EP0201624A3 - Circuit ballast pour lampe fluorescente - Google Patents
Circuit ballast pour lampe fluorescente Download PDFInfo
- Publication number
- EP0201624A3 EP0201624A3 EP85111393A EP85111393A EP0201624A3 EP 0201624 A3 EP0201624 A3 EP 0201624A3 EP 85111393 A EP85111393 A EP 85111393A EP 85111393 A EP85111393 A EP 85111393A EP 0201624 A3 EP0201624 A3 EP 0201624A3
- Authority
- EP
- European Patent Office
- Prior art keywords
- lamp
- current
- fluorescent lamp
- bridge circuit
- current sensor
- 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.)
- Withdrawn
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
- H05B41/36—Controlling
- H05B41/38—Controlling the intensity of light
- H05B41/39—Controlling the intensity of light continuously
- H05B41/392—Controlling the intensity of light continuously using semiconductor devices, e.g. thyristor
-
- 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)
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19853517297 DE3517297C1 (de) | 1985-05-14 | 1985-05-14 | Vorschaltgerät für Entladungslampen |
DE3517297 | 1985-05-14 | ||
DE19853524681 DE3524681A1 (de) | 1985-07-11 | 1985-07-11 | Dimmerschaltung fuer ein elektronisches leuchtstofflampen-vorschaltgeraet |
DE3524681 | 1985-07-11 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0201624A2 EP0201624A2 (fr) | 1986-11-20 |
EP0201624A3 true EP0201624A3 (fr) | 1987-03-25 |
Family
ID=25832227
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP85111393A Withdrawn EP0201624A3 (fr) | 1985-05-14 | 1985-09-10 | Circuit ballast pour lampe fluorescente |
Country Status (1)
Country | Link |
---|---|
EP (1) | EP0201624A3 (fr) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3540985A1 (de) * | 1985-11-19 | 1987-05-21 | Philips Patentverwaltung | Schaltungsanordnung zum wechselstrombetrieb von gasentladungslampen |
NL8800015A (nl) * | 1988-01-06 | 1989-08-01 | Philips Nv | Elektrische inrichting voor het ontsteken en voeden van een gasontladingslamp. |
GB9027282D0 (en) * | 1990-12-17 | 1991-02-06 | Tunewell Transformers Ltd | Improvements in or relating to a method of and apparatus for operating an electric discharge lamp |
DE19608819C2 (de) | 1996-03-07 | 1999-09-09 | Heraeus Med Gmbh | Elektrische Versorgungs-Schaltung für Lampen |
DE19758830B4 (de) * | 1997-03-04 | 2017-05-11 | Tridonic Gmbh & Co Kg | Elektronisches Vorschaltgerät |
DE19757295B4 (de) * | 1997-03-04 | 2005-08-04 | Tridonicatco Gmbh & Co. Kg | Elektronisches Vorschaltgerät |
DE102008031409A1 (de) * | 2008-07-02 | 2010-01-07 | Tridonicatco Gmbh & Co. Kg | Erkennung des Typs einer an einem Betriebsgerät angeschlossenen Gasentladungslampe |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3999100A (en) * | 1975-05-19 | 1976-12-21 | Morton B. Leskin | Lamp power supply using a switching regulator and commutator |
US4260932A (en) * | 1978-10-12 | 1981-04-07 | Vance Johnson | Method and circuit for facilitating the starting and steady state flickerless operation of a discharge lamp |
-
1985
- 1985-09-10 EP EP85111393A patent/EP0201624A3/fr not_active Withdrawn
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3999100A (en) * | 1975-05-19 | 1976-12-21 | Morton B. Leskin | Lamp power supply using a switching regulator and commutator |
US4260932A (en) * | 1978-10-12 | 1981-04-07 | Vance Johnson | Method and circuit for facilitating the starting and steady state flickerless operation of a discharge lamp |
Also Published As
Publication number | Publication date |
---|---|
EP0201624A2 (fr) | 1986-11-20 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
AK | Designated contracting states |
Kind code of ref document: A2 Designated state(s): AT BE CH DE FR GB IT LI LU NL SE |
|
PUAL | Search report despatched |
Free format text: ORIGINAL CODE: 0009013 |
|
AK | Designated contracting states |
Kind code of ref document: A3 Designated state(s): AT BE CH DE FR GB IT LI LU NL SE |
|
17P | Request for examination filed |
Effective date: 19870502 |
|
17Q | First examination report despatched |
Effective date: 19890428 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
18D | Application deemed to be withdrawn |
Effective date: 19910213 |
|
RIN1 | Information on inventor provided before grant (corrected) |
Inventor name: HASEMANN, FRED, DR.-ING. Inventor name: WITTIG, NORBERT, DIPL.-ING. Inventor name: MERTENS, FERDINAND, DIPL.-ING. |