JPS5713382A - Power source circuit for electronic clock - Google Patents

Power source circuit for electronic clock

Info

Publication number
JPS5713382A
JPS5713382A JP8749680A JP8749680A JPS5713382A JP S5713382 A JPS5713382 A JP S5713382A JP 8749680 A JP8749680 A JP 8749680A JP 8749680 A JP8749680 A JP 8749680A JP S5713382 A JPS5713382 A JP S5713382A
Authority
JP
Japan
Prior art keywords
voltage
circuit
cell
electronic clock
reduced
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
JP8749680A
Other languages
Japanese (ja)
Inventor
Masao Sakuyama
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 JP8749680A priority Critical patent/JPS5713382A/en
Publication of JPS5713382A publication Critical patent/JPS5713382A/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
    • G04G19/02—Conversion or regulation of current or voltage
    • G04G19/06—Regulation

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electromechanical Clocks (AREA)

Abstract

PURPOSE:To reduce a consumption power of an electronic clock, by a method wherein a cell is dividedly reduced in a voltage, so reduced voltage is applied to a clock circuit, and simultaneously, a means for dividing the cell voltage is controlled so that the reduced voltage is kept constant. CONSTITUTION:A voltage, into which a voltage E of a cell 7 is divided, is supplied to an integrated circuit 1, equipped with a circuit of an electronic clock, by means of a voltage control circuit 3. A voltage VO, applied to the integrated circuit 1, is detected by a voltage detecting circuit 2 via a level shift circuit 6, a count value of an up-down counter 4e in a voltage control circuit 3 is caused to change by means of the output, the voltage control circuit 3 is controlled to keep the voltage VO constant. A power-on reset circuit 5 outputs a differentiation signal PO and resets a UDC 4e when the cell 7 is set.
JP8749680A 1980-06-28 1980-06-28 Power source circuit for electronic clock Pending JPS5713382A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8749680A JPS5713382A (en) 1980-06-28 1980-06-28 Power source circuit for electronic clock

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8749680A JPS5713382A (en) 1980-06-28 1980-06-28 Power source circuit for electronic clock

Publications (1)

Publication Number Publication Date
JPS5713382A true JPS5713382A (en) 1982-01-23

Family

ID=13916570

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8749680A Pending JPS5713382A (en) 1980-06-28 1980-06-28 Power source circuit for electronic clock

Country Status (1)

Country Link
JP (1) JPS5713382A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1993022712A1 (en) * 1992-04-27 1993-11-11 Citizen Watch Co., Ltd. Hand-indication electronic timepiece

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS547371A (en) * 1977-06-17 1979-01-20 Seiko Epson Corp Electronic watch
JPS549665A (en) * 1977-06-23 1979-01-24 Nippon Precision Circuits Electronic timepiece

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS547371A (en) * 1977-06-17 1979-01-20 Seiko Epson Corp Electronic watch
JPS549665A (en) * 1977-06-23 1979-01-24 Nippon Precision Circuits Electronic timepiece

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1993022712A1 (en) * 1992-04-27 1993-11-11 Citizen Watch Co., Ltd. Hand-indication electronic timepiece
US6072752A (en) * 1992-04-27 2000-06-06 Citizen Watch Co., Ltd. Hand display-type electronic timepiece

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