[go: up one dir, main page]

JPS55118208A - Crystal oscillator - Google Patents

Crystal oscillator

Info

Publication number
JPS55118208A
JPS55118208A JP2527279A JP2527279A JPS55118208A JP S55118208 A JPS55118208 A JP S55118208A JP 2527279 A JP2527279 A JP 2527279A JP 2527279 A JP2527279 A JP 2527279A JP S55118208 A JPS55118208 A JP S55118208A
Authority
JP
Japan
Prior art keywords
crystal oscillator
transistor
output
emitter
oscillation
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
JP2527279A
Other languages
Japanese (ja)
Inventor
Akira Hamada
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 JP2527279A priority Critical patent/JPS55118208A/en
Publication of JPS55118208A publication Critical patent/JPS55118208A/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
    • H03B5/30—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element being electromechanical resonator
    • H03B5/32—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element being electromechanical resonator being a piezoelectric resonator
    • H03B5/36—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element being electromechanical resonator being a piezoelectric resonator active element in amplifier being semiconductor device
    • H03B5/362—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element being electromechanical resonator being a piezoelectric resonator active element in amplifier being semiconductor device the amplifier being a single transistor

Landscapes

  • Oscillators With Electromechanical Resonators (AREA)

Abstract

PURPOSE:To enable strong stability against load variation, by the positive feedback of the emitter output of the common collector circuit to the base via the boosting transformer and inserting the crystal oscillator to the feedback circuit. CONSTITUTION:The emitter output voltage of the transistor 1 is multiplied by winding ratio with the boosting transformer 3 to excite the crystal oscillator 2. The crystal oscillator 2 acts as the series resonator to form the positive feedback loop to the base of the transistor 1 and oscillation is continued with the series resonance frequency of the crystal oscillator 2. The frequency fine tuning circuit 4 is to finely tune the series resonance frequency and it is constituted with capacitors or inductors. Although the oscillation output is picked up from the emitter of the transistor 1, since the output impedance is low, stable oscillation output can be obtained without being affected with greater variation of load.
JP2527279A 1979-03-05 1979-03-05 Crystal oscillator Pending JPS55118208A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2527279A JPS55118208A (en) 1979-03-05 1979-03-05 Crystal oscillator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2527279A JPS55118208A (en) 1979-03-05 1979-03-05 Crystal oscillator

Publications (1)

Publication Number Publication Date
JPS55118208A true JPS55118208A (en) 1980-09-11

Family

ID=12161386

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2527279A Pending JPS55118208A (en) 1979-03-05 1979-03-05 Crystal oscillator

Country Status (1)

Country Link
JP (1) JPS55118208A (en)

Similar Documents

Publication Publication Date Title
JPS55118208A (en) Crystal oscillator
US3775698A (en) A circuit for generating a high power rf signal having low am and fm noise components
JPS55158705A (en) Low-noise oscillator
JPS5676639A (en) Synthesizer receiver
RU1815792C (en) Crystal oscillator
SU1524155A1 (en) Frequency multiplier
JPS55147808A (en) Overtone oscillator
JPS5673906A (en) Microwave oscillator
SU1706001A1 (en) Crystal oscillator
JPS5534549A (en) Voltage control oscillator
JPS57192104A (en) Voltage controlled quartz oscillator
SU1401549A1 (en) Quartz oscillator
JPS55149509A (en) Uhf high frequency amplifying circuit
JPS54102952A (en) Local oscillator circuit of uhf tuner
JPS54121645A (en) Piezo-oscillator
SU1691924A1 (en) Crystal oscillator
GB867778A (en) Improvements relating to blocking oscillators
GB817319A (en) Stabilised electric transistor oscillators
SU1109854A1 (en) Frequency-controlled crystal oscillator
JPS55112006A (en) Oscillator
GB1031399A (en) Frequency converter
SU657579A1 (en) Sweeping frequency generator
JPS55147836A (en) Microwave oscillator
SU420080A1 (en) Quartz oscillator
SU1224948A1 (en) Crystal oscillator