EP1202612B1 - Beleuchtungssystem mit schonender Vorheizung von Gasentladungslampen - Google Patents
Beleuchtungssystem mit schonender Vorheizung von Gasentladungslampen Download PDFInfo
- Publication number
- EP1202612B1 EP1202612B1 EP01123438A EP01123438A EP1202612B1 EP 1202612 B1 EP1202612 B1 EP 1202612B1 EP 01123438 A EP01123438 A EP 01123438A EP 01123438 A EP01123438 A EP 01123438A EP 1202612 B1 EP1202612 B1 EP 1202612B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- lamp
- frequency
- gas discharge
- lighting system
- impedance network
- 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 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
- 238000010438 heat treatment Methods 0.000 description 3
- 230000003595 spectral effect Effects 0.000 description 2
- 230000001419 dependent effect Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000000034 method Methods 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 control gear and at least one gas discharge lamp with helices. Especially the preheating of the gas discharge lamps should be improved.
- FIG. 1 In an electronic control gear for gas discharge lamps fed an AC generator G, which works at a frequency that is much higher than the grid frequency, energy in a load circuit.
- the AC generator G is connected to a Load circuit consisting of a lamp inductor L1, a resonance capacitor C1 and a gas discharge lamp Lp connected.
- the following is the gas discharge lamp called lamp for short.
- the lamp inductor L1 and the resonance capacitor C1 a series resonant circuit, the the AC generator G is connected.
- the lamp Lp is parallel to the Resonant capacitor C1 connected. This configuration is not just for operation the lamp Lp suitable, but also allows the ignition of the lamp.
- the load circuit Before the Ignition of the lamp, the load circuit is a high-quality series resonant circuit. If this resonant circuit is excited with its resonant frequency, then arises over the Lamp Lp high voltage, which leads to the ignition of the lamp. To increase the The life of the lamp must be before the ignition of the coils W1 and W2 Lamp Lp preheated. To realize the preheating has in FIG 1 circuit proven proven.
- the resonance capacitor C1 is not directly with the lamp inductor L1 and the AC generator G. Much more the connection to the lamp choke L1 is made via the helix W1 and the connection to the AC generator G via the coil W2.
- EP 848 581 A1 proposes a heating circuit for spirals, with which the heating current can be adjusted during operation.
- Fig. 8 and in Column 4 / lines 2-24 of this document discloses an impedance network (12 ', 11) which between a helical connection of a first coil (6) and a helical connection a second coil (7) is connected.
- the in EP 848 581 A1 (Naakka) described impedance network is designed so that when operating a lamp only low current flows through the coils to save energy.
- EP 848 581 A1 has no indication of how to design the impedance network is, so when preheating enough heating current at low lamp voltage flows.
- This task is provided by a lighting system having the features of the preamble of the claim 1 solved by the features of the characterizing part of claim 1.
- For lighting systems with multiple lamps applies according to claim 4.
- Especially advantageous embodiments can be found in the dependent claims.
- the above-described resonance capacitor C 1 is replaced by An impedance network that has the following characteristics:
- the impedance function of the impedance network has a zero at the frequency f1.
- the impedance network over the Spirals W1, W2 connected in series to the lamp inductor L1.
- the series connection of the Impedance network with the lamp inductor L1 has an impedance function with a zero at frequency f1.
- For preheating gives the AC voltage generator G now a voltage whose essential spectral component at a frequency which is close to the frequency f1 for the zero point of the impedance function of the Impedance network is located.
- Near the frequency f1 describes in this context a frequency range of 0.8 * f1 to 1.2 * f1. This is the tension at the Lamp low (below the non-ignition voltage) and at the same time is a sufficiently high Current through the coils W1, W2 feasible, the preheating time under a Second allowed.
- To ignite the AC voltage generator G is a voltage whose essential spectral component is at a frequency close to the frequency f2 for the zero point of the impedance function of the series circuit, consisting of the lamp inductor L1 and the impedance network is located.
- a preheating circuit according to the invention can also be used for lighting systems several lamps are used. Here are all combinations of parallel and Series connection possible.
- parallel connection several lamp circuits, an impedance network according to the invention, a lamp choke and a Lamp included, connected in parallel.
- series circuit only the Lamps are connected in series. Then it is sufficient the inventive Impedance network, each with a helical connection of the first and the last Lamp to connect the series connection of lamps.
