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GB1014997A - Improvements in or relating to devices employing two gas discharge tubes - Google Patents

Improvements in or relating to devices employing two gas discharge tubes

Info

Publication number
GB1014997A
GB1014997A GB15136/64A GB1513664A GB1014997A GB 1014997 A GB1014997 A GB 1014997A GB 15136/64 A GB15136/64 A GB 15136/64A GB 1513664 A GB1513664 A GB 1513664A GB 1014997 A GB1014997 A GB 1014997A
Authority
GB
United Kingdom
Prior art keywords
lamp
relating
gas discharge
discharge tubes
devices employing
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
GB15136/64A
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
Application filed by Philips Electronic and Associated Industries Ltd filed Critical Philips Electronic and Associated Industries Ltd
Publication of GB1014997A publication Critical patent/GB1014997A/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
    • H05B41/14—Circuit arrangements
    • H05B41/16—Circuit arrangements in which the lamp is fed by DC or by low-frequency AC, e.g. by 50 cycles/sec AC, or with network frequencies
    • H05B41/20—Circuit arrangements in which the lamp is fed by DC or by low-frequency AC, e.g. by 50 cycles/sec AC, or with network frequencies having no starting switch
    • H05B41/23—Circuit arrangements in which the lamp is fed by DC or by low-frequency AC, e.g. by 50 cycles/sec AC, or with network frequencies having no starting switch for lamps not having an auxiliary starting electrode
    • H05B41/232—Circuit arrangements in which the lamp is fed by DC or by low-frequency AC, e.g. by 50 cycles/sec AC, or with network frequencies having no starting switch for lamps not having an auxiliary starting electrode for low-pressure lamps
    • H05B41/2325—Circuit arrangements in which the lamp is fed by DC or by low-frequency AC, e.g. by 50 cycles/sec AC, or with network frequencies having no starting switch for lamps not having an auxiliary starting electrode for low-pressure lamps provided with pre-heating electrodes
    • 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
    • H05B41/16—Circuit arrangements in which the lamp is fed by DC or by low-frequency AC, e.g. by 50 cycles/sec AC, or with network frequencies
    • H05B41/20—Circuit arrangements in which the lamp is fed by DC or by low-frequency AC, e.g. by 50 cycles/sec AC, or with network frequencies having no starting switch
    • H05B41/23—Circuit arrangements in which the lamp is fed by DC or by low-frequency AC, e.g. by 50 cycles/sec AC, or with network frequencies having no starting switch for lamps not having an auxiliary starting electrode
    • H05B41/232—Circuit arrangements in which the lamp is fed by DC or by low-frequency AC, e.g. by 50 cycles/sec AC, or with network frequencies having no starting switch for lamps not having an auxiliary starting electrode for low-pressure lamps
    • H05B41/234—Circuit arrangements in which the lamp is fed by DC or by low-frequency AC, e.g. by 50 cycles/sec AC, or with network frequencies having no starting switch for lamps not having an auxiliary starting electrode for low-pressure lamps to eliminate stroboscopic effects, e.g. feeding two lamps with different phases
    • 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

Landscapes

  • Circuit Arrangements For Discharge Lamps (AREA)

Abstract

1,014,997. Discharge lamp circuits. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. April 13, 1964 [April 16, 1963], No. 15136/64. Heading H2H. In an arrangement comprising two discharge lamps 6, 7 in series with a capacitor 8 shunting one 6 to ensure the prior starting of the other 7, another capacitor 9 of smaller value is connected across the other lamp 7 to reduce the pre-striking voltages below the cold striking value of the lamp. Due to the capacitors 8, 9 discharging into the lamp and shortening the dark period, a choke 4, which may be incorporated as leakage inductance into transformer 3, 12, may be reduced in size. Typical values of the components 4, 5, 8, 9 are given in the Specification.
GB15136/64A 1963-04-16 1964-04-13 Improvements in or relating to devices employing two gas discharge tubes Expired GB1014997A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL291585 1963-04-16

Publications (1)

Publication Number Publication Date
GB1014997A true GB1014997A (en) 1965-12-31

Family

ID=19754621

Family Applications (1)

Application Number Title Priority Date Filing Date
GB15136/64A Expired GB1014997A (en) 1963-04-16 1964-04-13 Improvements in or relating to devices employing two gas discharge tubes

Country Status (6)

Country Link
US (1) US3324349A (en)
AT (1) AT246282B (en)
CH (1) CH416829A (en)
DK (1) DK109574C (en)
GB (1) GB1014997A (en)
SE (1) SE220262C1 (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3878431A (en) * 1973-03-13 1975-04-15 Bruce Ind Inc Remotely controlled discharge lamp dimming module
CH559998A5 (en) * 1974-03-28 1975-03-14 Knobel Elektro App
US4081718A (en) * 1975-05-20 1978-03-28 Nec Sylvania Corporation Discharge lamp lighting device using a backswing booster
NL8101408A (en) * 1981-03-23 1982-10-18 Philips Nv ELECTRICAL DEVICE WITH AT LEAST A LOW-PRESSURE MERCURY VAPOR DISCHARGE TUBE.
US4534035A (en) * 1983-08-09 1985-08-06 Northrop Corporation Tandem electric discharges for exciting lasers
US4568860A (en) * 1983-08-17 1986-02-04 Advance Transformer Co. Rapid start fluorescent lamp circuits with disconnect sockets
US5174478A (en) * 1986-02-07 1992-12-29 Reyman Mark E Device for the controlled measuring and dispensing of a fluid
US4899087A (en) * 1987-02-12 1990-02-06 Xerox Corporation Triggering circuit for series connected flash lamps

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2252474A (en) * 1934-09-15 1941-08-12 Gen Electric Discharge device
US2418161A (en) * 1943-12-31 1947-04-01 Gen Electric Starting and controlling apparatus for electric discharge lamps

Also Published As

Publication number Publication date
AT246282B (en) 1966-04-12
SE220262C1 (en) 1968-04-30
DK109574C (en) 1968-05-13
US3324349A (en) 1967-06-06
CH416829A (en) 1966-07-15

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