GB1181523A - Improvements in and relating to Electric Pulse Apparatus. - Google Patents

Improvements in and relating to Electric Pulse Apparatus.

Info

Publication number
GB1181523A
GB1181523A GB3303667A GB3303667A GB1181523A GB 1181523 A GB1181523 A GB 1181523A GB 3303667 A GB3303667 A GB 3303667A GB 3303667 A GB3303667 A GB 3303667A GB 1181523 A GB1181523 A GB 1181523A
Authority
GB
United Kingdom
Prior art keywords
lamp
capacitor
voltage
recurrently
strike
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.)
Expired
Application number
GB3303667A
Inventor
William Arthur Ward
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.)
United States Scientific Instruments Inc
Original Assignee
United States Scientific Instruments Inc
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 United States Scientific Instruments Inc filed Critical United States Scientific Instruments Inc
Priority to GB3303667A priority Critical patent/GB1181523A/en
Publication of GB1181523A publication Critical patent/GB1181523A/en
Expired 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
    • H05B41/34—Circuit arrangements in which the lamp is fed by pulses, e.g. flash lamp to provide a sequence of flashes
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K3/00—Circuits for generating electric pulses; Monostable, bistable or multistable circuits
    • H03K3/02—Generators characterised by the type of circuit or by the means used for producing pulses
    • H03K3/53—Generators characterised by the type of circuit or by the means used for producing pulses by the use of an energy-accumulating element discharged through the load by a switching device controlled by an external signal and not incorporating positive feedback
    • H03K3/55—Generators characterised by the type of circuit or by the means used for producing pulses by the use of an energy-accumulating element discharged through the load by a switching device controlled by an external signal and not incorporating positive feedback the switching device being a gas-filled tube having a control electrode

Landscapes

  • Circuit Arrangements For Discharge Lamps (AREA)

Abstract

1,181,523 Control systems for electric discharge flash-lamps. UNITED STATES SCIENTIFIC INSTRUMENTS Inc. 18 July, 1967, No. 33036/67. Heading H2H. Apparatus for recurrently igniting a gaseous discharge lamp 1 comprises a capacitor C<SP>1</SP> charged from a D.C. source over an inductor R 3 to a voltage which is insufficient to strike the lamp 1 and a second capacitor C 1 which is charged from a D.C. source over a resistor R 2 and the primary winding P of a transformer T, a silicon controlled rectifier R being rendered conductive recurrently by a train of pulses TP so as to discharge the capacitor C 1 through the primary winding P of transformer T, the voltage pulses which are thereby induced in the secondary winding S being of sufficient magnitude to strike the lamp 1 whereupon the capacitor C<SP>1</SP> discharges through the lamp giving a series of flashes, the circuit being provided with a junction type semi-conductor diode R<SP>1</SP> to provide isolation between the capacitors C<SP>1</SP>, C 1 . The lamp may be provided with a trigger electrode 7. The Specification contains references to the values of the rated peak currents, the voltage hold off ratings, the recurrent surge current ratings and instantaneous peak current ratings of the semi-conductor devices R, R<SP>1</SP>, all of which have a bearing on the manner in which the apparatus functions.
GB3303667A 1967-07-18 1967-07-18 Improvements in and relating to Electric Pulse Apparatus. Expired GB1181523A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3303667A GB1181523A (en) 1967-07-18 1967-07-18 Improvements in and relating to Electric Pulse Apparatus.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3303667A GB1181523A (en) 1967-07-18 1967-07-18 Improvements in and relating to Electric Pulse Apparatus.

Publications (1)

Publication Number Publication Date
GB1181523A true GB1181523A (en) 1970-02-18

Family

ID=10347656

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3303667A Expired GB1181523A (en) 1967-07-18 1967-07-18 Improvements in and relating to Electric Pulse Apparatus.

Country Status (1)

Country Link
GB (1) GB1181523A (en)

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