EP1025746B1 - Schaltungsanordnung zum betrieb von mindestens zwei entladungslampen - Google Patents
Schaltungsanordnung zum betrieb von mindestens zwei entladungslampen Download PDFInfo
- Publication number
- EP1025746B1 EP1025746B1 EP99924760A EP99924760A EP1025746B1 EP 1025746 B1 EP1025746 B1 EP 1025746B1 EP 99924760 A EP99924760 A EP 99924760A EP 99924760 A EP99924760 A EP 99924760A EP 1025746 B1 EP1025746 B1 EP 1025746B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- coupling capacitor
- transistor
- bridge inverter
- circuit
- emitter
- 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
- 239000003990 capacitor Substances 0.000 claims abstract description 40
- 230000008878 coupling Effects 0.000 claims abstract description 39
- 238000010168 coupling process Methods 0.000 claims abstract description 39
- 238000005859 coupling reaction Methods 0.000 claims abstract description 39
- 230000000694 effects Effects 0.000 description 15
- 230000002159 abnormal effect Effects 0.000 description 3
- 230000005669 field effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 231100001261 hazardous Toxicity 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
- 238000011144 upstream manufacturing Methods 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 circuit arrangement for operating at least two Discharge lamps according to claim 1.
- the circuit arrangement disclosed in the published patent application EP 0 753 987 A1 has a half-bridge inverter with a shutdown device that the half-bridge inverter in the event of an abnormal operating state - for example in the event of an unwanted or defective lamp - switches off.
- the shutdown device has a field effect transistor, whose drain-source path in the control circuit a half-bridge inverter transistor is arranged and the control circuit switches between a low-resistance and a high-resistance state. If an abnormal operating state occurs, the shutdown takes place synchronously to the blocking phase of the half-bridge inverter transistor in its control circuit the field effect transistor is arranged.
- the shutdown device of this Circuit arrangement switches the half-bridge inverter when the ignition is unwanted Lamp reliably off, but it is generally too insensitive to the Occurrence of the so-called rectification effect of the discharge lamp, which follows is explained in more detail.
- the rectification effect of the discharge lamp in discharge lamps causes that are operated on a half-bridge inverter, a significant deviation the voltage drop across the coupling capacitor or at the coupling capacitors from the normal value, which is usually half the value the input voltage of the half-bridge inverter.
- With self-oscillating Half-bridge inverters cause this deviation in the voltage drop across the Coupling capacitor or the coupling capacitors so that the vibration of the Half-bridge inverter is stopped because the supply voltage is one of the two half-bridge branches in this case too low to maintain the Feedback is.
- the vibration of the half-bridge inverter immediately after their interruption by starting the half-bridge inverter restarted when the shutdown device is not is triggered.
- the discharge lamp affected by the rectification effect not switched off reliably, but instead flickers.
- the published patent application EP 0 886 460 A1 describes a half-bridge inverter for operating a discharge lamp with a circuit for detecting the occurrence of the rectification effect in the discharge lamp. This circuit monitors the Voltage drop across the coupling capacitor.
- the laid-open specification WO 97/43879 discloses a ballast for operation a discharge lamp with means for detecting the rectifier effect in the Discharge lamp.
- the published patent application EP 0 681 414 A2 describes a ballast for operation of discharge lamps with an inverter and a circuit that the occurrence a DC component monitored over the lamp electrodes and the oscillation of the inverter may stop.
- the object of the invention to provide an improved circuit arrangement for operation of at least two discharge lamps to provide the disadvantages of the prior art which does not have technology.
- the circuit arrangement is intended to occur the rectification effect in the at least two discharge lamps and in this case switch off the half-bridge inverter permanently or at least a limitation of the voltage and / or the current in the load circuit to harmless Ensure values.
- the rectification effect occurs in the discharge lamps a significant deviation in the voltage drop at the Coupling capacitors from their normal value, which is half the size of the input voltage of the half-bridge inverter.
