EP1189487A3 - Electronic circuit for detecting filament wear of gas discharge lamps - Google Patents
Electronic circuit for detecting filament wear of gas discharge lamps Download PDFInfo
- Publication number
- EP1189487A3 EP1189487A3 EP01118281A EP01118281A EP1189487A3 EP 1189487 A3 EP1189487 A3 EP 1189487A3 EP 01118281 A EP01118281 A EP 01118281A EP 01118281 A EP01118281 A EP 01118281A EP 1189487 A3 EP1189487 A3 EP 1189487A3
- Authority
- EP
- European Patent Office
- Prior art keywords
- electronic circuit
- gas discharge
- discharge lamps
- helix
- filament wear
- 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
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
- H05B41/00—Circuit arrangements or apparatus for igniting or operating discharge lamps
- H05B41/14—Circuit arrangements
- H05B41/26—Circuit arrangements in which the lamp is fed by power derived from dc by means of a converter, e.g. by high-voltage dc
- H05B41/28—Circuit arrangements in which the lamp is fed by power derived from dc by means of a converter, e.g. by high-voltage dc using static converters
- H05B41/295—Circuit arrangements in which the lamp is fed by power derived from dc by means of a converter, e.g. by high-voltage dc using static converters with semiconductor devices and specially adapted for lamps with preheating electrodes, e.g. for fluorescent lamps
- H05B41/298—Arrangements for protecting lamps or circuits against abnormal operating conditions
- H05B41/2981—Arrangements for protecting lamps or circuits against abnormal operating conditions for protecting the circuit against abnormal operating conditions
- H05B41/2985—Arrangements for protecting lamps or circuits against abnormal operating conditions for protecting the circuit against abnormal operating conditions against abnormal lamp operating conditions
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S315/00—Electric lamp and discharge devices: systems
- Y10S315/07—Starting and control circuits for gas discharge lamp using transistors
Landscapes
- Circuit Arrangements For Discharge Lamps (AREA)
- Spinning Or Twisting Of Yarns (AREA)
Abstract
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10046443 | 2000-09-18 | ||
DE10046443A DE10046443A1 (en) | 2000-09-18 | 2000-09-18 | Electronic circuit for the detection of the change in gas discharge lamps |
Publications (3)
Publication Number | Publication Date |
---|---|
EP1189487A2 EP1189487A2 (en) | 2002-03-20 |
EP1189487A3 true EP1189487A3 (en) | 2005-01-05 |
EP1189487B1 EP1189487B1 (en) | 2007-11-07 |
Family
ID=7656863
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP01118281A Expired - Lifetime EP1189487B1 (en) | 2000-09-18 | 2001-07-30 | Electronic circuit for detecting filament wear of gas discharge lamps |
Country Status (9)
Country | Link |
---|---|
US (1) | US6566822B2 (en) |
EP (1) | EP1189487B1 (en) |
KR (1) | KR20020021997A (en) |
CN (1) | CN1345175A (en) |
AT (1) | ATE377926T1 (en) |
AU (1) | AU775944B2 (en) |
CA (1) | CA2357379A1 (en) |
DE (2) | DE10046443A1 (en) |
TW (1) | TW522758B (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10160790A1 (en) * | 2001-01-12 | 2002-08-08 | Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh | Circuit for switching on sub-circuitry, e.g. for lamp starter circuit, has additional diode connected in series and in same orientation as two diodes |
US7116063B2 (en) * | 2003-07-28 | 2006-10-03 | Matsushita Electric Works, Ltd. | Dimmable discharge lamp lighting device |
CN1874645B (en) * | 2005-05-31 | 2010-09-29 | 电灯专利信托有限公司 | Device for safely connecting lamp to equipment site |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0111929A1 (en) * | 1982-12-23 | 1984-06-27 | Siemens Aktiengesellschaft | Arrangement for switching off an inverter |
