EP0677981B1 - Vorschaltgerät mit Lampenwechselerkennung für Entladungslampen - Google Patents
Vorschaltgerät mit Lampenwechselerkennung für Entladungslampen Download PDFInfo
- Publication number
- EP0677981B1 EP0677981B1 EP94105853A EP94105853A EP0677981B1 EP 0677981 B1 EP0677981 B1 EP 0677981B1 EP 94105853 A EP94105853 A EP 94105853A EP 94105853 A EP94105853 A EP 94105853A EP 0677981 B1 EP0677981 B1 EP 0677981B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- lamp
- inverter
- circuit
- transformer
- ballast
- 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 - Lifetime
Links
- 238000005259 measurement Methods 0.000 claims abstract description 20
- 238000000034 method Methods 0.000 claims abstract description 14
- 238000010438 heat treatment Methods 0.000 claims abstract description 13
- 238000004804 winding Methods 0.000 claims 9
- 238000010304 firing Methods 0.000 abstract 1
- 238000001514 detection method Methods 0.000 description 14
- 238000012544 monitoring process Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 239000003990 capacitor Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000001939 inductive effect Effects 0.000 description 2
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
Images
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
Definitions
- the invention relates to a ballast for a discharge lamp and on a method for Operation of such a ballast according to the generic terms of the independent claims. Such one The method and device are described in DE-A-34 32 266.
- EP 146 683 describes a ballast for Discharge lamps described in which the inverter is switched off when a lamp is permanently inoperative is. After this shutdown, a DC current passed through the lamp circuit. Because of this Current goes through a heating electrode of each lamp, it falls together as soon as a lamp is removed. So can a lamp change was determined by measuring this current so that after changing the lamp the Inverters are automatically switched on again can.
- this method has a disadvantage that it monitors only one of the electrodes of each lamp. It is also for circuits in which the heating currents are inductively coupled into the electrodes, only suitable to a limited extent.
- the inverter if possible operated at a frequency above the normal working frequency for the operation of the lamps lies and is therefore not sufficient to ignite them.
- FIG. 1 A first embodiment of the invention can be seen in FIG. 1.
- an inverter 1 operates in a known manner a lamp circuit which has a coupling capacitor C1, an inductor L, a lamp La with heating cathodes K1 and K2, a parallel capacitor C2 and a shunt resistor R.
- This switching technology is known to the person skilled in the art and need not be explained in more detail.
- a voltage U ILC is tapped across the resistor R which is proportional to the current in the lamp circuit. This voltage is fed to a control circuit 2.
- U ILC likewise in a manner known per se, is evaluated by a preheating controller 3 and a current limitation / ignition detection 4, which monitor the preheating current and the operating current of the lamps. In addition, it is fed to a lamp detection circuit 5.
- the control circuit 2 further comprises a control logic 6, a pulse generator 7 and an inverter control 8.
- the voltage U ILC is measured in the lamp detection 5.
- the voltage generated by the inverter 1 flows through C1, L, K1, C2, K2 and R in each measurement phase, which generates a voltage U ILC .
- the inverter no longer generates any current through R in the measurement phases, so U ILC remains zero. It can thus be determined by monitoring the voltage U ILC whether the lamp La has been removed from the lamp circuit. For this purpose, U ILC can be compared with a threshold value in the measurement phases. If U ILC is less than this threshold, the lamp is missing.
- control circuit 2 detects in this way that the lamp La has been removed, the measuring phases are continued. If a new lamp La is now used, U ILC rises again in the measurement phases. The lamp detection 5 thereby recognizes that a lamp has been inserted again, and the control logic 6 ends the measuring phases and initiates a new preheating and ignition process.
- the circuit according to FIG. 1 has the advantage that the circuit complexity is low in comparison with conventional circuits, since the voltage U ILC is required anyway for monitoring the lamp current and the preheating current, and therefore no new components are necessary here.
- the lamp detection circuit 5, the control logic 6 and the pulse generator 7 can, for. B. can be implemented as part of an integrated circuit so that they do not cause major additional costs.
- the inventive Switching also for ballasts with two lamps La, La 'can be used.
- Such circuits are used for Example the middle cathodes K2 and K1 'of the lamps in heated in a known manner via a 1: 1 transformer Tr.
- This circuit is also controlled in the same way, like that according to figure 1. one of the lamps does not ignite, so this can again be done in the current limitation / ignition detection 4 are determined, whereupon the control circuit 2 in regular intervals the inverters with a short Triggered pulse train to perform the measurement phases.
