EP1056315B1 - Schaltung zum Betreiben von Wechselstrom-Hochdruckgasentladungslampen für ein Kraftfahrzeug - Google Patents
Schaltung zum Betreiben von Wechselstrom-Hochdruckgasentladungslampen für ein Kraftfahrzeug Download PDFInfo
- Publication number
- EP1056315B1 EP1056315B1 EP00110480A EP00110480A EP1056315B1 EP 1056315 B1 EP1056315 B1 EP 1056315B1 EP 00110480 A EP00110480 A EP 00110480A EP 00110480 A EP00110480 A EP 00110480A EP 1056315 B1 EP1056315 B1 EP 1056315B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- high pressure
- lamp
- filter
- circuit
- pressure discharge
- 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
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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
- H05B41/288—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 without preheating electrodes, e.g. for high-intensity discharge lamps, high-pressure mercury or sodium lamps or low-pressure sodium lamps
- H05B41/292—Arrangements for protecting lamps or circuits against abnormal operating conditions
Definitions
- the invention relates to a circuit for operating an AC high-pressure gas discharge lamp for a motor vehicle, with a control unit, a Superimposed ignitor, a symmetrical lamp filter and one High-pressure gas discharge lamp, the symmetrical lamp filter between the High pressure gas discharge lamp and the superposition ignition is arranged with a filter capacity parallel to the high pressure gas discharge lamp and a choke each in the feed lines to this parallel connection.
- AC high pressure gas discharge lamps as used in motor vehicles, generate a broad EMI spectrum with high intensity in the frequency range of a few megahertz to the gigahertz range. These disorders are in the essentially generated during current commutation. It goes out with every commutation the lamp is short and is re-ignited with increasing voltage, which creates a high-energy glitch every time.
- the invention has for its object to develop a circuit that on the one hand, the interference pulses of the lamp are causally reduced and, on the other hand, the filters the remaining interference pulses sufficiently, the ignition voltage during the Ignition should be reduced as little as possible.
- a filter is used to suppress the lamp, the filter inductances especially extreme during current commutation and during ignition are non-linear.
- the chokes are advantageously designed so that their Inductors during current commutation in the zero crossing of the current very much large and shortly before, and as small as possible during ignition.
- This Inductors are coils with a closed, soft magnetic core (without Air gap), which is a pronounced hysteresis loop with high remanence and has a high coercive force.
- Ring cores made of high-resistance are best Ferrite material (e.g. NiZn ferrites, MnZn ferrites, MgZn ferrites) are suitable.
- Toroidal chokes are used as interference suppression components, especially for thyristor and triac circuits known.
- Such chokes generally have iron or low-resistance ferrite cores to achieve the highest possible inductance values or high To reach saturation levels. This can be an interference suppression up to Frequencies of the FM radio range can be achieved, a uniform Interference suppression of frequencies far beyond this, as required at the beginning but not reachable with it. Therefore, the generally used ones turned out to be Toroidal chokes to solve the task of the invention as not suitable.
- US-A-5 731 666 discloses an integrated magnetic filter, i.e. a Filter that suppresses "common mode” and "differential mode” interference at the same time achieved a single magnetic component that instead of an air gap a leg with low magnetic permeability.
- the coils are like that on the magnetic structure that two non-linear, each over the Magnetic paths extending low-permeable leg arise.
- EP-A-740 492 shows a superimposed ignition device, the secondary winding of which exhibits non-linear behavior.
- each closed design is one for the choke cores Coil core can be used; for cost reasons (manufacturing and winding costs) however, ring cores are particularly advantageous.
- the single figure shows a control device for a high-pressure gas discharge lamp, and an ignitor with an integrated lamp filter.
- the control unit controls and supplies both the high pressure gas discharge lamp (GDL) as well as the primary ignition circuit of the igniter.
- the ignitor is as one Superimposed ignitor executed; the secondary winding of the Ignition transformer (K1) connected in one of the lamp leads.
- the ignitor also has a symmetrical lamp filter, the symmetrical Lamp filter between the high pressure gas discharge lamp (GDL) and the Superposition ignition is arranged and a filter capacity (C1) parallel to High pressure gas discharge lamp (GDL) and a choke (L1, L2) in each Feed lines to this parallel connection.
