ATE136189T1 - METHOD AND DEVICE FOR MONITORING A BULB, PARTICULARLY IN THE DARK CONDITION - Google Patents

METHOD AND DEVICE FOR MONITORING A BULB, PARTICULARLY IN THE DARK CONDITION

Info

Publication number
ATE136189T1
ATE136189T1 AT93920701T AT93920701T ATE136189T1 AT E136189 T1 ATE136189 T1 AT E136189T1 AT 93920701 T AT93920701 T AT 93920701T AT 93920701 T AT93920701 T AT 93920701T AT E136189 T1 ATE136189 T1 AT E136189T1
Authority
AT
Austria
Prior art keywords
delta
lamp
actual value
time
bulb
Prior art date
Application number
AT93920701T
Other languages
German (de)
Inventor
Heinz-Peter Baumgarte
Original Assignee
Siemens Ag
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 Siemens Ag filed Critical Siemens Ag
Application granted granted Critical
Publication of ATE136189T1 publication Critical patent/ATE136189T1/en

Links

Classifications

    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05BELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B47/00Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
    • H05B47/20Responsive to malfunctions or to light source life; for protection

Landscapes

  • Circuit Arrangement For Electric Light Sources In General (AREA)
  • Photometry And Measurement Of Optical Pulse Characteristics (AREA)
  • Manufacture Of Electron Tubes, Discharge Lamp Vessels, Lead-In Wires, And The Like (AREA)

Abstract

At the start of the switching-on process of the incandescent lamp (5), a first actual value (ILA) of the lamp current (IL) and then, after a time lapse (T), a second actual value (ILE) are measured. The time lapse (T; T1, T2, T3) is predetermined dependently upon the first actual value (IL1A, IL2A, IL3A) at the start of a switching-on process in such a way that, when a drop (I, II, III) therein occurs, the length of the time (T1, T2, T3) is extended. The difference ((Delta) I; (Delta) IL1 (Delta) IL2, (Delta) IL3) between the measured actual values is evaluated to detect the operability of the incandescent lamp. The time is preferably predetermined in such a way that the lamp does not light up until it has elapsed and the lamp is then disconnected from the supply voltage again.
AT93920701T 1992-09-25 1993-09-10 METHOD AND DEVICE FOR MONITORING A BULB, PARTICULARLY IN THE DARK CONDITION ATE136189T1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP92116464 1992-09-25

Publications (1)

Publication Number Publication Date
ATE136189T1 true ATE136189T1 (en) 1996-04-15

Family

ID=8210058

Family Applications (1)

Application Number Title Priority Date Filing Date
AT93920701T ATE136189T1 (en) 1992-09-25 1993-09-10 METHOD AND DEVICE FOR MONITORING A BULB, PARTICULARLY IN THE DARK CONDITION

Country Status (9)

Country Link
EP (1) EP0662276B1 (en)
AT (1) ATE136189T1 (en)
CZ (1) CZ283430B6 (en)
DE (1) DE59302071D1 (en)
DK (1) DK0662276T3 (en)
ES (1) ES2085171T3 (en)
FI (1) FI951382A (en)
SK (1) SK37895A3 (en)
WO (1) WO1994008438A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6674800B1 (en) 2000-08-29 2004-01-06 Koninklijke Philips Electronics N.V. Method and system for utilizing a global optimal approach of scalable algorithms
DE10140331C2 (en) 2001-08-16 2003-11-06 Siemens Ag Traffic control light signals and method for monitoring the function of such a sign

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61124227A (en) * 1984-11-19 1986-06-12 日産自動車株式会社 Discriminator for state of load
ATE91376T1 (en) * 1989-12-27 1993-07-15 Scheidt & Bachmann Gmbh ARRANGEMENT FOR MONITORING THE FUNCTIONALITY OF A BULB.

Also Published As

Publication number Publication date
FI951382A0 (en) 1995-03-23
ES2085171T3 (en) 1996-05-16
FI951382A (en) 1995-03-23
EP0662276A1 (en) 1995-07-12
CZ283430B6 (en) 1998-04-15
DK0662276T3 (en) 1996-08-05
EP0662276B1 (en) 1996-03-27
SK37895A3 (en) 1995-08-09
WO1994008438A1 (en) 1994-04-14
DE59302071D1 (en) 1996-05-02
CZ58595A3 (en) 1995-06-14

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Legal Events

Date Code Title Description
REN Ceased due to non-payment of the annual fee