EP1202612A2 - Beleuchtungssystem mit schonender Vorheizung von Gasentladungslampen - Google Patents
Beleuchtungssystem mit schonender Vorheizung von Gasentladungslampen Download PDFInfo
- Publication number
- EP1202612A2 EP1202612A2 EP01123438A EP01123438A EP1202612A2 EP 1202612 A2 EP1202612 A2 EP 1202612A2 EP 01123438 A EP01123438 A EP 01123438A EP 01123438 A EP01123438 A EP 01123438A EP 1202612 A2 EP1202612 A2 EP 1202612A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- frequency
- lamp
- gas discharge
- lighting system
- 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.)
- Granted
Links
- 239000003990 capacitor Substances 0.000 claims description 17
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 230000003595 spectral effect Effects 0.000 description 2
- 230000001419 dependent effect Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000004065 semiconductor Substances 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
Definitions
- the invention relates to a lighting system consisting of an electronic operating device and at least one gas discharge lamp with filaments.
- a lighting system consisting of an electronic operating device and at least one gas discharge lamp with filaments.
- the preheating process of the gas discharge lamps is to be improved.
- An alternating voltage generator feeds in an electronic operating device for gas discharge lamps G, which works at a frequency that is significantly higher than the grid frequency, energy in a load circuit.
- the AC voltage generator G is connected to one Load circuit, consisting of a lamp choke L1, a resonance capacitor C1 and a gas discharge lamp Lp.
- the following is the gas discharge lamp called lamp for short.
- the lamp choke usually forms L1 and the resonance capacitor C1 a series resonant circuit, the the AC voltage generator G is connected.
- the lamp Lp is parallel to the Resonance capacitor C1 switched. This configuration is not just for operation the lamp Lp suitable, but also allows the lamp to ignite.
- the load circuit Before the When the lamp is ignited, the load circuit is a high-quality series resonant circuit. If this resonant circuit is excited with its resonance frequency, then it is created above the Lamp Lp a high voltage, which leads to the ignition of the lamp. To increase the Before the ignition, the life of the lamp must be the filaments W1 and W2 Lamp Lp can be preheated. In order to implement the preheating, the one shown in FIG 1 circuit shown proven. The resonance capacitor C1 is not directly connected the lamp inductor L1 and the alternating voltage generator G. Much more the connection to the lamp choke L1 is made via the filament W1 and the connection to the alternating voltage generator G via the helix W2.
- the preheating current must be strong enough to turn the filaments to the required temperature in a time that should be in the range of one second heat.
- the frequency of the voltage, that of the AC voltage generator G emits during preheating should not be selected too high.
- the voltage at the lamp Lp must not increase during preheating be high, as otherwise glow discharges that damage the filament will occur.
- the frequency of the voltage generated by the AC generator G during the Output preheating should not be chosen too low.
- the decisive factor is that of Lamp manufacturer specified non-ignition voltage. It is allowed during preheating not be exceeded. For many lamps there is no frequency for the while the preheating voltage output by the alternating voltage generator G, for which both of the above Conditions are met. All possible frequencies are either too close to the resonance frequency of the series resonant circuit, consisting of lamp choke L1 and resonance capacitor C1, and thus result in too high a voltage on the lamp Lp, or they are too far from the resonance frequency and result thus a too low preheating current.
- This task is by a lighting system with the features of the preamble of the claim 1 solved by the features of the characterizing part of claim 1.
- the resonance capacitor C1 described above is replaced by an impedance network that has the following properties: the impedance function of the impedance network has a zero at frequency f1.
- the impedance network is over the Filaments W1, W2 connected in series with lamp choke L1.
- the series connection of the Impedance network with the lamp choke L1 has an impedance function with a zero at frequency f2.
- the AC voltage generator is used for preheating G now a voltage whose essential spectral component at a frequency lies close to the frequency f1 for the zero point of the impedance function of the Impedance network.
- Near frequency f1 describes in this context a frequency range from 0.8 * f1 to 1.2 * f1.
- the AC generator G outputs a voltage for ignition whose essential spectral component is at a frequency that is close to the frequency f2 for the zero point of the impedance function of the series connection, consisting of the lamp choke L1 and the impedance network.
