FR2438368A1 - Static inverter for fluorescent tube - uses tuned primary of transformer to provide inaudible oscillator frequency, with tube connected to secondary windings - Google Patents

Static inverter for fluorescent tube - uses tuned primary of transformer to provide inaudible oscillator frequency, with tube connected to secondary windings

Info

Publication number
FR2438368A1
FR2438368A1 FR7828463A FR7828463A FR2438368A1 FR 2438368 A1 FR2438368 A1 FR 2438368A1 FR 7828463 A FR7828463 A FR 7828463A FR 7828463 A FR7828463 A FR 7828463A FR 2438368 A1 FR2438368 A1 FR 2438368A1
Authority
FR
France
Prior art keywords
transformer
inductor
secondary windings
static inverter
fluorescent tube
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
FR7828463A
Other languages
French (fr)
Other versions
FR2438368B1 (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.)
Faiveley Transport SA
Original Assignee
Faiveley SA
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 Faiveley SA filed Critical Faiveley SA
Priority to FR7828463A priority Critical patent/FR2438368A1/en
Publication of FR2438368A1 publication Critical patent/FR2438368A1/en
Application granted granted Critical
Publication of FR2438368B1 publication Critical patent/FR2438368B1/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
    • H05B41/14—Circuit arrangements
    • H05B41/26—Circuit arrangements in which the lamp is fed by power derived from dc by means of a converter, e.g. by high-voltage dc
    • H05B41/28—Circuit arrangements in which the lamp is fed by power derived from dc by means of a converter, e.g. by high-voltage dc using static converters
    • H05B41/282—Circuit arrangements in which the lamp is fed by power derived from dc by means of a converter, e.g. by high-voltage dc using static converters with semiconductor devices
    • H05B41/2821—Circuit arrangements in which the lamp is fed by power derived from dc by means of a converter, e.g. by high-voltage dc using static converters with semiconductor devices by means of a single-switch converter or a parallel push-pull converter in the final stage
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
    • H02M7/42—Conversion of dc power input into ac power output without possibility of reversal
    • H02M7/44—Conversion of dc power input into ac power output without possibility of reversal by static converters
    • H02M7/48—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
    • H02M7/53—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
    • H02M7/537—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters
    • H02M7/5383—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters in a self-oscillating arrangement

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Circuit Arrangements For Discharge Lamps (AREA)

Abstract

The static inverter converts d c from a battery supply into a.c. to power a fluorescent tube. The frequency of oscillation is inaudible and provides a means of lighting railway carriages. This is obtained by tuning the primary o/a transformer. A battery supply is connected to the centre tap on the transformer (5) primary winding (4). A zener diode (21) stabilises the voltage while a capacitor (19) and inductor (18) provide filtering. A capacitor (22) tunes the primary winding which is coupled via an inductor (23) to the collector of a transistor (24). The base is coupled magnetically via a feedback inductor (25) to the principal transformer (5). An inductor (32) coupled magnetically to the collector inductor (23) comprises a recovery transformer (33) to improve conversion efficiency. The fluorescent tubes are connected to the transformer secondary windings.
FR7828463A 1978-10-05 1978-10-05 Static inverter for fluorescent tube - uses tuned primary of transformer to provide inaudible oscillator frequency, with tube connected to secondary windings Granted FR2438368A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7828463A FR2438368A1 (en) 1978-10-05 1978-10-05 Static inverter for fluorescent tube - uses tuned primary of transformer to provide inaudible oscillator frequency, with tube connected to secondary windings

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7828463A FR2438368A1 (en) 1978-10-05 1978-10-05 Static inverter for fluorescent tube - uses tuned primary of transformer to provide inaudible oscillator frequency, with tube connected to secondary windings

Publications (2)

Publication Number Publication Date
FR2438368A1 true FR2438368A1 (en) 1980-04-30
FR2438368B1 FR2438368B1 (en) 1981-03-06

Family

ID=9213368

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7828463A Granted FR2438368A1 (en) 1978-10-05 1978-10-05 Static inverter for fluorescent tube - uses tuned primary of transformer to provide inaudible oscillator frequency, with tube connected to secondary windings

Country Status (1)

Country Link
FR (1) FR2438368A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2517922A1 (en) * 1981-12-07 1983-06-10 Krauss Innovatron METHOD FOR APPLYING VOLTAGE TO GAS DISCHARGE LAMPS AND DEVICE COMPRISING A GAS DISCHARGE LAMP AND APPARATUS FOR APPLYING VOLTAGE TO THESE LAMPS
WO1985000939A1 (en) * 1983-08-10 1985-02-28 Ritchie Gordon S Electrical power supply apparatus

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1323449A (en) * 1962-06-01 1963-04-05 Thomson Houston Comp Francaise Improvements to the ballast circuit
DE2018152A1 (en) * 1969-04-24 1970-11-12 Thorn Lighting Ltd., London Oscillator improvements
FR2153079A1 (en) * 1971-09-17 1973-04-27 Philips Nv
US4007413A (en) * 1975-12-08 1977-02-08 Bell Telephone Laboratories, Incorporated Converter utilizing leakage inductance to control energy flow and improve signal waveforms

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1323449A (en) * 1962-06-01 1963-04-05 Thomson Houston Comp Francaise Improvements to the ballast circuit
DE2018152A1 (en) * 1969-04-24 1970-11-12 Thorn Lighting Ltd., London Oscillator improvements
FR2153079A1 (en) * 1971-09-17 1973-04-27 Philips Nv
US4007413A (en) * 1975-12-08 1977-02-08 Bell Telephone Laboratories, Incorporated Converter utilizing leakage inductance to control energy flow and improve signal waveforms

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
NV8038/70 *

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2517922A1 (en) * 1981-12-07 1983-06-10 Krauss Innovatron METHOD FOR APPLYING VOLTAGE TO GAS DISCHARGE LAMPS AND DEVICE COMPRISING A GAS DISCHARGE LAMP AND APPARATUS FOR APPLYING VOLTAGE TO THESE LAMPS
WO1985000939A1 (en) * 1983-08-10 1985-02-28 Ritchie Gordon S Electrical power supply apparatus
GB2158306A (en) * 1983-08-10 1985-11-06 Ritchie Gordon S Electrical power supply apparatus

Also Published As

Publication number Publication date
FR2438368B1 (en) 1981-03-06

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Legal Events

Date Code Title Description
ST Notification of lapse