EP0391360A1 - Ballast pour une lampe de décharge à chauffage direct - Google Patents

Ballast pour une lampe de décharge à chauffage direct Download PDF

Info

Publication number
EP0391360A1
EP0391360A1 EP90106385A EP90106385A EP0391360A1 EP 0391360 A1 EP0391360 A1 EP 0391360A1 EP 90106385 A EP90106385 A EP 90106385A EP 90106385 A EP90106385 A EP 90106385A EP 0391360 A1 EP0391360 A1 EP 0391360A1
Authority
EP
European Patent Office
Prior art keywords
lamp
capacitor
heating wires
switch
ballast
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
EP90106385A
Other languages
German (de)
English (en)
Other versions
EP0391360B1 (fr
Inventor
Thomas Marinelli
Siegfried Luger
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.)
Zumtobel AG
Original Assignee
Zumtobel AG
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 Zumtobel AG filed Critical Zumtobel AG
Priority to AT90106385T priority Critical patent/ATE98837T1/de
Publication of EP0391360A1 publication Critical patent/EP0391360A1/fr
Application granted granted Critical
Publication of EP0391360B1 publication Critical patent/EP0391360B1/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
    • H05B41/14—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 ballast according to the preamble of claim 1.
  • the controllable impedance is here to be determined by an essentially ohmic impedance, e.g. be formed by a controllable ohmic resistance or by a heating conductor.
  • the control circuit part for the impedance operates in dependence on the operating state of the discharge lamp, with a control variable, e.g. signal generated by a sensing circuit and proportional to the lamp current is present.
  • the control variable can also be proportional to the lamp voltage.
  • the operating frequency of the alternating voltage generator should be selected with a view to the quantities determining the resonance so that the voltage drop across the capacitor is sufficient to ignite the lamp after sufficient heating of the electrodes.
  • the heating current itself is inversely proportional to the total impedance of the series circuit consisting of the capacitor and the controllable impedance.
  • discharge lamps filled with different gases for example argon or krypton
  • argon lamps need a higher operating frequency than krypton lamps.
  • the capacitor arranged between the heating wires and connected in series with you is connected in parallel to the electrodes of the lamp, since in the case of directly heated lamps the heating wires simultaneously form the electrodes.
  • This capacitor which is part of a series resonant circuit located in the load circuit of the AC voltage generator, has two functions. The first function is to conduct heating current through the heating wires in a preheating phase before the lamp is ignited, while the AC voltage generator is operated at such a high frequency that the lamp is still ignited is closed. The second function of the capacitor is that a resonance voltage surge which causes the ignition occurs on it during the ignition phase, the AC voltage generator being operated during this ignition phase at a frequency which corresponds approximately to the resonance frequency of the resonance circuit.
  • the operation of the lamp is largely independent of the heating current that continues to flow through the capacitor.
  • This heating current therefore causes an undesirable power loss in the heating wires.
  • It also has a disadvantage in that, despite the regulated power consumption in the case of discharge lamps with different gas fillings, because of the different operating frequencies, the result is that the power loss caused by him in the heating wires and thus the luminous efficiency of the discharge lamps is different.
  • the power loss in the heating wires caused by the capacitor is higher than in the case of krypton lamps, despite the regulated power consumption of the ballast.
  • the basic proposal is known to reduce the heating current flowing through the capacitor and the heating wires and thus the corresponding power loss by igniting the lamp by increasing the controllable impedance, with the result that that the overall efficiency is increased accordingly.
  • the problem of the different luminous efficacy in the case of discharge lamps with different gas fillings is also reduced.
  • the invention has for its object an alternative proposal for the formation of the controllable impedance and a specific configuration of the control circuit to do part of it.
  • the same current flows through the two primary windings of the transformer, and only the heating current. Since the two primary windings are in opposite directions, no current is induced in the secondary winding. After the lamp has been ignited, only the heating current flows through the primary winding arranged between the heating wires, while heating and lamp current flow in the other primary winding. The latter has the result that a current is induced in the secondary winding of the transformer, which supplies the switchover signal for the switch in such a way that it opens and thus interrupts the heating current path.
