FR2386933A1 - Oscillateur regle - Google Patents

Oscillateur regle

Info

Publication number
FR2386933A1
FR2386933A1 FR7810253A FR7810253A FR2386933A1 FR 2386933 A1 FR2386933 A1 FR 2386933A1 FR 7810253 A FR7810253 A FR 7810253A FR 7810253 A FR7810253 A FR 7810253A FR 2386933 A1 FR2386933 A1 FR 2386933A1
Authority
FR
France
Prior art keywords
output terminal
oscillating
amplifier
signals
produce
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
FR7810253A
Other languages
English (en)
Other versions
FR2386933B1 (fr
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.)
RCA Corp
Original Assignee
RCA 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
Application filed by RCA Corp filed Critical RCA Corp
Publication of FR2386933A1 publication Critical patent/FR2386933A1/fr
Application granted granted Critical
Publication of FR2386933B1 publication Critical patent/FR2386933B1/fr
Granted legal-status Critical Current

Links

Classifications

    • 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
    • H03B5/30—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element being electromechanical resonator
    • H03B5/32—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element being electromechanical resonator being a piezoelectric resonator
    • H03B5/36—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element being electromechanical resonator being a piezoelectric resonator active element in amplifier being semiconductor device
    • H03B5/366—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element being electromechanical resonator being a piezoelectric resonator active element in amplifier being semiconductor device and comprising means for varying the frequency by a variable voltage or current
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03L—AUTOMATIC CONTROL, STARTING, SYNCHRONISATION OR STABILISATION OF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES
    • H03L7/00—Automatic control of frequency or phase; Synchronisation
    • H03L7/06—Automatic control of frequency or phase; Synchronisation using a reference signal applied to a frequency- or phase-locked loop
    • H03L7/08—Details of the phase-locked loop
    • H03L7/099—Details of the phase-locked loop concerning mainly the controlled oscillator of the loop
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N9/00—Details of colour television systems
    • H04N9/44—Colour synchronisation
    • H04N9/455—Generation of colour burst signals; Insertion of colour burst signals in colour picture signals or separation of colour burst signals from colour picture signals

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Inductance-Capacitance Distribution Constants And Capacitance-Resistance Oscillators (AREA)
  • Networks Using Active Elements (AREA)
  • Oscillators With Electromechanical Resonators (AREA)

Abstract

L'invention concerne un oscillateur réglé avec un amplificateur comportant un dispositif actif à une première borne de sortie duquel est associée une capacité parasite, un réseau de filtrage agencé dans une boucle de contre-réaction de l'amplificateur pour produire une contre-réaction régénératrice suffisamment grande pour produire un signal oscillant à la première borne de sortie du dispositif actif; une source de signaux de commande produisant des signaux à une seconde borne de sortie à laquelle est associée une capacité parasite. Selon l'invention un réseau de charge commune des signaux oscillants et de commande est couplé au réseau de filtrage 78, et il comprend un moyen amplificateur 260 ayant une faible impédance d'entrée par rapport à celle présentée par les capacités parasites aux signaux oscillants et de commande. L'invention s'applique notamment aux téléviseurs couleurs.
FR7810253A 1977-04-07 1978-04-06 Oscillateur regle Granted FR2386933A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/785,591 US4095255A (en) 1977-04-07 1977-04-07 Controlled oscillator with increased immunity to parasitic capacitance

Publications (2)

Publication Number Publication Date
FR2386933A1 true FR2386933A1 (fr) 1978-11-03
FR2386933B1 FR2386933B1 (fr) 1983-05-27

Family

ID=25135980

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7810253A Granted FR2386933A1 (fr) 1977-04-07 1978-04-06 Oscillateur regle

Country Status (7)

Country Link
US (1) US4095255A (fr)
JP (1) JPS53126248A (fr)
DE (1) DE2815113A1 (fr)
FI (1) FI780990A7 (fr)
FR (1) FR2386933A1 (fr)
GB (1) GB1599536A (fr)
IT (1) IT7821738A0 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4249199A (en) * 1979-10-09 1981-02-03 Rca Corporation Phase compensated controlled oscillator
US4485353A (en) * 1982-05-28 1984-11-27 Rca Corporation PLL Oscillator synchronizing system with matrix for phase correction
JP2908251B2 (ja) * 1994-08-30 1999-06-21 山形日本電気株式会社 電圧制御水晶発振回路
FR2758919B1 (fr) * 1997-01-24 1999-04-16 Sgs Thomson Microelectronics Circuit de modulation de frequence d'un oscillateur a quartz
CN110557118B (zh) * 2018-05-31 2022-12-27 华为技术有限公司 一种锁相装置及锁相方法

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3763439A (en) * 1972-08-21 1973-10-02 Gen Electric Voltage controlled oscillator for integrated circuit fabrication

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3763439A (en) * 1972-08-21 1973-10-02 Gen Electric Voltage controlled oscillator for integrated circuit fabrication

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
EXBK/73 *

Also Published As

Publication number Publication date
US4095255A (en) 1978-06-13
FI780990A7 (fi) 1978-10-08
DE2815113A1 (de) 1978-10-12
JPS53126248A (en) 1978-11-04
GB1599536A (en) 1981-10-07
FR2386933B1 (fr) 1983-05-27
IT7821738A0 (it) 1978-03-29

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Legal Events

Date Code Title Description
ST Notification of lapse