JPS56149104A - Oscillator - Google Patents

Oscillator

Info

Publication number
JPS56149104A
JPS56149104A JP5246580A JP5246580A JPS56149104A JP S56149104 A JPS56149104 A JP S56149104A JP 5246580 A JP5246580 A JP 5246580A JP 5246580 A JP5246580 A JP 5246580A JP S56149104 A JPS56149104 A JP S56149104A
Authority
JP
Japan
Prior art keywords
circuit
oscillator
tuning
collector
stability
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
JP5246580A
Other languages
Japanese (ja)
Other versions
JPS6157728B2 (en
Inventor
Masami Miura
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.)
NEC Corp
Original Assignee
NEC Corp
Nippon Electric 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 NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP5246580A priority Critical patent/JPS56149104A/en
Publication of JPS56149104A publication Critical patent/JPS56149104A/en
Publication of JPS6157728B2 publication Critical patent/JPS6157728B2/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
    • H03B5/08—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
    • H03B5/1206—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
    • H03B5/1212—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 comprising a pair of transistors, wherein an output terminal of each being connected to an input terminal of the other, e.g. a cross coupled pair
    • H03B5/1215—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 comprising a pair of transistors, wherein an output terminal of each being connected to an input terminal of the other, e.g. a cross coupled pair the current source or degeneration circuit being in common to both transistors of the pair, e.g. a cross-coupled 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
    • H03B5/1206—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
    • H03B5/1221—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 comprising multiple amplification stages connected in cascade
    • 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
    • H03B5/1243—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 the means comprising voltage variable capacitance diodes

Landscapes

  • Inductance-Capacitance Distribution Constants And Capacitance-Resistance Oscillators (AREA)

Abstract

PURPOSE:To obtain an oscillator suitably applicable to the oscillating circuit of a local oscillator employing the electronic tuning system by improving the stability of the operation of a diffential amplifier via a level shifing circit of an emitter and by sharing one of two tuning-circuit fitting terminals with another purpose. CONSTITUTION:The differential amplifier composed of transistor TRs 1 and 2 constitutes a positive feedback loop. Then, loops are formed from the collector of TR1 to the base of TR2 via feedback resistance 6 and the level shifting circuit of the emitter follower consisting of TR14 and resistance 16, and similarly from the collector of TR2 to the base of TR1 via feedback resistance 7 and the level shifting circuit of the emitter follower, improving the stability of the operation of the differential amplifier. Further, one of two tuning-circuit fitting terminals is shared with another purpose to make the titled oscillator suitable for the oscillating circuit of a local oscillator employing the electronic tuning system.
JP5246580A 1980-04-21 1980-04-21 Oscillator Granted JPS56149104A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5246580A JPS56149104A (en) 1980-04-21 1980-04-21 Oscillator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5246580A JPS56149104A (en) 1980-04-21 1980-04-21 Oscillator

Publications (2)

Publication Number Publication Date
JPS56149104A true JPS56149104A (en) 1981-11-18
JPS6157728B2 JPS6157728B2 (en) 1986-12-08

Family

ID=12915460

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5246580A Granted JPS56149104A (en) 1980-04-21 1980-04-21 Oscillator

Country Status (1)

Country Link
JP (1) JPS56149104A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0141933A2 (en) * 1983-09-15 1985-05-22 Siemens Aktiengesellschaft Integrated circuit oscillator
WO2004015852A2 (en) * 2002-08-08 2004-02-19 Koninklijke Philips Electronics N.V. Voltage controlled oscillator

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5274263A (en) * 1975-12-17 1977-06-22 Sony Corp Oscillation circuit

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5274263A (en) * 1975-12-17 1977-06-22 Sony Corp Oscillation circuit

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0141933A2 (en) * 1983-09-15 1985-05-22 Siemens Aktiengesellschaft Integrated circuit oscillator
WO2004015852A2 (en) * 2002-08-08 2004-02-19 Koninklijke Philips Electronics N.V. Voltage controlled oscillator
WO2004015852A3 (en) * 2002-08-08 2004-05-21 Koninkl Philips Electronics Nv Voltage controlled oscillator

Also Published As

Publication number Publication date
JPS6157728B2 (en) 1986-12-08

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