  • Claim 2 relates to an advantageous embodiment of the invention.
  • the further capacitor has the task of making it possible to increase the voltage during operation in order to maintain the discharge in the lamp.
  • the drawing shows a ballast for a discharge lamp 6.
  • the ballast contains a rectifier 1 connected to the AC network, which is followed by an inverter 2 with a controllable frequency.
  • the frequency of the inverter 2 is controlled according to a time program which will be explained below.
  • the corresponding control part which is not the subject of the invention, has been omitted for the sake of simplicity.
  • the frequency of the inverter 2 can also be changed by a power regulator 18 which receives its DC supply voltage from the rectifier 1 via a line 18.
  • the power regulator 18 is also supplied with a DC voltage actual value signal by a voltage divider 16, 17.
  • the voltage divider 16, 17 is connected to the DC voltage output of the rectifier 1.
  • the voltage drop across a resistor 15 in the current path between the rectifier 1 and the inverter 2 is supplied to the power controller 18 as an actual DC value.
  • the power controller 18 multiplies the actual DC voltage value and the DC voltage setpoint. He compares the resulting product with an internal setpoint. In the event of a control deviation, the frequency of the inverter 2 is changed. In this way it is ensured that the same power is always drawn from the AC network, regardless of the aging state of the discharge lamp 6 and also regardless of the gas (for example argon or krypton) with which it is filled.
  • the output of the inverter 2 forms a series circuit comprising a choke 3, a capacitor, a first primary winding 10 of a transformer 9, a heating wire 7 of the discharge lamp 6, a second primary winding 11 of the transformer 9, a capacitor 5, an electronic switch 14 and the second heating wire 8 of the discharge lamp 6.
  • the series circuit comprising the capacitor and the switch 14 is bridged by a further capacitor 13.
  • the current induced in the secondary winding 12 of the transformer 9 serves as a switchover signal for the switch 14, the latter being opened when a current is induced in the secondary winding 12.
  • the choke 3 serves to limit the lamp current after the lamp has been ignited and to form a series resonant circuit with the capacitors 4, 5 and 13.
  • the capacitor 4 is used for decoupling the direct current from the inverter 2 and the lamp 6. It is very much larger than the capacitor 5.
  • the capacitor 13 is very much smaller than the capacitor 5.
  • the inverter 2 In order to put the lamp 6 into operation, the inverter 2 first generates an AC voltage according to the time program mentioned above, the frequency of which is so far above the series resonance frequency essentially determined by the inductor 3 and the capacitor 5 that there is no resonance voltage surge on the capacitor 5 occurs that could cause the lamp 6 to ignite.
  • the switch 14 when the switch 14 is closed, the capacitor 5 is practically parallel to the electrodes of the directly heated discharge lamp 6 formed by the two heating wires 7, 8.
  • heating current flows through the series circuit described above in the load circuit of the inverter 2, the switch 14 being closed.
  • the frequency of the inverter 2 is lowered in the direction of the series resonance frequency mentioned above, with which As a result, a resonance voltage surge occurs on the capacitor 5 (and of course also on the capacitor 13 of smaller capacitance connected in parallel), which leads to the ignition of the lamp 6.
  • a total current formed from the heating current and lamp current flows through the primary winding 10 of the transformer 9.
  • only the lamp current flows through the primary winding 11 of the transformer 9. The result of this is that the two primary windings 10, 11 induce opposing but different currents in the secondary winding 12, as a result of which a switchover signal is generated for the switch 14. The latter is opened by this switching signal.
  • the heating current flowing through the capacitor 5 is interrupted. Only a heating current can still flow through the condenser 13, which is, however, considerably lower than the heating current previously flowing through the condenser 5, because, as mentioned, the capacitance of the condenser 13 is substantially smaller than the capacitance of the condenser 5.
  • the capacitor 13 is provided to possibly. to allow necessary resonance voltage surge during operation of the lamp to maintain the discharge.
  • the capacitor 13 is not absolutely necessary, but can also be omitted if necessary.

