JP5122141B2 - 輝度および色調の調整を伴う共振型パワーled制御回路 - Google Patents
輝度および色調の調整を伴う共振型パワーled制御回路 Download PDFInfo
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- JP5122141B2 JP5122141B2 JP2006539036A JP2006539036A JP5122141B2 JP 5122141 B2 JP5122141 B2 JP 5122141B2 JP 2006539036 A JP2006539036 A JP 2006539036A JP 2006539036 A JP2006539036 A JP 2006539036A JP 5122141 B2 JP5122141 B2 JP 5122141B2
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- Prior art keywords
- led
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- control mechanism
- transformer
- color tone
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- 230000007246 mechanism Effects 0.000 claims description 29
- 239000003990 capacitor Substances 0.000 claims description 12
- 238000004804 winding Methods 0.000 claims description 10
- 230000003287 optical effect Effects 0.000 claims description 4
- 230000008878 coupling Effects 0.000 claims description 3
- 238000010168 coupling process Methods 0.000 claims description 3
- 238000005859 coupling reaction Methods 0.000 claims description 3
- 238000003491 array Methods 0.000 claims description 2
- 235000019646 color tone Nutrition 0.000 description 11
- 230000002265 prevention Effects 0.000 description 11
- 238000010586 diagram Methods 0.000 description 4
- 239000003086 colorant Substances 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 2
- 230000032683 aging Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
Images
Classifications
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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]
- 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
-
- 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]
- H05B45/40—Details of LED load circuits
- H05B45/42—Antiparallel configurations
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
- F21Y2115/00—Light-generating elements of semiconductor light sources
- F21Y2115/10—Light-emitting diodes [LED]
-
- 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)
Description
2 DC/AC変換器
3 変圧器
4 LED
41 LED
42 LED
43 LED
5 逆流防止ダイオード
6 フィルタコンデンサ
21 制御機構
22 トランジスタ
23 トランジスタ
31 端子
32 端子
33 中間タップ
51 逆流防止ダイオード
52 逆流防止ダイオード
61 フィルタコンデンサ
62 フィルタコンデンサ
L2a インダクタンス
L2b インダクタンス
Claims (14)
- 変圧器の一次側に接続されている共振コンデンサへの電圧を供給するハーフブリッジまたはフルブリッジ型のDC/AC変換器を有しており、第1のLED及び第2のLED、又は第1のLED群及び第2のLED群を駆動するための単一の共振型変換器であって、
前記第1のLED及び前記第2のLED、又は前記第1のLED群及び前記第2のLED群は、順に連続して電力供給を受けるように前記変圧器の二次側に接続されており、前記第1のLED又は前記第1のLED群は、前記変圧器の二次側の電流の第1の半波において電力供給を受け、前記第2のLED又は前記第2のLED群は、前記変圧器の二次側の電流の第2の半波において電力供給を受けており、
前記DC/AC変換器が、前記電圧のデューティサイクル及び周波数の調整によって、前記第1のLED及び前記第2のLED、又は前記第1のLED群及び前記第2のLED群を流れる電流を独立に制御する制御ユニットを有している、
単一の共振型変換器を有する共振型パワーLED制御機構。 - 前記LED又は前記LED群により発せられた光が、前記制御ユニットのための入力値を形成することを特徴とする請求項1記載の共振型パワーLED制御機構。
- 前記入力値を表す入力信号が、光結合により実現され、該光結合を介して、前記LED又は前記LED群により発せられた光の測定された出力電流が、前記DC/AC変換器にフィードバックされることを特徴とする請求項2記載の共振型パワーLED制御機構。
- 複数のLEDが組み合わされて、各時点において直列接続されるアレイの群とされていることを特徴とする請求項1から3いずれか1項記載の共振型パワーLED制御機構。
- 前記LEDの電圧供給が、前記変圧器の二次側を通じて行われることを特徴とする請求項1から4いずれか1項記載の共振型パワーLED制御機構。
- 前記変圧器は、前記LED又は前記LED群が互いに逆平行に接続された二次巻線を有していることを特徴とする請求項1から5いずれか1項記載の共振型パワーLED制御機構。
- 前記変圧器は、前記LED又は前記LED群が順に連続して電力供給を受けるように該LED又は該LED群が接続された、2つの二次巻線を有していることを特徴とする請求項1から5いずれか1項記載の共振型パワーLED制御機構。
- 前記変圧器は、二次側において中間タップを有しており、該中間タップに、前記LED又は前記LED群の共通陽極または共通陰極が接続されていることを特徴とする請求項7記載の共振型パワーLED制御機構。
- 副光源としての役割を果たす前記LED又は前記LED群の前記共通陰極または前記共通陽極と、前記中間タップとの間に、主光源として、さらなるLEDが接続されていることを特徴とする請求項8記載の共振型パワーLED制御機構。
- 前記副光源としての前記LED又は前記LED群のうちの一方に代えて、スイッチングダイオードが用いられていることを特徴とする請求項9記載の共振型パワーLED制御機構。
- 前記第1のLED又は前記第1のLED群の色調が白色であり、前記第2のLED又は前記第2のLED群の色調が黄色/橙色であることを特徴とする請求項6から8いずれか1項記載の共振型パワーLED制御機構。
- 前記副光源としての前記第1のLED又は前記第1のLED群の色調が緑色であり、前記副光源としての前記第2のLED又は前記第2のLED群の色調が青色/シアンであり、前記主光源としての前記LEDの色調が赤色であることを特徴とする請求項9記載の共振型パワーLED制御機構。
- 前記副光源としての前記LED又は前記LED群の色調がシアン/青色であり、前記主光源としての前記LEDの色調が黄色/橙色であることを特徴とする請求項10記載の共振型パワーLED制御機構。
- 前記LED又は前記LED群が、フィルタコンデンサに接続されていることを特徴とする請求項1から13いずれか1項記載の共振型パワーLED制御機構。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP03104184 | 2003-11-13 | ||
EP03104184.1 | 2003-11-13 | ||
PCT/IB2004/052320 WO2005048658A1 (en) | 2003-11-13 | 2004-11-05 | Resonant power led control circuit with brightness and colour control |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2007511903A JP2007511903A (ja) | 2007-05-10 |
JP5122141B2 true JP5122141B2 (ja) | 2013-01-16 |
Family
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2006539036A Expired - Fee Related JP5122141B2 (ja) | 2003-11-13 | 2004-11-05 | 輝度および色調の調整を伴う共振型パワーled制御回路 |
Country Status (7)
Country | Link |
---|---|
US (1) | US7573729B2 (ja) |
EP (1) | EP1685745B1 (ja) |
JP (1) | JP5122141B2 (ja) |
KR (1) | KR101177086B1 (ja) |
CN (1) | CN1879453B (ja) |
TW (1) | TWI393112B (ja) |
WO (1) | WO2005048658A1 (ja) |
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- 2004-11-05 EP EP04799073.4A patent/EP1685745B1/en not_active Not-in-force
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WO2005048658A1 (en) | 2005-05-26 |
EP1685745B1 (en) | 2013-05-01 |
EP1685745A1 (en) | 2006-08-02 |
KR20060115874A (ko) | 2006-11-10 |
TWI393112B (zh) | 2013-04-11 |
JP2007511903A (ja) | 2007-05-10 |
US7573729B2 (en) | 2009-08-11 |
US20070080652A1 (en) | 2007-04-12 |
CN1879453A (zh) | 2006-12-13 |
TW200521954A (en) | 2005-07-01 |
CN1879453B (zh) | 2010-06-23 |
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