FR2467441A1 - Circuit de commande d'une source lumineuse - Google Patents

Circuit de commande d'une source lumineuse Download PDF

Info

Publication number
FR2467441A1
FR2467441A1 FR8021489A FR8021489A FR2467441A1 FR 2467441 A1 FR2467441 A1 FR 2467441A1 FR 8021489 A FR8021489 A FR 8021489A FR 8021489 A FR8021489 A FR 8021489A FR 2467441 A1 FR2467441 A1 FR 2467441A1
Authority
FR
France
Prior art keywords
light source
circuit
voltage
current
power
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.)
Granted
Application number
FR8021489A
Other languages
English (en)
French (fr)
Other versions
FR2467441B1 (OSRAM
Inventor
Tadashi Sasaki
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.)
Fujinon Corp
Original Assignee
Fuji Photo Optical Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Fuji Photo Optical Co Ltd filed Critical Fuji Photo Optical Co Ltd
Publication of FR2467441A1 publication Critical patent/FR2467441A1/fr
Application granted granted Critical
Publication of FR2467441B1 publication Critical patent/FR2467441B1/fr
Granted legal-status Critical Current

Links

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
    • H05B39/00—Circuit arrangements or apparatus for operating incandescent light sources
    • H05B39/02—Switching on, e.g. with predetermined rate of increase of lighting current
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05F—SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES
    • G05F1/00—Automatic systems in which deviations of an electric quantity from one or more predetermined values are detected at the output of the system and fed back to a device within the system to restore the detected quantity to its predetermined value or values, i.e. retroactive systems
    • G05F1/66—Regulating electric power

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Automation & Control Theory (AREA)
  • Circuit Arrangement For Electric Light Sources In General (AREA)
FR8021489A 1979-10-09 1980-10-08 Circuit de commande d'une source lumineuse Granted FR2467441A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13025679A JPS5654791A (en) 1979-10-09 1979-10-09 Light source driving circuit

Publications (2)

Publication Number Publication Date
FR2467441A1 true FR2467441A1 (fr) 1981-04-17
FR2467441B1 FR2467441B1 (OSRAM) 1984-01-20

Family

ID=15029899

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8021489A Granted FR2467441A1 (fr) 1979-10-09 1980-10-08 Circuit de commande d'une source lumineuse

Country Status (3)

Country Link
JP (1) JPS5654791A (OSRAM)
DE (1) DE3037957C2 (OSRAM)
FR (1) FR2467441A1 (OSRAM)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2527859A1 (fr) * 1982-05-28 1983-12-02 Gen Electric Circuit et procede de commande de la resistance de charge d'une charge electrique
EP0432847A3 (en) * 1989-12-15 1992-06-17 N.V. Philips' Gloeilampenfabrieken Bilevel current limiter
EP0492153A1 (de) * 1990-12-21 1992-07-01 Bayerische Motoren Werke Aktiengesellschaft Verfahren zur Steigerung der Wahrnehmbarkeit einer Signalleuchte an Kraftfahrzeugen
EP1458224A3 (en) * 2003-02-28 2004-12-22 Samsung Electronics Co., Ltd. Controlling a light source

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60130098A (ja) * 1983-12-16 1985-07-11 株式会社日立製作所 照明装置の照明照度切換回路
DE4327767C2 (de) * 1993-05-17 1996-06-20 Bosch Gmbh Robert Handscheinwerfer mit als Mikroprozessor ausgebildeter Regelungseinrichtung
DE10023950A1 (de) * 2000-05-16 2001-11-22 Bosch Gmbh Robert Halbleiter-Bauelement

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4101808A (en) * 1975-09-30 1978-07-18 Bell & Howell Company Lamp control circuit

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US156166A (en) * 1874-10-20 Improvement in lathes for turning hubs
FR2071512A5 (OSRAM) * 1969-12-31 1971-09-17 Radiotechnique Compelec
DD106122A1 (OSRAM) * 1973-07-31 1974-05-20
JPS50146851A (OSRAM) * 1974-05-16 1975-11-25

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4101808A (en) * 1975-09-30 1978-07-18 Bell & Howell Company Lamp control circuit

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2527859A1 (fr) * 1982-05-28 1983-12-02 Gen Electric Circuit et procede de commande de la resistance de charge d'une charge electrique
EP0432847A3 (en) * 1989-12-15 1992-06-17 N.V. Philips' Gloeilampenfabrieken Bilevel current limiter
EP0492153A1 (de) * 1990-12-21 1992-07-01 Bayerische Motoren Werke Aktiengesellschaft Verfahren zur Steigerung der Wahrnehmbarkeit einer Signalleuchte an Kraftfahrzeugen
EP1458224A3 (en) * 2003-02-28 2004-12-22 Samsung Electronics Co., Ltd. Controlling a light source
US7119495B2 (en) 2003-02-28 2006-10-10 Samsung Electronics Co., Ltd. Controlling a light assembly

Also Published As

Publication number Publication date
DE3037957C2 (de) 1983-12-15
FR2467441B1 (OSRAM) 1984-01-20
JPS5654791A (en) 1981-05-14
DE3037957A1 (de) 1981-04-23

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Legal Events

Date Code Title Description
ST Notification of lapse