JPS56163473A - Electronic timepiece - Google Patents

Electronic timepiece

Info

Publication number
JPS56163473A
JPS56163473A JP6822180A JP6822180A JPS56163473A JP S56163473 A JPS56163473 A JP S56163473A JP 6822180 A JP6822180 A JP 6822180A JP 6822180 A JP6822180 A JP 6822180A JP S56163473 A JPS56163473 A JP S56163473A
Authority
JP
Japan
Prior art keywords
circuit
voltage
constant
heavy load
stops
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
JP6822180A
Other languages
Japanese (ja)
Other versions
JPS6241350B2 (en
Inventor
Hiroyuki Chihara
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 JP6822180A priority Critical patent/JPS56163473A/en
Priority to GB8113234A priority patent/GB2077004B/en
Priority to CH336981A priority patent/CH647921GA3/fr
Priority to US06/266,674 priority patent/US4395138A/en
Publication of JPS56163473A publication Critical patent/JPS56163473A/en
Priority to HK886/85A priority patent/HK88685A/en
Publication of JPS6241350B2 publication Critical patent/JPS6241350B2/ja
Granted 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
    • G—PHYSICS
    • G04—HOROLOGY
    • G04C—ELECTROMECHANICAL CLOCKS OR WATCHES
    • G04C10/00—Arrangements of electric power supplies in time pieces
    • 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
    • G04G19/04—Capacitive voltage division or multiplication

Abstract

PURPOSE:To supply a stable constant voltage to a clock circuit independently of the change in the battery voltage by supplying power to the electronic timepiece circuit through a constant-voltage circuit when a heavy load such as an alarm, buzzer or the like is operated. CONSTITUTION:Normally, a power source controlling circuit 9 stops the operation of a constant-voltage circuit 8 and allows a step-down circuit 10 to operate in order to apply the voltage obtained by stepping down the voltage of a lithium battery 11 to a time standard source 1, a binary frequency dividing circuit 2 and the like. On the other hand, when a heavy load circuit 7 for a lamp or the like is operated, the power source controlling circuit 9 stops the operation of the step-down circuit 10 and allows the constant-voltage circuit 8 to operate in order to supply a stabilized voltage to said circuits continuously for the time set by a timer 82 after the heavy load has been removed.
JP6822180A 1980-05-22 1980-05-22 Electronic timepiece Granted JPS56163473A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
JP6822180A JPS56163473A (en) 1980-05-22 1980-05-22 Electronic timepiece
GB8113234A GB2077004B (en) 1980-05-22 1981-04-29 Improvements in or relating to electronic timepieces
CH336981A CH647921GA3 (en) 1980-05-22 1981-05-22
US06/266,674 US4395138A (en) 1980-05-22 1981-05-22 Electronic timepiece
HK886/85A HK88685A (en) 1980-05-22 1985-11-07 Improvements in or relating to electronic timepieces

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6822180A JPS56163473A (en) 1980-05-22 1980-05-22 Electronic timepiece

Related Child Applications (1)

Application Number Title Priority Date Filing Date
JP8100887A Division JPS62254092A (en) 1987-04-03 1987-04-03 Electronic timepiece

Publications (2)

Publication Number Publication Date
JPS56163473A true JPS56163473A (en) 1981-12-16
JPS6241350B2 JPS6241350B2 (en) 1987-09-02

Family

ID=13367527

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6822180A Granted JPS56163473A (en) 1980-05-22 1980-05-22 Electronic timepiece

Country Status (1)

Country Link
JP (1) JPS56163473A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59684A (en) * 1982-06-25 1984-01-05 Matsushita Electric Works Ltd Electronic timepiece circuit
JPH06102949A (en) * 1993-04-16 1994-04-15 Hitachi Ltd Semiconductor integrated circuit

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59684A (en) * 1982-06-25 1984-01-05 Matsushita Electric Works Ltd Electronic timepiece circuit
JPH06102949A (en) * 1993-04-16 1994-04-15 Hitachi Ltd Semiconductor integrated circuit

Also Published As

Publication number Publication date
JPS6241350B2 (en) 1987-09-02

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