FR2418603A1 - POWER SUPPLY FOR AN ELECTRONIC FLASH - Google Patents

POWER SUPPLY FOR AN ELECTRONIC FLASH

Info

Publication number
FR2418603A1
FR2418603A1 FR7905011A FR7905011A FR2418603A1 FR 2418603 A1 FR2418603 A1 FR 2418603A1 FR 7905011 A FR7905011 A FR 7905011A FR 7905011 A FR7905011 A FR 7905011A FR 2418603 A1 FR2418603 A1 FR 2418603A1
Authority
FR
France
Prior art keywords
voltage
power supply
electronic flash
voltage converter
photography
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
FR7905011A
Other languages
French (fr)
Other versions
FR2418603B3 (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.)
Fuji Koeki Corp
Original Assignee
Fuji Koeki Corp
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 JP2220578A external-priority patent/JPS54115131A/en
Priority claimed from JP5876778A external-priority patent/JPS54150868A/en
Priority claimed from JP15519578A external-priority patent/JPS5581327A/en
Application filed by Fuji Koeki Corp filed Critical Fuji Koeki Corp
Publication of FR2418603A1 publication Critical patent/FR2418603A1/en
Application granted granted Critical
Publication of FR2418603B3 publication Critical patent/FR2418603B3/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
    • H05B41/30—Circuit arrangements in which the lamp is fed by pulses, e.g. flash lamp
    • H05B41/32—Circuit arrangements in which the lamp is fed by pulses, e.g. flash lamp for single flash operation
    • 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
    • H02M3/00—Conversion of dc power input into dc power output
    • H02M3/22—Conversion of dc power input into dc power output with intermediate conversion into ac
    • H02M3/24—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters
    • H02M3/28—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac
    • H02M3/325—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal
    • H02M3/335—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only
    • H02M3/338—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only in a self-oscillating arrangement
    • H02M3/3385—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only in a self-oscillating arrangement with automatic control of output voltage or current

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Discharge-Lamp Control Circuits And Pulse- Feed Circuits (AREA)
  • Circuit Arrangements For Discharge Lamps (AREA)

Abstract

L'invention concerne les circuits d'alimentation pour flash électronique. L'alimentation de l'invention comprend essentiellement un convertisseur de tension B qui fournit une tension alternative élevée à partir d'une tension continue basse, et un circuit redresseur C qui charge un condensateur de stockage d'énergie 20. Des éléments supplémentaires commandent le démarrage et l'arrêt du fonctionnement du circuit convertisseur de tension, pour réduire la consommation au minimum. Application à la photographie.The invention relates to power circuits for electronic flash. The power supply of the invention essentially comprises a voltage converter B which supplies a high AC voltage from a low DC voltage, and a rectifier circuit C which charges an energy storage capacitor 20. Additional elements control the voltage. starting and stopping the operation of the voltage converter circuit, to reduce consumption to a minimum. Application to photography.

FR7905011A 1978-02-28 1979-02-27 POWER SUPPLY FOR AN ELECTRONIC FLASH Granted FR2418603A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2220578A JPS54115131A (en) 1978-02-28 1978-02-28 Electric source apparatus of flash lamp
JP5876778A JPS54150868A (en) 1978-05-19 1978-05-19 Power source device of flashing apparatus
JP15519578A JPS5581327A (en) 1978-12-16 1978-12-16 Power source device of flash device

Publications (2)

Publication Number Publication Date
FR2418603A1 true FR2418603A1 (en) 1979-09-21
FR2418603B3 FR2418603B3 (en) 1982-02-19

Family

ID=27283758

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7905011A Granted FR2418603A1 (en) 1978-02-28 1979-02-27 POWER SUPPLY FOR AN ELECTRONIC FLASH

Country Status (4)

Country Link
DE (1) DE2907784A1 (en)
FR (1) FR2418603A1 (en)
GB (1) GB2019675B (en)
NL (1) NL7901544A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2541064A1 (en) * 1983-02-15 1984-08-17 Olympus Optical Co LIGHT EMISSION APPARATUS

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2841399A1 (en) * 1977-09-25 1979-03-29 Fuji Koeki Corp FLASH DEVICE
DE2900608A1 (en) * 1978-01-17 1979-07-19 Fuji Koeki Corp POWER SUPPLY DEVICE

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2541064A1 (en) * 1983-02-15 1984-08-17 Olympus Optical Co LIGHT EMISSION APPARATUS

Also Published As

Publication number Publication date
DE2907784A1 (en) 1979-08-30
FR2418603B3 (en) 1982-02-19
GB2019675A (en) 1979-10-31
NL7901544A (en) 1979-08-30
GB2019675B (en) 1982-12-22

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