JPS5255361A - Variable frequency oscillator - Google Patents

Variable frequency oscillator

Info

Publication number
JPS5255361A
JPS5255361A JP50130709A JP13070975A JPS5255361A JP S5255361 A JPS5255361 A JP S5255361A JP 50130709 A JP50130709 A JP 50130709A JP 13070975 A JP13070975 A JP 13070975A JP S5255361 A JPS5255361 A JP S5255361A
Authority
JP
Japan
Prior art keywords
variable frequency
frequency oscillator
amplitude
control
frequency
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
JP50130709A
Other languages
English (en)
Other versions
JPS5728218B2 (ja
Inventor
Yasuaki Watabe
Yukio Okabe
Mitsuru Hayakawa
Yuichi Ikemura
Yasuhiro Fujita
Onori Murakami
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.)
Victor Company of Japan Ltd
Nippon Victor KK
Panasonic Holdings Corp
Original Assignee
Victor Company of Japan Ltd
Nippon Victor KK
Matsushita Electric Industrial 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 Victor Company of Japan Ltd, Nippon Victor KK, Matsushita Electric Industrial Co Ltd filed Critical Victor Company of Japan Ltd
Priority to JP50130709A priority Critical patent/JPS5255361A/ja
Priority to GB44486/76A priority patent/GB1568982A/en
Priority to AU19047/76A priority patent/AU494218B2/en
Priority to US05/736,777 priority patent/US4055817A/en
Priority to CA264,742A priority patent/CA1061871A/en
Priority to DE2649745A priority patent/DE2649745C2/de
Publication of JPS5255361A publication Critical patent/JPS5255361A/ja
Publication of JPS5728218B2 publication Critical patent/JPS5728218B2/ja
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
    • H03B5/02—Details
    • 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
    • H03B5/08—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance
    • H03B5/12—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance active element in amplifier being semiconductor device
    • H03B5/1206—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance active element in amplifier being semiconductor device using multiple transistors for amplification
    • H03B5/1209—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance active element in amplifier being semiconductor device using multiple transistors for amplification the amplifier having two current paths operating in a differential manner and a current source or degeneration circuit in common to both paths, e.g. a long-tailed pair.
    • 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
    • H03B5/08—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance
    • H03B5/12—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance active element in amplifier being semiconductor device
    • H03B5/1231—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance active element in amplifier being semiconductor device the amplifier comprising one or more bipolar transistors
    • 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
    • H03B5/08—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance
    • H03B5/12—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance active element in amplifier being semiconductor device
    • H03B5/1237—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance active element in amplifier being semiconductor device comprising means for varying the frequency of the generator

Landscapes

  • Inductance-Capacitance Distribution Constants And Capacitance-Resistance Oscillators (AREA)
  • Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
  • Networks Using Active Elements (AREA)
JP50130709A 1975-10-30 1975-10-30 Variable frequency oscillator Granted JPS5255361A (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
JP50130709A JPS5255361A (en) 1975-10-30 1975-10-30 Variable frequency oscillator
GB44486/76A GB1568982A (en) 1975-10-30 1976-10-26 Variable frequency oscillator
AU19047/76A AU494218B2 (en) 1975-10-30 1976-10-27 Variable frequency oscillator
US05/736,777 US4055817A (en) 1975-10-30 1976-10-29 Variable frequency oscillator
CA264,742A CA1061871A (en) 1975-10-30 1976-10-29 Variable frequency oscillator
DE2649745A DE2649745C2 (de) 1975-10-30 1976-10-29 Frequenzsteuerbarer Oszillator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP50130709A JPS5255361A (en) 1975-10-30 1975-10-30 Variable frequency oscillator

Publications (2)

Publication Number Publication Date
JPS5255361A true JPS5255361A (en) 1977-05-06
JPS5728218B2 JPS5728218B2 (ja) 1982-06-15

Family

ID=15040732

Family Applications (1)

Application Number Title Priority Date Filing Date
JP50130709A Granted JPS5255361A (en) 1975-10-30 1975-10-30 Variable frequency oscillator

Country Status (5)

Country Link
US (1) US4055817A (ja)
JP (1) JPS5255361A (ja)
CA (1) CA1061871A (ja)
DE (1) DE2649745C2 (ja)
GB (1) GB1568982A (ja)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5263649A (en) * 1975-11-19 1977-05-26 Rca Corp Controllable oscillator

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4243953A (en) * 1979-02-16 1981-01-06 Rca Corporation Voltage controlled oscillator presenting high impedance to parallel resonant tank circuit
US4286235A (en) * 1979-06-25 1981-08-25 Rca Corporation VFO having plural feedback loops
US4733200A (en) * 1986-10-14 1988-03-22 Motorola, Inc. Controlled feedback path voltage controlled oscillator
DE58909437D1 (de) * 1989-11-10 1995-10-19 Siemens Ag Integrierbare frequenzvariable Oszillatorschaltung.
EP0509124B1 (de) * 1991-04-19 1996-03-27 Siemens Aktiengesellschaft Oszillatorschaltung
US7211973B1 (en) 2005-01-07 2007-05-01 Marvell Asia Pte, Ltd. System and process for utilizing back electromotive force in disk drives
WO2013089163A1 (ja) * 2011-12-14 2013-06-20 日本電気株式会社 共振回路、分布型増幅器、及び発振器

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE469030A (ja) * 1941-07-11
FR2071349A5 (ja) * 1969-12-24 1971-09-17 Thomson Csf
US3691475A (en) * 1970-07-24 1972-09-12 Hitachi Ltd Voltage controlled oscillator
US3763439A (en) * 1972-08-21 1973-10-02 Gen Electric Voltage controlled oscillator for integrated circuit fabrication
US3806634A (en) * 1972-08-21 1974-04-23 Gen Electric Multiplex color television demodulator
US3973221A (en) * 1975-04-07 1976-08-03 Motorola, Inc. Voltage controlled crystal oscillator apparatus

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5263649A (en) * 1975-11-19 1977-05-26 Rca Corp Controllable oscillator
JPS5842644B2 (ja) * 1975-11-19 1983-09-21 ア−ルシ−エ− コ−ポレ−ション 制御可能な発振器

Also Published As

Publication number Publication date
GB1568982A (en) 1980-06-11
AU1904776A (en) 1978-05-04
DE2649745C2 (de) 1984-02-16
JPS5728218B2 (ja) 1982-06-15
CA1061871A (en) 1979-09-04
DE2649745A1 (de) 1977-05-12
US4055817A (en) 1977-10-25

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