- the value of U ILC can again be measured during the measurement phases. If one of the lamps La, La 'is missing, the lack of the cathode K1 rsp. K2 'the lamp circuit is interrupted and the voltage U ILC becomes zero.
- a voltage U VCT can also be tapped from the lamp circuit in front of the transformer Tr. This voltage can be used to monitor whether K2 rsp. K1 'lie correctly in the lamp circle. If one of these cathodes is missing or damaged, the voltage across Tr and thus U VCT is higher during the measurement phases.
- the lamp detection 5 thus indicates a lack of the lamps when U ILC is less than a first threshold or (if used) U VCT is greater than a second threshold.
- the circuit according to FIG. 3 shows a ballast with only one lamp, the lower cathode K2 of which is heated inductively via the 1: 1 transformer Tr.
- a separate measurement of the lamp current (as voltage U IFL over R ') and the current through the heating cathodes (as voltage U ILC over R) can therefore take place here.
- the control circuit 2 is again designed essentially the same as in FIG. 1 and FIG. 2.
- the lamp current is regulated by supplying the voltage U IFL with a lamp current regulator 9.
- the current limitation / ignition detection 4, the preheating controller 3 and the lamp detection 5 are supplied with the voltage U ILC proportional to the current in the heating cathode K1.
- a voltage U VCT can be tapped above the transformer Tr. This voltage increases when K2 is interrupted or missing.
- the lamp detection 5 thus again indicates a lack of the lamps during the measurement phases when U ILC is less than a first threshold value or (if U VCT is also to be monitored) U VCT is greater than a second threshold value.
- FIG. 4 Another possible application of the invention results from FIG. 4.
- two lamps La, La ' are operated.
- the heating current for the lower cathode K2 'of the second lamp La' is also inductively coupled in via a second 1: 1 transformer Tr '.
- the lamp current is measured as a voltage drop U IFL over R ', the heating current as a voltage drop U ILC over R.
- U IFL is fed to the lamp current regulator, which regulates the maximum lamp current.
- U ILC is passed on the one hand to the current limitation / ignition detection 4, which monitors the maximum inverter current and the ignition of the lamps, on the other hand to the preheating controller 3, which regulates the preheating current, and is used in the lamp detection 5 as in the previous examples.
- the preheating controller 3 which regulates the preheating current, and is used in the lamp detection 5 as in the previous examples.
- the lamp detection 5 will in turn signal a lack of lamps during the measurement phases if U ILC is less than a first threshold value or U VCT is greater than a second threshold value.
Landscapes
- Circuit Arrangements For Discharge Lamps (AREA)
Description
Claims (10)
- Verfahren zum Betrieb eines Vorschaltgeräts für Entladungslampen, wobei das Vorschaltgerät zur Ansteuerung eines Lampenkreises einen Wechselrichter (1) aufweist, wobei im Lampenkreis mindestens eine Lampe (La, La') angeordnet ist, wobei im Falle eines Nichtzündens der Lampe(n) (La, La') der Wechselrichter (1) abgeschaltet und ein neuer Zündvorgang erst nach einem Lampenwechsel eingeleitet wird, und wobei zur Feststellung eines Lampenwechsels der Wechselrichter (1) wiederholt mindestens kurzzeitig während Messphasen eingeschaltet wird, dadurch gekennzeichnet, dass während den Messphasen durch Messung einer vom Wechselrichter im Lampenkreis erzeugten Spannung (UILC, UVCT) festgestellt wird, ob eine Lampe entfernt bzw. eingesetzt wurde.
- Verfahren nach Anspruch 1, dadurch gekennzeichnet, dass nach einem Nichtzünden der Lampen mit wiederholten Messphasen festgestellt wird, wann eine Lampe entfernt wurde, dass nach dem Entfernen der Lampe mit wiederholten Messphasen festgestellt wird, wann wieder alle Lampen eingesetzt sind, und dass danach der neue Zündvorgang eingeleitet wird.
- Verfahren nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, dass im Lampenkreis mindestens zwei Lampen in Serie angeordnet sind und dass während den Messphasen durch Messung von zwei vom Wechselrichter im Lampenkreis erzeugten Spannungen (UILC, UVCT) festgestellt wird, ob eine der Lampen entfernt bzw. eingesetzt wurde.
