GB996336A - Improvements relating to frequency controlled circuit arrangements for the generation of oscillations - Google Patents

Improvements relating to frequency controlled circuit arrangements for the generation of oscillations

Info

Publication number
GB996336A
GB996336A GB1100462A GB1100462A GB996336A GB 996336 A GB996336 A GB 996336A GB 1100462 A GB1100462 A GB 1100462A GB 1100462 A GB1100462 A GB 1100462A GB 996336 A GB996336 A GB 996336A
Authority
GB
United Kingdom
Prior art keywords
phase
oscillations
oscillator
march
frequency
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
GB1100462A
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.)
Telefunken Patentverwertungs GmbH
Original Assignee
Telefunken Patentverwertungs GmbH
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 Telefunken Patentverwertungs GmbH filed Critical Telefunken Patentverwertungs GmbH
Publication of GB996336A publication Critical patent/GB996336A/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
    • H03K4/12—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
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03B—GENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS
    • H03B5/00—Generation of oscillations using amplifier with regenerative feedback from output to input
    • H03B5/08—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance
    • H03B5/10—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance active element in amplifier being vacuum tube
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/04—Synchronising
    • H04N5/12—Devices in which the synchronising signals are only operative if a phase difference occurs between synchronising and synchronised scanning devices, e.g. flywheel synchronising
    • H04N5/126—Devices in which the synchronising signals are only operative if a phase difference occurs between synchronising and synchronised scanning devices, e.g. flywheel synchronising whereby the synchronisation signal indirectly commands a frequency generator

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Power Engineering (AREA)
  • Inductance-Capacitance Distribution Constants And Capacitance-Resistance Oscillators (AREA)
  • Circuit Arrangements For Discharge Lamps (AREA)

Abstract

996,336. Reactance valve circuits; automatic phase control systems. TELEFUNKEN PATENTVERWERTUNGS G.m.b.H. March 22, 1962 [March 22, 1961], No. 11004/62 Headings H3A and H3R. An oscillator comprises the first two grids and cathode of a tube and from across an anode output resistor 20 a voltage is fed back through a capacitor 21 to one side of the tuned circuit 2, 22 to produce a phase quadrature component of feedback to the first grid of magnitude determined by a voltage UR applied to another grid, controlling the oscillator frequency. The circuit further ensures that increase of feedback increases the damping of the oscillator and therefore the control sensitivity. The input UR may be derived from a phase discriminator fed with incoming sync and television receiver line flyback pulses so that the frequency and phase of the line scan sawtooth waves produced by a triode 9 from the oscillations may be stabilized.
GB1100462A 1961-03-22 1962-03-22 Improvements relating to frequency controlled circuit arrangements for the generation of oscillations Expired GB996336A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DET19837A DE1206950B (en) 1961-03-22 1961-03-22 Circuit arrangement for the generation of sinusoidal vibrations for television receivers working with saw tooth generators

Publications (1)

Publication Number Publication Date
GB996336A true GB996336A (en) 1965-06-23

Family

ID=7549465

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1100462A Expired GB996336A (en) 1961-03-22 1962-03-22 Improvements relating to frequency controlled circuit arrangements for the generation of oscillations

Country Status (2)

Country Link
DE (1) DE1206950B (en)
GB (1) GB996336A (en)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2378245A (en) * 1942-03-17 1945-06-12 Radio Patents Corp Variable frequency oscillator
BE517107A (en) * 1951-06-27
US2790147A (en) * 1953-10-23 1957-04-23 Vitro Corp Reactance tube circuitry

Also Published As

Publication number Publication date
DE1206950B (en) 1965-12-16

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