- the two chokes consist of coils, each on a closed, soft magnetic, high-resistance core with a pronounced hysteresis curve, preferably on Toroidal cores made of high-resistance ferrite are wound.
- the chokes (L1, L2) are designed so that the maximum sum of the two Inductors the magnitude of the inductance of the secondary winding of the Ignition transformer (K1) reached (this is the case when the current through the Inductors just went through zero and the hysteresis loop the Passes through the coercive field strength) and the minimum sum is significantly smaller than that Inductance of the secondary winding of the ignition transformer (K1) is (this is the Fall in the time before the start of commutation and the zero crossing of the Current).
- the cores of the chokes (L1, L2) are saturated and the inductances almost disappear.
- the chokes' cores (L1, L2) have no air gap (not even a distributed one) Air gap as is usual with powder cores).
- Rod core chokes used in such Filter circuits commonly used have an extreme air gap and are therefore very linear.
- the nonlinear filter not only has a particularly good filter property with regard to lamp failures, it even causally reduces their occurrence. This could be shown by first using a high pressure gas discharge lamp without, then with, and then again without the invention Filter arrangement was operated. The from the high pressure gas discharge lamp outgoing interference was largely reduced by the filter. Surprisingly, the high pressure gas discharge lamp also showed up Removal of the filter from the circuit initially only very little interference, the interference pulses but after some time again, in the for a circuit without Filter usual intensity occurred.
- the filter circuit according to the invention advantageously also enables even a dimmed operation of a high pressure gas discharge lamp. Both circuits previously used could AC high pressure gas discharge lamps only for a short time and only a little dimmed (below their nominal power) because they operate in this mode extremely old.
- the filter circuit according to the invention reduces, even when the lamp is dimmed Re-ignition peaks in current commutation to such a low level that the Electrodes are hardly damaged.
Landscapes
- Circuit Arrangements For Discharge Lamps (AREA)
Description
- C1
- Filterkapazität
- GDL
- (Wechselstrom-) Hochdruckgasentladungslampe
- K1
- Zündtransformator
- L1, L2
- Drosseln
Claims (4)
- Schaltung zum Betreiben einer Wechselstrom-Hochdruckgasentladungslampe (GDL) für ein Kraftfahrzeug, mit einem Steuergerät, einem Überlagerungszündgerät, einem symmetrischen Lampenfilter und einer Hochdruckgasentladungslampe (GDL), wobei das symmetrische Lampenfilter zwischen der Hochdruckgasentladungslampe (GDL) und der Überlagerungszündung angeordnet ist, mit einer Filterkapazität (C1) parallel zur Hochdruckgasentladungslampe (GDL) und je einer Drossel (L1, L2) in den Zuführungsleitungen zu dieser Parallelschaltung,
dadurch gekennzeichnet, daß die beiden Drosseln (L1, L2) als Spulen mit jeweils einem eigenen geschlossenen, weichmagnetischen, hochohmigen Ferritkern ausgebildet sind. - Schaltung nach Anspruch 1, dadurch gekennzeichnet, daß die Ferritkerne als Ringkerne ausgeführt sind.
- Schaltung nach Anspruch 1, dadurch gekennzeichnet, daß die Spulen einlagig gewickelt sind.