DE4120649A1 (en) * | 1991-06-22 | 1992-12-24 | Vossloh Schwabe Gmbh | OVERVOLTAGE PROTECTED BALLAST |
EP0808084A2 (en) * | 1996-05-15 | 1997-11-19 | Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH | Safety shutdown in case of asymmetrical power consumption |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3608615A1 (en) * | 1986-03-14 | 1987-09-17 | Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh | CIRCUIT ARRANGEMENT FOR OPERATING LOW-PRESSURE DISCHARGE LAMPS |
DE3805510A1 (en) | 1988-02-22 | 1989-08-31 | Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh | CIRCUIT ARRANGEMENT FOR OPERATING A LOW-PRESSURE DISCHARGE LAMP |
US5027034A (en) | 1989-10-12 | 1991-06-25 | Honeywell Inc. | Alternating cathode florescent lamp dimmer |
DE4238409A1 (en) * | 1992-11-13 | 1994-05-19 | Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh | Circuit arrangement for operating low-pressure discharge lamps |
US5493181A (en) | 1994-03-22 | 1996-02-20 | Energy Savings, Inc. | Capacitive lamp out detector |
US5612597A (en) * | 1994-12-29 | 1997-03-18 | International Rectifier Corporation | Oscillating driver circuit with power factor correction, electronic lamp ballast employing same and driver method |
DE19505459A1 (en) | 1995-02-17 | 1996-08-22 | Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh | Circuit arrangement for operating a discharge lamp |
US5493180A (en) * | 1995-03-31 | 1996-02-20 | Energy Savings, Inc., A Delaware Corporation | Lamp protective, electronic ballast |
US5952790A (en) * | 1996-09-06 | 1999-09-14 | General Electric Company | Lamp ballast circuit with simplified starting circuit |
DE19715342C1 (en) * | 1997-04-12 | 1998-12-17 | Vossloh Schwabe Gmbh | Ballast for independent parallel operation of low pressure gas discharge lamps |
DE19728847C1 (en) * | 1997-07-05 | 1998-08-20 | Vossloh Schwabe Gmbh | Voltage regulated electronic starter unit for gas discharge lamp especially fluorescent lamp |
-
2000
- 2000-09-18 DE DE10046443A patent/DE10046443A1/en not_active Withdrawn
-
2001
- 2001-07-30 EP EP01118281A patent/EP1189487B1/en not_active Expired - Lifetime
- 2001-07-30 DE DE50113223T patent/DE50113223D1/en not_active Expired - Lifetime
- 2001-07-30 AT AT01118281T patent/ATE377926T1/en not_active IP Right Cessation
- 2001-08-29 TW TW090121291A patent/TW522758B/en not_active IP Right Cessation
- 2001-09-05 US US09/945,725 patent/US6566822B2/en not_active Expired - Fee Related
- 2001-09-13 KR KR1020010056390A patent/KR20020021997A/en not_active Application Discontinuation
- 2001-09-17 AU AU72167/01A patent/AU775944B2/en not_active Ceased
- 2001-09-17 CA CA002357379A patent/CA2357379A1/en not_active Abandoned
- 2001-09-18 CN CN01133171A patent/CN1345175A/en active Pending
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0111929A1 (en) * | 1982-12-23 | 1984-06-27 | Siemens Aktiengesellschaft | Arrangement for switching off an inverter |
DE4120649A1 (en) * | 1991-06-22 | 1992-12-24 | Vossloh Schwabe Gmbh | OVERVOLTAGE PROTECTED BALLAST |
EP0808084A2 (en) * | 1996-05-15 | 1997-11-19 | Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH | Safety shutdown in case of asymmetrical power consumption |
Also Published As
Publication number | Publication date |
---|---|
EP1189487B1 (en) | 2007-11-07 |
TW522758B (en) | 2003-03-01 |
CA2357379A1 (en) | 2002-03-18 |
AU775944B2 (en) | 2004-08-19 |
US6566822B2 (en) | 2003-05-20 |
DE50113223D1 (en) | 2007-12-20 |
AU7216701A (en) | 2002-03-21 |
DE10046443A1 (en) | 2002-03-28 |
ATE377926T1 (en) | 2007-11-15 |
CN1345175A (en) | 2002-04-17 |
US20020047604A1 (en) | 2002-04-25 |
EP1189487A2 (en) | 2002-03-20 |
KR20020021997A (en) | 2002-03-23 |
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