- the occurrence of the rectification effect in the discharge lamps is detected by using their help deviations in the voltage drop across the coupling capacitors from their setpoint are determined, one coupling capacitor to the other Coupling capacitor serves as a reference voltage source, and a corresponding one Output signal generated and the control device of the half-bridge inverter is supplied to either switch off the half-bridge inverter or for example by increasing the frequency, the voltage and / or the current to regulate down to non-hazardous values in the load circuit.
- the output signal of the detector circuit is supplied to the half-bridge inverter when an abnormal operating condition occurs, that is, when a fault occurs.
- the detector circuit advantageously consists of at least two transistors and a voltage divider.
- the transistors are advantageously around pnp bipolar transistors.
- the voltage divider of the detector circuit advantageously has a first and a second connection and a first and a second center tap, the first connection with the at least one Coupling capacitor and the second terminal connected to the reference voltage source is, and wherein the first center tap with the emitter of the first pnp transistor and the base of the second pnp transistor is connected while the second center tap on the emitter of the second pnp transistor and on the base of the first pnp transistor is connected.
- the collector connections of the pnp transistors are advantageously connected to the voltage output of the detector circuit connected.
- the first embodiment ( Figure 1) describes the application of the invention to a circuit arrangement for operating two fluorescent lamps connected in parallel LP3, LP4.
- This circuit arrangement has two as a half-bridge inverter interconnected npn transistors Q30, Q31, their control electrodes with the control device A3 of the half-bridge inverter are connected.
- the half-bridge inverter Q30, Q31 receives its input or Supply voltage via the DC voltage connections j30, j33.
- the DC voltage connection j33 is at ground potential and at the DC voltage connection A voltage of approximately +400 V is provided for j30.
- This input or supply voltage is in a known manner, for example with the help an upstream step-up converter, not shown in the figures, from the rectified mains AC voltage generated.
- the control device A3 of the half-bridge inverter Q30, Q31 is as Integrated circuit executed the switching clock of the transistors Q30, Q31 certainly.
- two parallel load circuits designed as series resonance circuits are connected. Both load circuits each have a resonance inductance L3 or L4, a resonance capacitor C30 or C31 and a fluorescent lamp LP3 or LP4 on.
- a coupling capacitor C32 or C33 is connected to both load circuits.
- half is connected to both coupling capacitors C32, C33 Supply voltage U / 2 of the half-bridge inverter Q30, Q31.
- the potentials at the taps M31, M32 are therefore ideally U / 2, that is approximately +200 V.
- a voltage input is off the voltage dividing resistors R30, R31, R32 and the PNP transistors Q32, Q33 existing detector circuit connected.
- the voltage output of this detector circuit is from the interconnected collectors of the pnp transistors Q32, Q33 formed. It is with the control circuit A3 of the half-bridge inverter Q30, Q31 connected.
- the first center tap j31 of the voltage divider R30, R31, R32 is connected to the emitter of the first PNP transistor Q32 and connected to the base of the second pnp transistor Q33 while its second center tap j32 with the emitter of the second pnp transistor Q33 and the base of the first pnp transistor Q32 is connected.
- the detector circuit of the first embodiment monitors the voltage drop across both coupling capacitors C32 and C33, in that a coupling capacitor C32 or C33 connects the other coupling capacitor C33 or C32 serves as a reference voltage source.
- the first pnp transistor Q32 turned on.
- the Voltage drop at the second coupling capacitor C33 from the ideal value U / 2 200 V deviate.
- the voltage drop across the second coupling capacitor increases C33 to more than 300 V, the second pnp transistor Q33 connected through.
- the detector circuit In all of the aforementioned cases, in which one of the two pnp transistors Q32 or Q33 is turned on, the detector circuit generates at its voltage output a control signal for the control device A3 of the half-bridge inverter Q30, Q31, which is preferably used to switch off the half-bridge inverter Q30, Q31 is used.