- Schaltung nach Anspruch 2, dadurch gekennzeichnet, daß die Spulen über einen Winkel von maximal 270° bewickelt sind.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19924095 | 1999-05-26 | ||
DE19924095A DE19924095A1 (de) | 1999-05-26 | 1999-05-26 | Schaltung zum Betreiben einer Wechselstrom-Hochdruckgasentladungslampe für ein Kraftfahrzeug |
Publications (3)
Publication Number | Publication Date |
---|---|
EP1056315A2 EP1056315A2 (de) | 2000-11-29 |
EP1056315A3 EP1056315A3 (de) | 2001-09-12 |
EP1056315B1 true EP1056315B1 (de) | 2003-07-30 |
Family
ID=7909226
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP00110480A Expired - Lifetime EP1056315B1 (de) | 1999-05-26 | 2000-05-17 | Schaltung zum Betreiben von Wechselstrom-Hochdruckgasentladungslampen für ein Kraftfahrzeug |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP1056315B1 (de) |
AT (1) | ATE246439T1 (de) |
DE (2) | DE19924095A1 (de) |
ES (1) | ES2203375T3 (de) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7456583B2 (en) | 2006-09-05 | 2008-11-25 | General Electric Company | Electrical circuit with dual stage resonant circuit for igniting a gas discharge lamp |
US7460379B2 (en) | 2006-09-05 | 2008-12-02 | General Electric Company | Electrical circuit with voltage multiplier for facilitating ignition of a gas discharge lamp |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10116254A1 (de) * | 2001-03-31 | 2002-10-02 | Hella Kg Hueck & Co | Scheinwerferanordnung für eine Hochdruckgasentladungslampe in einem Kraftfahrzeug |
DE102004042462A1 (de) * | 2004-08-31 | 2006-03-02 | Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH | Verfahren zum Betreiben einer Hochdruckentladungslampe, Betriebsvorrichtung für eine Hochdruckentladungslampe und Hochdruckentladungslampe mit einer Betriebsvorrichtung |
DE102005060797A1 (de) * | 2005-12-16 | 2007-06-28 | Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH | Vorrichtung zur Verbesserung der elektromagnetischen Verträglichkeit einer Hochdruckentladungslampe |
WO2009049674A1 (de) * | 2007-10-17 | 2009-04-23 | Osram Gesellschaft mit beschränkter Haftung | Elektronisches vorschaltgerät und verfahren zum betreiben einer entladungslampe |
US8049432B2 (en) | 2008-09-05 | 2011-11-01 | Lutron Electronics Co., Inc. | Measurement circuit for an electronic ballast |
DE102008046163A1 (de) | 2008-09-06 | 2010-03-11 | Hella Kgaa Hueck & Co. | Zündgerät mit Filter für eine Hochdruckgasentladungslampe |
US8624493B2 (en) * | 2008-11-28 | 2014-01-07 | Osram Gesellschaft Mit Beschrankter Haftung | Integrated gas discharge lamp with an ignition electronics integrated into the base for generating asymmetrical ignition pulses |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5051665A (en) * | 1990-06-21 | 1991-09-24 | Gte Products Corporation | Fast warm-up ballast for arc discharge lamp |
DE4310307B4 (de) * | 1993-03-30 | 2004-10-14 | Robert Bosch Gmbh | Scheinwerfer für Fahrzeuge |
EP0702885B1 (de) * | 1994-04-06 | 1999-12-29 | Koninklijke Philips Electronics N.V. | Schaltungsanordnung |
DE19515511A1 (de) * | 1995-04-27 | 1996-10-31 | Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh | Verfahren und Schaltungsanordnung zum Starten und Betreiben einer Entladungslampe |
JPH09129379A (ja) * | 1995-11-06 | 1997-05-16 | Koito Mfg Co Ltd | 放電灯点灯装置 |
US5731666A (en) * | 1996-03-08 | 1998-03-24 | Magnetek Inc. | Integrated-magnetic filter having a lossy shunt |
IT1293443B1 (it) * | 1997-07-11 | 1999-03-01 | Magneti Marelli Spa | Dispositivo di comando per una lampada a scarica di gas, particolarmente per autoveicoli. |
-
1999
- 1999-05-26 DE DE19924095A patent/DE19924095A1/de not_active Withdrawn
-
2000
- 2000-05-17 ES ES00110480T patent/ES2203375T3/es not_active Expired - Lifetime
- 2000-05-17 DE DE50003068T patent/DE50003068D1/de not_active Expired - Lifetime
- 2000-05-17 EP EP00110480A patent/EP1056315B1/de not_active Expired - Lifetime
- 2000-05-17 AT AT00110480T patent/ATE246439T1/de not_active IP Right Cessation
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7456583B2 (en) | 2006-09-05 | 2008-11-25 | General Electric Company | Electrical circuit with dual stage resonant circuit for igniting a gas discharge lamp |
US7460379B2 (en) | 2006-09-05 | 2008-12-02 | General Electric Company | Electrical circuit with voltage multiplier for facilitating ignition of a gas discharge lamp |
Also Published As
Publication number | Publication date |
---|---|
DE50003068D1 (de) | 2003-09-04 |
ES2203375T3 (es) | 2004-04-16 |
DE19924095A1 (de) | 2000-11-30 |
ATE246439T1 (de) | 2003-08-15 |
EP1056315A3 (de) | 2001-09-12 |
EP1056315A2 (de) | 2000-11-29 |
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