GB520824A - Improvements relating to saw-tooth electric oscillation generators - Google Patents

Improvements relating to saw-tooth electric oscillation generators

Info

Publication number
GB520824A
GB520824A GB266040A GB266040A GB520824A GB 520824 A GB520824 A GB 520824A GB 266040 A GB266040 A GB 266040A GB 266040 A GB266040 A GB 266040A GB 520824 A GB520824 A GB 520824A
Authority
GB
United Kingdom
Prior art keywords
valve
saw
condenser
resistance
flyback
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
GB266040A
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.)
WALTER HENRY STEVENS
AC Cossor Ltd
Original Assignee
WALTER HENRY STEVENS
AC Cossor 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
Application filed by WALTER HENRY STEVENS, AC Cossor Ltd filed Critical WALTER HENRY STEVENS
Priority to GB266040A priority Critical patent/GB520824A/en
Publication of GB520824A publication Critical patent/GB520824A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K4/00—Generating pulses having essentially a finite slope or stepped portions
    • H03K4/06—Generating pulses having essentially a finite slope or stepped portions having triangular shape
    • H03K4/08—Generating pulses having essentially a finite slope or stepped portions having triangular shape having sawtooth shape
    • H03K4/10—Generating pulses having essentially a finite slope or stepped portions having triangular shape having sawtooth shape using as active elements vacuum tubes only
    • H03K4/26—Generating pulses having essentially a finite slope or stepped portions having triangular shape having sawtooth shape using as active elements vacuum tubes only in which a sawtooth current is produced through an inductor
    • H03K4/39—Generating pulses having essentially a finite slope or stepped portions having triangular shape having sawtooth shape using as active elements vacuum tubes only in which a sawtooth current is produced through an inductor using a tube operating as an amplifier
    • H03K4/43—Generating pulses having essentially a finite slope or stepped portions having triangular shape having sawtooth shape using as active elements vacuum tubes only in which a sawtooth current is produced through an inductor using a tube operating as an amplifier combined with means for generating the driving pulses

Landscapes

  • Details Of Television Scanning (AREA)

Abstract

520,824. Valve generating circuits. COSSOR, Ltd., A. C., BEDFORD, L. H., JOFEH, L., and STEVENS, W. H. May 10, 1938, No. 2660/40. Divided out of 519,668. [Class 40 (v)] Relates to an oscillation generator in which a saw-tooth voltage is developed across a condenser, the rapid charge or discharge of which, at flyback in the case of television scanning, is effected by a thermionic valve, and in which the saw-tooth voltage is applied to the grid of an output valve. The output valve supplies a saw-tooth current to an inductive load, a resistance being included in series with the discharge valve and so arranged that during flyback the potential drop in this resistance is superimposed upon the condenser voltage. In this way the current through the valve is cut off throughout the highly positive excursion of its anode at flyback. The Figure shows a condenser C 1 charged through resistance R 1 and discharged by a valve V 2 in series with resistance R 2 . A feedback coupling through condenser C 3 ensures that the discharge valve V 2 is held open throughout the high potential excursion of the anode of the valve V 1 . Synchronizing signals may be applied at the point Sn and are amplified by the valve V 1 and applied to the grid of the valve V 2 by the feedback coupling as positive pulses.
GB266040A 1938-05-10 1938-05-10 Improvements relating to saw-tooth electric oscillation generators Expired GB520824A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB266040A GB520824A (en) 1938-05-10 1938-05-10 Improvements relating to saw-tooth electric oscillation generators

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB266040A GB520824A (en) 1938-05-10 1938-05-10 Improvements relating to saw-tooth electric oscillation generators

Publications (1)

Publication Number Publication Date
GB520824A true GB520824A (en) 1940-05-03

Family

ID=9743505

Family Applications (1)

Application Number Title Priority Date Filing Date
GB266040A Expired GB520824A (en) 1938-05-10 1938-05-10 Improvements relating to saw-tooth electric oscillation generators

Country Status (1)

Country Link
GB (1) GB520824A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1012708B (en) * 1952-06-11 1957-07-25 Telefunken Gmbh Circuit for generating a saw tooth-shaped current

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1012708B (en) * 1952-06-11 1957-07-25 Telefunken Gmbh Circuit for generating a saw tooth-shaped current

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