CH632128GA3 - - Google Patents

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Publication number
CH632128GA3
CH632128GA3 CH809979A CH809979A CH632128GA3 CH 632128G A3 CH632128G A3 CH 632128GA3 CH 809979 A CH809979 A CH 809979A CH 809979 A CH809979 A CH 809979A CH 632128G A3 CH632128G A3 CH 632128GA3
Authority
CH
Switzerland
Prior art keywords
transistors
motor
motors
pairs
hand
Prior art date
Application number
CH809979A
Other languages
French (fr)
Other versions
CH632128B (en
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
Publication of CH632128B publication Critical patent/CH632128B/en
Application filed filed Critical
Priority to CH809979A priority Critical patent/CH632128B/en
Priority to FR8018856A priority patent/FR2465358A1/en
Priority to DE19803032838 priority patent/DE3032838A1/en
Priority to GB8028202A priority patent/GB2058414B/en
Priority to JP12249680A priority patent/JPS5646697A/en
Publication of CH632128GA3 publication Critical patent/CH632128GA3/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
    • G04C3/146—Electromechanical clocks or watches independent of other time-pieces and in which the movement is maintained by electric means incorporating a stepping motor incorporating two or more stepping motors or rotors

Landscapes

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

Abstract

Apparatus for controlling an electronic time piece having two motors M1, M2 comprises only six power transistors T13 to T18 divided into pairs of transistors of opposite conductivity type, the transistors of each pair being connected in series with each other in a respective switching circuit connected between the supply terminals (+,-). The first motor M1 is connected between the middle connection points of the pairs T13/T14 and T17/T18 and the second motor M2 between the middle connection points of the pairs T17/T18 and T15/T16. The pair of transistors T17/T18 is thus common to the two motors. The circuit provides alternating pulses to each motor M1, M2 or may be used to energize two separate windings of a single motor, for reverse and forward drive. If two motors are used, one may drive a seconds hand and a minutes hand, and the other an hours hand and a date indicator. Opposite conductivity type FETs may be used instead of bipolar transistors. <IMAGE>
CH809979A 1979-09-07 1979-09-07 CONTROL DEVICE FOR TWO STEP MOTORS IN AN ELECTRONIC CLOCK PART. CH632128B (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
CH809979A CH632128B (en) 1979-09-07 1979-09-07 CONTROL DEVICE FOR TWO STEP MOTORS IN AN ELECTRONIC CLOCK PART.
FR8018856A FR2465358A1 (en) 1979-09-07 1980-08-29 DEVICE FOR CONTROLLING TWO STEP-BY-STEP MOTORS IN AN ELECTRONIC WATCH WORKPIECE
DE19803032838 DE3032838A1 (en) 1979-09-07 1980-08-30 DEVICE FOR CONTROLLING TWO STEPPING MOTOR COILS IN AN ELECTRONIC TIMING DEVICE
GB8028202A GB2058414B (en) 1979-09-07 1980-09-01 Apparatus for controlling stepping motors in electronic time pieces
JP12249680A JPS5646697A (en) 1979-09-07 1980-09-05 Device for controlling winding of two motors

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH809979A CH632128B (en) 1979-09-07 1979-09-07 CONTROL DEVICE FOR TWO STEP MOTORS IN AN ELECTRONIC CLOCK PART.

Publications (2)

Publication Number Publication Date
CH632128B CH632128B (en)
CH632128GA3 true CH632128GA3 (en) 1982-09-30

Family

ID=4335141

Family Applications (1)

Application Number Title Priority Date Filing Date
CH809979A CH632128B (en) 1979-09-07 1979-09-07 CONTROL DEVICE FOR TWO STEP MOTORS IN AN ELECTRONIC CLOCK PART.

Country Status (5)

Country Link
JP (1) JPS5646697A (en)
CH (1) CH632128B (en)
DE (1) DE3032838A1 (en)
FR (1) FR2465358A1 (en)
GB (1) GB2058414B (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0048217A1 (en) * 1980-09-12 1982-03-24 Compagnie des Montres Longines, Francillon S.A. Electronic timepiece
JPS592593A (en) * 1982-06-25 1984-01-09 Sony Corp Normal/reverse circuit for plural motors
CH650125GA3 (en) * 1983-06-29 1985-07-15
WO2000036474A1 (en) * 1998-12-14 2000-06-22 Seiko Epson Corporation Electronic device, and method for controlling the electronic device
DE10007201A1 (en) * 2000-02-17 2001-08-23 Zeiss Carl Jena Gmbh Procedure for synchronous control of several stepper motors
US6914855B2 (en) 2002-09-27 2005-07-05 Timex Group B.V. Circuit for driving motor coils in stepping motors
CN102263535A (en) * 2010-05-28 2011-11-30 飞思卡尔半导体公司 Stepper motor controller and stepper motor control method

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1451359A (en) * 1973-11-30 1976-09-29 Citizen Watch Co Ltd Pulse motor driven circuit
JPS52125712A (en) * 1976-04-13 1977-10-21 Sanyo Electric Co Ltd Control circuit of electric motor
CH613837B (en) * 1977-06-14 Suisse Horlogerie ELECTRONIC WATCH WITH MECHANICAL DISPLAY.
SE7807961L (en) * 1977-07-20 1979-01-21 Janome Sewing Machine Co Ltd DRIVING DEVICE FOR SEWING MACHINE PULSE ENGINE

Also Published As

Publication number Publication date
GB2058414B (en) 1983-04-13
FR2465358B1 (en) 1982-12-10
GB2058414A (en) 1981-04-08
CH632128B (en)
DE3032838A1 (en) 1981-04-02
FR2465358A1 (en) 1981-03-20
JPS5646697A (en) 1981-04-27

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Legal Events

Date Code Title Description
PL Patent ceased