CH653206GA3 - - Google Patents

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Publication number
CH653206GA3
CH653206GA3 CH505083A CH505083A CH653206GA3 CH 653206G A3 CH653206G A3 CH 653206GA3 CH 505083 A CH505083 A CH 505083A CH 505083 A CH505083 A CH 505083A CH 653206G A3 CH653206G A3 CH 653206GA3
Authority
CH
Switzerland
Prior art keywords
motor
voltage
energy
eio
resistance
Prior art date
Application number
CH505083A
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 CH505083A priority Critical patent/CH653206GA3/fr
Priority to US06/649,338 priority patent/US4590412A/en
Priority to EP84110852A priority patent/EP0140089B1/en
Priority to DE8484110852T priority patent/DE3475236D1/en
Priority to JP59190733A priority patent/JPS6088385A/en
Publication of CH653206GA3 publication Critical patent/CH653206GA3/fr

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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)
  • Vehicle Body Suspensions (AREA)
  • Valve Device For Special Equipments (AREA)

Abstract

A method of controlling a stepping motor comprises supplying the motor with a predetermined quantity of energy Eio from whence there will result an automatic adaptation of the width of the motor drive pulse to the voltage Uo at the motor terminals and the resistance Ri of the energy source. At the moment when the internal energy Ei(t) supplied to the motor, as defined by the integral over a time period of the product of Uo-RI and the current It circulating in the motor winding, becomes equal to Eio the drive pulse is cut off (R is the resistance of the motor winding). The circuit for practicing the method according to the invention includes means for measuring the voltage Uo and the energizing current I(t), means for obtaining the difference Uo-RI, a multiplier for forming the product (Uo-RI)I(t) and an integrator the output of which provides a voltage proportional to the internal energy Ei(t).
CH505083A 1983-09-16 1983-09-16 CH653206GA3 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
CH505083A CH653206GA3 (en) 1983-09-16 1983-09-16
US06/649,338 US4590412A (en) 1983-09-16 1984-09-11 Method of energizing a stepping motor
EP84110852A EP0140089B1 (en) 1983-09-16 1984-09-12 Process for feeding a stepping motor
DE8484110852T DE3475236D1 (en) 1983-09-16 1984-09-12 Process for feeding a stepping motor
JP59190733A JPS6088385A (en) 1983-09-16 1984-09-13 Method of driving stepping motor for watch

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH505083A CH653206GA3 (en) 1983-09-16 1983-09-16

Publications (1)

Publication Number Publication Date
CH653206GA3 true CH653206GA3 (en) 1985-12-31

Family

ID=4287109

Family Applications (1)

Application Number Title Priority Date Filing Date
CH505083A CH653206GA3 (en) 1983-09-16 1983-09-16

Country Status (5)

Country Link
US (1) US4590412A (en)
EP (1) EP0140089B1 (en)
JP (1) JPS6088385A (en)
CH (1) CH653206GA3 (en)
DE (1) DE3475236D1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3772477D1 (en) * 1986-07-02 1991-10-02 Asulab Sa METHOD AND DEVICE FOR CONTROLLING A STEPPING MOTOR.
US4910543A (en) 1988-02-08 1990-03-20 Canon Kabushiki Kaisha Camera
CH672043B5 (en) * 1988-02-12 1990-04-30 Ebauchesfabrik Eta Ag
EP2251972B1 (en) * 2009-05-14 2014-07-02 STMicroelectronics Srl Method and hardware system for driving a stepper motor in feed-forward voltage mode

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0057663A2 (en) * 1981-02-04 1982-08-11 Koninklijke Philips Electronics N.V. Control device for stepping motor
EP0060806A1 (en) * 1981-03-18 1982-09-22 Asulab S.A. Method of reducing the power consumption of a stepping motor, and device for carrying out this method
EP0077293A1 (en) * 1981-10-02 1983-04-20 Asulab S.A. Process and device for controlling a stepping motor in a clock mechanism

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH616045B (en) * 1978-06-20 Ebauches Sa PROCESS FOR REDUCING THE CONSUMPTION OF AN ELECTRONIC WATCH PART AND ELECTRONIC WATCH PART IMPLEMENTING THIS PROCESS.
FR2464478A1 (en) * 1979-09-04 1981-03-06 Suisse Horlogerie ADVANCE DETECTOR OF A STEP BY STEP MOTOR
CH641921B (en) * 1980-02-19 Berney Sa Jean Claude WATCH PART WITH A STEP MOTOR CONTROL DEVICE.
CH640999B (en) * 1980-08-25 Ebauchesfabrik Eta Ag METHOD AND DEVICE FOR CONTROLLING A STEP MOTOR OF AN ELECTRONIC CLOCK PART.

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0057663A2 (en) * 1981-02-04 1982-08-11 Koninklijke Philips Electronics N.V. Control device for stepping motor
EP0060806A1 (en) * 1981-03-18 1982-09-22 Asulab S.A. Method of reducing the power consumption of a stepping motor, and device for carrying out this method
EP0077293A1 (en) * 1981-10-02 1983-04-20 Asulab S.A. Process and device for controlling a stepping motor in a clock mechanism

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
BULLETIN ANNUEL DE LA SOCIETE SUISSE DE CHRONOMETRIE, vol. 10, 1981, NEUCHATEL (CH) *

Also Published As

Publication number Publication date
DE3475236D1 (en) 1988-12-22
JPH038712B2 (en) 1991-02-06
EP0140089B1 (en) 1988-11-17
EP0140089A1 (en) 1985-05-08
US4590412A (en) 1986-05-20
JPS6088385A (en) 1985-05-18

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