DE59104073D1 - Wechselspannungs-Vorschaltgerät für elektrische Entladungslampen. - Google Patents
Wechselspannungs-Vorschaltgerät für elektrische Entladungslampen.Info
- Publication number
- DE59104073D1 DE59104073D1 DE59104073T DE59104073T DE59104073D1 DE 59104073 D1 DE59104073 D1 DE 59104073D1 DE 59104073 T DE59104073 T DE 59104073T DE 59104073 T DE59104073 T DE 59104073T DE 59104073 D1 DE59104073 D1 DE 59104073D1
- Authority
- DE
- Germany
- Prior art keywords
- switch
- lamp
- supply voltage
- ballast
- half cycle
- 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.)
- Expired - Fee Related
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
- H05B41/2988—Arrangements for protecting lamps or circuits against abnormal operating conditions for protecting the lamp against abnormal operating conditions
Landscapes
- Circuit Arrangements For Discharge Lamps (AREA)
- Electroluminescent Light Sources (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE4101980A DE4101980A1 (de) | 1991-01-24 | 1991-01-24 | Wechselspannungs-vorschaltgeraet fuer elektrische entladungslampen |
Publications (1)
Publication Number | Publication Date |
---|---|
DE59104073D1 true DE59104073D1 (de) | 1995-02-09 |
Family
ID=6423585
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE4101980A Withdrawn DE4101980A1 (de) | 1991-01-24 | 1991-01-24 | Wechselspannungs-vorschaltgeraet fuer elektrische entladungslampen |
DE59104073T Expired - Fee Related DE59104073D1 (de) | 1991-01-24 | 1991-10-12 | Wechselspannungs-Vorschaltgerät für elektrische Entladungslampen. |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE4101980A Withdrawn DE4101980A1 (de) | 1991-01-24 | 1991-01-24 | Wechselspannungs-vorschaltgeraet fuer elektrische entladungslampen |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP0496040B1 (de) |
AT (1) | ATE116509T1 (de) |
DE (2) | DE4101980A1 (de) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4128314A1 (de) * | 1991-08-27 | 1993-03-04 | Diehl Gmbh & Co | Stromversorgungsschaltung |
DE59209374D1 (de) * | 1992-11-06 | 1998-07-16 | Trilux Lenze Gmbh & Co Kg | Wechselspannungs-Vorschaltgerät für elektrische Entladungslampen |
US5652481A (en) * | 1994-06-10 | 1997-07-29 | Beacon Light Products, Inc. | Automatic state tranition controller for a fluorescent lamp |
WO1997011586A1 (en) * | 1995-09-19 | 1997-03-27 | Beacon Light Products, Inc. | Method of regulating lamp current through a fluorescent lamp by pulse energizing a driving supply |
US5631523A (en) * | 1995-09-19 | 1997-05-20 | Beacon Light Products, Inc. | Method of regulating lamp current through a fluorescent lamp by pulse energizing a driving supply |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3505562A (en) * | 1968-04-29 | 1970-04-07 | Westinghouse Electric Corp | Single transistor inverter with a gas tube connected directly to the transistor |
DE2332682C2 (de) * | 1973-06-25 | 1985-06-27 | Deutsche Itt Industries Gmbh, 7800 Freiburg | Schaltung zur Helligkeitssteuerung von Gasentladungslampen |
HU173720B (hu) * | 1976-04-08 | 1979-07-28 | Egyesuelt Izzolampa | Ehlektroskhema dlja ehskpluatacii gazorazrjadnoj lampi |
US4604552A (en) * | 1984-08-30 | 1986-08-05 | General Electric Company | Retrofit fluorescent lamp energy management/dimming system |
US4873471A (en) * | 1986-03-28 | 1989-10-10 | Thomas Industries Inc. | High frequency ballast for gaseous discharge lamps |
FR2617363A1 (fr) * | 1987-06-26 | 1988-12-30 | Omega Electronics Sa | Dispositif d'alimentation d'une lampe a decharge |
DE4010435A1 (de) * | 1990-03-31 | 1991-10-02 | Trilux Lenze Gmbh & Co Kg | Vorschaltgeraet fuer eine leuchtstofflampe |
-
1991
- 1991-01-24 DE DE4101980A patent/DE4101980A1/de not_active Withdrawn
- 1991-10-12 AT AT91117443T patent/ATE116509T1/de not_active IP Right Cessation
- 1991-10-12 DE DE59104073T patent/DE59104073D1/de not_active Expired - Fee Related
- 1991-10-12 EP EP91117443A patent/EP0496040B1/de not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
ATE116509T1 (de) | 1995-01-15 |
EP0496040A1 (de) | 1992-07-29 |
EP0496040B1 (de) | 1994-12-28 |
DE4101980A1 (de) | 1992-08-06 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition | ||
8339 | Ceased/non-payment of the annual fee |