GB931659A - Deflection circuits for television receivers - Google Patents

Deflection circuits for television receivers

Info

Publication number
GB931659A
GB931659A GB4478960A GB4478960A GB931659A GB 931659 A GB931659 A GB 931659A GB 4478960 A GB4478960 A GB 4478960A GB 4478960 A GB4478960 A GB 4478960A GB 931659 A GB931659 A GB 931659A
Authority
GB
United Kingdom
Prior art keywords
line
inductor
tap
dec
output stage
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
GB4478960A
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.)
STC PLC
Original Assignee
Standard Telephone and Cables PLC
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 Standard Telephone and Cables PLC filed Critical Standard Telephone and Cables PLC
Publication of GB931659A publication Critical patent/GB931659A/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
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K12/00—Producing pulses by distorting or combining sinusoidal waveforms
    • 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
    • H03K4/12—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 voltage is produced across a capacitor
    • H03K4/16—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 voltage is produced across a capacitor using a single tube with positive feedback through transformer, e.g. blocking oscillator

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Details Of Television Scanning (AREA)

Abstract

931,659. Saw-tooth generating circuits. STANDARD TELEPHONES & CABLES Ltd. Dec. 30, 1960 [Dec. 31, 1959], No. 44789/60. Class 40 (6). In a line timebase for a television receiver, the rise time of the flyback is reduced by positive feedback from the output stage 14 to a tap 6 on the inductor 3 of the line oscillator 10. As shown, the frequency of the line oscillator is controlled by a circuit 2, 3 tuned to the nth harmonic of the line frequency. The valve 10 becomes conductive during the positive peak of every n cycles of the sine wave at the grid, giving a negative-going pulse which is shaped by circuit 16 and used to terminate the sweep produced by the output stage 14. This action is made more rapid by feeding back the rise in screen voltage to the tap 6 on inductor 3.
GB4478960A 1959-12-31 1960-12-30 Deflection circuits for television receivers Expired GB931659A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEST15954A DE1114223B (en) 1959-12-31 1959-12-31 Arrangement for increasing the edge steepness of the control pulses for output stages of the deflection circuits of television receivers

Publications (1)

Publication Number Publication Date
GB931659A true GB931659A (en) 1963-07-17

Family

ID=7456883

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4478960A Expired GB931659A (en) 1959-12-31 1960-12-30 Deflection circuits for television receivers

Country Status (2)

Country Link
DE (1) DE1114223B (en)
GB (1) GB931659A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1196702B (en) * 1964-02-12 1965-07-15 Blaupunkt Werke Gmbh Line deflection oscillator for a television receiver
DE1216354B (en) * 1964-03-02 1966-05-12 Blaupunkt Werke Gmbh Circuit arrangement for generating the line deflection currents of a television receiver

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2627588A (en) * 1951-06-21 1953-02-03 Gen Electric Electromagnetic scanning amplifier circuit

Also Published As

Publication number Publication date
DE1114223B (en) 1961-09-28

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