JPS55133109A - Crystal oscillator of voltage control - Google Patents

Crystal oscillator of voltage control

Info

Publication number
JPS55133109A
JPS55133109A JP4068979A JP4068979A JPS55133109A JP S55133109 A JPS55133109 A JP S55133109A JP 4068979 A JP4068979 A JP 4068979A JP 4068979 A JP4068979 A JP 4068979A JP S55133109 A JPS55133109 A JP S55133109A
Authority
JP
Japan
Prior art keywords
oscillation
variation
circuit
frequency
crystal oscillator
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
JP4068979A
Other languages
Japanese (ja)
Inventor
Shigeo Takahashi
Yukio Naito
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.)
Toyo Communication Equipment Co Ltd
Original Assignee
Toyo Communication Equipment 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 Toyo Communication Equipment Co Ltd filed Critical Toyo Communication Equipment Co Ltd
Priority to JP4068979A priority Critical patent/JPS55133109A/en
Publication of JPS55133109A publication Critical patent/JPS55133109A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03L—AUTOMATIC CONTROL, STARTING, SYNCHRONISATION OR STABILISATION OF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES
    • H03L1/00—Stabilisation of generator output against variations of physical values, e.g. power supply

Landscapes

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

Abstract

PURPOSE:To establish the voltage controlled crystal oscillation stabilizing the oscillated frequency, by mutually cancelling the change in the frequency produced with the variation of parameter of the circuit element due to the variation of the power supply voltage. CONSTITUTION:The oscillation of the third order over-tone oscillation mode of the crystal oscillator Q1 is made with the Colpitts oscillation circuit having the transistor TR1, Zener diode ZD1, resistor R2, capacitor C3, inductance L1 and basic capacitors C1, C2. The inductance Ls stabilizes the oscillation circuit as known as the method of levering, and the value is a value shifted slightly from the essential optimal value. As a result, the excitation circuit including the transistor TR1 produces the frequency shift with the variation of the power supply voltage Vcc, and this shift is cancelled with the frequency shift with the simple stable bias circuit by means of the Zener diode ZD1.
JP4068979A 1979-04-04 1979-04-04 Crystal oscillator of voltage control Pending JPS55133109A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4068979A JPS55133109A (en) 1979-04-04 1979-04-04 Crystal oscillator of voltage control

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4068979A JPS55133109A (en) 1979-04-04 1979-04-04 Crystal oscillator of voltage control

Publications (1)

Publication Number Publication Date
JPS55133109A true JPS55133109A (en) 1980-10-16

Family

ID=12587514

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4068979A Pending JPS55133109A (en) 1979-04-04 1979-04-04 Crystal oscillator of voltage control

Country Status (1)

Country Link
JP (1) JPS55133109A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0440103A (en) * 1990-06-06 1992-02-10 Oki Electric Ind Co Ltd Voltage controlled oscillator
WO1996030996A1 (en) * 1995-03-24 1996-10-03 Instituut Voor Milieu- En Agritechniek (Imag-Dlo) Circuit for modulating a crystal oscillator with voltage-controlled (pin) diode
WO2002011277A1 (en) * 2000-08-01 2002-02-07 Yeon Moon Jeong High-frequency oscillation circuit
KR100354241B1 (en) * 1999-01-05 2002-09-26 알프스 덴키 가부시키가이샤 Voltage controlled oscillator

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0440103A (en) * 1990-06-06 1992-02-10 Oki Electric Ind Co Ltd Voltage controlled oscillator
WO1996030996A1 (en) * 1995-03-24 1996-10-03 Instituut Voor Milieu- En Agritechniek (Imag-Dlo) Circuit for modulating a crystal oscillator with voltage-controlled (pin) diode
NL9500575A (en) * 1995-03-24 1996-11-01 Inst Milieu & Agritech Circuit for modulation of a crystal oscillator with voltage controlled (pin) diode.
KR100354241B1 (en) * 1999-01-05 2002-09-26 알프스 덴키 가부시키가이샤 Voltage controlled oscillator
WO2002011277A1 (en) * 2000-08-01 2002-02-07 Yeon Moon Jeong High-frequency oscillation circuit
US6683507B2 (en) 2000-08-01 2004-01-27 Yeon Moon Jeong High-frequency oscillation circuit
KR100759508B1 (en) * 2000-08-01 2007-09-18 정연문 High-quency oscillation circuit having a feedback circuit

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