JP2008537459A - Ledを駆動するための単一段のディジタル電力コンバータ - Google Patents
Ledを駆動するための単一段のディジタル電力コンバータ Download PDFInfo
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- JP2008537459A JP2008537459A JP2008503101A JP2008503101A JP2008537459A JP 2008537459 A JP2008537459 A JP 2008537459A JP 2008503101 A JP2008503101 A JP 2008503101A JP 2008503101 A JP2008503101 A JP 2008503101A JP 2008537459 A JP2008537459 A JP 2008537459A
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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
- H05B47/00—Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
- H05B47/20—Responsive to malfunctions or to light source life; for protection
- H05B47/25—Circuit arrangements for protecting against overcurrent
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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]
- H05B45/20—Controlling the colour of the light
-
- 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]
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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
- Y02B20/30—Semiconductor lamps, e.g. solid state lamps [SSL] light emitting diodes [LED] or organic LED [OLED]
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- Rectifiers (AREA)
- Circuit Arrangement For Electric Light Sources In General (AREA)
- Led Devices (AREA)
- Dc-Dc Converters (AREA)
Abstract
【選択図】図1
Description
vdc=|Vpk|sin ωt
デューティDは、ターンオン時間ton、スイッチング周波数fs=l/Tsで定義され、
Claims (18)
- 少なくとも1つの発光ダイオード(LED)を駆動する電力コンバータであって、
入力電力に対する力率補正(PFC)と、少なくとも1つのLEDに送られる電流の制御と、の両方を行うように動作可能な単一段を備えたことを特徴とする電力コンバータ。 - 前記単一段が、少なくとも1つのLEDに送られる電流を制御するためのディジタル制御と、過電流保護のためのアナログ制御とを使用する、請求項1に記載の電力コンバータ。
- 入力電力のための前記PFCが入力電力のAC電流とAC電圧とを同期させる、請求項1に記載の電力コンバータ。
- 入力電力のための前記PFCが全高調波歪(THD)を減少させる、請求項1に記載の電力コンバータ。
- 前記単一段が、全高調波歪(THD)を減少させるためのサインテーブルモジュールを備える、請求項1に記載の電力コンバータ。
- 前記単一段が入力電力のための同期状態を識別する手段を備えた、請求項1に記載の電力コンバータ。
- 入力電力がAC電圧成分を有し、同期状態を識別する前記手段は、AC入力成分がゼロ点を横切る少なくとも1つの場合を識別するように動作可能である、請求項6に記載の電力コンバータ。
- 前記単一段が、
デューティサイクルに基づいて電流が流れるところのスイッチと、
前記スイッチのデューティサイクルを制御するために前記スイッチに結合されたコントローラと、
を備えた請求項1に記載の電力コンバータ。 - 前記スイッチがターンオフされたときには、より多くの電流が少なくとも1つのLEDへ送られて、少なくとも1つのLEDをより明るくし、
前記スイッチがターンオンされたときには、より少ない電流が少なくとも1つのLEDへ送られて、少なくとも1つのLEDをより暗くする、
請求項8に記載の電力コンバータ。 - 入力電力を使用して少なくとも1つの発光ダイオード(LED)を駆動するための単一段電力コンバータであって、
入力電力に対して力率補正(PFC)を行う手段と、
少なくとも1つのLEDに送られる電流を制御するための手段と、
を備えたことを特徴とする単一段電力コンバータ。 - PFCを行う前記手段は、
入力電力に対する同期状態を識別するための抵抗器及びダイオードと、
入力電力の電流成分と電圧成分とを同期させるためのサインテーブルモジュールと、
を備えた請求項10に記載の単一段電力コンバータ。 - 電流を制御するための前記手段が、前記電力コンバータの1つの岐路に流れる電流の量を表す信号を発生するための電流感知装置を備えた、請求項10に記載の単一段電力コンバータ。
- デューティサイクルに基づいて電流が流れるスイッチを備え、前記制御手段が、デューティサイクルを制御するためにこのスイッチに結合される、請求項10に記載の単一段電力コンバータ。
- 前記スイッチがターンオフされたときには、より多くの電流が少なくとも1つのLEDへ送られて、少なくとも1つのLEDをより明るくし、
前記スイッチがターンオンされたときには、より少ない電流が少なくとも1つのLEDへ送られて、少なくとも1つのLEDをより暗くする、
請求項13に記載の単一段電力コンバータ。 - 前記制御手段が過電流保護を与える、請求項10に記載の単一段電力コンバータ。
- 前記制御手段が、少なくとも1つのLEDに送られる電流を制御するためのディジタル制御と、過電流保護のためのアナログ制御とを使用する、請求項15に記載の単一段電力コンバータ。
- 入力電力を使用して複数のグループの発光ダイオード(LED)を駆動するための電力コンバータであって、各グループのダイオードが同じ色である電力コンバータであって、
入力電力に対して力率補正(PFC)を与える手段と、
少なくとも1つのLEDへ送られる電流を制御するための手段と、
を備えたことを特徴とする電力コンバータ。 - 少なくとも1つの発光ダイオード(LED)を駆動するための単一段電力コンバータであって、
整流された交流(AC)入力電力を受け取るための入力端子と、
少なくとも1つのLEDへ駆動電流が与えられるところの出力端子と、
少なくとも1つのLEDへ送られる駆動電流を増加及び減少させるためにデューティサイクルに基づいて制御されるように動作可能であるスイッチと、
入力電力に対して力率補正(PFC)を行う手段であって、入力電力の同期状態を識別する手段を含むような手段と、
前記スイッチのデューティサイクルを調整することにより少なくとも1つのLEDへ送られる電流を制御するための手段であって、少なくとも1つのLEDへ流れ込む電流の量を表わす信号を発生するために前記スイッチに結合された電流感知装置を含むような手段と、
