AU1962499A - Electronic lamp ballast - Google Patents
Electronic lamp ballastInfo
- Publication number
- AU1962499A AU1962499A AU19624/99A AU1962499A AU1962499A AU 1962499 A AU1962499 A AU 1962499A AU 19624/99 A AU19624/99 A AU 19624/99A AU 1962499 A AU1962499 A AU 1962499A AU 1962499 A AU1962499 A AU 1962499A
- Authority
- AU
- Australia
- Prior art keywords
- lamp ballast
- gas
- voltage potential
- electronic lamp
- discharge lamp
- 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.)
- Abandoned
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
Landscapes
- Circuit Arrangements For Discharge Lamps (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
- Organic Insulating Materials (AREA)
- Discharge Heating (AREA)
- Non-Silver Salt Photosensitive Materials And Non-Silver Salt Photography (AREA)
- Mechanical Treatment Of Semiconductor (AREA)
- Glass Compositions (AREA)
- Furan Compounds (AREA)
Abstract
The invention relates to an electronic lamp ballast for operating at least one gas-discharge lamp (G1, G2). The electronic lamp ballast comprises a control circuit (IC2), which monitors a voltage potential applied to the input connection (NP) and, depending on the value of the voltage potential, operates the gas-discharge lamp (G1, G2) with or without preheating. The voltage potential monitored by the control circuit (IC2) can in particular depend on the charge status of an energy storage circuit (R22, C17) which is charged while the gas-discharge lamp (G1, G2) is operating and is discharged at a certain time constant when the electronic lamp ballast is switched off. This allows for dynamic switching between cold-start and warm-start operations.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19757667 | 1997-12-23 | ||
DE19757667 | 1997-12-23 | ||
PCT/EP1998/007426 WO1999034648A1 (en) | 1997-12-23 | 1998-11-19 | Electronic lamp ballast |
Publications (1)
Publication Number | Publication Date |
---|---|
AU1962499A true AU1962499A (en) | 1999-07-19 |
Family
ID=7853257
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
AU19624/99A Abandoned AU1962499A (en) | 1997-12-23 | 1998-11-19 | Electronic lamp ballast |
Country Status (7)
Country | Link |
---|---|
EP (1) | EP1048190B1 (en) |
AT (1) | ATE240030T1 (en) |
AU (1) | AU1962499A (en) |
DE (1) | DE59808310D1 (en) |
ES (1) | ES2195438T3 (en) |
WO (1) | WO1999034648A1 (en) |
ZA (1) | ZA9811774B (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10134566A1 (en) * | 2001-07-16 | 2003-02-06 | Tridonicatco Gmbh & Co Kg | Electronic ballast with preheating mode |
DE10206731B4 (en) * | 2002-02-18 | 2016-12-22 | Tridonic Gmbh & Co Kg | Lamp sensor for a ballast for operating a gas discharge lamp |
DE102005042527B4 (en) * | 2005-09-07 | 2015-10-29 | Osram Gmbh | Circuit arrangement and method for operating a discharge lamp |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
IT1121148B (en) * | 1979-06-26 | 1986-03-26 | Siliani Pier | IGNITION CIRCUIT FOR FLUORESCENT AND SIMILAR PIPES WITH PRELIMINARY HEATING OF THE FILAMENTS |
US4958108A (en) * | 1989-02-14 | 1990-09-18 | Avtech Corporation | Universal fluorescent lamp ballast |
US5030887A (en) * | 1990-01-29 | 1991-07-09 | Guisinger John E | High frequency fluorescent lamp exciter |
DE59209173D1 (en) * | 1992-10-28 | 1998-03-05 | Knobel Lichttech | Method and circuit arrangement for igniting fluorescent lamps at a predetermined temperature of the lamp cathodes |
NL9301694A (en) * | 1993-10-01 | 1995-05-01 | Cm Personnel Participation Bv | Electronic ballast for gas discharge tubes. |
US5424611A (en) * | 1993-12-22 | 1995-06-13 | At&T Corp. | Method for pre-heating a gas-discharge lamp |
-
1998
- 1998-11-19 AU AU19624/99A patent/AU1962499A/en not_active Abandoned
- 1998-11-19 DE DE59808310T patent/DE59808310D1/en not_active Expired - Lifetime
- 1998-11-19 EP EP98964410A patent/EP1048190B1/en not_active Expired - Lifetime
- 1998-11-19 AT AT98964410T patent/ATE240030T1/en active
- 1998-11-19 ES ES98964410T patent/ES2195438T3/en not_active Expired - Lifetime
- 1998-11-19 WO PCT/EP1998/007426 patent/WO1999034648A1/en active IP Right Grant
- 1998-12-22 ZA ZA9811774A patent/ZA9811774B/en unknown
Also Published As
Publication number | Publication date |
---|---|
ATE240030T1 (en) | 2003-05-15 |
EP1048190B1 (en) | 2003-05-07 |
WO1999034648A1 (en) | 1999-07-08 |
ZA9811774B (en) | 1999-06-29 |
DE59808310D1 (en) | 2003-06-12 |
EP1048190A1 (en) | 2000-11-02 |
ES2195438T3 (en) | 2003-12-01 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
MK6 | Application lapsed section 142(2)(f)/reg. 8.3(3) - pct applic. not entering national phase |