JPH0371672B2 - - Google Patents

Info

Publication number
JPH0371672B2
JPH0371672B2 JP56132204A JP13220481A JPH0371672B2 JP H0371672 B2 JPH0371672 B2 JP H0371672B2 JP 56132204 A JP56132204 A JP 56132204A JP 13220481 A JP13220481 A JP 13220481A JP H0371672 B2 JPH0371672 B2 JP H0371672B2
Authority
JP
Japan
Prior art keywords
circuit
signal
value
pulse
coil
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.)
Expired - Lifetime
Application number
JP56132204A
Other languages
English (en)
Japanese (ja)
Other versions
JPS57172279A (en
Inventor
Uigeto Furidorin
Gyurin Iu
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.)
Ebauchesfabrik ETA AG
Original Assignee
Ebauchesfabrik ETA AG
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 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 JPS57172279A (en) 1982-10-23
JPH0371672B2 true JPH0371672B2 (en]) 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 (en])
JP (1) JPS57172279A (en])
CH (1) CH640999B (en])
DE (1) DE3132304C2 (en])
FR (1) FR2489055A1 (en])
GB (1) GB2082806B (en])

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH644989GA3 (en]) * 1981-03-18 1984-09-14
CH647129GA3 (en]) * 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 (en]) * 1983-09-16 1985-12-31
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
JPH0317597Y2 (en]) * 1984-12-10 1991-04-12
DE3772477D1 (de) * 1986-07-02 1991-10-02 Asulab Sa Verfahren und vorrichtung zur kontrolle eines schrittmotors.
CH673750B5 (en]) * 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
EP3106890B1 (en) * 2015-06-19 2025-08-13 Arabelle Solutions France 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

Family Cites Families (17)

* 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 (en]) * 1972-09-20 1976-09-15
JPS5542356B2 (en]) 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
US4129981A (en) 1976-02-06 1978-12-19 Citizen Watch Company Limited Electronic timepiece
US4158287A (en) 1976-08-12 1979-06-19 Citizen Watch Company Limited Driver circuit for electro-mechanical transducer
JPS53132381A (en) 1977-04-23 1978-11-18 Seiko Instr & Electronics Ltd Electronic watch
US4367049A (en) 1977-09-02 1983-01-04 Ebauches S.A. Driving device especially for a timepiece
JPS54155079A (en) 1978-05-26 1979-12-06 Seiko Instr & Electronics Ltd Magnetic field detector for electronic watch
CH616045B (fr) 1978-06-20 Ebauches Sa Procede pour reduire la consommation d'une piece d'horlogerie electronique et piece d'horlogerie electronique mettant en oeuvre ce procede.
JPS5515054A (en) 1978-07-19 1980-02-01 Seiko Instr & Electronics Ltd Electronic watch
US4283783A (en) 1978-11-28 1981-08-11 Citizen Watch Company Limited Drive control system for stepping motor
US4321521A (en) 1978-12-25 1982-03-23 Kabushiki Kaisha Daini Seikosha Detection device of electronic timepiece
US4351039A (en) 1979-01-08 1982-09-21 Jean-Claude Berney Timepiece with a detector and control circuit for a stepping motor
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

Also Published As

Publication number Publication date
FR2489055B1 (en]) 1983-11-18
JPS57172279A (en) 1982-10-23
GB2082806B (en) 1984-01-04
GB2082806A (en) 1982-03-10
CH640999B (fr)
US4430007A (en) 1984-02-07
FR2489055A1 (fr) 1982-02-26
DE3132304A1 (de) 1982-05-27
CH640999GA3 (en]) 1984-02-15
DE3132304C2 (de) 1986-10-23

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