- the control device A3 of the half-bridge inverter Q30, Q31 which is preferably used to switch off the half-bridge inverter Q30, Q31 is used.
- the detector circuit of the first exemplary embodiment is not.
- a suitable one Dimensioning of the components used in the first embodiment is in Table 1 given.
- FIG. 2 shows a detector circuit with three voltage inputs E1, E2, E3 for a circuit arrangement with a half-bridge inverter, at the center tap three load circuits connected in parallel are connected.
- Each of the voltage inputs E1, E2, E3 is with the connection of the Coupling capacitor connected to one of the load circuits.
- This detector circuit compares the voltage drop across the coupling capacitors of the three load circuits. It works completely analogously to the detector circuit of the first embodiment.
- the detector circuit shown in FIG. 2 consists of three pnp transistors Q42, Q43, Q44, three base-emitter resistors R41, R43, R45 and three series resistors R40, R42, R44.
- the interconnected collectors of the PNP transistors Q42, Q43, Q44 form the voltage output of the detector circuit.
- the transistor Q44 or Q42 or Q43 turns on. Will the potential at input E1 or E2 or E3 compared to the potential at the other two Inputs lowered above the response threshold, the transistor switches Q42 or Q43 or Q44.
- This detector circuit can be by adding further pnp transistors and base-emitter resistors as well as others Adapt series resistors to more than three load circuits connected in parallel.
- the invention is not limited to the exemplary embodiments explained in more detail above.
- the pnp transistors of the detector circuits can also be replaced by field effect transistors with a similar current-voltage characteristic.
- npn transistors can also be used for the detector circuit. It then only has to be ensured with suitable means that the control device of the half-bridge inverter is acted upon by the detector circuit with control signals of the correct polarity.
- Dimensioning of the electrical components according to the first embodiment L3, L4 1.6 mH C30, C31 7.5 nF C32, C33 68 nF R30, R32 390 k ⁇ R31 4.7 k ⁇ Q32, Q33 BF421
Landscapes
- Circuit Arrangements For Discharge Lamps (AREA)
- Inverter Devices (AREA)
Description
- Figur 1
- eine schematische Schaltskizze eines ersten Ausführungsbeispiels der erfindungsgemäßen Schaltungsanordnung zum Betrieb zweier, parallel geschalteter Leuchtstofflampen
- Figur 2
- eine schematische Schaltskizze der Detektorschaltung gemäß eines zweiten Ausführungsbeispiels der Erfindung für den Betrieb von mehr als zwei Lampen
| Dimensionierung der elektrischen Bauteile gemäß des ersten Ausführungsbeispiels | |
| L3, L4 | 1,6 mH |
| C30, C31 | 7,5 nF |
| C32, C33 | 68 nF |
| R30, R32 | 390 kΩ |
| R31 | 4,7 kΩ |
| Q32, Q33 | BF421 |
Claims (2)
- Schaltungsanordnung zum Betrieb von mindestens zwei parallel geschalteten Entladungslampen, wobei die Schaltungsanordnung folgende Merkmale aufweist:einen Halbbrückenwechselrichter (Q30, Q31) mit mindestens zwei daran angeschlossenen, parallel geschalteten und als Serienresonanzkreise ausgebildeten Lastkreisen (L3, C30, LP3; L4, C31, LP4),jeweils einen Koppelkondensator (C32, C33) für die mindestens zwei parallel geschalteten Lastkreise (L3, C30, LP3; L4, C31, LP4), wobei jeder Koppelkondensator jeweils mit einem Lastkreis verbunden ist,eine Ansteuerungsvorrichtung (A3) für den Halbbrückenwechselrichter (Q30, Q31),die Lastkreise (L3, C30, LP3; L4, C31, LP4) Anschlüsse für mindestens eine Entladungslampe (LP3, LP4) aufweisen, undeine Detektorschaltung zum Vergleichen des Spannungsabfalls an den Koppelkondensatoren (C32, C33) mit einer Referenzspannung und zur Erzeugung eines Ausgangssignals zur Ansteuerung des Halbbrückenwechselrichters (Q30, Q31), wobei die Detektorschaltung aus Spannungsteilerwiderständen (R30-R32; R40-R45) und mindestens zwei Transistoren (Q32, Q33; Q42-Q44) besteht, die derart verbunden sind, dass die Detektorschaltung den Spannungsabfall an den Koppelkondensatoren (C32, C33) überwacht, indem ein Koppelkondensator (C33) dem jeweils anderen Koppelkondensator (C32) bzw. den anderen Koppelkondensatoren als Referenzspannungsquelle dient.
