JPS5386270A - Oscillation circuit for electronic timepiece - Google Patents

Oscillation circuit for electronic timepiece

Info

Publication number
JPS5386270A
JPS5386270A JP15490776A JP15490776A JPS5386270A JP S5386270 A JPS5386270 A JP S5386270A JP 15490776 A JP15490776 A JP 15490776A JP 15490776 A JP15490776 A JP 15490776A JP S5386270 A JPS5386270 A JP S5386270A
Authority
JP
Japan
Prior art keywords
oscillation circuit
electronic timepiece
circuit
acted
lighting
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
JP15490776A
Other languages
Japanese (ja)
Inventor
Toshikiyo Kato
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.)
Citizen Watch Co Ltd
Original Assignee
Citizen Watch 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 Citizen Watch Co Ltd filed Critical Citizen Watch Co Ltd
Priority to JP15490776A priority Critical patent/JPS5386270A/en
Publication of JPS5386270A publication Critical patent/JPS5386270A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G04—HOROLOGY
    • G04G—ELECTRONIC TIME-PIECES
    • G04G19/00—Electric power supply circuits specially adapted for use in electronic time-pieces
    • G04G19/08—Arrangements for preventing voltage drop due to overloading the power supply

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electromechanical Clocks (AREA)
  • Power Sources (AREA)
  • Direct Current Feeding And Distribution (AREA)
  • Oscillators With Electromechanical Resonators (AREA)
  • Electric Clocks (AREA)

Abstract

PURPOSE:To provide an electronic timepiece, in which power line of oscillation circuit in use of crystal oscillator is arranged to be capable of being switch to battery and booster circuit, whereby it is prevented that operation of the oscillation circuit be stopped at the time when heavy load caused, for instance, by lighting of lamp is acted.
JP15490776A 1976-12-24 1976-12-24 Oscillation circuit for electronic timepiece Pending JPS5386270A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15490776A JPS5386270A (en) 1976-12-24 1976-12-24 Oscillation circuit for electronic timepiece

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15490776A JPS5386270A (en) 1976-12-24 1976-12-24 Oscillation circuit for electronic timepiece

Publications (1)

Publication Number Publication Date
JPS5386270A true JPS5386270A (en) 1978-07-29

Family

ID=15594558

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15490776A Pending JPS5386270A (en) 1976-12-24 1976-12-24 Oscillation circuit for electronic timepiece

Country Status (1)

Country Link
JP (1) JPS5386270A (en)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5577327A (en) * 1978-12-06 1980-06-11 Casio Computer Co Ltd Voltage converting circuit
JPS55102213U (en) * 1979-01-11 1980-07-16
JPS55171522U (en) * 1979-05-25 1980-12-09
JPS5696273A (en) * 1979-12-28 1981-08-04 Seiko Epson Corp Electronic timepiece
JPS56128478A (en) * 1980-03-14 1981-10-07 Citizen Watch Co Ltd Electronic watch using power source of silver peroxide battery
JPS56155885A (en) * 1980-05-06 1981-12-02 Citizen Watch Co Ltd Electronic timepiece
JPS56157886A (en) * 1980-05-09 1981-12-05 Citizen Watch Co Ltd Voltage change-over circuit for electronic timepiece
JPS57142130A (en) * 1981-02-26 1982-09-02 Casio Computer Co Ltd Small electronic device power supply system
JPS5942524A (en) * 1982-09-01 1984-03-09 Olympus Optical Co Ltd Power supply circuit of camera
JPS59101000A (en) * 1982-11-16 1984-06-11 ロ−ベルト・ボツシユ・ゲゼルシヤフト・ミツト・ベシユレンクテル・ハフツング Apparatus for measuring drive parameter of internal combustion engine
JPH06339233A (en) * 1993-05-28 1994-12-06 Matsushita Electric Ind Co Ltd Power source switching apparatus

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5577327A (en) * 1978-12-06 1980-06-11 Casio Computer Co Ltd Voltage converting circuit
JPS55102213U (en) * 1979-01-11 1980-07-16
JPS55171522U (en) * 1979-05-25 1980-12-09
JPS5696273A (en) * 1979-12-28 1981-08-04 Seiko Epson Corp Electronic timepiece
JPS6240671B2 (en) * 1979-12-28 1987-08-29 Seikoo Epuson Kk
JPS6234114B2 (en) * 1980-03-14 1987-07-24 Citizen Watch Co Ltd
JPS56128478A (en) * 1980-03-14 1981-10-07 Citizen Watch Co Ltd Electronic watch using power source of silver peroxide battery
JPS56155885A (en) * 1980-05-06 1981-12-02 Citizen Watch Co Ltd Electronic timepiece
JPS56157886A (en) * 1980-05-09 1981-12-05 Citizen Watch Co Ltd Voltage change-over circuit for electronic timepiece
JPS6233553B2 (en) * 1980-05-09 1987-07-21 Citizen Watch Co Ltd
JPS57142130A (en) * 1981-02-26 1982-09-02 Casio Computer Co Ltd Small electronic device power supply system
JPH0126259B2 (en) * 1981-02-26 1989-05-23 Casio Computer Co Ltd
JPS5942524A (en) * 1982-09-01 1984-03-09 Olympus Optical Co Ltd Power supply circuit of camera
JPS59101000A (en) * 1982-11-16 1984-06-11 ロ−ベルト・ボツシユ・ゲゼルシヤフト・ミツト・ベシユレンクテル・ハフツング Apparatus for measuring drive parameter of internal combustion engine
JPH06339233A (en) * 1993-05-28 1994-12-06 Matsushita Electric Ind Co Ltd Power source switching apparatus

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