FR2379966A2 - Supply circuit for discharge lamps - has filaments preheating circuit incorporated in booster circuit - Google Patents

Supply circuit for discharge lamps - has filaments preheating circuit incorporated in booster circuit

Info

Publication number
FR2379966A2
FR2379966A2 FR7802685A FR7802685A FR2379966A2 FR 2379966 A2 FR2379966 A2 FR 2379966A2 FR 7802685 A FR7802685 A FR 7802685A FR 7802685 A FR7802685 A FR 7802685A FR 2379966 A2 FR2379966 A2 FR 2379966A2
Authority
FR
France
Prior art keywords
circuit
booster
preheating
discharge lamps
filaments
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.)
Granted
Application number
FR7802685A
Other languages
French (fr)
Other versions
FR2379966B2 (en
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
Priority claimed from FR7600773A external-priority patent/FR2353199A1/en
Priority claimed from JP52011040A external-priority patent/JPS5821796B2/en
Priority claimed from JP3006577A external-priority patent/JPS53114271A/en
Priority claimed from JP3512877U external-priority patent/JPS53129190U/ja
Application filed by New Nippon Electric Co Ltd filed Critical New Nippon Electric Co Ltd
Publication of FR2379966A2 publication Critical patent/FR2379966A2/en
Application granted granted Critical
Publication of FR2379966B2 publication Critical patent/FR2379966B2/fr
Granted 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
    • H05B41/02—Details
    • H05B41/04—Starting switches
    • H05B41/042—Starting switches using semiconductor devices
    • H05B41/044—Starting switches using semiconductor devices for lamp provided with pre-heating electrodes

Abstract

The supply circuit for one or more discharge lamps, has the circuitry of the main patent, with the addition that the current limiter comprises a simple winding, and that the preheating circuit for the lamp filaments is incorporated in the booster circuit so that the booster current flows through the preheating circuit. The booster circuit consists of an oscillator and a capacitor. The oscillator contains a resonant capacitor and the series combination of a switch and an inductor in parallel with this capacitor.
FR7802685A 1976-01-08 1978-01-31 Supply circuit for discharge lamps - has filaments preheating circuit incorporated in booster circuit Granted FR2379966A2 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
FR7600773A FR2353199A1 (en) 1976-01-08 1976-01-08 Electric discharge lamp power supply unit - has low frequency current supply with high frequency voltage superimposed
JP52011040A JPS5821796B2 (en) 1977-02-02 1977-02-02 Discharge lamp lighting method
JP3006577A JPS53114271A (en) 1977-03-17 1977-03-17 Device for firing discharge lamp
JP3512877U JPS53129190U (en) 1977-03-23 1977-03-23

Publications (2)

Publication Number Publication Date
FR2379966A2 true FR2379966A2 (en) 1978-09-01
FR2379966B2 FR2379966B2 (en) 1983-12-09

Family

ID=27446316

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7802685A Granted FR2379966A2 (en) 1976-01-08 1978-01-31 Supply circuit for discharge lamps - has filaments preheating circuit incorporated in booster circuit

Country Status (1)

Country Link
FR (1) FR2379966A2 (en)

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1528704A (en) * 1967-04-07 1968-06-14 Matsushita Electric Works Ltd Improved ignition device for discharge lamps
DE2009023A1 (en) * 1969-02-27 1970-09-10 New Nippon Electric Company Ltd., Osaka (Japan) Circuit arrangement for igniting a discharge lamp
FR2089454A5 (en) * 1970-04-09 1972-01-07 Voegeli Ernst
US3644780A (en) * 1968-12-27 1972-02-22 Matsushita Electric Ind Co Ltd Starting device for discharge lamp including semiconductors preheating and starting circuits
US3753037A (en) * 1970-02-26 1973-08-14 New Nippon Electric Co Discharge-lamp operating device using thyristor oscillating circuit
FR2279302A1 (en) * 1974-07-16 1976-02-13 Radiotechnique Compelec Starting circuit for discharge tube - has thyristor and inductor in series to maintain voltage peaks constant
US3942069A (en) * 1973-09-13 1976-03-02 Nec Sylvania Corporation Discharge lamp lighting apparatus and method
FR2285780A1 (en) * 1974-09-18 1976-04-16 Radiotechnique Compelec DEVICE INTENDED TO PRIME A DISCHARGE TUBE

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1528704A (en) * 1967-04-07 1968-06-14 Matsushita Electric Works Ltd Improved ignition device for discharge lamps
US3644780A (en) * 1968-12-27 1972-02-22 Matsushita Electric Ind Co Ltd Starting device for discharge lamp including semiconductors preheating and starting circuits
DE2009023A1 (en) * 1969-02-27 1970-09-10 New Nippon Electric Company Ltd., Osaka (Japan) Circuit arrangement for igniting a discharge lamp
US3753037A (en) * 1970-02-26 1973-08-14 New Nippon Electric Co Discharge-lamp operating device using thyristor oscillating circuit
FR2089454A5 (en) * 1970-04-09 1972-01-07 Voegeli Ernst
US3942069A (en) * 1973-09-13 1976-03-02 Nec Sylvania Corporation Discharge lamp lighting apparatus and method
FR2279302A1 (en) * 1974-07-16 1976-02-13 Radiotechnique Compelec Starting circuit for discharge tube - has thyristor and inductor in series to maintain voltage peaks constant
FR2285780A1 (en) * 1974-09-18 1976-04-16 Radiotechnique Compelec DEVICE INTENDED TO PRIME A DISCHARGE TUBE

Also Published As

Publication number Publication date
FR2379966B2 (en) 1983-12-09

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