EP0595333A1 - Circuit d'amorage pour une lampe à décharge hautepression à vapeur métallique - Google Patents

Circuit d'amorage pour une lampe à décharge hautepression à vapeur métallique Download PDF

Info

Publication number
EP0595333A1
EP0595333A1 EP93117526A EP93117526A EP0595333A1 EP 0595333 A1 EP0595333 A1 EP 0595333A1 EP 93117526 A EP93117526 A EP 93117526A EP 93117526 A EP93117526 A EP 93117526A EP 0595333 A1 EP0595333 A1 EP 0595333A1
Authority
EP
European Patent Office
Prior art keywords
capacitor
ignition
switch element
series
voltage
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
Application number
EP93117526A
Other languages
German (de)
English (en)
Other versions
EP0595333B1 (fr
Inventor
Rudolf Mühling
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Tridonic Bauelemente GmbH
Original Assignee
Tridonic Bauelemente GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Tridonic Bauelemente GmbH filed Critical Tridonic Bauelemente GmbH
Publication of EP0595333A1 publication Critical patent/EP0595333A1/fr
Application granted granted Critical
Publication of EP0595333B1 publication Critical patent/EP0595333B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

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
    • H05B41/02—Details
    • H05B41/04—Starting switches
    • H05B41/042—Starting switches using semiconductor devices

