JPS5696273A - Electronic timepiece - Google Patents

Electronic timepiece

Info

Publication number
JPS5696273A
JPS5696273A JP17181379A JP17181379A JPS5696273A JP S5696273 A JPS5696273 A JP S5696273A JP 17181379 A JP17181379 A JP 17181379A JP 17181379 A JP17181379 A JP 17181379A JP S5696273 A JPS5696273 A JP S5696273A
Authority
JP
Japan
Prior art keywords
power supply
auxiliary power
block
timepiece
voltage
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
JP17181379A
Other languages
Japanese (ja)
Other versions
JPS6240671B2 (en
Inventor
Hajime Kobayashi
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 JP17181379A priority Critical patent/JPS5696273A/en
Publication of JPS5696273A publication Critical patent/JPS5696273A/en
Publication of JPS6240671B2 publication Critical patent/JPS6240671B2/ja
Granted legal-status Critical Current

Links

Abstract

PURPOSE: To stabilize operation by preventing the failure of main parts with an auxiliary power source is operated to make auxiliary power supply for the normal operation of the other electronic circuits than load upon the change of power supply voltage.
CONSTITUTION: Normal battery voltage is used while lowered by the circuit of a block A and when a heavy load operates the auxiliary power generated by a block B is supplied to the movement of a timepiece. When it has become not possible to obtain a fixed potential for -VSS1 due to the sudden change of the voltage given between power supply voltage +VDD and -VSS2, the stop of the timepiece is prevented by the auxiliary power supply from the block B.
COPYRIGHT: (C)1981,JPO&Japio
JP17181379A 1979-12-28 1979-12-28 Electronic timepiece Granted JPS5696273A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP17181379A JPS5696273A (en) 1979-12-28 1979-12-28 Electronic timepiece

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP17181379A JPS5696273A (en) 1979-12-28 1979-12-28 Electronic timepiece

Related Child Applications (1)

Application Number Title Priority Date Filing Date
JP8100787A Division JPS62254091A (en) 1987-04-03 1987-04-03 Electronic timepiece

Publications (2)

Publication Number Publication Date
JPS5696273A true JPS5696273A (en) 1981-08-04
JPS6240671B2 JPS6240671B2 (en) 1987-08-29

Family

ID=15930197

Family Applications (1)

Application Number Title Priority Date Filing Date
JP17181379A Granted JPS5696273A (en) 1979-12-28 1979-12-28 Electronic timepiece

Country Status (1)

Country Link
JP (1) JPS5696273A (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51132864A (en) * 1975-01-29 1976-11-18 Seiko Epson Corp Electronic clock
JPS5386270A (en) * 1976-12-24 1978-07-29 Citizen Watch Co Ltd Oscillation circuit for electronic timepiece
JPS53110354A (en) * 1977-03-09 1978-09-27 Hitachi Ltd Oscillator circuit
JPS549665A (en) * 1977-06-23 1979-01-24 Nippon Precision Circuits Electronic timepiece

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51132864A (en) * 1975-01-29 1976-11-18 Seiko Epson Corp Electronic clock
JPS5386270A (en) * 1976-12-24 1978-07-29 Citizen Watch Co Ltd Oscillation circuit for electronic timepiece
JPS53110354A (en) * 1977-03-09 1978-09-27 Hitachi Ltd Oscillator circuit
JPS549665A (en) * 1977-06-23 1979-01-24 Nippon Precision Circuits Electronic timepiece

Also Published As

Publication number Publication date
JPS6240671B2 (en) 1987-08-29

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