- Vorschaltgerät für Entladungslampen, welches einen Wechselrichter (1), einen vom Wechselrichter (1) angesteuerten Lampenkreis mit mindestens einer Lampe (La, La') und eine Kontrollschaltung (2) zur Kontrolle des Vorschaltgeräts aufweist, wobei mittels der Kontrollschaltung (2) feststellbar ist, ob ein Zündvorgang der Lampe(n) erfolgreich war und, bei nicht erfolgreichem Zündvorgang der Wechselrichter (1) abschaltbar ist, wobei zur Feststellung eines Lampenwechsels nach nicht erfolgreichem Zündvorgang die Kontrollschaltung (2) einen Steuergenerator (6,7) aufweist, mittels welchem der Wechselrichter (1) während wiederholten Messphasen zumindest kurzzeitig in Betrieb setzbar ist, gekennzeichnet durch eine Lampenerkennungsschaltung (5), mittels welcher während der Messphasen eine vom Wechselrichter im Lampenkreis erzeugte Spannung (UILC, UVCT) messbar ist.
- Vorschaltgerät nach Anspruch 4, wobei heizbare Elektroden (K1,K2,K1',K2') im Lampenkreis liegen, dadurch gekennzeichnet, dass in Serie zu einer der heizbaren Elektroden ein Widerstand (R, R') angeordnet ist, und dass mit der Lampenerkennungsschaltung (5) ein Spannungsabfall über dem Widerstand messbar ist.
- Vorschaltgerät nach einem der Ansprüche 4 oder 5, gekennzeichnet durch einen ersten Transformator (Tr, Tr'), einen ersten Widerstand (R) und einen zweiten Widerstand (R'), wobei mit einer Sekundärwicklung des ersten Transformators ein Heizstrom in einer masse-seitigen Heizelektrode (K2, K2') der Lampe erzeugbar ist, wobei der erste Widerstand (R) in Serie zu einer Primärwicklung des ersten Transformators (Tr, Tr') und der zweite Widerstand (R') zwischen der masse-seitigen Heizelektrode (K2, K2') und der Masse angeordnet ist.
- Vorschaltgerät nach Anspruch 6, dadurch gekennzeichnet, dass der erste Widerstand (R) zwischen der Primärwicklung des ersten Transformators und der Masse angeordnet ist und dass mit der Lampenerkennungsschaltung (5) eine Spannung über dem ersten Widerstand (R) messbar ist.
- Vorschaltgerät nach einem der Ansprüche 6 oder 7, dadurch gekennzeichnet, dass die Primärwicklung des ersten Transformators (Tr, Tr') in Serie zu einer wechselrichter-seitigen Heizelektrode (K1) liegt.
- Vorschaltgerät nach Anspruch 8, dadurch gekennzeichnet, dass im Lampenkreis zwei Lampen (La, La') in Serie angeordnet sind, wobei die wechselrichter-seitige Heizelektrode (K1) der ersten Lampe (La) in Serie zur Primärwicklung des ersten Transformators (Tr') liegt, die masse-seitige Heizelektrode (K2') der zweiten Lampe (La') über den zweiten Widerstand (R') mit der Masse verbunden ist und die beiden übrigen Heizelektroden (K1, K1') der Lampen in Serie mit einer Sekundärwicklung eines zweiten Transformators (Tr) liegen, und wobei eine Primärwicklung des zweiten Transformators (Tr) in Serie zur Primärwicklung des ersten Transformators (Tr') liegt.
- Vorschaltgerät nach Anspruch 9, dadurch gekennzeichnet, dass mit der Lampenerkennungsschaltung (5) eine wechselrichter-seitige Spannung (UVCT) an der Primärwicklung des zweiten Transformators (Tr) messbar ist.