Landscapes

  • Circuit Arrangements For Discharge Lamps (AREA)
  • Quick-Acting Or Multi-Walled Pipe Joints (AREA)
EP90106385A 1989-04-03 1990-04-03 Ballast pour une lampe de décharge à chauffage direct Expired - Lifetime EP0391360B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT90106385T ATE98837T1 (de) 1989-04-03 1990-04-03 Vorschaltgeraet fuer eine direkt geheizte entladungslampe.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3910738A DE3910738A1 (de) 1989-04-03 1989-04-03 Vorschaltgeraet fuer eine direkt geheizte entladungslampe
DE3910738 1989-04-03

Publications (2)

Publication Number Publication Date
EP0391360A1 true EP0391360A1 (fr) 1990-10-10
EP0391360B1 EP0391360B1 (fr) 1993-12-15

Family

ID=6377733

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90106385A Expired - Lifetime EP0391360B1 (fr) 1989-04-03 1990-04-03 Ballast pour une lampe de décharge à chauffage direct

Country Status (5)

Country Link
EP (1) EP0391360B1 (fr)
AT (1) ATE98837T1 (fr)
DE (2) DE3910738A1 (fr)
FI (1) FI96160C (fr)
NO (1) NO176640C (fr)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0490330A1 (fr) * 1990-12-07 1992-06-17 Tridonic Bauelemente GmbH Circuit de commande de lampes à décharge
GB2267002A (en) * 1992-04-28 1993-11-17 Chin Tsan Wang Fluorescent lamp starting and operating circuit
WO1995010168A1 (fr) * 1993-10-01 1995-04-13 C.M. Personnel Participation B.V. Ballast electronique pour lampe a gaz a decharge
WO2000059272A1 (fr) * 1999-03-31 2000-10-05 Teknoware Oy Regulateur de puissance pour lampe fluorescente
WO2003024162A1 (fr) * 2001-09-04 2003-03-20 Neosave Gmbh Procede et dispositif destines au fonctionnement economique d'un tube fluorescent
WO2006114176A1 (fr) * 2005-04-22 2006-11-02 Tridonicatco Gmbh & Co.Kg Reglage numerique variable de la puissance d'un moyen d'eclairage
WO2006122526A1 (fr) * 2005-05-17 2006-11-23 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Circuit destine a l'utilisation d'une lampe a decharge comportant un condensateur a resonance commutable

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE69616483T2 (de) * 1995-06-29 2002-06-13 Koninklijke Philips Electronics N.V., Eindhoven Schaltungsanordnung

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2039428A (en) * 1978-12-06 1980-08-06 Moriyama Sangyo Kk Fluorescent lighting device
DE3208607A1 (de) * 1981-03-12 1982-12-16 Zumtobel AG, 6850 Dornbirn Vorschaltgeraet fuer wenigstens einen durch einen generator periodisch gezuendeten und gespeisten verbraucher
US4603281A (en) * 1983-12-12 1986-07-29 Nilssen Ole K Electronic fluorescent lamp starter
AT383000B (de) * 1983-06-23 1987-05-11 Zumtobel Ag Schaltung zum betrieb mindestens einer gasentladungslampe mit hochfrequenter spannung

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2039428A (en) * 1978-12-06 1980-08-06 Moriyama Sangyo Kk Fluorescent lighting device
DE3208607A1 (de) * 1981-03-12 1982-12-16 Zumtobel AG, 6850 Dornbirn Vorschaltgeraet fuer wenigstens einen durch einen generator periodisch gezuendeten und gespeisten verbraucher
AT383000B (de) * 1983-06-23 1987-05-11 Zumtobel Ag Schaltung zum betrieb mindestens einer gasentladungslampe mit hochfrequenter spannung
US4603281A (en) * 1983-12-12 1986-07-29 Nilssen Ole K Electronic fluorescent lamp starter

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0490330A1 (fr) * 1990-12-07 1992-06-17 Tridonic Bauelemente GmbH Circuit de commande de lampes à décharge
GB2267002A (en) * 1992-04-28 1993-11-17 Chin Tsan Wang Fluorescent lamp starting and operating circuit
WO1995010168A1 (fr) * 1993-10-01 1995-04-13 C.M. Personnel Participation B.V. Ballast electronique pour lampe a gaz a decharge
NL9301694A (nl) * 1993-10-01 1995-05-01 Cm Personnel Participation Bv Electronische voorschakelinrichting voor gasontladingsbuizen.
WO2000059272A1 (fr) * 1999-03-31 2000-10-05 Teknoware Oy Regulateur de puissance pour lampe fluorescente
US6426598B1 (en) 1999-03-31 2002-07-30 Teknoware Oy Control gear for fluorescent lamp
WO2003024162A1 (fr) * 2001-09-04 2003-03-20 Neosave Gmbh Procede et dispositif destines au fonctionnement economique d'un tube fluorescent
WO2006114176A1 (fr) * 2005-04-22 2006-11-02 Tridonicatco Gmbh & Co.Kg Reglage numerique variable de la puissance d'un moyen d'eclairage
AU2006239628B2 (en) * 2005-04-22 2011-09-15 Tridonicatco Gmbh & Co.Kg Adjustable digital illuminating means output control
WO2006122526A1 (fr) * 2005-05-17 2006-11-23 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Circuit destine a l'utilisation d'une lampe a decharge comportant un condensateur a resonance commutable

Also Published As

Publication number Publication date
ATE98837T1 (de) 1994-01-15
FI96160C (fi) 1996-05-10
FI96160B (fi) 1996-01-31
DE59003830D1 (de) 1994-01-27
NO901496D0 (no) 1990-04-02
EP0391360B1 (fr) 1993-12-15
NO901496L (no) 1990-10-04
DE3910738A1 (de) 1990-10-04
NO176640C (no) 1995-05-03
NO176640B (no) 1995-01-23
FI901687A0 (fi) 1990-04-03

