CH646031GA3 - - Google Patents

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Publication number
CH646031GA3
CH646031GA3 CH576580A CH576580A CH646031GA3 CH 646031G A3 CH646031G A3 CH 646031GA3 CH 576580 A CH576580 A CH 576580A CH 576580 A CH576580 A CH 576580A CH 646031G A3 CH646031G A3 CH 646031GA3
Authority
CH
Switzerland
Prior art keywords
stepping motor
driving
power source
detecting
circuit
Prior art date
Application number
CH576580A
Other languages
English (en)
French (fr)
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 filed Critical
Publication of CH646031GA3 publication Critical patent/CH646031GA3/fr

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)
  • Electromechanical Clocks (AREA)
  • Control Of Stepping Motors (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Electric Clocks (AREA)
CH576580A 1979-09-18 1980-07-28 CH646031GA3 (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11979979A JPS5643575A (en) 1979-09-18 1979-09-18 Electronic clock

Publications (1)

Publication Number Publication Date
CH646031GA3 true CH646031GA3 (it) 1984-11-15

Family

ID=14770506

Family Applications (1)

Application Number Title Priority Date Filing Date
CH576580A CH646031GA3 (it) 1979-09-18 1980-07-28

Country Status (6)

Country Link
US (1) US4433401A (it)
JP (1) JPS5643575A (it)
CH (1) CH646031GA3 (it)
DE (1) DE3034395C2 (it)
FR (1) FR2466132A1 (it)
GB (1) GB2059649B (it)

Families Citing this family (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3214543A1 (de) * 1981-04-23 1982-11-11 Kabushiki Kaisha Suwa Seikosha, Tokyo Elektronische analoguhr
CH646576GA3 (it) * 1981-10-02 1984-12-14
CH646575GA3 (it) * 1981-10-02 1984-12-14
JPS5886479A (ja) * 1981-11-19 1983-05-24 Shimauchi Seiki Kk アナログ電子時計
DE3149995C1 (de) * 1981-12-17 1983-05-05 Gebrüder Junghans GmbH, 7230 Schramberg Verfahren zum Erstellen eines Uhrenschrittmotor-Stators und Stator eines Uhrenschrittmotors
JPS5913971A (ja) * 1982-07-15 1984-01-24 Seiko Epson Corp アナログ電子時計
CH653852GA3 (it) * 1984-02-29 1986-01-31
JPS62237384A (ja) * 1986-04-08 1987-10-17 Seiko Instr & Electronics Ltd 充電機能付きアナログ電子時計
WO1990014625A1 (en) * 1989-05-26 1990-11-29 Seiko Epson Corporation Power source circuit
JP3432470B2 (ja) * 1992-03-18 2003-08-04 シチズン時計株式会社 電子機器
DE4305981C2 (de) * 1993-02-26 1999-03-11 Bruker Franzen Analytik Gmbh Verfahren und Vorrichtung zur quantitativen Analyse von Gasgemischen mittels resonanter Lasermassenspektrometrie bei stark fluktuierenden Meßsignalen
US5889734A (en) * 1994-04-06 1999-03-30 Citizen Watch Co., Ltd. Electronic timepiece
US5933392A (en) * 1995-09-20 1999-08-03 Citizen Watch Co., Ltd. Electronic watch
JP3541601B2 (ja) * 1997-02-07 2004-07-14 セイコーエプソン株式会社 ステッピングモーターの制御装置、その制御方法および計時装置
JPH11127595A (ja) * 1997-08-11 1999-05-11 Seiko Epson Corp 電子機器
US5877608A (en) * 1997-11-21 1999-03-02 Philips Electronics North America Corporation Current regulated multiphase motor driver with a common current sense element
EP1046969B1 (fr) * 1999-04-23 2007-12-12 ETA SA Manufacture Horlogère Suisse Procédé de commande d'un moteur pas à pas et dispositif pour la mise en oeuvre de ce procédé
CA2302171A1 (en) 1999-04-23 2000-10-23 Eta Sa Fabriques D'ebauches Method for controlling a stepping motor and device for implementing such method
JP2010220408A (ja) * 2009-03-17 2010-09-30 Seiko Instruments Inc ステッピングモータ制御回路及びアナログ電子時計
JP2010256137A (ja) * 2009-04-23 2010-11-11 Seiko Instruments Inc ステッピングモータ制御回路及びアナログ電子時計
KR200454248Y1 (ko) 2009-06-04 2011-06-23 한길용 스테핑 모터 제어 장치
JP2011234604A (ja) * 2010-04-06 2011-11-17 Seiko Instruments Inc ステッピングモータ制御回路及びアナログ電子時計

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4158287A (en) * 1976-08-12 1979-06-19 Citizen Watch Company Limited Driver circuit for electro-mechanical transducer
JPS5345575A (en) * 1976-10-06 1978-04-24 Seiko Epson Corp Electronic wristwatch
US4107595A (en) * 1977-01-24 1978-08-15 Teletype Corporation Current control system for a stepping motor
JPS53132386A (en) * 1977-04-23 1978-11-18 Seiko Instr & Electronics Ltd Electronic watch
JPS53132384A (en) * 1977-04-23 1978-11-18 Seiko Instr & Electronics Ltd Electronic watch
GB1602898A (en) * 1977-04-26 1981-11-18 Suwa Seikosha Kk Circuit for detecting a voltage
US4140955A (en) * 1977-05-12 1979-02-20 Fluke Trendar Corporation Stepping motor drive method and apparatus
JPS5413378A (en) * 1977-07-01 1979-01-31 Citizen Watch Co Ltd Electronic watch
GB2006995B (en) * 1977-09-26 1982-11-17 Citizen Watch Co Ltd Drive system for pulse motor
DE2749141A1 (de) * 1977-11-03 1979-05-10 Quarz Zeit Ag Elektrische uhr
JPS5477169A (en) * 1977-12-02 1979-06-20 Seiko Instr & Electronics Ltd Electronic watch
CH616044B (de) * 1977-12-16 Bulova Watch Co Inc Elektronische kleinuhr.
CH616813B (fr) * 1977-12-28 Ebauches Sa Piece d'horlogerie electronique avec systeme de detection de fin de vie des piles.
US4295083A (en) * 1979-07-02 1981-10-13 The Superior Electric Company Pulsed energy stepping motor power control unit
JPS5612577A (en) * 1979-07-13 1981-02-06 Seiko Instr & Electronics Ltd Electronic clock

Also Published As

Publication number Publication date
DE3034395A1 (de) 1981-04-16
GB2059649B (en) 1983-05-05
GB2059649A (en) 1981-04-23
JPS5643575A (en) 1981-04-22
FR2466132A1 (fr) 1981-03-27
US4433401A (en) 1984-02-21
DE3034395C2 (de) 1986-04-10

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