GB1411482A - Discharge lamp starting apparatus - Google Patents

Discharge lamp starting apparatus

Info

Publication number
GB1411482A
GB1411482A GB570073A GB570073A GB1411482A GB 1411482 A GB1411482 A GB 1411482A GB 570073 A GB570073 A GB 570073A GB 570073 A GB570073 A GB 570073A GB 1411482 A GB1411482 A GB 1411482A
Authority
GB
United Kingdom
Prior art keywords
thyristor
capacitor
lamp
diode
supply
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
GB570073A
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.)
Panasonic Electric Works Co Ltd
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co Ltd
Matsushita Electric Works 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
Application filed by Matsushita Electric Industrial Co Ltd, Matsushita Electric Works Ltd filed Critical Matsushita Electric Industrial Co Ltd
Publication of GB1411482A publication Critical patent/GB1411482A/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
    • 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
    • Y10S315/02—High frequency starting operation 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
    • Y10S315/05—Starting and operating circuit for fluorescent lamp

Abstract

1411482 Starting systems for discharge lamps MATSUSHITA ELECTRIC WORKS Ltd and MATSUSHITA ELECTRIC INDUSTRIAL CO Ltd 5 Feb 1973 [7 Feb 1972] 5700/73 Heading H2H A starting system for a discharge lamp 1 comprises a pulse generating circuit including a transformer 5, a first capacitor 7, a first bidirectional diode thyristor 6 and a resistor 8, a diode 9, a second capacitor 10 and a second bidirectional diode thyristor 11. During the positive half cycles of the A.C. supply, the diode 9 is reverse biased and initially the thyristor 11 is conductive thereby charging the capacitor 10 until the charging current falls to a value insufficient to hold the thyristor 11 conductive. The capacitor 10 charges the capacitor 7 thereby switching on the thyristor 6. The capacitor 7 then discharges through the primary winding n 1 of the transformer 5 to generate a high voltage pulse in the secondary winding n 2 which momentarily switches on the thyristor 11 to supply the pulse to the lamp. Starting pulses at a frequency of 5 KHz are applied to the lamp until the charge on the capacitor 10 falls below the breakover voltage of the thyristor 6. During the negative half cycles of the A.C. supply, the diode 9 is forward biased and the residual charge on the capacitor 10 is superimposed on the instantaneous supply voltage to switch on the thyristor 11 thus enabling heating current to be supplied to the lamp cathodes 2, 2<SP>1</SP> via the secondary winding n 2 . Once the lamp has been ignited, the lamp voltage is less than the breakover voltage of the thyristor 11 which is therefore switched off.
GB570073A 1972-02-07 1973-02-05 Discharge lamp starting apparatus Expired GB1411482A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1972015967U JPS518779Y2 (en) 1972-02-07 1972-02-07

Publications (1)

Publication Number Publication Date
GB1411482A true GB1411482A (en) 1975-10-29

Family

ID=11903471

Family Applications (1)

Application Number Title Priority Date Filing Date
GB570073A Expired GB1411482A (en) 1972-02-07 1973-02-05 Discharge lamp starting apparatus

Country Status (9)

Country Link
US (1) US3851209A (en)
JP (1) JPS518779Y2 (en)
CA (1) CA1006570A (en)
CH (1) CH563099A5 (en)
DE (1) DE2305926C3 (en)
FR (1) FR2171167B1 (en)
GB (1) GB1411482A (en)
IT (1) IT980410B (en)
NL (1) NL7301629A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2210520A (en) * 1987-09-28 1989-06-07 Hubbell Inc Starting and operating circuit for a super compact fluorescent lamp

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL7415839A (en) * 1974-12-05 1976-06-09 Philips Nv ELECTRICAL DEVICE FOR IGNITION AND FEEDING A GAS AND / OR VAPOR DISCHARGE LAMP.
US4081718A (en) * 1975-05-20 1978-03-28 Nec Sylvania Corporation Discharge lamp lighting device using a backswing booster
DE2602604C2 (en) * 1976-01-24 1982-04-22 New Nippon Electric Co., Ltd., Osaka Circuit arrangement for igniting and operating a gas discharge lamp
NO801819L (en) * 1979-07-24 1981-01-26 Gen Electric Co Ltd ELECTRIC CHARGING LAMP CIRCUIT.
BE879019A (en) * 1979-09-26 1980-03-26 Acec STARTER FOR LAMPS SUCH AS FLUORESCENT LAMPS
US4329622A (en) * 1980-05-19 1982-05-11 Xerox Corporation Low pressure gas discharge lamp with increased end illumination
DE3022930A1 (en) * 1980-06-19 1982-01-07 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH, 8000 München IGNITION AND OPERATING CIRCUIT FOR A LOW-PRESSURE DISCHARGE LAMP
US4339690A (en) * 1980-08-01 1982-07-13 Gte Laboratories Incorporated Energy saving fluorescent lighting system
US4572988A (en) * 1983-08-22 1986-02-25 Industrial Design Associates, (Ida) High frequency ballast circuit
GB2173055A (en) * 1985-03-29 1986-10-01 Philips Electronic Associated Circuit arrangement for starting discharge lamps
US5063328A (en) * 1986-12-17 1991-11-05 Walton John F Energy saving circuit for discharge tubes
US5955847A (en) * 1994-06-10 1999-09-21 Beacon Light Products, Inc. Method for dimming a fluorescent lamp
US5757145A (en) * 1994-06-10 1998-05-26 Beacon Light Products, Inc. Dimming control system and method for a fluorescent lamp
US5504398A (en) * 1994-06-10 1996-04-02 Beacon Light Products, Inc. Dimming controller for a fluorescent lamp
US5652481A (en) * 1994-06-10 1997-07-29 Beacon Light Products, Inc. Automatic state tranition controller for a fluorescent lamp
US5537010A (en) * 1994-06-10 1996-07-16 Beacon Light Products, Inc. Voltage-comparator, solid-state, current-switch starter for fluorescent lamp
US5479075A (en) * 1995-02-03 1995-12-26 Chen; Shih-Ta Fluorescent lamp starter circuit
US5736817A (en) * 1995-09-19 1998-04-07 Beacon Light Products, Inc. Preheating and starting circuit and method for a fluorescent lamp
US5861721A (en) * 1996-11-25 1999-01-19 Beacon Light Products, Inc. Smooth switching module
US5861720A (en) * 1996-11-25 1999-01-19 Beacon Light Products, Inc. Smooth switching power control circuit and method
CN102098858B (en) * 2011-01-18 2013-04-24 武汉和隆电子有限公司 Starter of gas discharge lamp

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3644780A (en) * 1968-12-27 1972-02-22 Matsushita Electric Ind Co Ltd Starting device for discharge lamp including semiconductors preheating and starting circuits
DE2009023A1 (en) * 1969-02-27 1970-09-10 New Nippon Electric Company Ltd., Osaka (Japan) Circuit arrangement for igniting a discharge lamp

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2210520A (en) * 1987-09-28 1989-06-07 Hubbell Inc Starting and operating circuit for a super compact fluorescent lamp

Also Published As

Publication number Publication date
DE2305926B2 (en) 1976-01-22
CA1006570A (en) 1977-03-08
NL7301629A (en) 1973-08-09
DE2305926A1 (en) 1973-08-16
JPS518779Y2 (en) 1976-03-09
FR2171167A1 (en) 1973-09-21
DE2305926C3 (en) 1976-10-14
JPS4893680U (en) 1973-11-09
CH563099A5 (en) 1975-06-13
IT980410B (en) 1974-09-30
FR2171167B1 (en) 1977-04-22
US3851209A (en) 1974-11-26

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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