- Schaltungsanordnung nach Anspruch 1, dadurch gekennzeichnet, dass die Transistoren (Q32, Q33; Q42-Q44) Bipolar-Transistoren sind undDie Kollektoren der Transistoren (Q32, Q33; Q42-Q44) miteinander verbunden sind und den Ausgang der Detektorschaltung bilden,Die Basis eines ersten Transistors (Q32; Q42) über einen ersten Vorwiderstand (R32; R40) mit dem auf positiven Potential liegenden Anschluss (M32; E1) eines ersten Koppelkondensators (C33) verbunden ist,Die Basis des ersten Transistors (Q32; Q42) über einen Basis-Emitter-Widerstand (R31; R41) mit dem Emitter des ersten Transistors (Q32; Q42) verbunden ist,Der Emitter des ersten Transistors (Q32; Q42) über einen zweiten Vorwiderstand (R30; R42) mit dem auf positiven Potential liegenden Anschluss (M31; E2) eines zweiten Koppelkondensators (C32) verbunden ist,Die Basis eines zweiten Transistors (Q33; Q43) über den zweiten Vorwiderstand (R30; R42) mit dem auf positiven Potential liegenden Anschluss (M31; E2) des zweiten Koppelkondensators (C32) verbunden ist,Die Basis des zweiten Transistors (Q33; Q43) über einen Basis-Emitter-Widerstand (R31; R43) mit dem Emitter des zweiten Transistors (Q33; Q43) verbunden ist, undDer Emitter des zweiten Transistors (Q33; Q43) über den ersten Vorwiderstand (R32) mit dem auf positiven Potential liegenden Anschluss (M32) des ersten Koppelkondensators (C33) oder über einen weiteren Vorwiderstand (R44) mit dem auf positiven Potential liegenden Anschluss (E3) eines weiteren Koppelkondensators verbunden ist.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19837728A DE19837728A1 (de) | 1998-08-20 | 1998-08-20 | Schaltungsanordnung zum Betrieb mindestens einer Entladungslampe |
| DE19837728 | 1998-08-20 | ||
| PCT/DE1999/001010 WO2000011916A1 (de) | 1998-08-20 | 1999-04-01 | Schaltungsanordnung zum betrieb mindestens einer entladungslampe |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1025746A1 EP1025746A1 (de) | 2000-08-09 |
| EP1025746B1 true EP1025746B1 (de) | 2002-09-04 |
Family
ID=7878098
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP99924760A Expired - Lifetime EP1025746B1 (de) | 1998-08-20 | 1999-04-01 | Schaltungsanordnung zum betrieb von mindestens zwei entladungslampen |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US6288500B1 (de) |
| EP (1) | EP1025746B1 (de) |
| JP (1) | JP4315598B2 (de) |
| AT (1) | ATE223638T1 (de) |
| CA (1) | CA2306815A1 (de) |
| DE (2) | DE19837728A1 (de) |
| WO (1) | WO2000011916A1 (de) |
Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FI106426B (fi) * | 1999-03-31 | 2001-01-31 | Innoware Oy | Loistelamppujen liitäntälaite |
| DE69927990T2 (de) * | 1999-12-24 | 2006-08-03 | Stmicroelectronics S.R.L., Agrate Brianza | Spannungsumrichter mit einer selbstschwingenden Halbbrücke nstruktur |
| WO2001098853A1 (en) | 2000-06-19 | 2001-12-27 | International Rectifier Corporation | Ballast control ic with minimal internal and external components |
| DE10108138A1 (de) * | 2001-02-20 | 2002-08-29 | Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh | Schutzschaltung für eine Leuchstofflampe |
| WO2003041457A1 (en) * | 2001-11-07 | 2003-05-15 | Koninklijke Philips Electronics N.V. | Ballast circuit arrangement for operating a discharge lamp with end of lamp life detection |
