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GB1115478A - Improvements in or relating to lamp circuits - Google Patents

Improvements in or relating to lamp circuits

Info

Publication number
GB1115478A
GB1115478A GB3443965A GB3443965A GB1115478A GB 1115478 A GB1115478 A GB 1115478A GB 3443965 A GB3443965 A GB 3443965A GB 3443965 A GB3443965 A GB 3443965A GB 1115478 A GB1115478 A GB 1115478A
Authority
GB
United Kingdom
Prior art keywords
aug
relating
circuit
heater
lamp circuits
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
GB3443965A
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.)
New Nippon Electric Co Ltd
Original Assignee
New Nippon Electric Co 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 New Nippon Electric Co Ltd filed Critical New Nippon Electric Co Ltd
Publication of GB1115478A publication Critical patent/GB1115478A/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

Landscapes

  • Circuit Arrangements For Discharge Lamps (AREA)

Abstract

1,115,478. Discharge lamp circuits. NEW NIPPON ELECTRIC CO. Ltd. 11 Aug., 1965 [14 Aug., 1964; 28 Nov., 1964; 9 Dec., 1964], No. 34439/65. Heading H2H. A discharge lamp circuit has voltages of differing but related frequency supplied respectively to the heaters and discharge path to produce an oscillating arc spot on each heater to permit the lamp current to be increased. The heater current may be produced in an inverter fed from the same supply (Figs. 4 and 5, not shown), or a third harmonic accentuating circuit (Fig. 8, not shown).
GB3443965A 1964-08-14 1965-08-11 Improvements in or relating to lamp circuits Expired GB1115478A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP4668464 1964-08-14
JP6712764 1964-11-28
JP6954164 1964-12-09

Publications (1)

Publication Number Publication Date
GB1115478A true GB1115478A (en) 1968-05-29

Family

ID=27292692

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3443965A Expired GB1115478A (en) 1964-08-14 1965-08-11 Improvements in or relating to lamp circuits

Country Status (3)

Country Link
DE (1) DE1255812B (en)
GB (1) GB1115478A (en)
NL (1) NL6510575A (en)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2337992A (en) * 1942-01-14 1943-12-28 Alfred P Daniels High power factor high intensity lamp circuit
US2337993A (en) * 1942-01-14 1943-12-28 Alfred P Daniels High power factor and high intensity lamp circuit
FR912144A (en) * 1945-06-29 1946-07-31 Lampes Sa Improvements to discharge tubes

Also Published As

Publication number Publication date
NL6510575A (en) 1966-02-15
DE1255812B (en) 1967-12-07

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