JPS57172279A - Saving of power consumption for electronic time piece and electronic time piece employing it - Google Patents

Saving of power consumption for electronic time piece and electronic time piece employing it

Info

Publication number
JPS57172279A
JPS57172279A JP56132204A JP13220481A JPS57172279A JP S57172279 A JPS57172279 A JP S57172279A JP 56132204 A JP56132204 A JP 56132204A JP 13220481 A JP13220481 A JP 13220481A JP S57172279 A JPS57172279 A JP S57172279A
Authority
JP
Japan
Prior art keywords
time piece
electronic time
variation
coil
drive pulse
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
JP56132204A
Other languages
English (en)
Other versions
JPH0371672B2 (ja
Inventor
Uigeto Furidorin
Giyurin Ibu
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.)
ETA SA Manufacture Horlogere Suisse
Ebauchesfabrik ETA AG
Original Assignee
Ebauchesfabrik ETA AG
Eta SA Fabriques dEbauches
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 Ebauchesfabrik ETA AG, Eta SA Fabriques dEbauches filed Critical Ebauchesfabrik ETA AG
Publication of JPS57172279A publication Critical patent/JPS57172279A/ja
Publication of JPH0371672B2 publication Critical patent/JPH0371672B2/ja
Granted 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
    • G04C3/143—Means to reduce power consumption by reducing pulse width or amplitude and related problems, e.g. detection of unwanted or missing step

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Control Of Stepping Motors (AREA)
  • Electromechanical Clocks (AREA)
  • Moving Of Head For Track Selection And Changing (AREA)
JP56132204A 1980-08-25 1981-08-25 Saving of power consumption for electronic time piece and electronic time piece employing it Granted JPS57172279A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH638180A CH640999B (fr) 1980-08-25 1980-08-25 Procede et dispositif de commande d'une moteur pas a pas de piece d'horlogerie electronique.

Publications (2)

Publication Number Publication Date
JPS57172279A true JPS57172279A (en) 1982-10-23
JPH0371672B2 JPH0371672B2 (ja) 1991-11-14

Family

ID=4308683

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56132204A Granted JPS57172279A (en) 1980-08-25 1981-08-25 Saving of power consumption for electronic time piece and electronic time piece employing it

Country Status (6)

Country Link
US (1) US4430007A (ja)
JP (1) JPS57172279A (ja)
CH (1) CH640999B (ja)
DE (1) DE3132304C2 (ja)
FR (1) FR2489055A1 (ja)
GB (1) GB2082806B (ja)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60131097A (ja) * 1983-12-16 1985-07-12 Matsushita Electric Ind Co Ltd ステツピングモ−タの回転検出装置
JPS61101498U (ja) * 1984-12-10 1986-06-28

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH644989GA3 (ja) * 1981-03-18 1984-09-14
CH647129GA3 (ja) * 1982-02-16 1985-01-15
FR2529032A1 (fr) * 1982-06-21 1983-12-23 Omega Brandt & Freres Sa Louis Procede d'alimentation d'un moteur pas a pas monophase pour piece d'horlogerie
CH653206GA3 (ja) * 1983-09-16 1985-12-31
EP0253153B1 (fr) * 1986-07-02 1991-08-28 Asulab S.A. Procédé et dispositif de commande d'un moteur pas à pas
CH673750B5 (ja) * 1988-09-23 1990-10-15 Asulab Sa
JP3057340B2 (ja) * 1992-03-12 2000-06-26 セイコーインスツルメンツ株式会社 電子時計
JP4236956B2 (ja) * 2003-02-24 2009-03-11 セイコーインスツル株式会社 ステップモータ制御装置及び電子時計
US7235962B2 (en) * 2003-11-17 2007-06-26 Babak Mazda Inductor-based current sensing
JP4800787B2 (ja) * 2006-02-15 2011-10-26 セイコーインスツル株式会社 ステップモータ駆動回路及びアナログ電子時計
EP3106890A1 (en) * 2015-06-19 2016-12-21 General Electric Technology GmbH Method for measuring a stator core of an electric machine and measuring device
EP3663871A1 (en) * 2018-12-06 2020-06-10 The Swatch Group Research and Development Ltd Motor drive unit of a dc electric motor

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55129786A (en) * 1980-03-10 1980-10-07 Seiko Epson Corp Step motor mechanism for electronic watch
JPS5677778A (en) * 1979-11-29 1981-06-26 Rhythm Watch Co Ltd Driving device for timepiece step motor

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3500103A (en) * 1966-12-07 1970-03-10 Benrus Corp Electric timepiece drive with cut-off
CH1372372A4 (ja) * 1972-09-20 1976-09-15
JPS5542356B2 (ja) * 1972-12-22 1980-10-30
JPS6024680B2 (ja) * 1973-03-07 1985-06-14 セイコーインスツルメンツ株式会社 時計用ステツプモ−タの駆動回路
JPS5292560A (en) * 1976-01-29 1977-08-04 Seiko Instr & Electronics Ltd Switch box drive pulse width control circuit for electronic clocks

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5677778A (en) * 1979-11-29 1981-06-26 Rhythm Watch Co Ltd Driving device for timepiece step motor
JPS55129786A (en) * 1980-03-10 1980-10-07 Seiko Epson Corp Step motor mechanism for electronic watch

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60131097A (ja) * 1983-12-16 1985-07-12 Matsushita Electric Ind Co Ltd ステツピングモ−タの回転検出装置
JPS61101498U (ja) * 1984-12-10 1986-06-28
JPH0317597Y2 (ja) * 1984-12-10 1991-04-12

Also Published As

Publication number Publication date
CH640999GA3 (ja) 1984-02-15
FR2489055B1 (ja) 1983-11-18
JPH0371672B2 (ja) 1991-11-14
FR2489055A1 (fr) 1982-02-26
GB2082806B (en) 1984-01-04
CH640999B (fr)
US4430007A (en) 1984-02-07
GB2082806A (en) 1982-03-10
DE3132304C2 (de) 1986-10-23
DE3132304A1 (de) 1982-05-27

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