SE8702032L - PROCEDURE FOR LIGHTING LIGHT LIGHTING LIGHTS AND A LIGHTING AND FEATURING CONNECTION FOR LIGHTING LIGHTING LIGHTS - Google Patents

PROCEDURE FOR LIGHTING LIGHT LIGHTING LIGHTS AND A LIGHTING AND FEATURING CONNECTION FOR LIGHTING LIGHTING LIGHTS

Info

Publication number
SE8702032L
SE8702032L SE8702032A SE8702032A SE8702032L SE 8702032 L SE8702032 L SE 8702032L SE 8702032 A SE8702032 A SE 8702032A SE 8702032 A SE8702032 A SE 8702032A SE 8702032 L SE8702032 L SE 8702032L
Authority
SE
Sweden
Prior art keywords
lighting
frequency
lights
oscillator
cathodes
Prior art date
Application number
SE8702032A
Other languages
Swedish (sv)
Other versions
SE8702032D0 (en
SE465055B (en
Inventor
M Rahkala
Original Assignee
Teknoware Oy
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 Teknoware Oy filed Critical Teknoware Oy
Publication of SE8702032D0 publication Critical patent/SE8702032D0/en
Publication of SE8702032L publication Critical patent/SE8702032L/en
Publication of SE465055B publication Critical patent/SE465055B/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
    • 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
    • H05B41/233—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 using resonance circuitry

Landscapes

  • Circuit Arrangements For Discharge Lamps (AREA)

Abstract

The invention concerns an ignition and exciter connection which comprises an oscillator 1, an amplifier 2 controlled by this and connected to a DC power source, a transformer 4 supplied by the amplifier and a series resonance circuit formed by the secondary winding 4b of the transformer, an impedance coil 5, a condenser 7 and the cathodes 9 of the fluorescent strip, which series resonance circuit has a resonance frequency which principally corresponds to the oscillation frequency of the oscillator, where the fluorescent strip 8 is connected in parallel with the condenser 7. In order to permit sufficient warming up of the cathodes before sufficient voltage for ignition is connected across the light, a procedure is followed according to the invention such that the ratio between the frequency of the oscillator 1 and the resonance frequency of the resonance circuit after the power is connected is controlled during the required warming-up period so that the frequency of the oscillator is essentially higher than the resonance frequency of the resonance circuit. Heating coils 6 are connected in parallel with the cathodes 9 of the fluorescent strip 8, which increases the current through the cathodes during the warming-up stage. <IMAGE>
SE8702032A 1986-05-19 1987-05-18 Ignition and exciter connection for fluorescent strip lights SE465055B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FI862080A FI77957C (en) 1986-05-19 1986-05-19 Ignition and supply coupling for lamps.

Publications (3)

Publication Number Publication Date
SE8702032D0 SE8702032D0 (en) 1987-05-18
SE8702032L true SE8702032L (en) 1987-11-20
SE465055B SE465055B (en) 1991-07-15

Family

ID=8522632

Family Applications (1)

Application Number Title Priority Date Filing Date
SE8702032A SE465055B (en) 1986-05-19 1987-05-18 Ignition and exciter connection for fluorescent strip lights

Country Status (3)

Country Link
DK (1) DK254387A (en)
FI (1) FI77957C (en)
SE (1) SE465055B (en)

Also Published As

Publication number Publication date
FI77957C (en) 1989-05-10
DK254387D0 (en) 1987-05-19
FI862080A (en) 1987-11-20
SE8702032D0 (en) 1987-05-18
SE465055B (en) 1991-07-15
DK254387A (en) 1987-11-20
FI862080A0 (en) 1986-05-19
FI77957B (en) 1989-01-31

Similar Documents

Publication Publication Date Title
US4453109A (en) Magnetic transformer switch and combination thereof with a discharge lamp
US4484108A (en) High frequency ballast-ignition system for discharge lamps
ATE205042T1 (en) CIRCUIT ARRANGEMENT FOR COIL PREHEATING OF FLUORESCENT LAMPS
US2964676A (en) Circuit arrangements for operating low pressure electric discharge lamps
FI820146L (en) FOERFARANDE OCH KOPPLINGSANORDNING FOER UPPHETTNING OCH TAENDNING AV EN LAOGTRYCKSGASURLAGGNINGSLAMPA SAMT REGLERING AV DES LYSSTROEM
JPH03102798A (en) Circuit apparatus for starting and lighting gas discharge lamp
JP2636239B2 (en) Ballast for fluorescent lamp
EP0317698B1 (en) Neon tube lighting device
SE8702032D0 (en) PROCEDURE FOR LIGHTING LIGHT LIGHTING LIGHTS AND A LIGHTING AND FEATURING CONNECTION FOR LIGHTING LIGHTING LIGHTS
ATE98837T1 (en) BALLAST FOR A DIRECTLY HEATED DISCHARGE LAMP.
US6242869B1 (en) Fluorescent lamp stabilizer harmonics reduction method
JPH062239Y2 (en) Discharge lamp lighting device
SU989758A1 (en) Device for supplying gas discharge lamp
JPH02148697A (en) Discharge lamp lighting device
JPH048915B2 (en)
KR890008738Y1 (en) Circuit arrangements for operating discharge lamps
JPS5917116Y2 (en) discharge lamp lighting device
JPS6122440B2 (en)
JPH03147295A (en) Discharge lamp lighting device
GB2151090A (en) Electronic ballast
JPH0312438B2 (en)
FI850084L (en) FREKVENSSTABILISERAT AUTOMATISKT FOERSTAERKNINGSREGLERAT BALLASTSYSTEM.
EP0096105A3 (en) Instant start solid state ballast for fluorescent and gas-dis charge lamps
JPH01124999A (en) Hot cathode discharge lamp lighting device
JPH04368473A (en) Inverter

Legal Events

Date Code Title Description
NAL Patent in force

Ref document number: 8702032-7

Format of ref document f/p: F

NUG Patent has lapsed

Ref document number: 8702032-7

Format of ref document f/p: F