JPS5375976A - Step motor for electronic wrist watch - Google Patents

Step motor for electronic wrist watch

Info

Publication number
JPS5375976A
JPS5375976A JP15125076A JP15125076A JPS5375976A JP S5375976 A JPS5375976 A JP S5375976A JP 15125076 A JP15125076 A JP 15125076A JP 15125076 A JP15125076 A JP 15125076A JP S5375976 A JPS5375976 A JP S5375976A
Authority
JP
Japan
Prior art keywords
step motor
wrist watch
electronic wrist
drive
accordance
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
JP15125076A
Other languages
Japanese (ja)
Inventor
Kiichi Kawamura
Sakio Okazaki
Minoru Hosokawa
Hiroshi Ishii
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 JP15125076A priority Critical patent/JPS5375976A/en
Publication of JPS5375976A publication Critical patent/JPS5375976A/en
Pending legal-status Critical Current

Links

Landscapes

  • Electromechanical Clocks (AREA)
  • Control Of Stepping Motors (AREA)

Abstract

PURPOSE:To make it possible to effect the drive of a step motor in accordance with the load thereby to realize the drive at a lower electric power by varying the pulse width of drive pulses in accordance for a rotor to rotate a preset angle after the starting operation.
JP15125076A 1976-12-15 1976-12-15 Step motor for electronic wrist watch Pending JPS5375976A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15125076A JPS5375976A (en) 1976-12-15 1976-12-15 Step motor for electronic wrist watch

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15125076A JPS5375976A (en) 1976-12-15 1976-12-15 Step motor for electronic wrist watch

Publications (1)

Publication Number Publication Date
JPS5375976A true JPS5375976A (en) 1978-07-05

Family

ID=15514544

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15125076A Pending JPS5375976A (en) 1976-12-15 1976-12-15 Step motor for electronic wrist watch

Country Status (1)

Country Link
JP (1) JPS5375976A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005119377A1 (en) * 2004-06-04 2005-12-15 Seiko Instruments Inc. Analog electronic clock and motor control circuit
JP2008228559A (en) * 2007-02-15 2008-09-25 Seiko Instruments Inc Stepping motor control circuit and analog electronic timepiece

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005119377A1 (en) * 2004-06-04 2005-12-15 Seiko Instruments Inc. Analog electronic clock and motor control circuit
JP2008228559A (en) * 2007-02-15 2008-09-25 Seiko Instruments Inc Stepping motor control circuit and analog electronic timepiece

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