Definitions

  • the invention relates to an ignition circuit for a high-pressure metal vapor discharge lamp according to the preamble of claim 1.
  • Such an ignition circuit is known from DE-OS 31 08 547 and DE-OS 37 36 542.
  • the so-called burner is usually arranged in an evacuated glass bulb.
  • the burner itself consists of a glass tube which has the electrodes at its ends and in which metal vapor, preferably metal halide, forms in the operating state.
  • the piston is provided with electrical connections, preferably a screw socket.
  • the electrical connections of the piston are connected to the connections of the electrodes of the burner via connecting wires.
  • the connecting wires can hold the burner in the piston in a centered position; but it is also possible to provide additional holding wires for the positioning of the burner.
  • High-pressure metal vapor discharge lamps of the type described above and the ignition circuits required for this purpose are often also used on ships or vehicles, such as, for example, crane runways or the like, where they are exposed to strong vibrations.
  • the vibrations can be the cause of the breakage of the lead wires to the burner in the evacuated piston.
  • Such a break has the consequence that the current flowing through the lamp in operation is abruptly interrupted due to the vacuum prevailing in the bulb, without an arc extending the switch-off time being able to form at the point of interruption.
  • the brief switch-off of the relatively high lamp current which can be, for example, 6 A, has the effect that the energy stored in the choke leads to a high voltage surge at the series circuit comprising the surge capacitor and the ignition capacitor and to flow out in the form of a current caused by the series circuit of these two capacitors tries.
  • This surge can destroy the capacitors, especially if they occur repeatedly. The latter is possible because the wire ends come into contact again at the breaking point as a result of the vibrations and are interrupted again, etc.
  • the invention has for its object to take a measure in an ignition circuit of the type described in the preamble, by means of which the destruction of the capacitors of this circuit can be avoided when using lamps with an evacuated glass bulb.
  • the fuse blows immediately, with the result that further operation of the lamp is impossible before the fuse is changed.
  • the lamp can also be replaced. In this way, the capacitors of the ignition circuit are permanently protected.
  • a gas spark gap is suitable for this, for example.
  • the breakdown voltage for a gas spark gap typically used here is approximately 600 to 1,000 V.
  • the gas spark gap In the non-ignited state, the gas spark gap has a very high resistance. If it ignited against it, the resistance is very low. With ignition, the voltage on the gas spark gap is reduced to a burning voltage that is significantly lower than the breakdown voltage.
  • Gas spark gaps with an operating voltage of approximately 20 to 60 V are typically used here. If the voltage applied to the gas spark gap in the ignited state falls below the operating voltage, the gas spark gap falls back into the non-conductive state.
  • the first switch element can be a SIDAC.
  • This component differs from the second switch element in that the maximum voltage and the minimum voltage differ from one another only to a small extent.
  • the ignition circuit shown in the drawing is provided with two connections 1, 2 for the AC network and is used to ignite a high-pressure metal discharge lamp 5.
  • a connection of the lamp 5 is connected to a mains connection 2.
  • the other connection of the lamp 5 is connected to a superimposed ignition voltage device 4.
  • a series inductance 3, which is formed by a choke, is connected upstream of the superimposed ignition voltage device 4.
  • the ballast inductor 3 is on the one hand at the AC mains connection 1 and on the other hand is connected to a connection of a surge capacitor 6.
  • the other terminal of the surge capacitor 6 is connected to a terminal of an auxiliary ignition capacitor 7.
  • the other connection of the auxiliary ignition capacitor 7 is connected to the AC mains connection 2 via a fuse 16.
  • a resistor 8 is connected in parallel to the auxiliary ignition capacitor 7, which ensures compliance with the desired operating voltage range and the given limits for the phase position of the ignition pulses.
  • the connection point between the surge capacitor 6 and the auxiliary ignition capacitor 7 is connected via a high-frequency coil 14 to a connection of a first switch element 9.
  • a first switch element 9 In the present case, this is a SIDAC.
  • This switch element is normally non-conductive. It becomes conductive when the voltage applied to it exceeds a certain threshold voltage value. This applies in both polarity directions.
  • the first switch element 9 can also be a four-layer diode, for example.
  • the other connection of the switch element 9 is connected to a connection of a pulse transformer 10 connected as an autotransformer.
  • the other terminal of the pulse transformer is connected to the lamp 5.
  • the pulse transformer 10 is provided with a tap 13, which is connected to the connection point between the series inductance 3 formed by the choke and the surge capacitor 6.
  • the primary winding lies between the one connection and the tap 13.
  • the secondary winding lies between the tap 13 and the winding end connected to the lamp.
  • a transformer with separate primary and secondary windings can also be used.
  • a gas spark gap 15 is connected in parallel to the series circuit formed by the surge capacitor 6 and the auxiliary ignition capacitor 7.
  • the lamp 5 consists of the burner 17 and an evacuated glass bulb 18.
  • the electrodes are connected to corresponding connections on the piston 18 by connecting wires 19 which hold the burner 17 in the piston 18 in a centered position. But it is also possible that separate holding wires are provided for the burner 17.
  • the circuit works as follows: If the AC network is connected to the connections 1 and 2 and, for example, a positive half-wave begins, the surge capacitor 6 and the auxiliary ignition capacitor 7 are charged via the series inductance 3 formed by the choke during the rising phase of the half-wave. If the voltage across the surge capacitor 6 exceeds the voltage threshold value specified by the first switch element 9, the switch element 9 switches through, that is to say it is suddenly switched from the non-conductive state to the conductive state. As a result, the surge capacitor 6 discharges through the switch element 9. This has the consequence that a voltage surge occurs at the tap 13 of the pulse capacitor 12, which imposes a superimposition on the mains voltage at the upper connection of the lamp 5 and can be several kV. This voltage surge leads to ionization of the lamp 5.
  • the series resonance circuit formed from the series inductance 3 and the auxiliary ignition capacitor 7 is triggered, with the result that a damped oscillation is produced.
  • This lies on the primary winding 11 of the pulse transformer 10 and is stepped up, so that after the voltage surge on the lamp 5, a decaying high-frequency oscillation of high voltage is present.
  • the resonance frequency of the series resonance circuit formed from the series inductor 3 and the auxiliary ignition capacitor 7 is selected such that at least the first half-wave of the decaying oscillation following the voltage surge strikes the still ionized lamp 5 if the lamp 5 has not already ignited the voltage surge. With the decay of the high-frequency oscillation below the voltage threshold value of the first switch element 9, this becomes non-conductive again. Then this process is repeated until the lamp ignites.
  • the gas spark gap 15 was therefore connected in parallel with the series connection of these capacitors.
  • the gas spark gap 15 is a discrete component that is normally non-conductive. However, if a maximum breakdown voltage of, for example, 800 V is exceeded on the gas spark gap, it suddenly becomes conductive, with the result that the energy stored in the inductor 3 does not flow as a current through the capacitors 6 and 7, but via the gas spark gap 15.
  • the fuse 16 is dimensioned such that it blows when the gas spark gap 15 breaks. This ensures that continued operation of a defective lamp 5 is not possible without replacing the blown fuse 16. When the fuse 16 is replaced, the defective lamp 5 can also be replaced.

