JP5809141B2 - Ledの調光レベルを制御するための方法及び装置 - Google Patents
Ledの調光レベルを制御するための方法及び装置 Download PDFInfo
- Publication number
- JP5809141B2 JP5809141B2 JP2012526154A JP2012526154A JP5809141B2 JP 5809141 B2 JP5809141 B2 JP 5809141B2 JP 2012526154 A JP2012526154 A JP 2012526154A JP 2012526154 A JP2012526154 A JP 2012526154A JP 5809141 B2 JP5809141 B2 JP 5809141B2
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- JP
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- Prior art keywords
- dimming
- led
- current
- circuit
- switch
- 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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- 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
- H05B31/00—Electric arc lamps
- H05B31/48—Electric arc lamps having more than two electrodes
- H05B31/50—Electric arc lamps having more than two electrodes specially adapted for ac
-
- 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]
- H05B45/10—Controlling the intensity 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]
- 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
- H05B45/395—Linear regulators
-
- 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
Claims (7)
- LEDのための調光回路であって、
調光入力を受信し、パルス幅変調(PWM)信号及び基準電圧を供給するように構成されたコントローラと、
出力電流を供給するように構成された電流コンバータと、
前記LEDと前記電流コンバータとの間に接続されたバックコンバータとを有し、
前記バックコンバータは、前記調光入力が閾値レベルよりも小さいときに非導通状態になる短絡スイッチを有する、調光回路。 - 前記短絡スイッチは、前記調光入力が前記閾値レベルよりも大きいときに導通状態になる、請求項1に記載の調光回路。
- 前記コントローラは、調光入力を受信し、前記PWM信号及び前記基準電圧を出力するように構成されたマイクロプロセッサを有する、請求項1に記載の調光回路。
- 前記コントローラは、前記PWM信号及び前記基準電圧に対する前記調光入力の相関を有するメモリを有する、請求項3に記載の調光回路。
- 前記コントローラは、調光入力を受信し、前記PWM信号及び前記基準電圧を出力するように構成されたプログラム可能論理回路(PLD)を有する、請求項1に記載の調光回路。
- 前記閾値レベルは、前記LEDに対する最大駆動電流の割合を示す値を有する、請求項1に記載の調光回路。
- 前記値は、最大電流レベルの約0%から約10%の範囲内にある、請求項6に記載の調光回路。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US23699809P | 2009-08-26 | 2009-08-26 | |
US61/236,998 | 2009-08-26 | ||
PCT/IB2010/053729 WO2011024101A1 (en) | 2009-08-26 | 2010-08-18 | METHOD AND APPARATUS FOR CONTROLLING DIMMING LEVELS OF LEDs |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2013503426A JP2013503426A (ja) | 2013-01-31 |
JP5809141B2 true JP5809141B2 (ja) | 2015-11-10 |
Family
ID=43500142
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2012526154A Active JP5809141B2 (ja) | 2009-08-26 | 2010-08-18 | Ledの調光レベルを制御するための方法及び装置 |
Country Status (10)
Country | Link |
---|---|
US (1) | US8629619B2 (ja) |
EP (1) | EP2471342B1 (ja) |
JP (1) | JP5809141B2 (ja) |
KR (1) | KR101806533B1 (ja) |
CN (1) | CN102484918B (ja) |
BR (1) | BR112012003850A2 (ja) |
CA (1) | CA2771975C (ja) |
RU (1) | RU2539317C2 (ja) |
TW (1) | TW201130379A (ja) |
WO (1) | WO2011024101A1 (ja) |
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2010
- 2010-07-12 TW TW099122876A patent/TW201130379A/zh unknown
- 2010-08-18 CA CA2771975A patent/CA2771975C/en active Active
- 2010-08-18 KR KR1020127007560A patent/KR101806533B1/ko active IP Right Grant
- 2010-08-18 WO PCT/IB2010/053729 patent/WO2011024101A1/en active Application Filing
- 2010-08-18 EP EP10754576.6A patent/EP2471342B1/en active Active
- 2010-08-18 CN CN201080038004.9A patent/CN102484918B/zh active Active
- 2010-08-18 JP JP2012526154A patent/JP5809141B2/ja active Active
- 2010-08-18 US US13/392,530 patent/US8629619B2/en active Active
- 2010-08-18 RU RU2012111342/07A patent/RU2539317C2/ru not_active IP Right Cessation
- 2010-08-18 BR BR112012003850-8A patent/BR112012003850A2/pt not_active Application Discontinuation
Also Published As
Publication number | Publication date |
---|---|
KR20120052401A (ko) | 2012-05-23 |
RU2539317C2 (ru) | 2015-01-20 |
CN102484918B (zh) | 2015-04-01 |
KR101806533B1 (ko) | 2017-12-07 |
CA2771975C (en) | 2017-12-12 |
US8629619B2 (en) | 2014-01-14 |
CN102484918A (zh) | 2012-05-30 |
EP2471342A1 (en) | 2012-07-04 |
TW201130379A (en) | 2011-09-01 |
WO2011024101A1 (en) | 2011-03-03 |
US20120194079A1 (en) | 2012-08-02 |
BR112012003850A2 (pt) | 2020-09-01 |
JP2013503426A (ja) | 2013-01-31 |
CA2771975A1 (en) | 2011-03-03 |
EP2471342B1 (en) | 2019-04-17 |
RU2012111342A (ru) | 2013-10-10 |
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