JPS56144604A - Quartz oscillating circuit - Google Patents

Quartz oscillating circuit

Info

Publication number
JPS56144604A
JPS56144604A JP4759180A JP4759180A JPS56144604A JP S56144604 A JPS56144604 A JP S56144604A JP 4759180 A JP4759180 A JP 4759180A JP 4759180 A JP4759180 A JP 4759180A JP S56144604 A JPS56144604 A JP S56144604A
Authority
JP
Japan
Prior art keywords
earth
capacity
quartz oscillator
composite capacity
capacitor
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
JP4759180A
Other languages
Japanese (ja)
Other versions
JPS6259923B2 (en
Inventor
Kenzo Okamoto
Shigeki Nakajima
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.)
Nihon Dempa Kogyo Co Ltd
Original Assignee
Nihon Dempa Kogyo 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 Nihon Dempa Kogyo Co Ltd filed Critical Nihon Dempa Kogyo Co Ltd
Priority to JP4759180A priority Critical patent/JPS56144604A/en
Publication of JPS56144604A publication Critical patent/JPS56144604A/en
Publication of JPS6259923B2 publication Critical patent/JPS6259923B2/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
    • H03B5/30—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)
  • Inductance-Capacitance Distribution Constants And Capacitance-Resistance Oscillators (AREA)

Abstract

PURPOSE:To obtain a stable oscillation frequency by inserting a capacitor between an energizing electrode and the earth so that the equivalent capacity between each energizing electrode of a quartz oscillator and the earth is 0.8-1.2. CONSTITUTION:Capacitor Ca is inserted between quartz oscillator Xtal and the earth. The electrostatic capacities between the energizing electrodes of the quartz oscillator and a metallic case are denoted as CH1 and CH2 respectively. Then, parallel composite capacity CA of Ca and CH1 is Ca+CH1, and while composite capacity CB of Cb, Cc and CH2 is as shown by equation 1, series composite capacity C is as shown by equation 2. Series composite capacity C can, therefore, be held nearly constant by setting Ca, Cb and Cc adequately. Further, the ratio of CA and CB can be within the range of 0.8-1.2 by setting Ca, Cb and Cc properly and even if the quarz oscillator oscillates, fluctuations of the oscillation frequency can be eliminated.
JP4759180A 1980-04-11 1980-04-11 Quartz oscillating circuit Granted JPS56144604A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4759180A JPS56144604A (en) 1980-04-11 1980-04-11 Quartz oscillating circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4759180A JPS56144604A (en) 1980-04-11 1980-04-11 Quartz oscillating circuit

Publications (2)

Publication Number Publication Date
JPS56144604A true JPS56144604A (en) 1981-11-11
JPS6259923B2 JPS6259923B2 (en) 1987-12-14

Family

ID=12779488

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4759180A Granted JPS56144604A (en) 1980-04-11 1980-04-11 Quartz oscillating circuit

Country Status (1)

Country Link
JP (1) JPS56144604A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04282180A (en) * 1990-10-30 1992-10-07 Dd Stud Inc Mathod and device for playing card game

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4922225A (en) * 1972-06-21 1974-02-27
JPS52130641U (en) * 1976-03-31 1977-10-04

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4922225A (en) * 1972-06-21 1974-02-27
JPS52130641U (en) * 1976-03-31 1977-10-04

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04282180A (en) * 1990-10-30 1992-10-07 Dd Stud Inc Mathod and device for playing card game

Also Published As

Publication number Publication date
JPS6259923B2 (en) 1987-12-14

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