Landscapes

  • Circuit Arrangements For Discharge Lamps (AREA)
  • Discharge Lamps And Accessories Thereof (AREA)
EP93117526A 1992-10-28 1993-10-28 Circuit d'amorage pour une lampe à décharge hautepression à vapeur métallique Expired - Lifetime EP0595333B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4236403 1992-10-28
DE4236403A DE4236403A1 (de) 1992-10-28 1992-10-28 Zündschaltung für eine Hochdruckmetalldampfentladungslampe

Publications (2)

Publication Number Publication Date
EP0595333A1 true EP0595333A1 (fr) 1994-05-04
EP0595333B1 EP0595333B1 (fr) 1997-03-12

Family

ID=6471564

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93117526A Expired - Lifetime EP0595333B1 (fr) 1992-10-28 1993-10-28 Circuit d'amorage pour une lampe à décharge hautepression à vapeur métallique

Country Status (3)

Country Link
EP (1) EP0595333B1 (fr)
AT (1) ATE150248T1 (fr)
DE (2) DE4236403A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997021328A1 (fr) * 1995-12-01 1997-06-12 Robert Bosch Gmbh Circuit d'entree pour dispositif d'amorçage d'une lampe a decharge a haute pression
EP1033906A2 (fr) * 1999-03-04 2000-09-06 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Lampe à décharge à haute pression munie d'un dispositif d'amorçage dans le culot de la lampe

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4406534C2 (de) * 1993-06-11 1998-10-29 Tridonic Bauelemente Zündgerät für Kaltstartentladungslampen

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0030785A1 (fr) * 1979-09-20 1981-06-24 Davis Engineering Limited Circuits d'adaptation pour lampes à décharge
GB2088156A (en) * 1980-11-18 1982-06-03 Nuarc Co Power supply for hid lamp
US4339695A (en) * 1980-06-05 1982-07-13 Unicorn Electrical Products High pressure sodium lamp ballast circuit
EP0314178A1 (fr) * 1987-10-28 1989-05-03 Zumtobel Aktiengesellschaft Circuit d'amorçage pour lampes à haute pression et à vapeur métallique

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0030785A1 (fr) * 1979-09-20 1981-06-24 Davis Engineering Limited Circuits d'adaptation pour lampes à décharge
US4339695A (en) * 1980-06-05 1982-07-13 Unicorn Electrical Products High pressure sodium lamp ballast circuit
GB2088156A (en) * 1980-11-18 1982-06-03 Nuarc Co Power supply for hid lamp
EP0314178A1 (fr) * 1987-10-28 1989-05-03 Zumtobel Aktiengesellschaft Circuit d'amorçage pour lampes à haute pression et à vapeur métallique
DE3736542A1 (de) * 1987-10-28 1989-05-11 Zumtobel Ag Zuendschaltung fuer eine hochdruckmetalldampfentladungslampe

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997021328A1 (fr) * 1995-12-01 1997-06-12 Robert Bosch Gmbh Circuit d'entree pour dispositif d'amorçage d'une lampe a decharge a haute pression
EP1033906A2 (fr) * 1999-03-04 2000-09-06 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Lampe à décharge à haute pression munie d'un dispositif d'amorçage dans le culot de la lampe
EP1033906A3 (fr) * 1999-03-04 2001-09-19 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Lampe à décharge à haute pression munie d'un dispositif d'amorçage dans le culot de la lampe

Also Published As

Publication number Publication date
EP0595333B1 (fr) 1997-03-12
ATE150248T1 (de) 1997-03-15
DE59305732D1 (de) 1997-04-17
DE4236403A1 (de) 1994-07-07

