CH647920GA3 - - Google Patents

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Publication number
CH647920GA3
CH647920GA3 CH241282A CH241282A CH647920GA3 CH 647920G A3 CH647920G A3 CH 647920GA3 CH 241282 A CH241282 A CH 241282A CH 241282 A CH241282 A CH 241282A CH 647920G A3 CH647920G A3 CH 647920GA3
Authority
CH
Switzerland
Prior art keywords
windings
rotor
cylindrical space
magnet
pole
Prior art date
Application number
CH241282A
Other languages
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
Priority to CH241282A priority Critical patent/CH647920GA3/fr
Priority to EP83810154A priority patent/EP0092522B1/en
Priority to DE8383810154T priority patent/DE3375841D1/en
Priority to JP58068471A priority patent/JPS58190271A/en
Priority to US06/486,658 priority patent/US4471284A/en
Publication of CH647920GA3 publication Critical patent/CH647920GA3/fr
Priority to HK221/93A priority patent/HK22193A/en

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
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K37/00—Motors with rotor rotating step by step and without interrupter or commutator driven by the rotor, e.g. stepping motors
    • H02K37/10—Motors with rotor rotating step by step and without interrupter or commutator driven by the rotor, e.g. stepping motors of permanent magnet type
    • H02K37/12—Motors with rotor rotating step by step and without interrupter or commutator driven by the rotor, e.g. stepping motors of permanent magnet type with stationary armatures and rotating magnets
    • H02K37/14—Motors with rotor rotating step by step and without interrupter or commutator driven by the rotor, e.g. stepping motors of permanent magnet type with stationary armatures and rotating magnets with magnets rotating within the armatures

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Control Of Stepping Motors (AREA)
  • Vehicle Body Suspensions (AREA)
  • Control Of Multiple Motors (AREA)
  • Electromechanical Clocks (AREA)

Abstract

The motor comprises a stator with three pole pieces having pole faces which define a cylindrical space, two windings which are magnetically coupled to the first and the second pole piece, and to the first and the third pole piece respectively, a rotor which is concentric with respect to the cylindrical space and which comprises a first permanent magnet, and a second permanent magnet coupled with the first magnet for holding the rotor, in the absence of any other influence, in a position in which the magnetic axis of the first magnet coincides with a rest axis. The field produced in the cylindrical space by the flow of a current in any one of the windings is at an obtuse angle to the rest axis. The rotor performs 360 DEG steps in response to pairs of current pulses, the first of which is applied to one of the windings and the second is applied to the other of the windings. Those pulses have always the same direction, and the order in which they are applied to the windings determines the direction of rotation of the rotor. The motor can be used in particular in an electronic timepiece.
CH241282A 1982-04-21 1982-04-21 CH647920GA3 (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
CH241282A CH647920GA3 (en) 1982-04-21 1982-04-21
EP83810154A EP0092522B1 (en) 1982-04-21 1983-04-14 Reversible step motor and method of controlling the same
DE8383810154T DE3375841D1 (en) 1982-04-21 1983-04-14 Reversible step motor and method of controlling the same
JP58068471A JPS58190271A (en) 1982-04-21 1983-04-20 Reversible stepping motor
US06/486,658 US4471284A (en) 1982-04-21 1983-04-20 Reversible stepping motor
HK221/93A HK22193A (en) 1982-04-21 1993-03-11 Reversible step motor and method of controlling the same

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH241282A CH647920GA3 (en) 1982-04-21 1982-04-21

Publications (1)

Publication Number Publication Date
CH647920GA3 true CH647920GA3 (en) 1985-02-28

Family

ID=4233195

Family Applications (1)

Application Number Title Priority Date Filing Date
CH241282A CH647920GA3 (en) 1982-04-21 1982-04-21

Country Status (6)

Country Link
US (1) US4471284A (en)
EP (1) EP0092522B1 (en)
JP (1) JPS58190271A (en)
CH (1) CH647920GA3 (en)
DE (1) DE3375841D1 (en)
HK (1) HK22193A (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2585901A3 (en) * 1985-02-28 1987-02-06 Ebauchesfabrik Eta Ag METHOD AND DEVICE FOR CONTROLLING A TWO-COIL MOTOR
CH673751B5 (en) * 1988-05-11 1990-10-15 Asulab Sa
JP3724048B2 (en) * 1995-11-06 2005-12-07 株式会社デンソー L load drive
CN102043378B (en) * 2009-10-21 2012-07-04 深圳市茂智电子科技有限公司 Reverse drive method for pointer type electronic timekeeper stepping motor
JP7295650B2 (en) 2019-02-06 2023-06-21 セイコーインスツル株式会社 Clock and motor control method

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3958167A (en) * 1972-12-04 1976-05-18 Citizen Watch Co., Ltd. Pulse motor
GB1451359A (en) * 1973-11-30 1976-09-29 Citizen Watch Co Ltd Pulse motor driven circuit
JPS5248012A (en) * 1975-10-16 1977-04-16 Seiko Instr & Electronics Ltd Reversible miniature step motor
GB2007409B (en) * 1977-09-02 1982-04-15 Ebauches Sa Driving device especially for a timepiece
GB2054978B (en) * 1979-07-06 1984-06-13 Ebauches Sa Electromagnetic motor rotatable in either direction
CH625646A5 (en) * 1979-07-06 1981-09-30 Ebauches Sa Electromagnetic motor with two directions of rotation
FR2466131A1 (en) * 1979-09-25 1981-03-27 Suisse Horlogerie BIPOLAR SINGLE-PHASE STEP MOTOR WITH TWO DIRECTION OF ROTATION
WO1981001205A1 (en) * 1979-10-18 1981-04-30 Portescap Step by step micromotor for a clockwork
CH638652B (en) * 1980-12-09 Fontainemelon Horlogerie STEP-BY-STEP MOTOR WITH ROTOR POSITIONING MAGNET.
CH645237GA3 (en) * 1981-12-18 1984-09-28

Also Published As

Publication number Publication date
JPS58190271A (en) 1983-11-07
US4471284A (en) 1984-09-11
DE3375841D1 (en) 1988-04-07
EP0092522B1 (en) 1988-03-02
JPH0258856B2 (en) 1990-12-10
HK22193A (en) 1993-03-19
EP0092522A1 (en) 1983-10-26

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