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CH647383GA3 - - Google Patents

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Publication number
CH647383GA3
CH647383GA3 CH72581A CH72581A CH647383GA3 CH 647383G A3 CH647383G A3 CH 647383GA3 CH 72581 A CH72581 A CH 72581A CH 72581 A CH72581 A CH 72581A CH 647383G A3 CH647383G A3 CH 647383GA3
Authority
CH
Switzerland
Prior art keywords
coil
current
voltage
motor
reference value
Prior art date
Application number
CH72581A
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 CH72581A priority Critical patent/CH647383GA3/fr
Priority to EP82810023A priority patent/EP0057663B1/en
Priority to DE8282810023T priority patent/DE3280331D1/en
Priority to JP57015007A priority patent/JPH0611197B2/en
Priority to US06/345,951 priority patent/US4439717A/en
Publication of CH647383GA3 publication Critical patent/CH647383GA3/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)
  • Control Of Stepping Motors (AREA)
  • Electromechanical Clocks (AREA)
  • Adjustment Of Camera Lenses (AREA)

Abstract

A control device for a stepping motor provided with a coil and a rotor performing a rotary movement when a current passes through the coil, comprising means for producing a plurality of time base signals, means for producing pulses for controlling the motor in response to said time base signals, means responsive to the control pulses for supplying the motor while maintaining the current in the coil at a substantially constant and given value. The device also comprises means for analyzing the voltage signal present on the coil or a signal which is representative thereof, and for supplying data concerning the voltage induced in the coil by the rotor movement. The motor supply means may include switching means for connecting the coil to a supply voltage source and for short-circuiting the coil, and means for periodically comparing the coil current to a reference value, during each control pulse, and supplying a control signal for controlling the switching means to short-circuit the coil when a comparison indicates the current exceeds the reference value, and to apply voltage to the coil in the opposite case, until the following comparison operation. This maintains the mean value of the current at a reference value during the control pulses to provide a high-efficiency power supply system. At the coil terminals logic information is derived concerning the induced voltage which can be easily analyzed and used by logic circuits.
CH72581A 1981-02-04 1981-02-04 CH647383GA3 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
CH72581A CH647383GA3 (en) 1981-02-04 1981-02-04
EP82810023A EP0057663B1 (en) 1981-02-04 1982-01-21 Control device for stepping motor
DE8282810023T DE3280331D1 (en) 1981-02-04 1982-01-21 CONTROL DEVICE FOR A STEPPER MOTOR.
JP57015007A JPH0611197B2 (en) 1981-02-04 1982-02-03 Stepping motor controller
US06/345,951 US4439717A (en) 1981-02-04 1982-02-04 Control device for a stepping motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH72581A CH647383GA3 (en) 1981-02-04 1981-02-04

Publications (1)

Publication Number Publication Date
CH647383GA3 true CH647383GA3 (en) 1985-01-31

Family

ID=4193723

Family Applications (1)

Application Number Title Priority Date Filing Date
CH72581A CH647383GA3 (en) 1981-02-04 1981-02-04

Country Status (5)