- a preheating circuit according to the invention can also be used for lighting systems multiple lamps can be used. All combinations of parallel and Series connection possible. With the parallel connection, several lamp circuits, which an impedance network according to the invention, a lamp choke and a Lamp included, connected in parallel. With the series connection only the Lamps can be connected in series. Then it is sufficient that the invention Impedance network with a helix connection of the first and the last
Landscapes
- Circuit Arrangements For Discharge Lamps (AREA)
Abstract
Description
- Figur 1
- ein Prinzipschaltbild zum Stand der Technik
- Figur 2
- ein Schaltbild eines bevorzugten Ausführungsbeispiels der Erfindung
Claims (4)
- Ein Beleuchtungssystem, das ein elektronisches Betriebsgerät und eine Gasentladungslampe mit Wendeln enthält, dadurch gekennzeichnet, dass von jeder Wendel ein Wendelanschluss mit einem Impedanznetzwerk verbunden ist, dessen Impedanzfunktion eine Nullstelle bei einer Frequenz aufweist, die nahe einer Frequenz ist, die das elektronische Betriebsgerät vor der Zündung der Gasentladungslampe erzeugt.
- Ein Beleuchtungssystem gemäß Anspruch 1, dadurch gekennzeichnet, dass das Impedanznetzwerk eine Serienschaltung eines Kondensators (C21) und einer Spule (L22) enthält.
- Ein Beleuchtungssystem gemäß Anspruch 1, dadurch gekennzeichnet, dass das elektronische Betriebsgerät einen Halbbrückenwechselrichter enthält.
- Ein Beleuchtungssystem, das ein elektronisches Betriebsgerät und mehrere in Serie geschaltete Gasentladungslampen mit Wendeln enthält, dadurch gekennzeichnet, dass von der ersten und der letzten Gasentladungslampe der Serienschaltung jeweils ein Wendelanschluss mit einem Impedanznetzwerk verbunden ist, dessen Impedanzfunktion eine Nullstelle bei einer Frequenz aufweist, die nahe einer Frequenz ist, die das elektronische Betriebsgerät vor der Zündung der Gasentladungslampe erzeugt.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10053803 | 2000-10-30 | ||
DE10053803A DE10053803A1 (de) | 2000-10-30 | 2000-10-30 | Beleuchtungssystem mit schonender Vorheizung von Gasentladungslampen |
Publications (3)
Publication Number | Publication Date |
---|---|
EP1202612A2 true EP1202612A2 (de) | 2002-05-02 |
EP1202612A3 EP1202612A3 (de) | 2003-11-19 |
EP1202612B1 EP1202612B1 (de) | 2005-06-29 |
Family
ID=7661581
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP01123438A Expired - Lifetime EP1202612B1 (de) | 2000-10-30 | 2001-09-28 | Beleuchtungssystem mit schonender Vorheizung von Gasentladungslampen |
Country Status (5)
Country | Link |
---|---|
US (1) | US6788001B2 (de) |
EP (1) | EP1202612B1 (de) |
AT (1) | ATE298970T1 (de) |
CA (1) | CA2360052A1 (de) |
DE (2) | DE10053803A1 (de) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2008128573A1 (de) * | 2007-04-23 | 2008-10-30 | Osram Gesellschaft mit beschränkter Haftung | Schaltanordnung zum betreiben einer niederdruck-gasentladungslampe |
WO2009089918A1 (de) * | 2008-01-18 | 2009-07-23 | Osram Gesellschaft mit beschränkter Haftung | Elektronisches vorschaltgerät und verfahren zum betreiben mindestens einer entladungslampe |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7592753B2 (en) * | 1999-06-21 | 2009-09-22 | Access Business Group International Llc | Inductively-powered gas discharge lamp circuit |
DE102004037382A1 (de) * | 2004-04-02 | 2005-10-20 | Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh | Vorschaltgerät für mindestens eine Lampe |
US7821208B2 (en) * | 2007-01-08 | 2010-10-26 | Access Business Group International Llc | Inductively-powered gas discharge lamp circuit |
US20090066486A1 (en) * | 2007-09-11 | 2009-03-12 | Omni Control Systems, Inc. | Modular signal device for a room occupancy management system and a method for using same |
