EP0411618A3 - Electronic ballast for gas discharge lamps - Google Patents
Electronic ballast for gas discharge lamps Download PDFInfo
- Publication number
- EP0411618A3 EP0411618A3 EP19900114792 EP90114792A EP0411618A3 EP 0411618 A3 EP0411618 A3 EP 0411618A3 EP 19900114792 EP19900114792 EP 19900114792 EP 90114792 A EP90114792 A EP 90114792A EP 0411618 A3 EP0411618 A3 EP 0411618A3
- Authority
- EP
- European Patent Office
- Prior art keywords
- signal
- switch
- circuit part
- voltage
- gas discharge
- 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
-
- 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
- H05B41/2983—Arrangements for protecting lamps or circuits against abnormal operating conditions for protecting the circuit against abnormal operating conditions against abnormal power supply conditions
Landscapes
- Circuit Arrangements For Discharge Lamps (AREA)
- Discharge Lamp (AREA)
- Rigid Pipes And Flexible Pipes (AREA)
- Pipeline Systems (AREA)
- Connecting Device With Holders (AREA)
- Electron Sources, Ion Sources (AREA)
- Inverter Devices (AREA)
- Investigating Or Analysing Materials By The Use Of Chemical Reactions (AREA)
- Air Bags (AREA)
- Absorbent Articles And Supports Therefor (AREA)
Abstract
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE3925899 | 1989-08-04 | ||
DE3925899A DE3925899A1 (en) | 1989-08-04 | 1989-08-04 | ELECTRONIC CONTROLLER FOR GAS DISCHARGE LAMPS |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0411618A2 EP0411618A2 (en) | 1991-02-06 |
EP0411618A3 true EP0411618A3 (en) | 1992-07-22 |
EP0411618B1 EP0411618B1 (en) | 1994-03-02 |
Family
ID=6386555
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP90114792A Expired - Lifetime EP0411618B1 (en) | 1989-08-04 | 1990-08-01 | Electronic ballast for gas discharge lamps |
Country Status (7)
Country | Link |
---|---|
EP (1) | EP0411618B1 (en) |
AT (1) | ATE102429T1 (en) |
DE (2) | DE3925899A1 (en) |
DK (1) | DK0411618T3 (en) |
ES (1) | ES2050897T3 (en) |
FI (1) | FI96657C (en) |
NO (1) | NO177210C (en) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4120649A1 (en) * | 1991-06-22 | 1992-12-24 | Vossloh Schwabe Gmbh | OVERVOLTAGE PROTECTED BALLAST |
DE19619580A1 (en) * | 1996-05-15 | 1997-11-20 | Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh | Safety shutdown with asymmetrical lamp power |
DE10163034B4 (en) * | 2001-12-20 | 2014-08-28 | Tridonic Gmbh & Co Kg | Electronic ballast with overvoltage monitoring |
DE102004002027B4 (en) | 2004-01-14 | 2020-03-26 | Tridonic Gmbh & Co Kg | Central PFC with DC output circuit control |
DE102005028419A1 (en) * | 2005-06-20 | 2006-12-28 | Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH | Electronic ballast for e.g. coldstarting discharge lamp, has varistor, shutdown device, diode, resistors and integration capacitor connected in parallel for limiting voltage across intermediate circuit capacitor |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2117192A (en) * | 1982-02-26 | 1983-10-05 | Transtar Limited | Lamp control circuit |
US4538095A (en) * | 1983-06-03 | 1985-08-27 | Nilssen Ole K | Series-resonant electronic ballast circuit |
WO1986006921A1 (en) * | 1985-05-14 | 1986-11-20 | Zumtobel Aktiengesellschaft | Protection circuit for an inverter |
FR2625642A1 (en) * | 1987-12-31 | 1989-07-07 | Courier De Mere Henri | Electronic ballast with high power factor |
DE4002334A1 (en) * | 1989-01-26 | 1990-08-02 | Koito Mfg Co Ltd | Electric lamp lighting circuit with protection against overload - includes protective switch opened automatically on de-energisation of relay coil in series with manual lighting switch |
-
1989
- 1989-08-04 DE DE3925899A patent/DE3925899A1/en not_active Withdrawn
-
1990
- 1990-07-31 FI FI903809A patent/FI96657C/en active IP Right Grant
- 1990-08-01 ES ES90114792T patent/ES2050897T3/en not_active Expired - Lifetime
- 1990-08-01 AT AT90114792T patent/ATE102429T1/en not_active IP Right Cessation
- 1990-08-01 DE DE90114792T patent/DE59004747D1/en not_active Expired - Fee Related
- 1990-08-01 DK DK90114792.6T patent/DK0411618T3/en active
- 1990-08-01 EP EP90114792A patent/EP0411618B1/en not_active Expired - Lifetime
- 1990-08-03 NO NO903421A patent/NO177210C/en not_active IP Right Cessation
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2117192A (en) * | 1982-02-26 | 1983-10-05 | Transtar Limited | Lamp control circuit |
US4538095A (en) * | 1983-06-03 | 1985-08-27 | Nilssen Ole K | Series-resonant electronic ballast circuit |
WO1986006921A1 (en) * | 1985-05-14 | 1986-11-20 | Zumtobel Aktiengesellschaft | Protection circuit for an inverter |
FR2625642A1 (en) * | 1987-12-31 | 1989-07-07 | Courier De Mere Henri | Electronic ballast with high power factor |
DE4002334A1 (en) * | 1989-01-26 | 1990-08-02 | Koito Mfg Co Ltd | Electric lamp lighting circuit with protection against overload - includes protective switch opened automatically on de-energisation of relay coil in series with manual lighting switch |
Also Published As
Publication number | Publication date |
---|---|
ATE102429T1 (en) | 1994-03-15 |
EP0411618B1 (en) | 1994-03-02 |
EP0411618A2 (en) | 1991-02-06 |
FI96657B (en) | 1996-04-15 |
FI903809A0 (en) | 1990-07-31 |
DE59004747D1 (en) | 1994-04-07 |
ES2050897T3 (en) | 1994-06-01 |
DE3925899A1 (en) | 1991-02-07 |
DK0411618T3 (en) | 1994-03-28 |
FI96657C (en) | 1996-07-25 |
NO177210C (en) | 1995-08-02 |
NO903421D0 (en) | 1990-08-03 |
NO177210B (en) | 1995-04-24 |
NO903421L (en) | 1991-02-05 |
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