ES466009A1 - IMPROVEMENTS IN DETECTION DEVICES OF THE DEFECTIVE STATE OF A LAMP BETWEEN SEVERAL POWER SUPPLIES BY DIRECT CURRENT. - Google Patents

IMPROVEMENTS IN DETECTION DEVICES OF THE DEFECTIVE STATE OF A LAMP BETWEEN SEVERAL POWER SUPPLIES BY DIRECT CURRENT.

Info

Publication number
ES466009A1
ES466009A1 ES466009A ES466009A ES466009A1 ES 466009 A1 ES466009 A1 ES 466009A1 ES 466009 A ES466009 A ES 466009A ES 466009 A ES466009 A ES 466009A ES 466009 A1 ES466009 A1 ES 466009A1
Authority
ES
Spain
Prior art keywords
lamp
direct current
defective state
power supplies
detection devices
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.)
Expired
Application number
ES466009A
Other languages
Spanish (es)
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 ES470517A priority Critical patent/ES470517A2/en
Publication of ES466009A1 publication Critical patent/ES466009A1/en
Expired 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

Improvements in devices for detecting the defective state of a lamp among several lamps powered by direct current, characterized in that a means is provided capable of creating an impedance when it is fed on an alternative voltage, but nevertheless passing the continuous current of power supply of the lamp, fed in series between each lamp and the steering switch; an alternative voltage source connected to each junction point between each of said lamps and each of said means; and a device for detecting variations, of the voltage at the terminals of said own means. (Machine-translation by Google Translate, not legally binding)
ES466009A 1976-12-29 1977-12-23 IMPROVEMENTS IN DETECTION DEVICES OF THE DEFECTIVE STATE OF A LAMP BETWEEN SEVERAL POWER SUPPLIES BY DIRECT CURRENT. Expired ES466009A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
ES470517A ES470517A2 (en) 1977-05-27 1978-05-23 Improvements introduced in the object of the main patent n.466.009, deposited on december 23, 1977, by: improvements in device detection of the defective state of a lamp between various feeded by continuous current (Machine-translation by Google Translate, not legally binding)

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 (1)

Publication Number Publication Date
ES466009A1 true ES466009A1 (en) 1978-10-01

Family

ID=9181682

Family Applications (1)

Application Number Title Priority Date Filing Date
ES466009A Expired 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.

Country Status (4)

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

Families Citing this family (2)

* 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
EP1350416B1 (en) * 2000-11-09 2006-03-29 Azoteq (PTY) Limited Light emitting device

Family Cites Families (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
DE2215391B2 (en) * 1972-03-29 1974-04-18 Siemens Ag, 1000 Berlin U. 8000 Muenchen Arrangement for monitoring motor vehicle lights with a display device mounted in the driver's field of vision

Also Published As

Publication number Publication date
DE2757775A1 (en) 1978-07-06
IT1088381B (en) 1985-06-10
FR2376587B1 (en) 1981-07-24
FR2376587A1 (en) 1978-07-28

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