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GB1418080A - Starter switch for a discharge-lamp - Google Patents

Starter switch for a discharge-lamp

Info

Publication number
GB1418080A
GB1418080A GB2132973A GB2132973A GB1418080A GB 1418080 A GB1418080 A GB 1418080A GB 2132973 A GB2132973 A GB 2132973A GB 2132973 A GB2132973 A GB 2132973A GB 1418080 A GB1418080 A GB 1418080A
Authority
GB
United Kingdom
Prior art keywords
transistor
capacitor
circuit
electrodes
lamp
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
Application number
GB2132973A
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.)
Philips Electronics UK Ltd
Original Assignee
Philips Electronic and Associated Industries Ltd
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
Priority claimed from FR7216521A external-priority patent/FR2183540B1/fr
Priority claimed from FR7243394A external-priority patent/FR2209269B2/fr
Priority claimed from FR7310149A external-priority patent/FR2222823A2/en
Application filed by Philips Electronic and Associated Industries Ltd filed Critical Philips Electronic and Associated Industries Ltd
Publication of GB1418080A publication Critical patent/GB1418080A/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
    • H05B41/044—Starting switches using semiconductor devices for lamp provided with pre-heating electrodes
    • H05B41/046—Starting switches using semiconductor devices for lamp provided with pre-heating electrodes using controlled semiconductor devices
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S315/00—Electric lamp and discharge devices: systems
    • Y10S315/05—Starting and operating circuit for fluorescent lamp
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S315/00—Electric lamp and discharge devices: systems
    • Y10S315/07—Starting and control circuits for gas discharge lamp using transistors

Landscapes

  • Circuit Arrangements For Discharge Lamps (AREA)

Abstract

1418080 Control systems for discharge lamps PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 4 May 1973 [9 May 1972 6 Dec 1972 21 March 1973] 21329/73 Heading H2H A system for starting and running a gas discharge lamp comprises a transistor device for superimposing high frequency, high voltage pulses on the alternating supply waveform so as to enhance the starting of the lamp. A low pressure mercury vapour discharge lamp 5 having preheatable electrodes 3, 4 is connected to an A.C. source 1, 2 by way of a ballast inductor 6. The ends of the electrodes 3, 4 remote from the supply terminals 1, 2 are connected to a full wave diode bridge 9-12 across the output terminals 13, 14 of which is connected a transistor 17. A resistor capacitor timing network 19, 20 is also connected across terminals 13, 14 such that as the capacitor 20 reaches a predetermined charge a diac 21 breaks down to render the transistor 17 conducting to cause current to flow through the electrodes 3, 4. The capacitor 20 now discharges whereupon the diac 21 recovers and the transistor 17 goes non-conductive, cutting off current flow in the electrodes 3, 4. The cycle then repeats until the electodes 3, 4 have become heated sufficiently such that the high voltage pulse produced by cutting off the transistor 17 causes ignition of the lamp. The time constant of the circuit 19, 20 is such that the conduction and non-conduction cycle of the transistor 17 is at a frequency considerably higher than the A.C. supply frequency. Simultaneously with the starting operation a second resistor capacitor circuit 23, 24 having a longer time constant than the circuit 19, 20, in charging the capacitor 24 such that when the transistor 22 is rendered conductive to short circuit capacitor 20 the starting operation is terminated. In other embodiments positive and negative temperature coeffieint resistors are used to terminate the starting operation and in which the timing circuit 23, 24 is connected directly to the A.C. source 1, 2 by way of a diode.
GB2132973A 1972-05-09 1973-05-04 Starter switch for a discharge-lamp Expired GB1418080A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR7216521A FR2183540B1 (en) 1972-05-09 1972-05-09
FR7243394A FR2209269B2 (en) 1972-12-06 1972-12-06
FR7310149A FR2222823A2 (en) 1973-03-21 1973-03-21 Method of firing a fluorescent tube - uses relaxation circuit and bilateral conducting element

Publications (1)

Publication Number Publication Date
GB1418080A true GB1418080A (en) 1975-12-17

Family

ID=27249853

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2132973A Expired GB1418080A (en) 1972-05-09 1973-05-04 Starter switch for a discharge-lamp

Country Status (13)

Country Link
US (1) US3875459A (en)
JP (1) JPS5815918B2 (en)
AR (1) AR200868A1 (en)
AT (1) AT350664B (en)
CA (1) CA1026817A (en)
CH (1) CH569399A5 (en)
DE (1) DE2323011C3 (en)
DK (1) DK134540B (en)
ES (1) ES414478A1 (en)
GB (1) GB1418080A (en)
IT (1) IT985863B (en)
NL (1) NL7306303A (en)
SE (1) SE383246B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2194400A (en) * 1986-08-04 1988-03-02 Transtar Ltd Starter & discharge lamp including it
GB2316245A (en) * 1996-08-08 1998-02-18 Matsushita Electric Ind Co Ltd Fluorescent lamp starter circuit