Country Link
US (1) US4439717A (en)
EP (1) EP0057663B1 (en)
JP (1) JPH0611197B2 (en)
CH (1) CH647383GA3 (en)
DE (1) DE3280331D1 (en)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4506206A (en) * 1982-01-21 1985-03-19 U.S. Philips Corporation Method of and circuit arrangement for controlling the torque of a stepping motor
CH653850GA3 (en) * 1983-08-12 1986-01-31
CH653206GA3 (en) * 1983-09-16 1985-12-31
CH656776GA3 (en) * 1984-07-27 1986-07-31
GB8508402D0 (en) * 1985-03-30 1985-05-09 Bsh Electronics Ltd Signal separating device
IT1182511B (en) * 1985-07-12 1987-10-05 Marelli Autronica CONSTANT CURRENT CONTROL CIRCUIT FOR A SINGLE POLE STEP MOTOR, PARTICULARLY FOR USE ON BOARD MOTOR VEHICLES
US4705997A (en) * 1986-02-21 1987-11-10 United Technologies Automotive, Inc. Bidirectional motor drive circuit
DE3772477D1 (en) * 1986-07-02 1991-10-02 Asulab Sa METHOD AND DEVICE FOR CONTROLLING A STEPPING MOTOR.
US4761598A (en) * 1987-06-15 1988-08-02 Lovrenich Rodger T Torque-angle stabilized servo motor drive
US5237254A (en) * 1988-02-12 1993-08-17 Eta Sa Fabriques D'ebauches Control circuit for a stepping motor
CH673751B5 (en) * 1988-05-11 1990-10-15 Asulab Sa
US4901000A (en) * 1989-02-23 1990-02-13 General Motors Corporation Variable rate stepper motor driver circuit and method
ATE92653T1 (en) * 1990-02-23 1993-08-15 Detra Sa SUPPLY METHOD FOR MONOPHASE STEPPER MOTOR.
FR2668866B1 (en) * 1990-11-07 1992-12-31 Ebauchesfabrik Eta Ag METHOD FOR CONTROLLING A STEPPER MOTOR AND DEVICE FOR CARRYING OUT SAID METHOD.
US6987824B1 (en) * 2000-09-21 2006-01-17 International Business Machines Corporation Method and system for clock/data recovery for self-clocked high speed interconnects
JP2003344565A (en) * 2002-05-29 2003-12-03 Seiko Instruments Inc Electronic clock
US8063603B2 (en) 2008-01-22 2011-11-22 Cypress Semiconductor Corporation System and method for using a stepper motor as a rotary sensor
US11237521B2 (en) * 2018-01-17 2022-02-01 Seiko Instruments Inc. Timepiece movement and timepiece

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5319944B2 (en) * 1971-09-25 1978-06-23
JPS5542356B2 (en) * 1972-12-22 1980-10-30
JPS5292560A (en) * 1976-01-29 1977-08-04 Seiko Instr & Electronics Ltd Switch box drive pulse width control circuit for electronic clocks
US4158287A (en) * 1976-08-12 1979-06-19 Citizen Watch Company Limited Driver circuit for electro-mechanical transducer
GB2064834B (en) * 1977-09-26 1982-12-08 Citizen Watch Co Ltd Drive system for stepping motor in a timepiece
JPS5475520A (en) * 1977-11-30 1979-06-16 Seiko Instr & Electronics Ltd Operation detecting circuit of step motor
JPS5477169A (en) * 1977-12-02 1979-06-20 Seiko Instr & Electronics Ltd Electronic watch
US4283783A (en) * 1978-11-28 1981-08-11 Citizen Watch Company Limited Drive control system for stepping motor
FR2459579A1 (en) * 1979-06-21 1981-01-09 Suisse Horlogerie ADVANCE DETECTOR OF A STEP BY STEP MOTOR
FR2461399A1 (en) * 1979-07-09 1981-01-30 Suisse Horlogerie POSITION DETECTOR OF A STEP BY STEP MOTOR
JPS5612577A (en) * 1979-07-13 1981-02-06 Seiko Instr & Electronics Ltd Electronic clock
US4286202A (en) * 1979-07-16 1981-08-25 International Business Machines Corp. Electronic damping of stepper motor
FR2464478A1 (en) * 1979-09-04 1981-03-06 Suisse Horlogerie ADVANCE DETECTOR OF A STEP BY STEP MOTOR
GB2077002B (en) * 1980-05-21 1983-10-26 Berney Sa Jean Claude Electronic timepiece comprising a control circuit of the motor

Also Published As

Publication number Publication date
US4439717A (en) 1984-03-27
EP0057663B1 (en) 1991-05-08
DE3280331D1 (en) 1991-06-13
JPS57148592A (en) 1982-09-13
EP0057663A2 (en) 1982-08-11
JPH0611197B2 (en) 1994-02-09
EP0057663A3 (en) 1982-08-18

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