| DE602005020520D1 (de) * | 2005-05-04 | 2010-05-20 | St Microelectronics Srl | |
| DE202005013675U1 (de) * | 2005-08-30 | 2005-12-15 | Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH | EVG für Entladungslampen mit EoL Überwachungsschaltung |
| ATE498989T1 (de) | 2007-03-29 | 2011-03-15 | Osram Gmbh | Schaltungsanordnung zur ansteuerung mindestens einer leuchtstofflampe |
| DE102009004852A1 (de) * | 2009-01-16 | 2010-07-29 | Osram Gesellschaft mit beschränkter Haftung | Detektorschaltung und Verfahren zur Ansteuerung einer Leuchtstofflampe |
| DE102009004851A1 (de) * | 2009-01-16 | 2010-07-29 | Osram Gesellschaft mit beschränkter Haftung | Detektorschaltung und Verfahren zur Ansteuerung einer Leuchtstofflampe |
| DE102009007159A1 (de) | 2009-02-03 | 2010-10-07 | Osram Gesellschaft mit beschränkter Haftung | Schaltungsanordnung zum Betreiben eines Konverters |
| DE102012207002A1 (de) * | 2011-12-23 | 2013-06-27 | Tridonic Gmbh & Co. Kg | Verfahren, Betriebsgerät und Beleuchtungssystem |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW307980B (de) * | 1994-04-28 | 1997-06-11 | Toshiba Light Technic Kk | |
| US5475284A (en) | 1994-05-03 | 1995-12-12 | Osram Sylvania Inc. | Ballast containing circuit for measuring increase in DC voltage component |
| US5783911A (en) | 1995-07-12 | 1998-07-21 | Patent-Treuhand-Gesellschaft Fuer Elektrische Gluehlampen Mbh | Circuit arrangement for operating electric lamps, and operating method for electric lamps |
| WO1997027726A1 (de) * | 1996-01-26 | 1997-07-31 | Tridonic Bauelemente Gmbh | Verfahren und elektronische steuerschaltung zum regeln des betriebsverhaltens von gasentladungslampen |
| US5703439A (en) * | 1996-05-10 | 1997-12-30 | General Electric Company | Lamp power supply circuit with electronic feedback circuit for switch control |
| US5808422A (en) | 1996-05-10 | 1998-09-15 | Philips Electronics North America | Lamp ballast with lamp rectification detection circuitry |
| FI102347B1 (fi) | 1997-06-18 | 1998-11-13 | Helvar Oy | Lampun tasasuuntauksen tunnistuspiirillä varustettu elektroninen liitäntälaite |
-
1998
- 1998-08-20 DE DE19837728A patent/DE19837728A1/de not_active Withdrawn
-
1999
- 1999-04-01 AT AT99924760T patent/ATE223638T1/de active
- 1999-04-01 JP JP2000567056A patent/JP4315598B2/ja not_active Expired - Fee Related
- 1999-04-01 DE DE59902543T patent/DE59902543D1/de not_active Expired - Lifetime
- 1999-04-01 EP EP99924760A patent/EP1025746B1/de not_active Expired - Lifetime
- 1999-04-01 CA CA002306815A patent/CA2306815A1/en not_active Abandoned
- 1999-04-01 US US09/509,986 patent/US6288500B1/en not_active Expired - Lifetime
- 1999-04-01 WO PCT/DE1999/001010 patent/WO2000011916A1/de not_active Ceased
Also Published As
| Publication number | Publication date |
|---|---|
| DE19837728A1 (de) | 2000-02-24 |
| WO2000011916A1 (de) | 2000-03-02 |
| EP1025746A1 (de) | 2000-08-09 |
| JP2002523888A (ja) | 2002-07-30 |
| DE59902543D1 (de) | 2002-10-10 |
| CA2306815A1 (en) | 2000-03-02 |
| JP4315598B2 (ja) | 2009-08-19 |
| US6288500B1 (en) | 2001-09-11 |
| ATE223638T1 (de) | 2002-09-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| DE19533103B4 (de) | Schaltungsanordnung zum Betrieb einer Entladungslampe | |
| EP0798952B1 (de) | Schaltungsanordnung zum Betrieb von elektrischen Lampen und Betriebsverfahren für elektrische Lampen | |
| EP1025746B1 (de) | Schaltungsanordnung zum betrieb von mindestens zwei entladungslampen | |
| EP0800335A2 (de) | Schaltungsanordnung zum Betrieb elektrischer Lampen | |
| EP1033066A1 (de) | Schaltungsanordnung zum betrieb mindestens einer entladungslampe | |
| EP0753987B1 (de) | Schaltungansordnung zum Betrieb elektrischer Lampen und Betriebsverfahren für elektrische Lampen | |
| EP1397029B1 (de) | Schaltungsanordnung zum Betrieb von Entladungslampen | |
| EP1526622A2 (de) | Elektronisches Vorschaltgerät mit Schutzschaltung für Schalttransistors eines Wandlers | |
| EP0871348A1 (de) | Vorschaltgerät für unabhängigen Parallelbetrieb von Niederdruck-Gasentladungslampen | |
| EP0294604B1 (de) | Schaltungsanordnung zum Betrieb einer Entladungslampe an einer Niedervolt-Gleichspannungsquelle | |
| DE19736894A1 (de) | Integrierte Treiberschaltung | |
| DE102013203732A1 (de) | Schaltungsanordnung und Verfahren zum Betreiben mindestens eines Leuchtmittels | |
| EP1326484B1 (de) | Betriebsgerät für Gasentladungslampen | |
| EP0871347B1 (de) | Elektronisches Vorschaltgerät mit automatischem Wiederanlauf | |
| EP1608208B1 (de) | Schaltung mit Abschalteinrichtung zum Betrieb von Lichtquellen | |
| EP1189487B1 (de) | Elektronische Schaltung zur Detektion des Wendelbruchs bei Gasentladungslampen | |
| EP2298036B1 (de) | Schaltungsanordnung und verfahren zum betreiben mindestens einer beleuchtungseinrichtung | |
| EP1223792B1 (de) | EVG zum Betrieb von elektrischen Lampen | |
| EP2265097B1 (de) | Schaltungsanordnung und Verfahren zum Betreiben einer Niederdruckentladungslampe | |
| EP0558772A1 (de) | Schaltungsanordnung zum Betreiben mehrerer Leuchtstofflampen mit einem Vorschaltgerät | |
| EP1081988B1 (de) | Schaltungsanordnung zum Betrieb mindestens einer Entladungslampe | |
| DE3710513A1 (de) | Geregelte hochspannungs-versorgungsschaltung | |
| EP2140735B1 (de) | Schaltungsanordnung zum zünden und betreiben mindestens einer entladungslampe | |
| DE3519791A1 (de) | Schutzschaltung gegen ueberlast und kurzschluss | |
| EP0746185B1 (de) | Schaltungsanordnung zum Überwachen des Lampenbetriebs mindestens zweier Leuchtstofflampen |
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 |
|
| 17P | Request for examination filed |
Effective date: 20000417 |
|
| AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AT DE FI FR GB IT NL SE |
|
| 17Q | First examination report despatched |
Effective date: 20001127 |
|
| RTI1 | Title (correction) |
Free format text: CIRCUIT FOR OPERATING AT LEAST TWO DISCHARGE LAMPS |
|
| GRAG | Despatch of communication of intention to grant |
Free format text: ORIGINAL CODE: EPIDOS AGRA |
|
| RTI1 | Title (correction) |
Free format text: CIRCUIT FOR OPERATING AT LEAST TWO DISCHARGE LAMPS |
|
| 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 |
|
| GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
| AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): AT DE FI FR GB IT NL SE |
|
| REF | Corresponds to: |
Ref document number: 223638 Country of ref document: AT Date of ref document: 20020915 Kind code of ref document: T |
|
| REG | Reference to a national code |
Ref country code: GB Ref legal event code: FG4D Free format text: NOT ENGLISH |
|
| REF | Corresponds to: |