Similar Documents

Publication Publication Date Title
DE3407067C2 (de) Steuerschaltung für Gasentladungslampen
EP0748146B1 (fr) Circuit pour le chauffage des électrodes de lampes à décharge
EP0338109B1 (fr) Convertisseur pour lampe à décharge
DE68918034T2 (de) Leistungssteuerschaltung für Gasentladungslampen und Verfahren für den Betrieb.
EP0669789B1 (fr) Circuit pour alimenter au moins une lampe à décharge basse-pression
DE19923945A1 (de) Elektronisches Vorschaltgerät für mindestens eine Niederdruck-Entladungslampe
EP0113451A1 (fr) Inverseur avec un circuit de charge comprenant un circuit à résonance série et une lampe à décharge
DE69616479T2 (de) Schaltungsanordnung
EP0391360B1 (fr) Ballast pour une lampe de décharge à chauffage direct
DE69618742T2 (de) Schaltungsanordnung
DE3046617C2 (fr)
DE69835328T2 (de) Steuerschaltung für eine Fluroreszenzlampe
EP0391383B1 (fr) Ballast pour lampe à décharge
DE69513646T2 (de) Schaltung zum Betreiben von Entladungslampen mit vorgeheizten Wendeln
DE69616483T2 (de) Schaltungsanordnung
EP0003528B1 (fr) Dispositif électronique de réglage d'intensité lumineuse pour lampe à décharge sans cathode chauffée
DE69709604T2 (de) Schaltungsanordnung
DE3338464C2 (de) Schaltungsanordnung zum Betrieb mindestens einer Leuchtstofflampe mit einstellbarer Helligkeit an einem selbstschwingenden Wechselrichter
EP1176851B1 (fr) Dispositif pour lampe à décharge comportant un système de commutation pour le chauffage des électrodes
DE69616451T2 (de) Umschaltanordnung
EP1276355B1 (fr) Circuit ballast pour determiner la puissance de préchauffage
EP0155729B1 (fr) Circuit pour l'exploitation à courant alternatif pour lampes à décharge à haute pression
DE3709004A1 (de) Schaltungsanordnung zur speisung einer leuchtstofflampe
DE69619622T2 (de) Schaltungsanordnung
DE3704511A1 (de) Zweidraht- wechselstrom- dimmer

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 CH DE DK ES FR GB IT LI NL SE

17P Request for examination filed

Effective date: 19901108

17Q First examination report despatched

Effective date: 19930211

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE CH DE DK ES FR GB IT LI NL SE

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

Ref country code: DK

Effective date: 19931215

Ref country code: ES

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

Effective date: 19931215

Ref country code: SE

Effective date: 19931215

REF Corresponds to:

Ref document number: 98837

Country of ref document: AT

Date of ref document: 19940115

Kind code of ref document: T

ITF It: translation for a ep patent filed
ET Fr: translation filed
REF Corresponds to:

Ref document number: 59003830

Country of ref document: DE

Date of ref document: 19940127

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 19940318

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

Ref country code: GB

Payment date: 20010327

Year of fee payment: 12

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

Ref country code: FR

Payment date: 20010417

Year of fee payment: 12

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

Ref country code: AT

Payment date: 20010423

Year of fee payment: 12

Ref country code: BE

Payment date: 20010423

Year of fee payment: 12

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

Ref country code: NL

Payment date: 20010424

Year of fee payment: 12

REG Reference to a national code

Ref country code: GB

Ref legal event code: IF02

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: 20020403

Ref country code: AT

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

Effective date: 20020403

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: 20020430

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: 20021101

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20020403

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: 20021231

NLV4 Nl: lapsed or anulled due to non-payment of the annual fee

Effective date: 20021101

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

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;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.

Effective date: 20050403

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

Ref country code: DE

Payment date: 20060629

Year of fee payment: 17

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: 20071101

REG Reference to a national code

Ref country code: CH

Ref legal event code: PFA

Owner name: ZUMTOBEL AKTIENGESELLSCHAFT

Free format text: ZUMTOBEL AKTIENGESELLSCHAFT#HOECHSTER-STRASSE 8#DORNBIRN (AT) -TRANSFER TO- ZUMTOBEL AKTIENGESELLSCHAFT#HOECHSTER-STRASSE 8#DORNBIRN (AT)

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

Ref country code: CH

Payment date: 20080424

Year of fee payment: 19

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

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

Ref country code: LI

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

Effective date: 20090430

Ref country code: CH

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

Effective date: 20090430