JPS5798888A - Electronic wrist watch - Google Patents

Electronic wrist watch

Info

Publication number
JPS5798888A
JPS5798888A JP17518880A JP17518880A JPS5798888A JP S5798888 A JPS5798888 A JP S5798888A JP 17518880 A JP17518880 A JP 17518880A JP 17518880 A JP17518880 A JP 17518880A JP S5798888 A JPS5798888 A JP S5798888A
Authority
JP
Japan
Prior art keywords
voltage
circuit
battery
current
output
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
JP17518880A
Other languages
Japanese (ja)
Inventor
Tsutomu Otake
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 JP17518880A priority Critical patent/JPS5798888A/en
Publication of JPS5798888A publication Critical patent/JPS5798888A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G04—HOROLOGY
    • G04C—ELECTROMECHANICAL CLOCKS OR WATCHES
    • G04C10/00—Arrangements of electric power supplies in time pieces

Landscapes

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

Abstract

PURPOSE:To reduce the number of the divisions of a thermionic element, cut machining processes and set up most suitable charging voltage for a battery by boosting voltage arbitrarily according to the generated potential in respect of the number of serial steps. CONSTITUTION:The output of thermionic element modules 1 that are directly connected in series charge a secondary battery 3 via a voltage boosting circuit 2 and drive a load 4 for a watch body. The circuit 2 in trun operates a multivibrator by the generated voltage of the modules 1, and the voltage of the output AC current of the circuit 2 is boosted by a transformer and the current is rectified to charge the battery 3.
JP17518880A 1980-12-11 1980-12-11 Electronic wrist watch Pending JPS5798888A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP17518880A JPS5798888A (en) 1980-12-11 1980-12-11 Electronic wrist watch

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP17518880A JPS5798888A (en) 1980-12-11 1980-12-11 Electronic wrist watch

Publications (1)

Publication Number Publication Date
JPS5798888A true JPS5798888A (en) 1982-06-19

Family

ID=15991816

Family Applications (1)

Application Number Title Priority Date Filing Date
JP17518880A Pending JPS5798888A (en) 1980-12-11 1980-12-11 Electronic wrist watch

Country Status (1)

Country Link
JP (1) JPS5798888A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63242772A (en) * 1987-03-31 1988-10-07 Hitachi Ltd Motor-operated power steering source device
EP1056190A1 (en) * 1998-09-17 2000-11-29 Seiko Epson Corporation Power supply device, power supply method, portable electronic device, and electronic watch

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63242772A (en) * 1987-03-31 1988-10-07 Hitachi Ltd Motor-operated power steering source device
EP1056190A1 (en) * 1998-09-17 2000-11-29 Seiko Epson Corporation Power supply device, power supply method, portable electronic device, and electronic watch
EP1056190A4 (en) * 1998-09-17 2003-03-05 Seiko Epson Corp Power supply device, power supply method, portable electronic device, and electronic watch

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