Landscapes
- Circuit Arrangements For Discharge Lamps (AREA)
Description
- Figur 1
- ein Prinzipschaltbild zum Stand der Technik
- Figur 2
- ein Schaltbild eines bevorzugten Ausführungsbeispiels der Erfindung
Claims (4)
- Beleuchtungssystem, das ein elektronisches Betriebsgerät und eine Gasentladungslampe (Lp) mit zwei Wendeln (W1, W2) enthält, wobei ein Wendelanschluss einer Wendel (W1) über ein Impedanznetzwerk (L22, C21) mit einem Wendelanschluss der anderen Wendel (W2) verbunden ist,
dadurch gekennzeichnet, dass das Impedanznetzwerk (L22, C21) eine Impedanzfunktion mit einer Nullstelle bei einer Frequenz (f1) aufweist, die nahe einer Frequenz ist, die das elektronische Betriebsgerät zum Vorheizen der Wendeln (W1, W2) vor der Zündung der Gasentladungslampe (Lp) erzeugt. - Beleuchtungssystem gemäß Anspruch 1, dadurch gekennzeichnet, dass das Impedanznetzwerk (L22, C21) eine Serienschaltung eines Kondensators (C21) und einer Spule (L22) enthält.
- Beleuchtungssystem gemäß Anspruch 1, dadurch gekennzeichnet, dass das elektronische Betriebsgerät einen Halbbrückenwechselrichter enthält.
- Beleuchtungssystem, das ein elektronisches Betriebsgerät und mehrere in Serie geschaltete Gasentladungslampen (Lp) mit Wendeln (W1, W2) enthält, wobei ein Wendelanschluss der ersten und ein Wendelanschluss der letzten Gasentladungslampe (Lp) der Serienschaltung über ein Impedanznetzwerk (L22, C21) miteinander verbunden sind,
dadurch gekennzeichnet, dass,
dass das Impedanznetzwerk (L22, C21) eine Impedanzfunktion mit einer Nullstelle bei einer Frequenz (f1) aufweist, die nahe einer Frequenz ist, die das elektronische Betriebsgerät zum Vorheizen der Wendeln (W1, W2) vor der Zündung der Gasentladungslampe (Lp) erzeugt.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10053803A DE10053803A1 (de) | 2000-10-30 | 2000-10-30 | Beleuchtungssystem mit schonender Vorheizung von Gasentladungslampen |
DE10053803 | 2000-10-30 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP1202612A2 EP1202612A2 (de) | 2002-05-02 |
EP1202612A3 EP1202612A3 (de) | 2003-11-19 |
EP1202612B1 true 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) |
Families Citing this family (9)
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 |
WO2008128573A1 (de) * | 2007-04-23 | 2008-10-30 | Osram Gesellschaft mit beschränkter Haftung | Schaltanordnung zum betreiben einer niederdruck-gasentladungslampe |
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 |
WO2009089918A1 (de) * | 2008-01-18 | 2009-07-23 | Osram Gesellschaft mit beschränkter Haftung | Elektronisches vorschaltgerät und verfahren zum betreiben mindestens einer entladungslampe |
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 |
Family Cites Families (10)
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 |
EP0602719B1 (de) * | 1992-12-16 | 1998-10-21 | Koninklijke Philips Electronics N.V. | Hochfrequenzumrichter für eine Entladungslampe mit vorheizbaren Elektroden |
US5404082A (en) * | 1993-04-23 | 1995-04-04 | North American Philips Corporation | High frequency inverter with power-line-controlled frequency modulation |
KR960006611B1 (ko) * | 1993-07-30 | 1996-05-20 | 주식회사용광 | 전자식 방전등 안정기 |
US5424614A (en) * | 1994-03-03 | 1995-06-13 | Usi Lighting, Inc. | Modified half-bridge parallel-loaded series resonant converter topology for electronic ballast |
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 |
-
2000
- 2000-10-30 DE DE10053803A patent/DE10053803A1/de not_active Withdrawn
-
2001
- 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
- 2001-09-28 AT AT01123438T patent/ATE298970T1/de not_active IP Right Cessation
- 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
Also Published As
Publication number | Publication date |
---|---|
DE50106617D1 (de) | 2005-08-04 |
EP1202612A2 (de) | 2002-05-02 |
CA2360052A1 (en) | 2002-04-30 |
EP1202612A3 (de) | 2003-11-19 |
US6788001B2 (en) | 2004-09-07 |
DE10053803A1 (de) | 2002-05-08 |
ATE298970T1 (de) | 2005-07-15 |
US20020050797A1 (en) | 2002-05-02 |
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