Families Citing this family (29)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4023066A (en) * 1973-05-21 1977-05-10 U.S. Philips Corporation Operating circuit for a gas and/or vapour discharge lamp
JPS50102184A (en) * 1974-01-21 1975-08-13
JPS5116973U (en) * 1974-07-25 1976-02-06
US4039895A (en) * 1975-02-20 1977-08-02 U.S. Philips Corporation Device for starting and feeding a discharge lamp
NL179697C (en) * 1975-02-21 1986-10-16 Philips Nv DEVICE FOR IGNITION AND POWERING A GAS AND / OR VAPOR DISCHARGE LAMP.
NL7502577A (en) * 1975-03-05 1976-09-07 Philips Nv DEVICE EQUIPPED WITH A DISCHARGE LAMP.
NL7513609A (en) * 1975-11-21 1977-05-24 Philips Nv DEVICE FOR IGNITION AND FEEDING A DISCHARGE LAMP.
DE2602604C2 (en) * 1976-01-24 1982-04-22 New Nippon Electric Co., Ltd., Osaka Circuit arrangement for igniting and operating a gas discharge lamp
JPS5374772A (en) * 1976-12-15 1978-07-03 Matsushita Electric Works Ltd Apparatus for lighting discharge lamp
FR2379226A1 (en) * 1977-01-31 1978-08-25 Radiotechnique Compelec ELECTRONIC STARTER FOR PRIMING A DISCHARGE TUBE
IT1121148B (en) * 1979-06-26 1986-03-26 Siliani Pier IGNITION CIRCUIT FOR FLUORESCENT AND SIMILAR PIPES WITH PRELIMINARY HEATING OF THE FILAMENTS
US4503359A (en) * 1979-09-12 1985-03-05 Hitachi Lighting, Ltd. Discharge lamp lighting device
JPS5774995A (en) * 1980-10-29 1982-05-11 Tokyo Shibaura Electric Co Device for firing discharge lamp
EP0078790A3 (en) * 1981-11-02 1983-09-21 Franz Wittmann Electronic ignition circuit for gas discharge lamps
JPS59198699A (en) * 1983-04-27 1984-11-10 株式会社日立製作所 High voltage discharge lamp firing device
US4642521A (en) * 1984-12-21 1987-02-10 Advance Transformer Company Compact igniter for discharge lamps
US4749909A (en) * 1984-12-21 1988-06-07 North American Philips Corporation Compact igniter for discharge lamps
US4717863A (en) * 1986-02-18 1988-01-05 Zeiler Kenneth T Frequency modulation ballast circuit
US4999547A (en) * 1986-09-25 1991-03-12 Innovative Controls, Incorporated Ballast for high pressure sodium lamps having constant line and lamp wattage
US4777410A (en) * 1987-06-22 1988-10-11 Innovative Controls, Inc. Ballast striker circuit
US4900986A (en) * 1988-09-06 1990-02-13 General Electric Company Ballast circuit for starting fluorescent lamps
DE3938677A1 (en) * 1989-11-22 1991-05-23 Trilux Lenze Gmbh & Co Kg Fluorescent lamp starter circuit - allows several lamps to be operated from single unit
CH680968A5 (en) * 1990-08-10 1992-12-15 Knobel Elektro App
DE4216716C1 (en) * 1992-05-20 1993-10-14 Siemens Ag Starter circuit for pre-heated gas discharge lamp - uses series choke coil inducing HV pulse for ignition of lamp and logic stage detecting voltage across lamp to detect ignition for controlling heating current
KR0152673B1 (en) * 1992-09-29 1998-10-01 모리시타 요이찌 A fluorescent lamp starter
FR2726426B1 (en) * 1994-10-28 1996-11-29 Sgs Thomson Microelectronics ELECTRONIC STARTER FOR FLUORESCENT LAMP
JP2002525831A (en) * 1998-09-21 2002-08-13 コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ Circuit device
DE102004025774A1 (en) * 2004-05-26 2005-12-22 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Ballast for discharge lamp with continuous operation control circuit
DE102009053276A1 (en) * 2009-11-13 2011-05-19 Orlov, Walter, Dipl.-Ing. (FH) Converter for use in e.g. ignition device for converting supply voltage into voltage pulse, has power transformer, where voltage pulse is obtained in secondary circuit of transformer by synchronized short-circuiting of secondary winding

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4426305Y1 (en) * 1966-09-22 1969-11-05
US3525901A (en) * 1968-02-13 1970-08-25 Microdot Inc Fluorescent lamp starting and operating circuit with a pulse starter
US3644780A (en) * 1968-12-27 1972-02-22 Matsushita Electric Ind Co Ltd Starting device for discharge lamp including semiconductors preheating and starting circuits
AT308905B (en) * 1970-04-09 1973-07-25 Ernst Voegeli Ballast for heated gas discharge tubes
US3720861A (en) * 1970-12-21 1973-03-13 Teletype Corp Fluorescent lamp igniting circuit

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2194400A (en) * 1986-08-04 1988-03-02 Transtar Ltd Starter & discharge lamp including it
GB2194400B (en) * 1986-08-04 1991-04-17 Transtar Ltd Starter and discharge lamp including it
GB2316245A (en) * 1996-08-08 1998-02-18 Matsushita Electric Ind Co Ltd Fluorescent lamp starter circuit
GB2316245B (en) * 1996-08-08 2000-09-06 Matsushita Electric Ind Co Ltd Fluorescent lamp lighting device

Also Published As

Publication number Publication date
DK134540B (en) 1976-11-22
CH569399A5 (en) 1975-11-14
ES414478A1 (en) 1976-02-16
CA1026817A (en) 1978-02-21
AR200868A1 (en) 1974-12-27
IT985863B (en) 1974-12-20
DK134540C (en) 1977-05-09
DE2323011B2 (en) 1980-04-10
ATA404373A (en) 1978-11-15
NL7306303A (en) 1973-11-13
SE383246B (en) 1976-03-01
AT350664B (en) 1979-06-11
US3875459A (en) 1975-04-01
JPS4949480A (en) 1974-05-14
DE2323011A1 (en) 1973-11-22
JPS5815918B2 (en) 1983-03-28
DE2323011C3 (en) 1980-12-04

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee