FR3061401B1 - Dispositif et procede de pilotage de l'intensite d'eclairage de diodes electroluminescentes - Google Patents
Dispositif et procede de pilotage de l'intensite d'eclairage de diodes electroluminescentes Download PDFInfo
- Publication number
- FR3061401B1 FR3061401B1 FR1663216A FR1663216A FR3061401B1 FR 3061401 B1 FR3061401 B1 FR 3061401B1 FR 1663216 A FR1663216 A FR 1663216A FR 1663216 A FR1663216 A FR 1663216A FR 3061401 B1 FR3061401 B1 FR 3061401B1
- Authority
- FR
- France
- Prior art keywords
- lighting
- light
- controlling
- voltage
- control
- 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.)
- Active
Links
- 230000001276 controlling effect Effects 0.000 abstract 1
- 230000001105 regulatory effect Effects 0.000 abstract 1
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]
- H05B45/30—Driver circuits
- H05B45/395—Linear regulators
-
- 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
-
- 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
- H05B45/44—Details of LED load circuits with an active control inside an LED matrix
- H05B45/46—Details of LED load circuits with an active control inside an LED matrix having LEDs disposed in parallel lines
-
- 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
-
- 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)
- Lighting Device Outwards From Vehicle And Optical Signal (AREA)
Abstract
L'invention concerne un dispositif de pilotage d'au moins deux unités d'éclairage (110, 120) équipées chacune d'au moins une diode électroluminescente (111, 121), comportant : - un étage de régulation de tension (20) adapté à réguler une tension d'alimentation (Vbus) de chaque unité d'éclairage, et - pour chaque unité d'éclairage, un étage de régulation de courant (30, 40) qui comporte, d'une part, un transistor de commande (32, 42) adapté à commander l'intensité d'éclairage de chaque diode électrolum inescente de cette unité d'éclairage, et, d'autre part, un régulateur linéaire de courant (31, 41) adapté à commander le transistor de commande. Selon l'invention, il est prévu une unité d'acquisition (50) adaptée à acquérir une chute de tension (VCE32, VCE42) aux bornes de chaque transistor de commande, et l'étage de régulation de tension est adapté à délivrer aux unités d'éclairage une tension d'alimentation variable en fonction des chutes de tension acquises.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR1663216A FR3061401B1 (fr) | 2016-12-22 | 2016-12-22 | Dispositif et procede de pilotage de l'intensite d'eclairage de diodes electroluminescentes |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR1663216A FR3061401B1 (fr) | 2016-12-22 | 2016-12-22 | Dispositif et procede de pilotage de l'intensite d'eclairage de diodes electroluminescentes |
FR1663216 | 2016-12-22 |
Publications (2)
Publication Number | Publication Date |
---|---|
FR3061401A1 FR3061401A1 (fr) | 2018-06-29 |
FR3061401B1 true FR3061401B1 (fr) | 2020-10-16 |
Family
ID=58401787
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR1663216A Active FR3061401B1 (fr) | 2016-12-22 | 2016-12-22 | Dispositif et procede de pilotage de l'intensite d'eclairage de diodes electroluminescentes |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR3061401B1 (fr) |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4177022B2 (ja) * | 2002-05-07 | 2008-11-05 | ローム株式会社 | 発光素子駆動装置、及び発光素子を備えた電子機器 |
US8169161B2 (en) * | 2007-11-16 | 2012-05-01 | Allegro Microsystems, Inc. | Electronic circuits for driving series connected light emitting diode strings |
-
2016
- 2016-12-22 FR FR1663216A patent/FR3061401B1/fr active Active
Also Published As
Publication number | Publication date |
---|---|
FR3061401A1 (fr) | 2018-06-29 |
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PLFP | Fee payment |
Year of fee payment: 2 |
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PLSC | Publication of the preliminary search report |
Effective date: 20180629 |
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Year of fee payment: 5 |
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PLFP | Fee payment |
Year of fee payment: 6 |
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CA | Change of address |
Effective date: 20221014 |
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PLFP | Fee payment |
Year of fee payment: 7 |
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PLFP | Fee payment |
Year of fee payment: 8 |