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT94105853T ATE194749T1 (de) | 1994-04-15 | 1994-04-15 | Vorschaltgerät mit lampenwechselerkennung für entladungslampen |
EP94105853A EP0677981B1 (de) | 1994-04-15 | 1994-04-15 | Vorschaltgerät mit Lampenwechselerkennung für Entladungslampen |
DE59409443T DE59409443D1 (de) | 1994-04-15 | 1994-04-15 | Vorschaltgerät mit Lampenwechselerkennung für Entladungslampen |
US08/421,922 US5550433A (en) | 1994-04-15 | 1995-04-14 | Driver circuit for discharge lamps |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP94105853A EP0677981B1 (de) | 1994-04-15 | 1994-04-15 | Vorschaltgerät mit Lampenwechselerkennung für Entladungslampen |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0677981A1 EP0677981A1 (de) | 1995-10-18 |
EP0677981B1 true EP0677981B1 (de) | 2000-07-12 |
Family
ID=8215865
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP94105853A Expired - Lifetime EP0677981B1 (de) | 1994-04-15 | 1994-04-15 | Vorschaltgerät mit Lampenwechselerkennung für Entladungslampen |
Country Status (4)
Country | Link |
---|---|
US (1) | US5550433A (de) |
EP (1) | EP0677981B1 (de) |
AT (1) | ATE194749T1 (de) |
DE (1) | DE59409443D1 (de) |
Families Citing this family (24)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5574336A (en) * | 1995-03-28 | 1996-11-12 | Motorola, Inc. | Flourescent lamp circuit employing a reset transistor coupled to a start-up circuit that in turn controls a control circuit |
KR0163903B1 (ko) * | 1995-06-05 | 1999-04-15 | 김광호 | 전자식 안정기의 피드백 제어시스템 |
BE1009717A3 (nl) * | 1995-10-20 | 1997-07-01 | Philips Electronics Nv | Schakelinrichting. |
DE19546588A1 (de) * | 1995-12-13 | 1997-06-19 | Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh | Verfahren und Schaltungsanordnung zum Betrieb einer Entladungslampe |
EP0901315A4 (de) * | 1997-02-28 | 2001-01-31 | Toshiba Lighting & Technology | Beleuchtungsausrüstung und -anlage mit entladungslampe |
DE69828484T2 (de) * | 1997-04-17 | 2005-08-25 | Toshiba Lighting & Technology Corp. | Entladungslampe und beleuchtungsvorrichtung |
EP0889675A1 (de) * | 1997-07-02 | 1999-01-07 | MAGNETEK S.p.A. | Elektronisches Vorhaltgerät mit Lampentyperkennung |
DE59804841D1 (de) * | 1997-12-23 | 2002-08-22 | Tridonicatco Gmbh & Co Kg | Elektronisches vorschaltgerät |
WO1999034649A1 (de) * | 1997-12-23 | 1999-07-08 | Tridonic Bauelemente Gmbh | Lampenwechselerkennungsverfahren und elektronisches vorschaltgerät zum betreiben von gasentladungslampen mit hilfe eines derartigen lampenwechselerkennungsverfahrens |
KR100321964B1 (ko) * | 1998-01-05 | 2002-02-02 | 인터내셔널 렉터파이어 코퍼레이션 | 전집적 안정기 집적회로 |
US6331755B1 (en) * | 1998-01-13 | 2001-12-18 | International Rectifier Corporation | Circuit for detecting near or below resonance operation of a fluorescent lamp driven by half-bridge circuit |
US6225760B1 (en) * | 1998-07-28 | 2001-05-01 | Lutron Electronics Company, Inc. | Fluorescent lamp dimmer system |
US7412654B1 (en) * | 1998-09-24 | 2008-08-12 | Apple, Inc. | Apparatus and method for handling special windows in a display |
US6169375B1 (en) | 1998-10-16 | 2001-01-02 | Electro-Mag International, Inc. | Lamp adaptable ballast circuit |
WO2000024233A2 (en) * | 1998-10-16 | 2000-04-27 | Electro-Mag International, Inc. | Ballast circuit |
ATE245337T1 (de) | 1999-05-25 | 2003-08-15 | Tridonicatco Gmbh & Co Kg | Elektronisches vorschaltgerät für mindestens eine niederdruck-entladungslampe |
DE10013342A1 (de) * | 2000-03-17 | 2001-09-27 | Trilux Lenze Gmbh & Co Kg | Verfahren und Schaltungsanordnung zur Erzeugung einer Zündspannung für Leuchtstofflampen |
AU732605B1 (en) * | 2000-06-14 | 2001-04-26 | Brenex Electrics Pty Limited | Control circuits for fluorescent tubes |
US6448716B1 (en) * | 2000-08-17 | 2002-09-10 | Power Signal Technologies, Inc. | Solid state light with self diagnostics and predictive failure analysis mechanisms |
DE102004018345A1 (de) * | 2004-04-15 | 2005-11-03 | Tridonicatco Gmbh & Co. Kg | Schaltungsanordnung und Verfahren zum Zünden einer Gasentladungslampe mit zeitbegrenzter Startphase |
TWM265641U (en) * | 2004-06-09 | 2005-05-21 | Rilite Corportation | Double shielded electroluminescent panel |
