FR2382796A1 - Oscillateur module en frequence, comportant une boucle d'asservissement de phase dont l'action sur la modulation est compensee - Google Patents
Oscillateur module en frequence, comportant une boucle d'asservissement de phase dont l'action sur la modulation est compenseeInfo
- Publication number
- FR2382796A1 FR2382796A1 FR7706165A FR7706165A FR2382796A1 FR 2382796 A1 FR2382796 A1 FR 2382796A1 FR 7706165 A FR7706165 A FR 7706165A FR 7706165 A FR7706165 A FR 7706165A FR 2382796 A1 FR2382796 A1 FR 2382796A1
- Authority
- FR
- France
- Prior art keywords
- phase comparator
- circuit
- filtering effect
- feedback loop
- oscillator
- 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.)
- Withdrawn
Links
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03C—MODULATION
- H03C3/00—Angle modulation
- H03C3/02—Details
- H03C3/09—Modifications of modulator for regulating the mean frequency
- H03C3/0908—Modifications of modulator for regulating the mean frequency using a phase locked loop
- H03C3/0966—Modifications of modulator for regulating the mean frequency using a phase locked loop modulating the reference clock
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03C—MODULATION
- H03C2200/00—Indexing scheme relating to details of modulators or modulation methods covered by H03C
- H03C2200/0037—Functional aspects of modulators
- H03C2200/005—Modulation sensitivity
- H03C2200/0054—Filtering of the input modulating signal for obtaining a constant sensitivity of frequency modulation
Landscapes
- Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
Abstract
Oscillateur modulé en fréquence par un signal BF appliqué à un sommateur 9 qui reçoit en outre le signal de sortie d'un comparateur de phase 4 faisant partie d'une boucle d'asservissement 1,3 - 4. Un circuit integrateur 13 ajoute un signal correcteur qui compense l'effet de l'asservissement sur la modulation de frequence. Application aux émetteurs multiplex en stéréophonie.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7706165A FR2382796A1 (fr) | 1977-03-03 | 1977-03-03 | Oscillateur module en frequence, comportant une boucle d'asservissement de phase dont l'action sur la modulation est compensee |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7706165A FR2382796A1 (fr) | 1977-03-03 | 1977-03-03 | Oscillateur module en frequence, comportant une boucle d'asservissement de phase dont l'action sur la modulation est compensee |
Publications (1)
Publication Number | Publication Date |
---|---|
FR2382796A1 true FR2382796A1 (fr) | 1978-09-29 |
Family
ID=9187482
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7706165A Withdrawn FR2382796A1 (fr) | 1977-03-03 | 1977-03-03 | Oscillateur module en frequence, comportant une boucle d'asservissement de phase dont l'action sur la modulation est compensee |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR2382796A1 (fr) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2454219A1 (fr) * | 1979-04-11 | 1980-11-07 | Siemens Ag | Modulateur de frequence |
-
1977
- 1977-03-03 FR FR7706165A patent/FR2382796A1/fr not_active Withdrawn
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2454219A1 (fr) * | 1979-04-11 | 1980-11-07 | Siemens Ag | Modulateur de frequence |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |