DK0662276T3 - Method and device for monitoring an incandescent lamp, especially in the dark state - Google Patents
Method and device for monitoring an incandescent lamp, especially in the dark stateInfo
- Publication number
- DK0662276T3 DK0662276T3 DK93920701.5T DK93920701T DK0662276T3 DK 0662276 T3 DK0662276 T3 DK 0662276T3 DK 93920701 T DK93920701 T DK 93920701T DK 0662276 T3 DK0662276 T3 DK 0662276T3
- Authority
- DK
- Denmark
- Prior art keywords
- delta
- lamp
- incandescent lamp
- actual value
- monitoring
- Prior art date
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
- H05B47/00—Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
- H05B47/20—Responsive 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.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP92116464 | 1992-09-25 | ||
| PCT/EP1993/002454 WO1994008438A1 (en) | 1992-09-25 | 1993-09-10 | Process and device for monitoring an incandescent lamp, especially in dark condition |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DK0662276T3 true DK0662276T3 (en) | 1996-08-05 |
Family
ID=8210058
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DK93920701.5T DK0662276T3 (en) | 1992-09-25 | 1993-09-10 | Method and device for monitoring an incandescent lamp, especially in the dark state |
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) | FI951382A0 (en) |
| SK (1) | SK37895A3 (en) |
| WO (1) | WO1994008438A1 (en) |
Families Citing this family (2)
| 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)
| 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. |
-
1993
- 1993-09-10 WO PCT/EP1993/002454 patent/WO1994008438A1/en active IP Right Grant
- 1993-09-10 SK SK378-95A patent/SK37895A3/en unknown
- 1993-09-10 AT AT93920701T patent/ATE136189T1/en not_active IP Right Cessation
- 1993-09-10 DE DE59302071T patent/DE59302071D1/en not_active Expired - Fee Related
- 1993-09-10 DK DK93920701.5T patent/DK0662276T3/en active
- 1993-09-10 ES ES93920701T patent/ES2085171T3/en not_active Expired - Lifetime
- 1993-09-10 CZ CZ95585A patent/CZ283430B6/en unknown
- 1993-09-10 EP EP93920701A patent/EP0662276B1/en not_active Expired - Lifetime
-
1995
- 1995-03-23 FI FI951382A patent/FI951382A0/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| CZ58595A3 (en) | 1995-06-14 |
| EP0662276B1 (en) | 1996-03-27 |
| CZ283430B6 (en) | 1998-04-15 |
| FI951382A (en) | 1995-03-23 |
| DE59302071D1 (en) | 1996-05-02 |
| ATE136189T1 (en) | 1996-04-15 |
| EP0662276A1 (en) | 1995-07-12 |
| FI951382A0 (en) | 1995-03-23 |
| SK37895A3 (en) | 1995-08-09 |
| ES2085171T3 (en) | 1996-05-16 |
| WO1994008438A1 (en) | 1994-04-14 |
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