変成器の一次巻線に結合され、その一次巻線に流れる電流を制御するためのトランジスタと、
前記電力コンバータに流れる電流の量を表わす信号を発生するために前記トランジスタに結合された電流感知装置であって、前記電力コンバータの電流制御ループの一部分を形成する電流感知装置と、
前記電流制御ループのアナログ制御及び前記電力コンバータの電圧制御ループのディジタル制御を行うように動作可能なコントローラと、
を備えたことを特徴とする単一段電力コンバータ。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/086,955 US7378805B2 (en) | 2005-03-22 | 2005-03-22 | Single-stage digital power converter for driving LEDs |
PCT/US2006/010301 WO2006102355A2 (en) | 2005-03-22 | 2006-03-22 | Single-stage digital power converter for driving leds |
Publications (1)
Publication Number | Publication Date |
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JP2008537459A true JP2008537459A (ja) | 2008-09-11 |
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Application Number | Title | Priority Date | Filing Date |
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JP2008503101A Pending JP2008537459A (ja) | 2005-03-22 | 2006-03-22 | Ledを駆動するための単一段のディジタル電力コンバータ |
Country Status (6)
Country | Link |
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US (1) | US7378805B2 (ja) |
JP (1) | JP2008537459A (ja) |
KR (1) | KR101365924B1 (ja) |
CN (1) | CN101199239B (ja) |
TW (1) | TWI446833B (ja) |
WO (1) | WO2006102355A2 (ja) |
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JP2011019389A (ja) * | 2009-06-22 | 2011-01-27 | Richard Landry Gray | パワー改善方法及びその照明装置 |
JP2011151913A (ja) * | 2010-01-20 | 2011-08-04 | Mitsubishi Electric Corp | 電源回路及び照明装置 |
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JP2015527867A (ja) * | 2012-09-07 | 2015-09-17 | クゥアルコム・インコーポレイテッドQualcomm Incorporated | 電圧崩壊保護のための方法およびシステム |
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- 2006-03-22 KR KR1020077024213A patent/KR101365924B1/ko active IP Right Grant
- 2006-03-22 JP JP2008503101A patent/JP2008537459A/ja active Pending
- 2006-03-22 WO PCT/US2006/010301 patent/WO2006102355A2/en active Application Filing
- 2006-03-22 CN CN2006800174774A patent/CN101199239B/zh not_active Expired - Fee Related
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JP2009021241A (ja) * | 2007-07-11 | 2009-01-29 | Ind Technol Res Inst | 光源およびその駆動装置 |
JP2010170844A (ja) * | 2009-01-22 | 2010-08-05 | Panasonic Electric Works Co Ltd | 電源装置及びそれを用いた照明器具 |
JP2011019389A (ja) * | 2009-06-22 | 2011-01-27 | Richard Landry Gray | パワー改善方法及びその照明装置 |
US9048753B2 (en) | 2009-12-04 | 2015-06-02 | Murata Manufacturing Co., Ltd. | PFC converter including transformer |
JP2011151913A (ja) * | 2010-01-20 | 2011-08-04 | Mitsubishi Electric Corp | 電源回路及び照明装置 |
JP2012004054A (ja) * | 2010-06-21 | 2012-01-05 | Hitachi Ltd | 照明装置 |
JP2015527867A (ja) * | 2012-09-07 | 2015-09-17 | クゥアルコム・インコーポレイテッドQualcomm Incorporated | 電圧崩壊保護のための方法およびシステム |
WO2016122182A1 (ko) * | 2015-01-30 | 2016-08-04 | 주식회사 실리콘웍스 | 발광 다이오드 조명 장치의 제어 회로 및 제어 방법 |
US10271397B2 (en) | 2015-01-30 | 2019-04-23 | Silicon Works Co., Ltd. | Control circuit and method of LED lighting apparatus |
Also Published As
Publication number | Publication date |
---|---|
US7378805B2 (en) | 2008-05-27 |
KR20080002852A (ko) | 2008-01-04 |
TW200704284A (en) | 2007-01-16 |
WO2006102355A3 (en) | 2007-04-19 |
US20060214603A1 (en) | 2006-09-28 |
CN101199239A (zh) | 2008-06-11 |
WO2006102355A2 (en) | 2006-09-28 |
TWI446833B (zh) | 2014-07-21 |
CN101199239B (zh) | 2011-10-05 |
KR101365924B1 (ko) | 2014-02-20 |
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