EP0092654A3 - Ballast apparatus - Google Patents

Ballast apparatus Download PDF

Info

Publication number
EP0092654A3
EP0092654A3 EP83101515A EP83101515A EP0092654A3 EP 0092654 A3 EP0092654 A3 EP 0092654A3 EP 83101515 A EP83101515 A EP 83101515A EP 83101515 A EP83101515 A EP 83101515A EP 0092654 A3 EP0092654 A3 EP 0092654A3
Authority
EP
European Patent Office
Prior art keywords
reached
inverter
discharge lamp
load circuit
sufficient preheating
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.)
Ceased
Application number
EP83101515A
Other languages
German (de)
French (fr)
Other versions
EP0092654A2 (en
Inventor
Max Ing. Grad. Kerscher
Anh-Dung Dipl.-Ing. Nguyen
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.)
Siemens AG
Original Assignee
Siemens 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 Siemens AG filed Critical Siemens AG
Priority to EP83101515A priority Critical patent/EP0092654A3/en
Publication of EP0092654A2 publication Critical patent/EP0092654A2/en
Publication of EP0092654A3 publication Critical patent/EP0092654A3/en
Ceased legal-status Critical Current

Links

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

Landscapes

  • Circuit Arrangements For Discharge Lamps (AREA)

Abstract

Zur Erhöhung der Lebensdauer einer Entladungslampe mit heizbaren Elektroden ist vor einer Zündung der Lampe für eine ausreichende Vorheizung zu sorgen. Bei einem Wechselrichter, dessen Lastkreis die Entladungslampe (L) und einen Serienresonanzkreis (C23, L7) in Reihenschaltung enthält, wird eine ausreichende Vorheizung erfindungsge­ mäß durch eine vorübergehende Erhöhung der Betriebsfre­ quenz des Wechselrichters erreicht. Wenn die Schalter des Wechselrichters über einen Transformator (T8) gesteuert werden, dessen Primärwicklung in dem Lastkreis liegt, wird dies insbesondere durch Kurzschließen einer kleinen Zusatz­ wicklung (L85) erreicht. To increase the life of a discharge lamp with heated electrodes is before ignition of the lamp to ensure sufficient preheating. At a Inverter whose load circuit is the discharge lamp (L) and a series resonance circuit (C23, L7) connected in series contains sufficient preheating fiction, ge according to a temporary increase in operating fre frequency of the inverter reached. If the switch of the Controlled by a transformer (T8) whose primary winding is in the load circuit this in particular by short-circuiting a small addition winding (L85) reached.

EP83101515A 1981-04-14 1981-04-14 Ballast apparatus Ceased EP0092654A3 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP83101515A EP0092654A3 (en) 1981-04-14 1981-04-14 Ballast apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP83101515A EP0092654A3 (en) 1981-04-14 1981-04-14 Ballast apparatus

Related Parent Applications (2)

Application Number Title Priority Date Filing Date
EP81900979.6 Division 1981-04-14
EP81900979A Division EP0050131B1 (en) 1980-04-15 1981-04-14 Ballast for a discharge lamp

Publications (2)

Publication Number Publication Date
EP0092654A2 EP0092654A2 (en) 1983-11-02
EP0092654A3 true EP0092654A3 (en) 1984-04-18

Family

ID=8190296

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83101515A Ceased EP0092654A3 (en) 1981-04-14 1981-04-14 Ballast apparatus

Country Status (1)

Country Link
EP (1) EP0092654A3 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3301108A1 (en) * 1983-01-14 1984-07-19 Siemens AG, 1000 Berlin und 8000 München METHOD FOR OPERATING A GAS DISCHARGE LAMP
DE3437554A1 (en) * 1984-10-12 1986-04-24 Siemens AG, 1000 Berlin und 8000 München Invertor for supplying discharge lamps
NL185746B (en) * 1984-11-09 1990-02-01 Maars Holding Bv DEVICE FOR DEPENDING ON AMBIENT LIGHT FROM ONE LOW-FREQUENT AC VOLTAGE SOURCE OF ONE OR MORE FLUORESCENT LAMPS.
DE19516052A1 (en) * 1995-05-04 1996-11-14 Eta Plus Electronic Gmbh U Co Method for operating a high-pressure gas discharge lamp and circuit arrangement for carrying out the method
WO1998051130A1 (en) * 1997-05-06 1998-11-12 Nlgi Electronics Ltd. Simple effective electronic ballast
US7728528B2 (en) 2004-11-29 2010-06-01 Century Concept Ltd Electronic ballast with preheating and dimming control

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2398427A1 (en) * 1977-07-19 1979-02-16 Legrand Sa Supply circuit for fluorescent security light - has transformer and variable frequency DC=AC converter with adjustable saturation characteristics
GB2014000A (en) * 1978-02-03 1979-08-15 Philips Nv Arrangement for starting and feeding a metal vapour discharge lamp provided with a preheatable elctrode
FR2461429A1 (en) * 1979-07-11 1981-01-30 Sabir Discharge lamp frequency converter - uses parallel capacitor to achieve resonance with regulating inductance
WO1981003102A1 (en) * 1980-04-15 1981-10-29 Siemens Ag Ballast for connecting a discharge lamp
DE3031322A1 (en) * 1980-08-20 1982-04-01 Licentia Gmbh DC fed circuit for fluorescent lamps - has transistor inverter and oscillation circuit with reduced power during start by switching relay for lamp electrodes preheating
EP0056642A1 (en) * 1981-01-20 1982-07-28 Gerhard Prof. Dipl.-Phys. Wollank Method and circuit for heating, starting and driving or controlling the light current of low pressure gas discharge lamps
FR2520575A1 (en) * 1982-01-26 1983-07-29 Thomson Brandt Gmbh SUPPLY CIRCUIT FOR A LUMINESCENT TUBE
EP0093469A2 (en) * 1982-04-20 1983-11-09 Koninklijke Philips Electronics N.V. DC/AC converter for the ignition and the supply with alternating current of a gas and/or vapour discharge lamp

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2398427A1 (en) * 1977-07-19 1979-02-16 Legrand Sa Supply circuit for fluorescent security light - has transformer and variable frequency DC=AC converter with adjustable saturation characteristics
GB2014000A (en) * 1978-02-03 1979-08-15 Philips Nv Arrangement for starting and feeding a metal vapour discharge lamp provided with a preheatable elctrode
FR2461429A1 (en) * 1979-07-11 1981-01-30 Sabir Discharge lamp frequency converter - uses parallel capacitor to achieve resonance with regulating inductance
WO1981003102A1 (en) * 1980-04-15 1981-10-29 Siemens Ag Ballast for connecting a discharge lamp
DE3031322A1 (en) * 1980-08-20 1982-04-01 Licentia Gmbh DC fed circuit for fluorescent lamps - has transistor inverter and oscillation circuit with reduced power during start by switching relay for lamp electrodes preheating
EP0056642A1 (en) * 1981-01-20 1982-07-28 Gerhard Prof. Dipl.-Phys. Wollank Method and circuit for heating, starting and driving or controlling the light current of low pressure gas discharge lamps
FR2520575A1 (en) * 1982-01-26 1983-07-29 Thomson Brandt Gmbh SUPPLY CIRCUIT FOR A LUMINESCENT TUBE
EP0093469A2 (en) * 1982-04-20 1983-11-09 Koninklijke Philips Electronics N.V. DC/AC converter for the ignition and the supply with alternating current of a gas and/or vapour discharge lamp

Also Published As

Publication number Publication date
EP0092654A2 (en) 1983-11-02

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Inventor name: NGUYEN, ANH-DUNG, DIPL.-ING.

Inventor name: KERSCHER, MAX, ING. GRAD.