126A (ja) * | 1999-12-09 | 2001-06-29 | Tdk Corp | スイッチング電源 |
JP2003189622A (ja) * | 2001-12-19 | 2003-07-04 | Shindengen Electric Mfg Co Ltd | スイッチング電源装置 |
Also Published As
Publication number | Publication date |
---|---|
CN101065994A (zh) | 2007-10-31 |
WO2006056960A1 (en) | 2006-06-01 |
EP1820371A1 (en) | 2007-08-22 |
CN101065994B (zh) | 2014-04-02 |
US20090230875A1 (en) | 2009-09-17 |
US8063577B2 (en) | 2011-11-22 |
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