FR2208238B1 - - Google Patents

Info

Publication number
FR2208238B1
FR2208238B1 FR7342055A FR7342055A FR2208238B1 FR 2208238 B1 FR2208238 B1 FR 2208238B1 FR 7342055 A FR7342055 A FR 7342055A FR 7342055 A FR7342055 A FR 7342055A FR 2208238 B1 FR2208238 B1 FR 2208238B1
Authority
FR
France
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.)
Expired
Application number
FR7342055A
Other versions
FR2208238A1 (fr
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.)
Sony Corp
Original Assignee
Sony Corp
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 Sony Corp filed Critical Sony Corp
Publication of FR2208238A1 publication Critical patent/FR2208238A1/fr
Application granted granted Critical
Publication of FR2208238B1 publication Critical patent/FR2208238B1/fr
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
    • H03J7/00—Automatic frequency control; Automatic scanning over a band of frequencies
    • H03J7/02—Automatic frequency control
    • H03J7/04—Automatic frequency control where the frequency control is accomplished by varying the electrical characteristics of a non-mechanically adjustable element or where the nature of the frequency controlling element is not significant
    • H03J7/08—Automatic frequency control where the frequency control is accomplished by varying the electrical characteristics of a non-mechanically adjustable element or where the nature of the frequency controlling element is not significant using varactors, i.e. voltage variable reactive diodes
    • 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
    • H03B5/1203—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 being a single transistor
    • 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
    • H03B5/124—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 the means comprising a voltage dependent capacitance
    • 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
    • H03B5/1293—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 having means for achieving a desired tuning characteristic, e.g. linearising the frequency characteristic across the tuning voltage range
    • 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
    • H03B5/1296—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 feedback circuit comprising a transformer
    • 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
    • H03B2200/00—Indexing scheme relating to details of oscillators covered by H03B
    • H03B2200/0002—Types of oscillators
    • H03B2200/001—Hartley oscillator
FR7342055A 1972-11-25 1973-11-26 Expired FR2208238B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1972135637U JPS5313304Y2 (fr) 1972-11-25 1972-11-25

Publications (2)

Publication Number Publication Date
FR2208238A1 FR2208238A1 (fr) 1974-06-21
FR2208238B1 true FR2208238B1 (fr) 1978-01-06

Family

ID=15156454

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7342055A Expired FR2208238B1 (fr) 1972-11-25 1973-11-26

Country Status (7)

Country Link
US (1) US3852686A (fr)
JP (1) JPS5313304Y2 (fr)
CA (1) CA996194A (fr)
DE (1) DE2358695C2 (fr)
FR (1) FR2208238B1 (fr)
GB (1) GB1424467A (fr)
NL (1) NL178112C (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4601061A (en) * 1984-07-02 1986-07-15 Motorola Inc. Automatic frequency control circuit having an equalized closed loop frequency response
JPH06188729A (ja) * 1992-12-16 1994-07-08 Murata Mfg Co Ltd ノイズ除去回路および電圧制御形発振回路
JP3330040B2 (ja) * 1996-12-11 2002-09-30 アルプス電気株式会社 発振回路
DE19652146B4 (de) * 1996-12-14 2006-06-29 Sennheiser Electronic Gmbh & Co. Kg Rauscharme Oszillatorschaltung

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1171032B (de) * 1961-11-13 1964-05-27 Telefunken Patent Anordnung zur elektronischen Abstimmung und zur automatischen Scharfabstimmung
DE1277954C2 (de) * 1962-02-03 1973-02-22 Standard Elek K Lorenz Ag Schaltungsanordnung zur elektronischen Abstimmung mehrerer Schwingungskreise im Gleich- oder Parallellauf
US3332035A (en) * 1966-07-20 1967-07-18 Alfred Electronics Oscillator circuit with variable capacitor
US3469214A (en) * 1966-08-26 1969-09-23 Matsushita Electric Ind Co Ltd Reactance transistor circuit configuration
DE1296226C2 (de) * 1967-12-09 1978-03-16 Philips" Patentverwaltung GmbH, 2000 Hamburg Abstimm-schaltungsanordnung mit einer schaltdiode
US3619803A (en) * 1970-03-16 1971-11-09 Gte Sylvania Inc Temperature and voltage compensation for transistorized vco control circuit
US3626311A (en) * 1970-07-30 1971-12-07 Motorola Inc Phase lock loop demodulator providing noise suppression
DE2126136C3 (de) * 1971-05-26 1982-07-29 Blaupunkt-Werke Gmbh, 3200 Hildesheim Regelbare HF-Eingangsstufe mit einem PIN-Dioden-Dämpfungsglied

Also Published As

Publication number Publication date
FR2208238A1 (fr) 1974-06-21
GB1424467A (en) 1976-02-11
NL178112C (nl) 1986-01-16
NL178112B (nl) 1985-08-16
JPS4990012U (fr) 1974-08-05
JPS5313304Y2 (fr) 1978-04-11
CA996194A (en) 1976-08-31
US3852686A (en) 1974-12-03
DE2358695C2 (de) 1984-09-27
NL7316173A (fr) 1974-05-28
DE2358695A1 (de) 1974-05-30

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