GB1264397A - - Google Patents

Info

Publication number
GB1264397A
GB1264397A GB1264397DA GB1264397A GB 1264397 A GB1264397 A GB 1264397A GB 1264397D A GB1264397D A GB 1264397DA GB 1264397 A GB1264397 A GB 1264397A
Authority
GB
United Kingdom
Prior art keywords
starting
thyristor
capacitor
lamp
ignite
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
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 filed Critical
Publication of GB1264397A publication Critical patent/GB1264397A/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

Landscapes

  • Circuit Arrangements For Discharge Lamps (AREA)
  • Ignition Installations For Internal Combustion Engines (AREA)

Abstract

1,264,397. Starting systems for gas discharge apparatus. AUCO N.V. 14 Nov., 1969 [20 Nov., 1968], No. 55921/69. Heading H2H. A system for igniting a gas discharge tube is provided with means whereby after a predetermined time should the tube not have ignited, the starting operation is terminated thereby protecting the discharge tube. In a known circuit for starting a discharge lamp 1 shown in Fig. 1 the starting device 5 is replaced by a starting circuit as illustrated in Fig. 2. Upon switching on, the capacitor 12, being of smaller capacitance than that of capacitor 14, charges rapidly to provide gating pulses for a thyristor 10 which fires in the appropriate half cycles to cause heating of the electrodes 2, 3 to ignite the lamp 1. Should the lamp fail to ignite the capacitor 14 gradually charges in a stepwise manner until the diode 17 becomes non-conductive so that no gating pulses are provided for the thyristor 10 and the starting process terminates. During the starting process and whilst the capacitor 14 is charging the firing instant of the thyristor 10 occurs later and later in the halfcyles of conduction. In other embodiments the thyristor is replaced by a triac, a full-wave rectifier bridge is connected between the resistor 9 and the thyristor and lastly a full-wave bridge may be associated with the capacitors 12, 14.
GB1264397D 1968-11-20 1969-11-14 Expired GB1264397A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL6816538.A NL158054B (en) 1968-11-20 1968-11-20 AUXILIARY DEVICE PROVIDED WITH TWO CONNECTING DEVICES FOR IGNITIONING A GAS DISCHARGE TUBE.

Publications (1)

Publication Number Publication Date
GB1264397A true GB1264397A (en) 1972-02-23

Family

ID=19805205

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1264397D Expired GB1264397A (en) 1968-11-20 1969-11-14

Country Status (6)

Country Link
US (1) US3643127A (en)
BE (1) BE741789A (en)
DE (1) DE1957672B2 (en)
FR (1) FR2041024A1 (en)
GB (1) GB1264397A (en)
NL (1) NL158054B (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0078524A2 (en) * 1981-10-30 1983-05-11 Mitsubishi Denki Kabushiki Kaisha Discharge lampstarter arrangements
GB2120871A (en) * 1982-05-06 1983-12-07 Tdk Corp Starting discharge lamps
US4629944A (en) * 1983-03-03 1986-12-16 Texas Instruments Incorporated Starter circuit for a fluorescent tube lamp

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3978368A (en) * 1973-02-21 1976-08-31 Hitachi, Ltd. Discharge lamp control circuit
FR2222822B1 (en) * 1973-03-22 1976-09-10 Smolyansky Roman
US3942070A (en) * 1974-09-10 1976-03-02 Hitachi, Ltd. Electric discharge lamp lighting device
JPS51136381A (en) * 1975-05-12 1976-11-25 Koizumi Sangyo Kk Fluorescent lamp lighting circuit
US4117377A (en) * 1976-01-14 1978-09-26 Jimerson Bruce D Circuits for starting and operating ionized gas lamps
AT345930B (en) * 1976-04-30 1978-10-10 Zumtobel Kg CIRCUIT FOR FLUORESCENT LAMPS
NL179779C (en) * 1977-01-26 1986-11-03 Philips Nv DEVICE FOR IGNITION AND POWERING A GAS AND / OR VAPOR DISCHARGE LAMP.
GB1602456A (en) * 1977-04-18 1981-11-11 Thorn Emi Ltd Starting of discharge lamps
NZ188933A (en) * 1977-12-01 1982-11-23 Gen Electric Co Ltd Discharge lamp supply circuit
IL55875A (en) * 1978-11-06 1981-07-31 Univ Ben Gurion Eletronic starters for discharge lamps
DE2849064C2 (en) * 1978-11-11 1985-09-12 Deutsche Nemectron GmbH, 7500 Karlsruhe Ignition circuit for a gas discharge lamp
FR2441990A1 (en) * 1978-11-17 1980-06-13 Lampes Sa Fluorescent tube firing circuit - has triac fired to draw DC heating current through tube electrodes and ceases operation once tube fires or fails
DE3009725A1 (en) * 1980-03-13 1981-09-17 Vossloh-Werke Gmbh, 5980 Werdohl Fluorescent lamp electronic starting and protection circuit - has bistable, astable and monostable sawtooth waveform generators to operate thyristor firing transistor
DE3311215A1 (en) * 1983-03-28 1984-10-04 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH, 8000 München IGNITION DEVICE FOR A LOW-PRESSURE DISCHARGE LAMP
US4808886A (en) * 1985-08-26 1989-02-28 Lathom Michael S Switched capacitive ballasts for discharge lamps
US5010279A (en) * 1985-08-26 1991-04-23 Lathom Michael S Switched capacitive ballasts for discharge lamps
US4673844A (en) * 1985-09-30 1987-06-16 Texas Instruments Incorporated Starter circuit for a fluorescent tube lamp
US6411155B2 (en) * 1994-12-30 2002-06-25 Sgs-Thomson Microelectronics S.A. Power integrated circuit
US6518814B1 (en) * 1999-12-28 2003-02-11 Koninklijke Philips Electronics N.V. High-voltage capacitor voltage divider circuit having a high-voltage silicon-on-insulation (SOI) capacitor
US6786830B2 (en) * 2002-06-28 2004-09-07 Koala Corporation Modular water play structure

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3508112A (en) * 1967-06-29 1970-04-21 Sylvania Electric Prod Circuit for applying ionizing pulses and boosted alternating current to an arc discharge lamp
US3474291A (en) * 1968-07-03 1969-10-21 Underwriters Safety Device Co Capacitor discharge circuit with positive control means

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0078524A2 (en) * 1981-10-30 1983-05-11 Mitsubishi Denki Kabushiki Kaisha Discharge lampstarter arrangements
EP0078524A3 (en) * 1981-10-30 1983-08-31 Mitsubishi Denki Kabushiki Kaisha Discharge lampstarter arrangements
GB2120871A (en) * 1982-05-06 1983-12-07 Tdk Corp Starting discharge lamps
US4629944A (en) * 1983-03-03 1986-12-16 Texas Instruments Incorporated Starter circuit for a fluorescent tube lamp

Also Published As

Publication number Publication date
NL6816538A (en) 1970-05-22
DE1957672A1 (en) 1970-05-27
DE1957672B2 (en) 1972-03-23
BE741789A (en) 1970-05-04
NL158054B (en) 1978-09-15
FR2041024A1 (en) 1971-01-29
US3643127A (en) 1972-02-15

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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