WO2000014881A1 - Procede de commande de la frequence libre d'un oscillateur commande en tension - Google Patents

Procede de commande de la frequence libre d'un oscillateur commande en tension Download PDF

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Publication number
WO2000014881A1
WO2000014881A1 PCT/JP1999/004697 JP9904697W WO0014881A1 WO 2000014881 A1 WO2000014881 A1 WO 2000014881A1 JP 9904697 W JP9904697 W JP 9904697W WO 0014881 A1 WO0014881 A1 WO 0014881A1
Authority
WO
WIPO (PCT)
Prior art keywords
frequency
voltage
free
controlled oscillator
adjustment
Prior art date
Application number
PCT/JP1999/004697
Other languages
English (en)
Japanese (ja)
Inventor
Hiroshi Miyagi
Original Assignee
T.I.F. Co., Ltd.
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 T.I.F. Co., Ltd. filed Critical T.I.F. Co., Ltd.
Publication of WO2000014881A1 publication Critical patent/WO2000014881A1/fr

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Classifications

    • 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
    • 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
    • H03L7/10—Details of the phase-locked loop for assuring initial synchronisation or for broadening the capture range
    • H03L7/113—Details of the phase-locked loop for assuring initial synchronisation or for broadening the capture range using frequency discriminator

Abstract

La présente invention concerne un procédé permettant de commander facilement la fréquence libre d'un oscillateur commandé en tension. Un circuit monostable (24) produit un signal à largeur d'impulsion précise en utilisant le signal produit par un oscillateur de référence dans un synthétiseur de fréquence (20). Un compteur de fréquence (28) fonctionne en synchronisme avec un signal fournit par un oscillateur commandé en tension (VCO) (10) dans un intervalle correspondant à la largeur d'impulsion, un circuit de verrouillage (30) tenant un compte correspondant à la fréquence d'oscillation du VCO (10). Lorsque ce compte ne se situe plus dans une plage prédéterminée, une unité centrale (34) fait varier la tension de commande Vs appliquée par le VCO (10), de sorte que la fréquence libre du VCO (10) tombe dans la plage prédéterminée.
PCT/JP1999/004697 1998-09-04 1999-08-31 Procede de commande de la frequence libre d'un oscillateur commande en tension WO2000014881A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP10267305A JP2000083003A (ja) 1998-09-04 1998-09-04 フリーラン周波数調整方式
JP10/267305 1998-09-04

Publications (1)

Publication Number Publication Date
WO2000014881A1 true WO2000014881A1 (fr) 2000-03-16

Family

ID=17442992

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP1999/004697 WO2000014881A1 (fr) 1998-09-04 1999-08-31 Procede de commande de la frequence libre d'un oscillateur commande en tension

Country Status (2)

Country Link
JP (1) JP2000083003A (fr)
WO (1) WO2000014881A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4355350B2 (ja) 2007-11-16 2009-10-28 日本電波工業株式会社 発振周波数制御回路
JP4625494B2 (ja) 2007-12-25 2011-02-02 日本電波工業株式会社 発振周波数制御回路

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03274917A (ja) * 1990-03-26 1991-12-05 Teac Corp 可変調波数発振器
JPH0795109A (ja) * 1993-09-20 1995-04-07 Sanyo Electric Co Ltd マルチプレクス回路

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03274917A (ja) * 1990-03-26 1991-12-05 Teac Corp 可変調波数発振器
JPH0795109A (ja) * 1993-09-20 1995-04-07 Sanyo Electric Co Ltd マルチプレクス回路

Also Published As

Publication number Publication date
JP2000083003A (ja) 2000-03-21

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