GB2018062A - Ignition circuits for high pressure discharge lamps - Google Patents

Ignition circuits for high pressure discharge lamps

Info

Publication number
GB2018062A
GB2018062A GB7909913A GB7909913A GB2018062A GB 2018062 A GB2018062 A GB 2018062A GB 7909913 A GB7909913 A GB 7909913A GB 7909913 A GB7909913 A GB 7909913A GB 2018062 A GB2018062 A GB 2018062A
Authority
GB
United Kingdom
Prior art keywords
voltage
ignition
pressure discharge
high pressure
discharge lamps
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
GB7909913A
Other versions
GB2018062B (en
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.)
Osram GmbH
Original Assignee
Patent Treuhand Gesellschaft fuer Elektrische Gluehlampen mbH
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 Patent Treuhand Gesellschaft fuer Elektrische Gluehlampen mbH filed Critical Patent Treuhand Gesellschaft fuer Elektrische Gluehlampen mbH
Publication of GB2018062A publication Critical patent/GB2018062A/en
Application granted granted Critical
Publication of GB2018062B publication Critical patent/GB2018062B/en
Expired 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
    • H05B41/02—Details
    • H05B41/04—Starting switches
    • H05B41/042—Starting switches using semiconductor devices

Landscapes

  • Circuit Arrangements For Discharge Lamps (AREA)

Abstract

An ignition circuit for a high- pressure discharge lamp (2) supplied from a high frequency source (1) comprises a spark gap (13) connected in parallel with a capacitor (12) and in series with the primary winding (14) of a pulse transformer (15). The spark gap generates only one spark to produce one ignition pulse during several cycles of the high-frequency voltage. An isolating transformer (5) increases the voltage supplied to symmetrical or asymmetrical voltage doubler circuit (8, 9, 10) which charges the capacitor (12), the discharge of which in the resonant circuit formed with the winding (14) supplies the high voltage ignition pulses to the lamp. <IMAGE>
GB7909913A 1978-03-22 1979-03-21 Ignition circuits for high pressure discharge lamps Expired GB2018062B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2812623A DE2812623C2 (en) 1978-03-22 1978-03-22 Ignition device for a high pressure discharge lamp

Publications (2)

Publication Number Publication Date
GB2018062A true GB2018062A (en) 1979-10-10
GB2018062B GB2018062B (en) 1982-07-28

Family

ID=6035219

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7909913A Expired GB2018062B (en) 1978-03-22 1979-03-21 Ignition circuits for high pressure discharge lamps

Country Status (5)

Country Link
AT (1) AT383244B (en)
DE (1) DE2812623C2 (en)
FR (1) FR2420893A1 (en)
GB (1) GB2018062B (en)
IT (1) IT1118447B (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4749914A (en) * 1985-02-07 1988-06-07 El-Co Villamos Keszulekek Es Szerelesi Anyagok Gyara Circuit system for igniting and operating a high-pressure discharge lamp, particularly a sodium vapor lamp
GB2265506A (en) * 1992-03-27 1993-09-29 Gen Electric Low dc input voltage ballast circuit for a metal halide discharge light source
NL9300560A (en) * 1992-04-03 1993-11-01 Hubbell Inc ELECTRONIC BALLAST.
GB2305032A (en) * 1995-08-29 1997-03-26 Hubbell Inc Inhibiting operation of a starting circuit for a high pressure discharge lamp

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61110996A (en) * 1984-11-05 1986-05-29 株式会社日立製作所 High voltage discharge lamp lighting apparatus
DE3625499A1 (en) * 1986-03-19 1987-10-15 Wolfgang Dipl Ing Renner Starter for high-pressure discharge lamps which are supplied independently of the mains
US4904907A (en) * 1988-02-26 1990-02-27 General Electric Company Ballast circuit for metal halide lamp
DE3843029A1 (en) * 1988-12-21 1990-06-28 Hella Kg Hueck & Co DEVICE FOR IGNITING AND OPERATING ELECTRIC GAS DISCHARGE LAMPS
JPH03138894A (en) * 1989-10-23 1991-06-13 Nissan Motor Co Ltd Lighting device for discharge lamp
DE4447779B4 (en) * 1993-11-30 2004-09-16 Koito Mfg. Co., Ltd. Electrical circuit for vehicle HV gas discharge lamp - generates lamp start pulse accurately in phase with high voltage AC voltage supply to lamp
DE4442658B4 (en) * 1993-11-30 2004-09-16 Koito Mfg. Co., Ltd. Circuit arrangement for starting and operating a high-pressure discharge lamp for vehicles
DE4423275A1 (en) * 1994-07-05 1996-01-11 Bosch Gmbh Robert Ignition device for gas discharge lamps, in particular for motor vehicle lights
DE19823641A1 (en) * 1998-05-27 2000-02-10 Bosch Gmbh Robert Igniter for a gas discharge lamp, in particular high-pressure gas discharge lamp for motor vehicle headlights

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB707318A (en) * 1950-11-13 1954-04-14 British Thomson Houston Co Ltd Improvements in and relating to starting and operating circuits for high pressure gaseous discharge devices
DE853318C (en) * 1951-04-29 1952-10-23 Patra Patent Treuhand Device for lighting electrical discharge lamps, in particular with ignition voltages of more than 1000 volts
DE947993C (en) * 1953-06-09 1956-08-23 Siemens Ag Ignitor for discharge lamps
GB824906A (en) * 1957-10-15 1959-12-09 Engelhard Ind Inc Improvements in or relating to an operating circuit for electrical discharge lamps

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4749914A (en) * 1985-02-07 1988-06-07 El-Co Villamos Keszulekek Es Szerelesi Anyagok Gyara Circuit system for igniting and operating a high-pressure discharge lamp, particularly a sodium vapor lamp
GB2172451B (en) * 1985-02-07 1989-06-14 El Co Villamos Keszulekek Es S Circuit system for igniting and lighting a high-pressure discharge lamp particulary a sodium vapour lamp
GB2265506A (en) * 1992-03-27 1993-09-29 Gen Electric Low dc input voltage ballast circuit for a metal halide discharge light source
GB2265506B (en) * 1992-03-27 1996-05-08 Gen Electric Low voltage ballast circuit for a high brightness discharge light source
NL9300560A (en) * 1992-04-03 1993-11-01 Hubbell Inc ELECTRONIC BALLAST.
US6166492A (en) * 1992-04-03 2000-12-26 Hubbell Incorporated Low loss, electronic ballast
GB2305032A (en) * 1995-08-29 1997-03-26 Hubbell Inc Inhibiting operation of a starting circuit for a high pressure discharge lamp
GB2305032B (en) * 1995-08-29 2000-03-22 Hubbell Inc Lamp starting circuit

Also Published As

Publication number Publication date
ATA155679A (en) 1986-10-15
IT1118447B (en) 1986-03-03
GB2018062B (en) 1982-07-28
DE2812623C2 (en) 1987-04-23
FR2420893A1 (en) 1979-10-19
IT7967586A0 (en) 1979-03-21
AT383244B (en) 1987-06-10
DE2812623A1 (en) 1979-09-27
FR2420893B1 (en) 1983-03-11

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee