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 PDF

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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
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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
Application number
FR1663216A
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English (en)
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FR3061401A1 (fr
Inventor
Thomas Delville
Habibi Abdelhak El
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Renault SAS
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Renault SAS
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Publication date
Application filed by Renault SAS filed Critical Renault SAS
Priority to FR1663216A priority Critical patent/FR3061401B1/fr
Publication of FR3061401A1 publication Critical patent/FR3061401A1/fr
Application granted granted Critical
Publication of FR3061401B1 publication Critical patent/FR3061401B1/fr
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Classifications

    • 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]

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.
FR1663216A 2016-12-22 2016-12-22 Dispositif et procede de pilotage de l'intensite d'eclairage de diodes electroluminescentes Active FR3061401B1 (fr)

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)

* Cited by examiner, † Cited by third party
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
KR101614304B1 (ko) * 2007-11-16 2016-04-21 알레그로 마이크로시스템스, 엘엘씨 직렬 연결된 발광 다이오드 열들을 구동하는 전자 회로들

Also Published As

Publication number Publication date
FR3061401A1 (fr) 2018-06-29

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