US8641256B2 (en) | 2007-11-06 | 2014-02-04 | Sanken Electric Co., Ltd. | Semiconductor light emitting device, composite light emitting device with arrangement of semiconductor light emitting devices, and planar light source using composite light emitting device |
TWI405501B (zh) * | 2008-04-21 | 2013-08-11 | Delta Electronics Inc | 可節省內部連接端子使用之安定器 |
US8217583B2 (en) * | 2010-07-21 | 2012-07-10 | Grenergy Opto, Inc. | Gas-discharge lamp controller utilizing a novel reheating frequency generation mechanism |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5319284A (en) * | 1993-07-30 | 1994-06-07 | Lee Sang Woo | Electronic ballast circuit for discharge lamp |
EP0602719A1 (de) * | 1992-12-16 | 1994-06-22 | Koninklijke Philips Electronics N.V. | Hochfrequenzumrichter für eine Entladungslampe mit vorheizbaren Elektroden |
EP0848581A1 (de) * | 1996-12-12 | 1998-06-17 | Oy Helvar | Heizschaltung für die Wendeln einer Niederdruckentladungslampe |
US5920155A (en) * | 1996-10-28 | 1999-07-06 | Matsushita Electric Works, Ltd. | Electronic ballast for discharge lamps |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3619716A (en) * | 1969-07-23 | 1971-11-09 | Lutron Electronics Co | High-frequency fluorescent tube lighting circuit and ac driving circuit therefor |
US3869639A (en) * | 1973-08-24 | 1975-03-04 | Gen Electric | Emergency lighting system using dim to bright flashing operation |
US4238708A (en) * | 1975-01-09 | 1980-12-09 | New Nippon Electric Company, Ltd. | Discharge lamp operating system |
US4350935A (en) * | 1980-03-28 | 1982-09-21 | Lutron Electronics Co., Inc. | Gas discharge lamp control |
US5404082A (en) * | 1993-04-23 | 1995-04-04 | North American Philips Corporation | High frequency inverter with power-line-controlled frequency modulation |
US5424614A (en) * | 1994-03-03 | 1995-06-13 | Usi Lighting, Inc. | Modified half-bridge parallel-loaded series resonant converter topology for electronic ballast |
-
2000
- 2000-10-30 DE DE10053803A patent/DE10053803A1/de not_active Withdrawn
-
2001
- 2001-09-28 AT AT01123438T patent/ATE298970T1/de not_active IP Right Cessation
- 2001-09-28 DE DE50106617T patent/DE50106617D1/de not_active Expired - Fee Related
- 2001-09-28 EP EP01123438A patent/EP1202612B1/de not_active Expired - Lifetime
- 2001-10-25 US US09/983,715 patent/US6788001B2/en not_active Expired - Fee Related
- 2001-10-29 CA CA002360052A patent/CA2360052A1/en not_active Abandoned
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0602719A1 (de) * | 1992-12-16 | 1994-06-22 | Koninklijke Philips Electronics N.V. | Hochfrequenzumrichter für eine Entladungslampe mit vorheizbaren Elektroden |
US5319284A (en) * | 1993-07-30 | 1994-06-07 | Lee Sang Woo | Electronic ballast circuit for discharge lamp |
US5920155A (en) * | 1996-10-28 | 1999-07-06 | Matsushita Electric Works, Ltd. | Electronic ballast for discharge lamps |
EP0848581A1 (de) * | 1996-12-12 | 1998-06-17 | Oy Helvar | Heizschaltung für die Wendeln einer Niederdruckentladungslampe |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2008128573A1 (de) * | 2007-04-23 | 2008-10-30 | Osram Gesellschaft mit beschränkter Haftung | Schaltanordnung zum betreiben einer niederdruck-gasentladungslampe |
WO2009089918A1 (de) * | 2008-01-18 | 2009-07-23 | Osram Gesellschaft mit beschränkter Haftung | Elektronisches vorschaltgerät und verfahren zum betreiben mindestens einer entladungslampe |
Also Published As
Publication number | Publication date |
---|---|
EP1202612B1 (de) | 2005-06-29 |
US20020050797A1 (en) | 2002-05-02 |
DE10053803A1 (de) | 2002-05-08 |
EP1202612A3 (de) | 2003-11-19 |
CA2360052A1 (en) | 2002-04-30 |
ATE298970T1 (de) | 2005-07-15 |
US6788001B2 (en) | 2004-09-07 |
DE50106617D1 (de) | 2005-08-04 |
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