JPS55143841A - Oscillating circuit - Google Patents

Oscillating circuit

Info

Publication number
JPS55143841A
JPS55143841A JP5179979A JP5179979A JPS55143841A JP S55143841 A JPS55143841 A JP S55143841A JP 5179979 A JP5179979 A JP 5179979A JP 5179979 A JP5179979 A JP 5179979A JP S55143841 A JPS55143841 A JP S55143841A
Authority
JP
Japan
Prior art keywords
oscillating circuit
amplitude
set value
comparator
power consumption
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
JP5179979A
Other languages
Japanese (ja)
Inventor
Shinji Morozumi
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.)
Seiko Epson Corp
Suwa Seikosha KK
Original Assignee
Seiko Epson Corp
Suwa Seikosha KK
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 Seiko Epson Corp, Suwa Seikosha KK filed Critical Seiko Epson Corp
Priority to JP5179979A priority Critical patent/JPS55143841A/en
Publication of JPS55143841A publication Critical patent/JPS55143841A/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
    • H03L5/00—Automatic control of voltage, current, or power

Landscapes

  • Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
  • Oscillators With Electromechanical Resonators (AREA)

Abstract

PURPOSE:To reduce power consumption of an oscillating circuit and improve stability, by comparing the operating amplitude of the oscillating circuit with a set value to control the amplitude. CONSTITUTION:The output of oscillating circuit 2 is supplied to comparator 4 and is compared with reference voltage source 3. Next, the output of comparator 4 controls voltage control transistor 6 through LPF5. Thus, the operating amplitude of oscillating circuit 2 is so limited that the amplitude may be prevented from being a set value or more. By restraining always the amplitude of oscillating circuit 2 to a required minimum by this set value, the charging and discharging current is reduced, and power consumption is reduced, and simultaneously, stability can be improved.
JP5179979A 1979-04-26 1979-04-26 Oscillating circuit Pending JPS55143841A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5179979A JPS55143841A (en) 1979-04-26 1979-04-26 Oscillating circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5179979A JPS55143841A (en) 1979-04-26 1979-04-26 Oscillating circuit

Publications (1)

Publication Number Publication Date
JPS55143841A true JPS55143841A (en) 1980-11-10

Family

ID=12896968

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5179979A Pending JPS55143841A (en) 1979-04-26 1979-04-26 Oscillating circuit

Country Status (1)

Country Link
JP (1) JPS55143841A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58136113A (en) * 1982-02-05 1983-08-13 Nippon Precision Saakitsutsu Kk Crystal oscillator
US4577165A (en) * 1983-02-22 1986-03-18 Tokyo Denshi Kagaku Co., Ltd. High-frequency oscillator with power amplifier and automatic power control
JPH04505533A (en) * 1989-06-02 1992-09-24 モトローラ・インコーポレーテッド Voltage controlled oscillator with automatic current control
US5654678A (en) * 1992-12-07 1997-08-05 Nec Corporation Level-controlled oscillation circuit having a continuously variable impedance control circuit
JP2005521978A (en) * 2002-04-04 2005-07-21 ザ・リージェンツ・オブ・ジ・ユニバーシティ・オブ・ミシガン Clock signal generation circuit
JP2006121477A (en) * 2004-10-22 2006-05-11 Ricoh Co Ltd Oscillation device and electronic equipment using the same

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS506258A (en) * 1973-05-18 1975-01-22
JPS53105162A (en) * 1974-09-25 1978-09-13 Sound Technology Inc Device for controlling output amplitude of amplifier
JPS53124050A (en) * 1977-03-25 1978-10-30 Hewlett Packard Yokogawa Oscillating circuit having output signal control circuit

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS506258A (en) * 1973-05-18 1975-01-22
JPS53105162A (en) * 1974-09-25 1978-09-13 Sound Technology Inc Device for controlling output amplitude of amplifier
JPS53124050A (en) * 1977-03-25 1978-10-30 Hewlett Packard Yokogawa Oscillating circuit having output signal control circuit

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58136113A (en) * 1982-02-05 1983-08-13 Nippon Precision Saakitsutsu Kk Crystal oscillator
US4577165A (en) * 1983-02-22 1986-03-18 Tokyo Denshi Kagaku Co., Ltd. High-frequency oscillator with power amplifier and automatic power control
JPH04505533A (en) * 1989-06-02 1992-09-24 モトローラ・インコーポレーテッド Voltage controlled oscillator with automatic current control
US5654678A (en) * 1992-12-07 1997-08-05 Nec Corporation Level-controlled oscillation circuit having a continuously variable impedance control circuit
JP2005521978A (en) * 2002-04-04 2005-07-21 ザ・リージェンツ・オブ・ジ・ユニバーシティ・オブ・ミシガン Clock signal generation circuit
JP2006121477A (en) * 2004-10-22 2006-05-11 Ricoh Co Ltd Oscillation device and electronic equipment using the same

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