SE9500380D0 - Lighting equipment - Google Patents

Lighting equipment

Info

Publication number
SE9500380D0
SE9500380D0 SE9500380A SE9500380A SE9500380D0 SE 9500380 D0 SE9500380 D0 SE 9500380D0 SE 9500380 A SE9500380 A SE 9500380A SE 9500380 A SE9500380 A SE 9500380A SE 9500380 D0 SE9500380 D0 SE 9500380D0
Authority
SE
Sweden
Prior art keywords
current
capacitor
series
discharge tube
inductor
Prior art date
Application number
SE9500380A
Other languages
Swedish (sv)
Other versions
SE9500380L (en
SE504991C2 (en
Inventor
Kjeld Thorborg
Original Assignee
Kjeld Thorborg Ab
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
Publication of SE9500380L publication Critical patent/SE9500380L/xx
Application filed by Kjeld Thorborg Ab filed Critical Kjeld Thorborg Ab
Priority to SE9500380A priority Critical patent/SE504991C2/en
Publication of SE9500380D0 publication Critical patent/SE9500380D0/en
Publication of SE504991C2 publication Critical patent/SE504991C2/en

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

Landscapes

  • Circuit Arrangements For Discharge Lamps (AREA)

Abstract

The gas discharge tube (1) and inductor (2) are parallel-coupled with a capacitor (3) for phase compensation. The capacitor is series-coupled with another inductor, which together with the capacitor forms a series resonance circuit tuned to an overtone current with the ordinal number p, where 2 is less than p is less then 3. For basic tones, the transformer has a series inductance and there is one fitting per phase with its inductances and capacitances. For an equivalent single phase scheme for third tones, the discharge tube acts as an overtone current generator for voltage, which ends out an overtone current through series inductor inductances to a parallel oscillation circuit comprising capacitor capacitances and the feed transformer series inductance. The current in the oscillation circuit can be considerably greater than the current through the discharge tube.
SE9500380A 1995-02-02 1995-02-02 Lighting fitting comprising sodium high pressure lamp SE504991C2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SE9500380A SE504991C2 (en) 1995-02-02 1995-02-02 Lighting fitting comprising sodium high pressure lamp

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE9500380A SE504991C2 (en) 1995-02-02 1995-02-02 Lighting fitting comprising sodium high pressure lamp

Publications (3)

Publication Number Publication Date
SE9500380L SE9500380L (en)
SE9500380D0 true SE9500380D0 (en) 1995-02-02
SE504991C2 SE504991C2 (en) 1997-06-09

Family

ID=20397067

Family Applications (1)

Application Number Title Priority Date Filing Date
SE9500380A SE504991C2 (en) 1995-02-02 1995-02-02 Lighting fitting comprising sodium high pressure lamp

Country Status (1)

Country Link
SE (1) SE504991C2 (en)

Also Published As

Publication number Publication date
SE9500380L (en)
SE504991C2 (en) 1997-06-09

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Legal Events

Date Code Title Description
NUG Patent has lapsed