WO2007126737A2 (en) * | 2006-04-03 | 2007-11-08 | Ceelite Llc | Constant brightness control for electro-luminescent lamp |
US8018173B2 (en) * | 2006-09-03 | 2011-09-13 | Fulham Company Ltd. | Ballasts for fluorescent lamps |
DE102007047141A1 (de) * | 2007-10-02 | 2009-04-09 | Tridonicatco Gmbh & Co. Kg | Betriebsgerät zum Steuern des Einbrennvorganges einer Lampe |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1452640A (fr) * | 1965-06-02 | 1966-04-15 | Accumulateurs Fixes | Installation électrique de secours |
US4063108A (en) * | 1976-01-02 | 1977-12-13 | Keith Karl Klett | Inverter lockout circuit |
US5426347A (en) * | 1980-08-14 | 1995-06-20 | Nilssen; Ole K. | Lighting system with emergency standby feature |
EP0146683B1 (de) * | 1981-07-31 | 1987-11-19 | Siemens Aktiengesellschaft | Wechselrichter |
CH663508A5 (de) * | 1983-09-06 | 1987-12-15 | Knobel Elektro App | Elektronisches vorschaltgeraet fuer fluoreszenzlampen sowie verfahren zu dessen betrieb. |
DE4100349C2 (de) * | 1990-01-31 | 1994-04-28 | Siemens Ag | Elektronisches Vorschaltgerät |
-
1994
- 1994-04-15 AT AT94105853T patent/ATE194749T1/de not_active IP Right Cessation
- 1994-04-15 EP EP94105853A patent/EP0677981B1/de not_active Expired - Lifetime
- 1994-04-15 DE DE59409443T patent/DE59409443D1/de not_active Expired - Lifetime
-
1995
- 1995-04-14 US US08/421,922 patent/US5550433A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
ATE194749T1 (de) | 2000-07-15 |
DE59409443D1 (de) | 2000-08-17 |
EP0677981A1 (de) | 1995-10-18 |
US5550433A (en) | 1996-08-27 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP0677981B1 (de) | Vorschaltgerät mit Lampenwechselerkennung für Entladungslampen | |
EP1519638B1 (de) | Verfahren zum Betreiben mindestens einer Niederdruckentladungslampe | |
EP1103165B1 (de) | Elektronisches vorschaltgerät für mindestens eine niederdruck-entladungslampe | |
DE60125214T2 (de) | Ballaststeuer-ic mit leistungsfaktorkorrektur | |
DE19533103B4 (de) | Schaltungsanordnung zum Betrieb einer Entladungslampe | |
EP0708579B1 (de) | Verfahren zum Betrieb einer Entladungslampe und Schaltungsanordnung zum Betrieb einer Entladungslampe | |
DE69707807T2 (de) | Stromversorgung zum betreiben und zünden einer entladungslampe | |
DE3432266A1 (de) | Elektronisches vorschaltgeraet fuer fluoreszenzlampen sowie verfahren zu dessen betrieb | |
DE69327426T2 (de) | Überwachungsgerät für eine Leuchtstoffröhre | |
DE69120846T2 (de) | Durch zwei verschiedene Leistungsversorgungen betriebenes Leuchtstofflampen-Vorschaltgerät | |
EP2377372B1 (de) | Verfahren, betriebsgerät und beleuchtungssystem | |
EP1103166B1 (de) | Elektronisches vorschaltgerät für mindestens eine niederdruck-entladungslampe | |
DE102008027029A1 (de) | Lampentyperkennung durch Leistungsfaktorkorrekturschaltung | |
DE69911376T2 (de) | Verfahren und anordnung zum betreiben von elektronischen vorschaltgeräten für entladungslampen hoher intensität | |
DE69709652T2 (de) | Universeller elektronischer starter für starkstromentladungslampen | |
WO2003024162A1 (de) | Verfahren und vorrichtung zum energiesparenden betreiben einer leuchtstoffröhre | |
EP1276355B1 (de) | Schaltungsanordnung zum Bestimmen eines Vorheizleistungswerts | |
DE3916801A1 (de) | Verfahren und vorrichtung zum feststellen von fehlern im energieversorgungssystem eines magnetrons | |
EP1843645B1 (de) | Schaltungsanordnung für Hochdruck-Gasentladungslampen | |
EP1492393B1 (de) | Verfahren zum Betrieb mindestens einer Niederdruckentladungslampe und Betriebsgerät für mindestens eine Niederdruckentladungslampe | |
DE102006031341A1 (de) | Elektronisches Lampenvorschaltgerät zur Regelung von Betriebsparametern einer HF-betriebenen Leuchtstofflampe | |
DE69817326T2 (de) | Vorschaltgerät | |
EP1477046B1 (de) | Lampensensor für ein vorschaltegerät zum betrieb einer gasentladungslampe | |
EP1280388B1 (de) | Elektronisches Vorschaltgerät mit Vorheizbetrieb | |
EP1992203B1 (de) | Elektronisches vorschaltgerät und verfahren zum betreiben einer elektrischen lampe |
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: A1 Designated state(s): AT CH DE FR GB IT LI NL |
