JPS5585111A - Oscillation circuit - Google Patents

Oscillation circuit

Info

Publication number
JPS5585111A
JPS5585111A JP15881278A JP15881278A JPS5585111A JP S5585111 A JPS5585111 A JP S5585111A JP 15881278 A JP15881278 A JP 15881278A JP 15881278 A JP15881278 A JP 15881278A JP S5585111 A JPS5585111 A JP S5585111A
Authority
JP
Japan
Prior art keywords
amplifier
circuit
oscillation
positive
potential
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
JP15881278A
Other languages
Japanese (ja)
Inventor
Hiromi Kusakabe
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP15881278A priority Critical patent/JPS5585111A/en
Publication of JPS5585111A publication Critical patent/JPS5585111A/en
Pending 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
    • H03B5/1203—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

Landscapes

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

Abstract

PURPOSE:To establish the oscillation circuit to enable to obtain two multiple output with ease of circuit integration, consisting of three differential amplifiers and one LC resonant circuit. CONSTITUTION:The differential pair transistors TRQ2, Q5, Q1 and Q6, Q3 and Q4 constitute the differential amplifiers A1-A3 respectively. The amplifier A1 is oscillated in the frequency of resonant circuit PR. The amount of negative feedback of the amplifier A2 in opposite phase coupling with the amplifier A1 is set smaller than the positive amount of feedback of the amplifier A1, and the amplitude of oscillation is stable at comparatively smaller level. The amplifier A3 is coupled in opposite phase to the amplifier A2, and the relation of greatness of the gain of the amplifiers A2, A3 depending on the positive or negative direction of potential at the point (a) can be inversed. Since the potential at the point (a) is in variation toward positive or negative direction in response to the oscillation frequency due to the resonance circuit PR, the double frequency output can be obtained across the load resistor RL.
JP15881278A 1978-12-22 1978-12-22 Oscillation circuit Pending JPS5585111A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15881278A JPS5585111A (en) 1978-12-22 1978-12-22 Oscillation circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15881278A JPS5585111A (en) 1978-12-22 1978-12-22 Oscillation circuit

Publications (1)

Publication Number Publication Date
JPS5585111A true JPS5585111A (en) 1980-06-26

Family

ID=15679892

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15881278A Pending JPS5585111A (en) 1978-12-22 1978-12-22 Oscillation circuit

Country Status (1)

Country Link
JP (1) JPS5585111A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04253409A (en) * 1991-01-29 1992-09-09 Nec Corp Frequency multiplier/mixer circuit
JPH05121950A (en) * 1991-10-25 1993-05-18 Nec Corp Frequency mixer circuit
JPH05167353A (en) * 1991-12-12 1993-07-02 Nec Corp Frequency mixer circuit

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04253409A (en) * 1991-01-29 1992-09-09 Nec Corp Frequency multiplier/mixer circuit
JPH05121950A (en) * 1991-10-25 1993-05-18 Nec Corp Frequency mixer circuit
JPH05167353A (en) * 1991-12-12 1993-07-02 Nec Corp Frequency mixer circuit

Similar Documents

Publication Publication Date Title
JPS57133705A (en) Variable frequency oscillating circuit
HK48284A (en) Amplifier arrangement
JPS5585111A (en) Oscillation circuit
JPS54136261A (en) Current inversion circuit
US4646033A (en) Crystal controlled oscillator
GB1172506A (en) Improvements in operational amplifier circuits
ATE108960T1 (en) VOLTAGE CONTROLLED OSCILLATOR.
JPS55158705A (en) Low-noise oscillator
JPS54148462A (en) Amplitude limiting oscillator circuit
JPS54126445A (en) Notch filter
JPS5640309A (en) Extra-high frequency transistor amplifying unit
JPH03139005A (en) Oscillation circuit
JPS5478956A (en) Amplified output circuit
JPS5550714A (en) Oscillation and amplifier unit
JPS55100711A (en) Transistor differential amplifier circuit
JPS568906A (en) Oscillator with change-over capacity
JPS555559A (en) Integrated circuit
JPS55149505A (en) Diapason oscillator stable in amplitude
JPS5612107A (en) Oscillator
JPH0758545A (en) Variable frequency oscillator
JPS56726A (en) Intermediate frequency amplifier of am/fm
Sato Experiments of Transistor RC Oscillator
GB905435A (en) Improvements in or relating to transistor beat-frequency oscillators
JPH0446710U (en)
JPS55147016A (en) Amplitude limiting circuit