Similar Documents

Publication Publication Date Title
DE3108548C2 (de) Zündschaltung für eine Hochdruckmetalldampfentladungslampe
EP0868115B1 (fr) Circuit d'amorçage pour lampe HID
WO1999056506A1 (fr) Circuit pour actionner au moins une lampe a decharge
US4339695A (en) High pressure sodium lamp ballast circuit
EP1667200B1 (fr) Lampe de décharge à haute pression et système d'illumination utilisant une lampe de décharge à haute pression
EP1054579A2 (fr) Circuit, système électrique associé ainsi que lampe à décharge avec un tel circuit et son procédé d'alimentation
EP0595333B1 (fr) Circuit d'amorage pour une lampe à décharge hautepression à vapeur métallique
DE2517818A1 (de) Zuend- und betriebseinrichtung fuer eine hochdruckentladungslampe
EP0914754A1 (fr) Dispositif d'allumage pour une lampe a decharge et procede pour allumer une lampe a decharge
EP1033906B1 (fr) Lampe à décharge à haute pression munie d'un dispositif d'amorçage dans le culot de la lampe
EP1058488B1 (fr) Circuit d'allumage pour lampe
EP0111373B1 (fr) Dispositif de circuit pour mise en marche et fonctionnement de lampes de décharge à gaz et à haute pression
EP0178735B1 (fr) Dispositif de circuit pour enflammer et mettre en marche des lampes à décharge au gaz
EP1385358B1 (fr) Circuit d'amorçage pour une lampe HID
EP0314178B1 (fr) Circuit d'amorçage pour lampes à haute pression et à vapeur métallique
DE3536385C2 (fr)
EP0212740A2 (fr) Disposition de circuit pour le démarrage et le fonctionnement de lampes à décharge gazeuse
DE2744049C2 (de) Zünd- und Betriebsgerät für Hochdruck-Entladungslampen
DE2938529B1 (de) Zuend- und Betriebsgeraet fuer eine Hochdrucklampe
DE2604914C3 (de) Schaltungsanordnung zum Zünden und zum Betrieb einer Entladungslampe
DE629684C (de) Einrichtung zur Zuendung einer elektrischen Gas- oder Dampfentladungsroehre
DE60117764T2 (de) Zündvorrichtung mit störkapazitätsunterdrücker
DE1665064B1 (de) Ueberspannungsschutzeinrichtung fuer einen wechselstrom schalter
DE1665064C (de) Uberspannungsschutzeinnchtung fur einen Wechselstromschalter
DE1764111C3 (de) Zündgerät für eine mit Vorschaltgerät betriebene Metalldampfentladungslampe

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 BE DE DK ES FR GB IT NL SE

17P Request for examination filed

Effective date: 19940623

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

17Q First examination report despatched

Effective date: 19960410

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 BE DE DK ES FR GB IT NL SE

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 FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 19970312

Ref country code: GB

Effective date: 19970312

Ref country code: FR

Effective date: 19970312

Ref country code: ES

Free format text: THE PATENT HAS BEEN ANNULLED BY A DECISION OF A NATIONAL AUTHORITY

Effective date: 19970312

Ref country code: DK

Effective date: 19970312

REF Corresponds to:

Ref document number: 150248

Country of ref document: AT

Date of ref document: 19970315

Kind code of ref document: T

REF Corresponds to:

Ref document number: 59305732

Country of ref document: DE

Date of ref document: 19970417

ITF It: translation for a ep patent filed

Owner name: JACOBACCI & PERANI S.P.A.

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Effective date: 19970612

NLV1 Nl: lapsed or annulled due to failure to fulfill the requirements of art. 29p and 29m of the patents act
EN Fr: translation not filed
GBV Gb: ep patent (uk) treated as always having been void in accordance with gb section 77(7)/1977 [no translation filed]

Effective date: 19970312

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: 19971028

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19971031

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
BERE Be: lapsed

Owner name: TRIDONIC BAUELEMENTE G.M.B.H.

Effective date: 19971031

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: IT

Payment date: 20061031

Year of fee payment: 14

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: 20071028

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20120102

Year of fee payment: 19

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: 20130501

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 59305732

Country of ref document: DE

Effective date: 20130501