|
RBV | Designated contracting states (corrected) |
Designated state(s): AT CH DE FR GB IT LI NL |
|
17P | Request for examination filed |
Effective date: 19960411 |
|
17Q | First examination report despatched |
Effective date: 19980715 |
|
GRAG | Despatch of communication of intention to grant |
Free format text: ORIGINAL CODE: EPIDOS AGRA |
|
GRAG | Despatch of communication of intention to grant |
Free format text: ORIGINAL CODE: EPIDOS AGRA |
|
GRAH | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOS IGRA |
|
GRAH | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOS IGRA |
|
RIC1 | Information provided on ipc code assigned before grant |
Free format text: 7H 05B 41/282 A |
|
GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): AT CH DE FR GB IT LI NL |
|
REF | Corresponds to: |
Ref document number: 194749 Country of ref document: AT Date of ref document: 20000715 Kind code of ref document: T |
|
REG | Reference to a national code |
Ref country code: CH Ref legal event code: NV Representative=s name: E. BLUM & CO. PATENTANWAELTE Ref country code: CH Ref legal event code: EP |
|
GBT | Gb: translation of ep patent filed (gb section 77(6)(a)/1977) |
Effective date: 20000726 |
|
REF | Corresponds to: |
Ref document number: 59409443 Country of ref document: DE Date of ref document: 20000817 |
|
ITF | It: translation for a ep patent filed | ||
ET | Fr: translation filed | ||
PLBE | No opposition filed within time limit |
Free format text: ORIGINAL CODE: 0009261 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT |
|
26N | No opposition filed | ||
REG | Reference to a national code |
Ref country code: GB Ref legal event code: IF02 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: NL Payment date: 20070413 Year of fee payment: 14 |
|
REG | Reference to a national code |
Ref country code: CH Ref legal event code: PFA Owner name: KNOBEL AG LICHTTECHNISCHE KOMPONENTEN Free format text: KNOBEL AG LICHTTECHNISCHE KOMPONENTEN# #CH-8755 ENNENDA (CH) -TRANSFER TO- KNOBEL AG LICHTTECHNISCHE KOMPONENTEN# #CH-8755 ENNENDA (CH) |
|
NLV4 | Nl: lapsed or anulled due to non-payment of the annual fee |
Effective date: 20081101 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: NL Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20081101 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: CH Payment date: 20090310 Year of fee payment: 16 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: AT Payment date: 20090416 Year of fee payment: 16 |
|
REG | Reference to a national code |
Ref country code: CH Ref legal event code: PL |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: AT Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20100415 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: LI Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20100430 Ref country code: CH Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20100430 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: FR Payment date: 20110516 Year of fee payment: 18 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: IT Payment date: 20110430 Year of fee payment: 18 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: DE Payment date: 20120702 Year of fee payment: 19 |
|
REG | Reference to a national code |
Ref country code: FR Ref legal event code: ST Effective date: 20121228 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: FR Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20120430 Ref country code: IT Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20120415 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: GB Payment date: 20130430 Year of fee payment: 20 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: DE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20131101 |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R119 Ref document number: 59409443 Country of ref document: DE Effective date: 20131101 |
|
REG | Reference to a national code |
Ref country code: GB Ref legal event code: PE20 Expiry date: 20140414 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: GB Free format text: LAPSE BECAUSE OF EXPIRATION OF PROTECTION Effective date: 20140414 |