FR2386933A1 - Oscillateur regle - Google Patents
Oscillateur regleInfo
- 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
Links
- 230000001105 regulatory effect Effects 0.000 title 1
- 230000003071 parasitic effect Effects 0.000 abstract 3
- 238000001914 filtration Methods 0.000 abstract 2
- 230000001172 regenerating effect Effects 0.000 abstract 1
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.
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) | FI780990A (fr) |
FR (1) | FR2386933A1 (fr) |
GB (1) | GB1599536A (fr) |
IT (1) | IT7821738A0 (fr) |
Families Citing this family (5)
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)
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 |
-
1977
- 1977-04-07 US US05/785,591 patent/US4095255A/en not_active Expired - Lifetime
-
1978
- 1978-03-29 IT IT7821738A patent/IT7821738A0/it unknown
- 1978-03-31 FI FI780990A patent/FI780990A/fi not_active Application Discontinuation
- 1978-04-05 GB GB13370/78A patent/GB1599536A/en not_active Expired
- 1978-04-06 JP JP4077478A patent/JPS53126248A/ja active Pending
- 1978-04-06 FR FR7810253A patent/FR2386933A1/fr active Granted
- 1978-04-07 DE DE19782815113 patent/DE2815113A1/de not_active Withdrawn
Patent Citations (1)
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)
Title |
---|
EXBK/73 * |
Also Published As
Publication number | Publication date |
---|---|
JPS53126248A (en) | 1978-11-04 |
US4095255A (en) | 1978-06-13 |
FI780990A (fi) | 1978-10-08 |
FR2386933B1 (fr) | 1983-05-27 |
DE2815113A1 (de) | 1978-10-12 |
IT7821738A0 (it) | 1978-03-29 |
GB1599536A (en) | 1981-10-07 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |