CH653850GA3 - - Google Patents

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Publication number
CH653850GA3
CH653850GA3 CH441283A CH441283A CH653850GA3 CH 653850G A3 CH653850G A3 CH 653850GA3 CH 441283 A CH441283 A CH 441283A CH 441283 A CH441283 A CH 441283A CH 653850G A3 CH653850G A3 CH 653850GA3
Authority
CH
Switzerland
Prior art keywords
circuit
missed
effected
rotor
steps
Prior art date
Application number
CH441283A
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 CH441283A priority Critical patent/CH653850GA3/fr
Priority to US06/636,426 priority patent/US4551665A/en
Priority to EP84109303A priority patent/EP0135104B1/en
Priority to DE8484109303T priority patent/DE3467645D1/en
Priority to JP59167970A priority patent/JPS6059995A/en
Publication of CH653850GA3 publication Critical patent/CH653850GA3/fr
Priority to HK322/93A priority patent/HK32293A/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
    • 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)

Abstract

The method involves supplying to the motor drive pulses generated by a control circuit, determining by means of a measurement circuit a physical magnitude representative of the motion of the rotor, interrupting the drive pulse at a given instant defined by a calculating circuit according to the time taken by the physical magnitude to reach, in a comparator, a reference level, controlling by means of a missed step detecting circuit whether or not the rotor has effected a step, retrieving if need be a non-effected step, summing the number of missed or non-effected steps in a counting circuit, and modifying in a reference circuit the reference level depending on the number of steps that have been missed in a given period of time. The device for putting this method into operation enables the motor to operate under optimal security and energy consumption conditions and can be used to advantage in timepieces.
CH441283A 1983-08-12 1983-08-12 CH653850GA3 (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
CH441283A CH653850GA3 (en) 1983-08-12 1983-08-12
US06/636,426 US4551665A (en) 1983-08-12 1984-07-31 Method of and a device for controlling a stepping motor
EP84109303A EP0135104B1 (en) 1983-08-12 1984-08-06 Method and device for the control of a stepping motor
DE8484109303T DE3467645D1 (en) 1983-08-12 1984-08-06 Method and device for the control of a stepping motor
JP59167970A JPS6059995A (en) 1983-08-12 1984-08-13 Method and device for controlling stepping motor
HK322/93A HK32293A (en) 1983-08-12 1993-04-01 Method and device for the control of a stepping motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH441283A CH653850GA3 (en) 1983-08-12 1983-08-12

Publications (1)

Publication Number Publication Date
CH653850GA3 true CH653850GA3 (en) 1986-01-31

Family

ID=4275657

Family Applications (1)

Application Number Title Priority Date Filing Date
CH441283A CH653850GA3 (en) 1983-08-12 1983-08-12

Country Status (6)

Country Link
US (1) US4551665A (en)
EP (1) EP0135104B1 (en)
JP (1) JPS6059995A (en)
CH (1) CH653850GA3 (en)
DE (1) DE3467645D1 (en)
HK (1) HK32293A (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4791343A (en) * 1987-08-31 1988-12-13 Allied-Signal Inc. Stepper motor shaft position sensor
US4851755A (en) * 1988-03-01 1989-07-25 Ampex Corporation Low power stepper motor drive system and method
JP3256342B2 (en) * 1993-08-04 2002-02-12 ティーアールダブリュ オートモーティブ ジャパン株式会社 Stepping motor step-out detection device
DE29609570U1 (en) * 1996-05-29 1996-10-24 Saia Ag, Murten Circuit for detecting the dropping of a stepper or synchronous motor
JP3541601B2 (en) * 1997-02-07 2004-07-14 セイコーエプソン株式会社 Control device for stepping motor, control method thereof, and timing device
US6586898B2 (en) 2001-05-01 2003-07-01 Magnon Engineering, Inc. Systems and methods of electric motor control
JP4652610B2 (en) * 2001-05-30 2011-03-16 セイコーインスツル株式会社 Step motor rotation control device
JP2002365379A (en) * 2001-06-11 2002-12-18 Seiko Instruments Inc Analog electronic clock
ES2425889T3 (en) * 2010-04-27 2013-10-17 Swiss Timing Ltd. Timing system of a sports competition that has two timing devices
JP7219094B2 (en) * 2019-01-11 2023-02-07 セイコーインスツル株式会社 ANALOG ELECTRONIC WATCH, STEPPING MOTOR CONTROL DEVICE, AND CONTROL METHOD FOR ANALOG ELECTRONIC WATCH

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5477169A (en) * 1977-12-02 1979-06-20 Seiko Instr & Electronics Ltd Electronic watch
JPS55127897A (en) * 1979-03-26 1980-10-03 Janome Sewing Mach Co Ltd Pulse-motor-driving circuit
FR2459579A1 (en) * 1979-06-21 1981-01-09 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
JPS57106397A (en) * 1980-12-18 1982-07-02 Seiko Instr & Electronics Ltd Driving device for stepping motor
CH647383GA3 (en) * 1981-02-04 1985-01-31
CH644989GA3 (en) * 1981-03-18 1984-09-14

Also Published As

Publication number Publication date
JPS6059995A (en) 1985-04-06
DE3467645D1 (en) 1987-12-23
JPH0121719B2 (en) 1989-04-21
US4551665A (en) 1985-11-05
EP0135104B1 (en) 1987-11-19
EP0135104A1 (en) 1985-03-27
HK32293A (en) 1993-04-08

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