JPS55160882A - Hand type electronic wrist watch - Google Patents

Hand type electronic wrist watch

Info

Publication number
JPS55160882A
JPS55160882A JP6823579A JP6823579A JPS55160882A JP S55160882 A JPS55160882 A JP S55160882A JP 6823579 A JP6823579 A JP 6823579A JP 6823579 A JP6823579 A JP 6823579A JP S55160882 A JPS55160882 A JP S55160882A
Authority
JP
Japan
Prior art keywords
step motor
drive voltage
type electronic
wrist watch
hand type
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
JP6823579A
Other languages
Japanese (ja)
Inventor
Tomohiko Abe
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 JP6823579A priority Critical patent/JPS55160882A/en
Publication of JPS55160882A publication Critical patent/JPS55160882A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G04—HOROLOGY
    • G04C—ELECTROMECHANICAL CLOCKS OR WATCHES
    • G04C3/00—Electromechanical clocks or watches independent of other time-pieces and in which the movement is maintained by electric means
    • G04C3/14—Electromechanical clocks or watches independent of other time-pieces and in which the movement is maintained by electric means incorporating a stepping motor

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electromechanical Clocks (AREA)
  • Control Of Stepping Motors (AREA)

Abstract

PURPOSE:To accomplish higher efficiency of the hand rotating step motor by setting the drive voltage of the step motor at 2v or more to be driven by the square wave voltage. CONSTITUTION:A battery with an output voltage of 2v or more is provided as the watch body driving source. When the drive voltage to be applied to the step motor is raised, a shorter time A' is required for reaching the current iA to start the rotation of the rotor. This eliminates waste current spent until the rotor starts rotation, thereby shortening the pulse width of the drive voltage.
JP6823579A 1979-06-01 1979-06-01 Hand type electronic wrist watch Pending JPS55160882A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6823579A JPS55160882A (en) 1979-06-01 1979-06-01 Hand type electronic wrist watch

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6823579A JPS55160882A (en) 1979-06-01 1979-06-01 Hand type electronic wrist watch

Publications (1)

Publication Number Publication Date
JPS55160882A true JPS55160882A (en) 1980-12-15

Family

ID=13367914

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6823579A Pending JPS55160882A (en) 1979-06-01 1979-06-01 Hand type electronic wrist watch

Country Status (1)

Country Link
JP (1) JPS55160882A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1260884A2 (en) * 2001-05-21 2002-11-27 Seiko Instruments Inc. Analog electronic timepiece

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1260884A2 (en) * 2001-05-21 2002-11-27 Seiko Instruments Inc. Analog electronic timepiece
EP1260884A3 (en) * 2001-05-21 2003-12-10 Seiko Instruments Inc. Analog electronic timepiece

Similar Documents

Publication Publication Date Title
JPS5364711A (en) Brushless motor drive circuit
GB2059649B (en) Electronic timepiece
CH628772GA3 (en)
CH620084GA3 (en)
JPS53132382A (en) Electronic watch
JPS55160882A (en) Hand type electronic wrist watch
JPS53132383A (en) Electronic watch circuit
JPS53132381A (en) Electronic watch
JPS53132386A (en) Electronic watch
JPS5384782A (en) Electronic wristwatch
JPS5332767A (en) Electronic wristwatch
JPS5375976A (en) Step motor for electronic wrist watch
JPS6444377A (en) Motor-operated power steering control system
JPS5381268A (en) Electronic wrist watch
JPS5360267A (en) Electronic watch
JPS5412864A (en) Electronic watch
JPS5421873A (en) Electronic watch
JPS5533642A (en) Step motor device for electronic watch
JPS5384769A (en) Electronic wristwatch
JPS5394981A (en) Electronic wristwatch
JPS5345568A (en) Electronic watch
JPS5387768A (en) Pulse motor driving circuit for watch
JPS5221867A (en) Automatic control circuit for pulse duration in electronic clocks
JPS547373A (en) Electronic watch
JPS5342860A (en) Electronic wristwatch