JPS5760707A - Oscillating circuit - Google Patents

Oscillating circuit

Info

Publication number
JPS5760707A
JPS5760707A JP13545080A JP13545080A JPS5760707A JP S5760707 A JPS5760707 A JP S5760707A JP 13545080 A JP13545080 A JP 13545080A JP 13545080 A JP13545080 A JP 13545080A JP S5760707 A JPS5760707 A JP S5760707A
Authority
JP
Japan
Prior art keywords
output
frequency
circuit
resistances
stability
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
JP13545080A
Other languages
Japanese (ja)
Inventor
Shingo Kawashima
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 JP13545080A priority Critical patent/JPS5760707A/en
Publication of JPS5760707A publication Critical patent/JPS5760707A/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
    • H03B28/00—Generation of oscillations by methods not covered by groups H03B5/00 - H03B27/00, including modification of the waveform to produce sinusoidal oscillations

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Theoretical Computer Science (AREA)
  • Oscillators With Electromechanical Resonators (AREA)

Abstract

PURPOSE:To obtain a low frequency stable output, by providing an osicllating part for a comparatively high frequency, a frequency dividing circuit which divides the output of this oscillating part into a prescribed value, and an integrating circuit which integrates the output of this frequecy dividing part. CONSTITUTION:A high-stability oscillating circuit 1 consisting of inverters 7, 8, and 9 including a quartz oscillator 10 is constituted. The oscillation output is divided into a desired frequency by a frequency dividing circuit 2, and the level is adjusted by a level setting part 3 consisting of an operational amplifier 11 and resistances 12 and 13. The rectangular wave is converted to an artificial sine wave by integrating parts 4 and 5 consisting of operational amplifiers 4 and 5, resistances 16 and 17, and capacitors 18 and 19, thus obtaining a high-stability output of <=1Hz low frequency from an output terminal 6.
JP13545080A 1980-09-29 1980-09-29 Oscillating circuit Pending JPS5760707A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13545080A JPS5760707A (en) 1980-09-29 1980-09-29 Oscillating circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13545080A JPS5760707A (en) 1980-09-29 1980-09-29 Oscillating circuit

Publications (1)

Publication Number Publication Date
JPS5760707A true JPS5760707A (en) 1982-04-12

Family

ID=15151990

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13545080A Pending JPS5760707A (en) 1980-09-29 1980-09-29 Oscillating circuit

Country Status (1)

Country Link
JP (1) JPS5760707A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59140626A (en) * 1983-01-31 1984-08-13 Nec Home Electronics Ltd Generating circuit of tracking pilot signal
JPS59121731U (en) * 1983-01-31 1984-08-16 日本電気ホームエレクトロニクス株式会社 Pilot signal generation circuit for tracking
JPS59121732U (en) * 1983-01-31 1984-08-16 日本電気ホームエレクトロニクス株式会社 Pilot signal generation circuit for tracking
JPH0236214U (en) * 1988-08-31 1990-03-08
US5117315A (en) * 1989-05-17 1992-05-26 Fuji Electric Co., Ltd. System and method for starting rotation of a disc in a disc storage unit

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59140626A (en) * 1983-01-31 1984-08-13 Nec Home Electronics Ltd Generating circuit of tracking pilot signal
JPS59121731U (en) * 1983-01-31 1984-08-16 日本電気ホームエレクトロニクス株式会社 Pilot signal generation circuit for tracking
JPS59121732U (en) * 1983-01-31 1984-08-16 日本電気ホームエレクトロニクス株式会社 Pilot signal generation circuit for tracking
JPH0236214U (en) * 1988-08-31 1990-03-08
US5117315A (en) * 1989-05-17 1992-05-26 Fuji Electric Co., Ltd. System and method for starting rotation of a disc in a disc storage unit

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