Ref document number: 59902543 Country of ref document: DE Date of ref document: 20021010 |
|
| GBT | Gb: translation of ep patent filed (gb section 77(6)(a)/1977) |
Effective date: 20021114 |
|
| 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 |
Effective date: 20030605 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: SE Payment date: 20110412 Year of fee payment: 13 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: NL Payment date: 20110616 Year of fee payment: 13 Ref country code: AT Payment date: 20110309 Year of fee payment: 13 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: IT Payment date: 20110422 Year of fee payment: 13 |
|
| REG | Reference to a national code |
Ref country code: DE Ref legal event code: R081 Ref document number: 59902543 Country of ref document: DE Owner name: OSRAM GMBH, DE Free format text: FORMER OWNER: OSRAM GESELLSCHAFT MIT BESCHRAENKTER HAFTUNG, 81543 MUENCHEN, DE Effective date: 20111130 |
|
| REG | Reference to a national code |
Ref country code: NL Ref legal event code: V1 Effective date: 20121101 |
|
| REG | Reference to a national code |
Ref country code: SE Ref legal event code: EUG |
|
| REG | Reference to a national code |
Ref country code: AT Ref legal event code: MM01 Ref document number: 223638 Country of ref document: AT Kind code of ref document: T Effective date: 20120401 |
|
| 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: 20120401 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: IT Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20120401 Ref country code: SE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20120402 |
|
| REG | Reference to a national code |
Ref country code: DE Ref legal event code: R081 Ref document number: 59902543 Country of ref document: DE Owner name: OSRAM GMBH, DE Free format text: FORMER OWNER: OSRAM AG, 81543 MUENCHEN, DE Effective date: 20130205 |
|
| 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: 20121101 |
|
| REG | Reference to a national code |
Ref country code: DE Ref legal event code: R081 Ref document number: 59902543 Country of ref document: DE Owner name: OSRAM GMBH, DE Free format text: FORMER OWNER: OSRAM GMBH, 81543 MUENCHEN, DE Effective date: 20130822 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: GB Payment date: 20140422 Year of fee payment: 16 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: FI Payment date: 20140411 Year of fee payment: 16 Ref country code: FR Payment date: 20140422 Year of fee payment: 16 |
|
| GBPC | Gb: european patent ceased through non-payment of renewal fee |
Effective date: 20150401 |
|
| 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 NON-PAYMENT OF DUE FEES Effective date: 20150401 Ref country code: FI Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20150401 |
|
| REG | Reference to a national code |
Ref country code: FR Ref legal event code: ST Effective date: 20151231 |
|
| 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: 20150430 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: DE Payment date: 20170419 Year of fee payment: 19 |
|
| REG | Reference to a national code |
Ref country code: DE Ref legal event code: R119 Ref document number: 59902543 Country of ref document: DE |
|
| 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: 20181101 |