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FR2376587A1 - Fault indicator for motor vehicle lights - uses voltage across series inductor to indicate open circuit light - Google Patents

Fault indicator for motor vehicle lights - uses voltage across series inductor to indicate open circuit light

Info

Publication number
FR2376587A1
FR2376587A1 FR7639448A FR7639448A FR2376587A1 FR 2376587 A1 FR2376587 A1 FR 2376587A1 FR 7639448 A FR7639448 A FR 7639448A FR 7639448 A FR7639448 A FR 7639448A FR 2376587 A1 FR2376587 A1 FR 2376587A1
Authority
FR
France
Prior art keywords
lamp
motor vehicle
open circuit
fault indicator
series inductor
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
FR7639448A
Other languages
French (fr)
Other versions
FR2376587B1 (en
Inventor
Sylvain Joseph Lumbroso
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.)
Jaeger SA
Original Assignee
Jaeger SA
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 Jaeger SA filed Critical Jaeger SA
Priority to FR7639448A priority Critical patent/FR2376587A1/en
Priority to IT3030577A priority patent/IT1088381B/en
Priority to ES466009A priority patent/ES466009A1/en
Priority to DE19772757775 priority patent/DE2757775A1/en
Publication of FR2376587A1 publication Critical patent/FR2376587A1/en
Application granted granted Critical
Publication of FR2376587B1 publication Critical patent/FR2376587B1/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
    • H05B39/10—Circuits providing for substitution of the light source in case of its failure

Landscapes

  • Lighting Device Outwards From Vehicle And Optical Signal (AREA)
  • Circuit Arrangement For Electric Light Sources In General (AREA)

Abstract

Dispositif permettant de détecter l'état défectueux d'une lampe, en particulier la rupture du filament d'une lampe à filament telle que celles qui sont utilisées dans les véhicules automobiles. Il comporte, branché en série, entre la lampe 1 et son interrupteur de commande 2, un moyen de créer une impédance telle que l'inductance 3, lorsqu'il est alimenté sous une tension alternative, tout en laissant passer le courant continu d'alimentation de la lampe, une source de tension alternative 4, branchée au point de jonction A entre la lampe 1 et l'inductance 3. On détecte ensuite, aux bornes de l'inductance 3, les variations de la tensionDevice for detecting the defective state of a lamp, in particular the breakage of the filament of a filament lamp such as those used in motor vehicles. It comprises, connected in series, between the lamp 1 and its control switch 2, a means of creating an impedance such as the inductor 3, when it is supplied with an alternating voltage, while allowing the direct current of power supply of the lamp, an alternating voltage source 4, connected to the junction point A between the lamp 1 and the inductor 3. One then detects, at the terminals of the inductor 3, the variations of the voltage

FR7639448A 1976-12-29 1976-12-29 Fault indicator for motor vehicle lights - uses voltage across series inductor to indicate open circuit light Granted FR2376587A1 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
FR7639448A FR2376587A1 (en) 1976-12-29 1976-12-29 Fault indicator for motor vehicle lights - uses voltage across series inductor to indicate open circuit light
IT3030577A IT1088381B (en) 1976-12-29 1977-12-02 BULB DEFECT DETECTOR DEVICE, PARTICULARLY FOR VEHICLES
ES466009A ES466009A1 (en) 1976-12-29 1977-12-23 IMPROVEMENTS IN DETECTION DEVICES OF THE DEFECTIVE STATE OF A LAMP BETWEEN SEVERAL POWER SUPPLIES BY DIRECT CURRENT.
DE19772757775 DE2757775A1 (en) 1976-12-29 1977-12-23 LAMP ERROR INDICATORS, IN PARTICULAR FOR MOTOR VEHICLES

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7639448A FR2376587A1 (en) 1976-12-29 1976-12-29 Fault indicator for motor vehicle lights - uses voltage across series inductor to indicate open circuit light

Publications (2)

Publication Number Publication Date
FR2376587A1 true FR2376587A1 (en) 1978-07-28
FR2376587B1 FR2376587B1 (en) 1981-07-24

Family

ID=9181682

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7639448A Granted FR2376587A1 (en) 1976-12-29 1976-12-29 Fault indicator for motor vehicle lights - uses voltage across series inductor to indicate open circuit light

Country Status (4)

Country Link
DE (1) DE2757775A1 (en)
ES (1) ES466009A1 (en)
FR (1) FR2376587A1 (en)
IT (1) IT1088381B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002039787A3 (en) * 2000-11-09 2002-08-01 Azoteq Pty Ltd Light emitting device

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6249089B1 (en) 1998-10-09 2001-06-19 Frederick Bruwer Intelligent electrical device comprising microchip

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1391258A (en) * 1964-03-16 1965-03-05 Contactless control assembly for user circuits
US3421157A (en) * 1966-01-24 1969-01-07 Wagner Electric Corp Lamp outage detector
DE2215391A1 (en) * 1972-03-29 1973-10-18 Siemens Ag ARRANGEMENT FOR MONITORING MOTOR VEHICLE LIGHTING WITH A DISPLAY DEVICE FITTED IN THE DRIVER'S FIELD OF VISION

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1391258A (en) * 1964-03-16 1965-03-05 Contactless control assembly for user circuits
US3421157A (en) * 1966-01-24 1969-01-07 Wagner Electric Corp Lamp outage detector
DE2215391A1 (en) * 1972-03-29 1973-10-18 Siemens Ag ARRANGEMENT FOR MONITORING MOTOR VEHICLE LIGHTING WITH A DISPLAY DEVICE FITTED IN THE DRIVER'S FIELD OF VISION

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002039787A3 (en) * 2000-11-09 2002-08-01 Azoteq Pty Ltd Light emitting device
US6828739B2 (en) 2000-11-09 2004-12-07 Azoteq (Pty) Ltd Light emitting device

Also Published As

Publication number Publication date
FR2376587B1 (en) 1981-07-24
IT1088381B (en) 1985-06-10
ES466009A1 (en) 1978-10-01
DE2757775A1 (en) 1978-07-06

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Legal Events

Date Code Title Description
ST Notification of lapse