GB1011991A - Improvements in or relating to circuit arrangements including a discharge tube - Google Patents

Improvements in or relating to circuit arrangements including a discharge tube

Info

Publication number
GB1011991A
GB1011991A GB13643/64A GB1364364A GB1011991A GB 1011991 A GB1011991 A GB 1011991A GB 13643/64 A GB13643/64 A GB 13643/64A GB 1364364 A GB1364364 A GB 1364364A GB 1011991 A GB1011991 A GB 1011991A
Authority
GB
United Kingdom
Prior art keywords
tube
relating
discharge tube
choke
circuit arrangements
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
GB13643/64A
Inventor
Palmers Hilbert
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
Koninklijke Philips NV
Original Assignee
Philips Electronic and Associated Industries Ltd
Philips Gloeilampenfabrieken NV
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, Philips Gloeilampenfabrieken NV filed Critical Philips Electronic and Associated Industries Ltd
Publication of GB1011991A publication Critical patent/GB1011991A/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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
    • H01P5/00—Coupling devices of the waveguide type
    • H01P5/04—Coupling devices of the waveguide type with variable factor of coupling
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03C—MODULATION
    • H03C7/00—Modulating electromagnetic waves
    • H03C7/02—Modulating electromagnetic waves in transmission lines, waveguides, cavity resonators or radiation fields of antennas

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Circuit Arrangements For Discharge Lamps (AREA)

Abstract

1,011,991. Discharge lamp circuits. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. April 2, 1964 [April 5, 1963], No. 13643/64. Heading H2H. In a discharge tube 5 circuit having a series choke 3 and capacitor 4, the volt ampere rating of the choke may be reduced to 0.9 to 1.15 of that of the tube by connecting an additional capacitor 8 having an impedance of 30 to 50 times the tube impedance either across the tube, or in series with the free ends of the electrodes 6, 7. The inductance of the choke 3 may be incorporated in a leakage transformer. The capacitor 8 has a value of 0.9 m.f.d. for a 40-watt tube.
GB13643/64A 1963-04-05 1964-04-01 Improvements in or relating to circuit arrangements including a discharge tube Expired GB1011991A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL291218A NL121718C (en) 1963-04-05 1963-04-05

Publications (1)

Publication Number Publication Date
GB1011991A true GB1011991A (en) 1965-12-01

Family

ID=19754598

Family Applications (1)

Application Number Title Priority Date Filing Date
GB13643/64A Expired GB1011991A (en) 1963-04-05 1964-04-01 Improvements in or relating to circuit arrangements including a discharge tube

Country Status (6)

Country Link
AT (1) AT239920B (en)
CH (1) CH406426A (en)
DK (1) DK107046C (en)
ES (1) ES298259A1 (en)
GB (1) GB1011991A (en)
NL (1) NL121718C (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4631450A (en) * 1983-12-28 1986-12-23 North American Philips Lighting Corporation Ballast adaptor for improving operation of fluorescent lamps
US5606222A (en) * 1994-12-29 1997-02-25 Philips Electronics North America Corporation Lighting system with a device for reducing system wattage

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4631450A (en) * 1983-12-28 1986-12-23 North American Philips Lighting Corporation Ballast adaptor for improving operation of fluorescent lamps
US5606222A (en) * 1994-12-29 1997-02-25 Philips Electronics North America Corporation Lighting system with a device for reducing system wattage

Also Published As

Publication number Publication date
CH406426A (en) 1966-01-31
ES298259A1 (en) 1964-06-01
NL121718C (en) 1967-05-16
AT239920B (en) 1965-05-10
DK107046C (en) 1967-04-17

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