JPS5665507A - Quartz oscillation circuit - Google Patents

Quartz oscillation circuit

Info

Publication number
JPS5665507A
JPS5665507A JP14255779A JP14255779A JPS5665507A JP S5665507 A JPS5665507 A JP S5665507A JP 14255779 A JP14255779 A JP 14255779A JP 14255779 A JP14255779 A JP 14255779A JP S5665507 A JPS5665507 A JP S5665507A
Authority
JP
Japan
Prior art keywords
voltage
cell
oscillation circuit
constant
mosfet
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
JP14255779A
Other languages
Japanese (ja)
Inventor
Takeo Komatsu
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric 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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP14255779A priority Critical patent/JPS5665507A/en
Publication of JPS5665507A publication Critical patent/JPS5665507A/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
    • H03B5/364—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 comprising field effect transistors

Landscapes

  • Oscillators With Electromechanical Resonators (AREA)

Abstract

PURPOSE:To keep an operating point of a quartz oscillation circuit, even if the voltage of a cell is in variation, by driving the quartz oscillation circuit with a constant current circuit of optimum design. CONSTITUTION:The voltage at the connection point between a resistor 10 and an MOSFET 11 is almost at a constant voltage to the voltage variance of a cell 8, since the voltage-current characteristics of the MOSFET 11 are shown as a quadratic equation. The gate voltage at an MOSFET 9 is also at a constant voltage against the voltaage variation of the cell 8, and when an FET 9 operates at a saturation area (pentode area), the current flowing to the FET 9 is constant. Accordingly, even if the voltage of the cell decreases near 1.0V, the operating point of MOSFETs 1 and 2 is unchanged for stable operation.
JP14255779A 1979-11-01 1979-11-01 Quartz oscillation circuit Pending JPS5665507A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14255779A JPS5665507A (en) 1979-11-01 1979-11-01 Quartz oscillation circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14255779A JPS5665507A (en) 1979-11-01 1979-11-01 Quartz oscillation circuit

Publications (1)

Publication Number Publication Date
JPS5665507A true JPS5665507A (en) 1981-06-03

Family

ID=15318102

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14255779A Pending JPS5665507A (en) 1979-11-01 1979-11-01 Quartz oscillation circuit

Country Status (1)

Country Link
JP (1) JPS5665507A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS594677U (en) * 1982-07-01 1984-01-12 富士電機株式会社 Telescopic housing for electrical equipment
JPS597091U (en) * 1982-07-01 1984-01-18 原正　登 Immersed “A” floor filled with “A” materials with different specific gravity

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51102449A (en) * 1975-02-13 1976-09-09 Suwa Seikosha Kk DENSHISHIKI DOKEI

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51102449A (en) * 1975-02-13 1976-09-09 Suwa Seikosha Kk DENSHISHIKI DOKEI

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS594677U (en) * 1982-07-01 1984-01-12 富士電機株式会社 Telescopic housing for electrical equipment
JPS597091U (en) * 1982-07-01 1984-01-18 原正　登 Immersed “A” floor filled with “A” materials with different specific gravity

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