JPS5260052A - Phase control circuit featuring self-run frequency setting medium - Google Patents

Phase control circuit featuring self-run frequency setting medium

Info

Publication number
JPS5260052A
JPS5260052A JP50136463A JP13646375A JPS5260052A JP S5260052 A JPS5260052 A JP S5260052A JP 50136463 A JP50136463 A JP 50136463A JP 13646375 A JP13646375 A JP 13646375A JP S5260052 A JPS5260052 A JP S5260052A
Authority
JP
Japan
Prior art keywords
control circuit
phase control
run frequency
frequency setting
setting medium
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.)
Pending
Application number
JP50136463A
Other languages
Japanese (ja)
Inventor
Yoshihiro Hamura
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.)
Fujitsu Ltd
Original Assignee
Fujitsu 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 Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to JP50136463A priority Critical patent/JPS5260052A/en
Publication of JPS5260052A publication Critical patent/JPS5260052A/en
Pending legal-status Critical Current

Links

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
    • H03L7/14—Details of the phase-locked loop for assuring constant frequency when supply or correction voltages fail or are interrupted
    • H03L7/143—Details of the phase-locked loop for assuring constant frequency when supply or correction voltages fail or are interrupted by switching the reference signal of the phase-locked 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

Landscapes

  • Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)

Abstract

PURPOSE:The medium which corrects sefl-run frequency and is used for voltage control oscillator is equipped to phase control circuit. Thus, self-run frequency can be kept properly at all times.
JP50136463A 1975-11-12 1975-11-12 Phase control circuit featuring self-run frequency setting medium Pending JPS5260052A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP50136463A JPS5260052A (en) 1975-11-12 1975-11-12 Phase control circuit featuring self-run frequency setting medium

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP50136463A JPS5260052A (en) 1975-11-12 1975-11-12 Phase control circuit featuring self-run frequency setting medium

Publications (1)

Publication Number Publication Date
JPS5260052A true JPS5260052A (en) 1977-05-18

Family

ID=15175690

Family Applications (1)

Application Number Title Priority Date Filing Date
JP50136463A Pending JPS5260052A (en) 1975-11-12 1975-11-12 Phase control circuit featuring self-run frequency setting medium

Country Status (1)

Country Link
JP (1) JPS5260052A (en)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5498166A (en) * 1978-01-20 1979-08-02 Nec Corp Phase synchronizing oscillator
JPS5676636A (en) * 1979-11-29 1981-06-24 Sony Corp Variable oscillation circuit
JPS5714267A (en) * 1980-06-30 1982-01-25 Sony Corp Detector for frequency difference
JPS5894209A (en) * 1981-11-30 1983-06-04 Victor Co Of Japan Ltd Frequency discriminator
JPS5928209A (en) * 1982-08-05 1984-02-14 Seiko Epson Corp Vfo circuit for floppy disk
JPS59139729A (en) * 1984-01-20 1984-08-10 Hitachi Ltd Phase locking circuit
JPS6247240U (en) * 1985-09-11 1987-03-23
EP0320748A2 (en) * 1987-12-18 1989-06-21 BULL HN INFORMATION SYSTEMS ITALIA S.p.A. Self adjusting phase lock circuit
JPH0276418A (en) * 1988-09-13 1990-03-15 Canon Inc Pll circuit
EP0373686A1 (en) * 1988-11-21 1990-06-20 Stichting Voor De Technische Wetenschappen Regenerating device having a phase-locked loop with loop gain compensation and offset compensation
USRE34317E (en) * 1982-08-05 1993-07-20 Seiko Epson Corporation Variable frequency oscillator
US7323942B2 (en) 2005-01-06 2008-01-29 Matsushita Electric Industrial Co., Ltd. Dual loop PLL, and multiplication clock generator using dual loop PLL

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5498166A (en) * 1978-01-20 1979-08-02 Nec Corp Phase synchronizing oscillator
JPS5676636A (en) * 1979-11-29 1981-06-24 Sony Corp Variable oscillation circuit
JPH0249060B2 (en) * 1979-11-29 1990-10-29 Sony Corp
JPH0253973B2 (en) * 1980-06-30 1990-11-20 Sony Corp
JPS5714267A (en) * 1980-06-30 1982-01-25 Sony Corp Detector for frequency difference
JPS5894209A (en) * 1981-11-30 1983-06-04 Victor Co Of Japan Ltd Frequency discriminator
JPS5928209A (en) * 1982-08-05 1984-02-14 Seiko Epson Corp Vfo circuit for floppy disk
USRE34317E (en) * 1982-08-05 1993-07-20 Seiko Epson Corporation Variable frequency oscillator
JPS59139729A (en) * 1984-01-20 1984-08-10 Hitachi Ltd Phase locking circuit
JPS6247240U (en) * 1985-09-11 1987-03-23
EP0320748A2 (en) * 1987-12-18 1989-06-21 BULL HN INFORMATION SYSTEMS ITALIA S.p.A. Self adjusting phase lock circuit
US4918404A (en) * 1987-12-18 1990-04-17 Bull Hn Information Systems Italia S.P.A. Phase locked loop with self-adjusting circuit for oscillator working point
JPH0276418A (en) * 1988-09-13 1990-03-15 Canon Inc Pll circuit
US4972163A (en) * 1988-11-21 1990-11-20 Stichting Voor De Technische Wetenschappen Regenerating device having a phase-locked loop with loop gain compensation and offset compensation
EP0373686A1 (en) * 1988-11-21 1990-06-20 Stichting Voor De Technische Wetenschappen Regenerating device having a phase-locked loop with loop gain compensation and offset compensation
US7323942B2 (en) 2005-01-06 2008-01-29 Matsushita Electric Industrial Co., Ltd. Dual loop PLL, and multiplication clock generator using dual loop PLL

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