EP1233657A3 - Circuit de protection pour tube fluorescent - Google Patents
Circuit de protection pour tube fluorescent Download PDFInfo
- Publication number
- EP1233657A3 EP1233657A3 EP02001285A EP02001285A EP1233657A3 EP 1233657 A3 EP1233657 A3 EP 1233657A3 EP 02001285 A EP02001285 A EP 02001285A EP 02001285 A EP02001285 A EP 02001285A EP 1233657 A3 EP1233657 A3 EP 1233657A3
- Authority
- EP
- European Patent Office
- Prior art keywords
- fluorescent lamp
- protective circuit
- resistor
- bridges
- resistors
- 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
- 230000001681 protective effect Effects 0.000 title abstract 2
- 239000003990 capacitor Substances 0.000 abstract 1
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
Landscapes
- Circuit Arrangements For Discharge Lamps (AREA)
- Circuit Arrangement For Electric Light Sources In General (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE10108138 | 2001-02-20 | ||
| DE10108138A DE10108138A1 (de) | 2001-02-20 | 2001-02-20 | Schutzschaltung für eine Leuchstofflampe |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| EP1233657A2 EP1233657A2 (fr) | 2002-08-21 |
| EP1233657A3 true EP1233657A3 (fr) | 2006-05-24 |
| EP1233657B1 EP1233657B1 (fr) | 2007-07-25 |
Family
ID=7674857
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP02001285A Expired - Lifetime EP1233657B1 (fr) | 2001-02-20 | 2002-01-17 | Circuit de protection pour tube fluorescent |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US6650514B2 (fr) |
| EP (1) | EP1233657B1 (fr) |
| CN (1) | CN100477880C (fr) |
| AT (1) | ATE368367T1 (fr) |
| CA (1) | CA2373571A1 (fr) |
| DE (2) | DE10108138A1 (fr) |
| TW (1) | TW540255B (fr) |
Families Citing this family (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10209619A1 (de) * | 2002-03-05 | 2003-09-25 | Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh | Betriebsschaltung für Entladungslampe mit EOL-Früherkennung |
| US6979959B2 (en) | 2002-12-13 | 2005-12-27 | Microsemi Corporation | Apparatus and method for striking a fluorescent lamp |
| US7405522B2 (en) * | 2003-08-26 | 2008-07-29 | Q Technology, Inc. | Multiple failure detection shutdown protection circuit for an electronic ballast |
| US7598677B2 (en) * | 2003-08-26 | 2009-10-06 | Q Technology, Inc. | Multiple failure detection shutdown protection circuit for an electronic ballast |
| US7187139B2 (en) | 2003-09-09 | 2007-03-06 | Microsemi Corporation | Split phase inverters for CCFL backlight system |
| US7183727B2 (en) | 2003-09-23 | 2007-02-27 | Microsemi Corporation | Optical and temperature feedbacks to control display brightness |
| US7468722B2 (en) | 2004-02-09 | 2008-12-23 | Microsemi Corporation | Method and apparatus to control display brightness with ambient light correction |
| WO2005099316A2 (fr) | 2004-04-01 | 2005-10-20 | Microsemi Corporation | Schema de synchronisation de circuit d'attaque compatible avec les structures en pont complet et en demi pont pour systeme de retroeclairage a commande directe |
| US7755595B2 (en) | 2004-06-07 | 2010-07-13 | Microsemi Corporation | Dual-slope brightness control for transflective displays |
| DE102005013898A1 (de) * | 2005-03-24 | 2006-09-28 | Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH | Schaltungsanordnung zum Betrieb mindestens einer ersten und einer zweiten darin einsetzbaren Lampe |
| DE102005028419A1 (de) * | 2005-06-20 | 2006-12-28 | Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH | Abschaltschaltung |
| US7414371B1 (en) * | 2005-11-21 | 2008-08-19 | Microsemi Corporation | Voltage regulation loop with variable gain control for inverter circuit |
| US7569998B2 (en) | 2006-07-06 | 2009-08-04 | Microsemi Corporation | Striking and open lamp regulation for CCFL controller |
| DE102006036293A1 (de) * | 2006-08-03 | 2008-02-14 | Cooper Crouse-Hinds Gmbh | Überwachungsvorrichtung |
| DE502007006528D1 (de) * | 2007-03-29 | 2011-03-31 | Osram Gmbh | Schaltungsanordnung zur ansteuerung mindestens einer leuchtstofflampe |
| US8319446B2 (en) | 2007-04-19 | 2012-11-27 | Osram Ag | Circuit for controlling a fluorescent lamp, method for operating the circuit, and system comprising the circuit |
| US8093839B2 (en) | 2008-11-20 | 2012-01-10 | Microsemi Corporation | Method and apparatus for driving CCFL at low burst duty cycle rates |
| US8487541B2 (en) * | 2010-10-11 | 2013-07-16 | General Electric Company | Method to ensure ballast starting regardless of half cycle input |
| US8810146B1 (en) | 2011-11-04 | 2014-08-19 | Universal Lighting Technologies, Inc. | Lighting device with circuit and method for detecting power converter activity |
| DE102012207002A1 (de) * | 2011-12-23 | 2013-06-27 | Tridonic Gmbh & Co. Kg | Verfahren, Betriebsgerät und Beleuchtungssystem |
| CN103369770B (zh) * | 2012-03-31 | 2016-09-07 | 海洋王照明科技股份有限公司 | 灯具过温保护电路及装置 |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5770925A (en) * | 1997-05-30 | 1998-06-23 | Motorola Inc. | Electronic ballast with inverter protection and relamping circuits |
| US5808422A (en) * | 1996-05-10 | 1998-09-15 | Philips Electronics North America | Lamp ballast with lamp rectification detection circuitry |
| EP0886460A1 (fr) * | 1997-06-18 | 1998-12-23 | Oy Helvar | Ballast électronique avec circuit detécteur du courant de lampe rectifiée |
| WO2000011916A1 (fr) * | 1998-08-20 | 2000-03-02 | Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH | Circuit pour faire fonctionner au moins une lampe a decharge |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4425859A1 (de) * | 1994-07-21 | 1996-01-25 | Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh | Schaltungsanordnung zum Betrieb einer oder mehrerer Niederdruckentladungslampen |
| EP0753987B1 (fr) * | 1995-07-12 | 1998-12-16 | Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH | Circuit et procédé d'opération de lampes électriques |
| JPH0935512A (ja) | 1995-07-25 | 1997-02-07 | Matsushita Electric Works Ltd | 無電極放電灯点灯装置 |
| DE19548506A1 (de) * | 1995-12-22 | 1997-06-26 | Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh | Schaltungsanordnung zum Betrieb einer Lampe |
| DE19612170A1 (de) * | 1996-03-27 | 1997-10-02 | Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh | Schaltungsanordnung zum Betrieb von elektrischen Lampen und Betriebsverfahren für elektrische Lampen |
| DE19830368A1 (de) * | 1998-07-07 | 2000-02-03 | Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh | Elektronisches Vorschaltgerät mit Einschaltstrombegrenzung |
-
2001
- 2001-02-20 DE DE10108138A patent/DE10108138A1/de not_active Withdrawn
-
2002
- 2002-01-17 AT AT02001285T patent/ATE368367T1/de not_active IP Right Cessation
- 2002-01-17 DE DE50210534T patent/DE50210534D1/de not_active Expired - Lifetime
- 2002-01-17 EP EP02001285A patent/EP1233657B1/fr not_active Expired - Lifetime
- 2002-02-07 TW TW091102178A patent/TW540255B/zh not_active IP Right Cessation
- 2002-02-11 US US10/068,894 patent/US6650514B2/en not_active Expired - Fee Related
- 2002-02-19 CA CA002373571A patent/CA2373571A1/fr not_active Abandoned
- 2002-02-20 CN CNB021046891A patent/CN100477880C/zh not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5808422A (en) * | 1996-05-10 | 1998-09-15 | Philips Electronics North America | Lamp ballast with lamp rectification detection circuitry |
| US5770925A (en) * | 1997-05-30 | 1998-06-23 | Motorola Inc. | Electronic ballast with inverter protection and relamping circuits |
| EP0886460A1 (fr) * | 1997-06-18 | 1998-12-23 | Oy Helvar | Ballast électronique avec circuit detécteur du courant de lampe rectifiée |
| WO2000011916A1 (fr) * | 1998-08-20 | 2000-03-02 | Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH | Circuit pour faire fonctionner au moins une lampe a decharge |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1374824A (zh) | 2002-10-16 |
| CN100477880C (zh) | 2009-04-08 |
| US20020114114A1 (en) | 2002-08-22 |
| US6650514B2 (en) | 2003-11-18 |
| ATE368367T1 (de) | 2007-08-15 |
| DE10108138A1 (de) | 2002-08-29 |
| DE50210534D1 (de) | 2007-09-06 |
| EP1233657B1 (fr) | 2007-07-25 |
| EP1233657A2 (fr) | 2002-08-21 |
| CA2373571A1 (fr) | 2002-08-20 |
| TW540255B (en) | 2003-07-01 |
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