CH646576GA3 - - Google Patents

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Publication number
CH646576GA3
CH646576GA3 CH634181A CH634181A CH646576GA3 CH 646576G A3 CH646576G A3 CH 646576GA3 CH 634181 A CH634181 A CH 634181A CH 634181 A CH634181 A CH 634181A CH 646576G A3 CH646576G A3 CH 646576GA3
Authority
CH
Switzerland
Prior art keywords
value
power supply
supply source
electromotive force
internal resistance
Prior art date
Application number
CH634181A
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 CH634181A priority Critical patent/CH646576GA3/fr
Priority to EP82810397A priority patent/EP0077293B1/en
Priority to DE8282810397T priority patent/DE3276087D1/en
Priority to US06/426,316 priority patent/US4467256A/en
Priority to JP57171103A priority patent/JPS58144770A/en
Publication of CH646576GA3 publication Critical patent/CH646576GA3/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)

Abstract

The present invention concerns a method and a device for controlling a stepping motor of a timepiece, which permit the power of each drive pulse to be adapted to the value of the electromotive force (V) and/or the internal resistance (R*) of the power supply source (10). In accordance with the invention, at a given moment, a value of a chopping rate (Ha) is determined in dependence on the value of the electromotive force V and/or the internal resistance R* of the power supply source (10), said value being stored, and the chopping rate of each control pulse being adjusted to the stored value. The control device comprises means (13) for supplying a chopping signal (M) to a drive circuit (12) of the motor (11). The chopping rate is determined by information contained in a memory (14). The stored information is periodically corrected in dependence on the value of the electromotive force (V) and/or the internal resistance (R*) of the power supply source (10).
CH634181A 1981-10-02 1981-10-02 CH646576GA3 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
CH634181A CH646576GA3 (en) 1981-10-02 1981-10-02
EP82810397A EP0077293B1 (en) 1981-10-02 1982-09-23 Process and device for controlling a stepping motor in a clock mechanism
DE8282810397T DE3276087D1 (en) 1981-10-02 1982-09-23 Process and device for controlling a stepping motor in a clock mechanism
US06/426,316 US4467256A (en) 1981-10-02 1982-09-29 Method and device for controlling a stepping motor of a timepiece
JP57171103A JPS58144770A (en) 1981-10-02 1982-10-01 Method and device for controlling stepping-motor of watch

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH634181A CH646576GA3 (en) 1981-10-02 1981-10-02

Publications (1)

Publication Number Publication Date
CH646576GA3 true CH646576GA3 (en) 1984-12-14

Family

ID=4308043

Family Applications (1)

Application Number Title Priority Date Filing Date
CH634181A CH646576GA3 (en) 1981-10-02 1981-10-02

Country Status (5)

Country Link
US (1) US4467256A (en)
EP (1) EP0077293B1 (en)
JP (1) JPS58144770A (en)
CH (1) CH646576GA3 (en)
DE (1) DE3276087D1 (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH653206GA3 (en) * 1983-09-16 1985-12-31
CH656776GA3 (en) * 1984-07-27 1986-07-31
JPS62237384A (en) * 1986-04-08 1987-10-17 Seiko Instr & Electronics Ltd Analog electronic timepiece with charging function
CH672572B5 (en) * 1988-06-01 1990-06-15 Detra Sa
US5247235A (en) * 1988-06-01 1993-09-21 Detra Sa Method of supplying power to a single phase step motor
JPH0332396A (en) * 1989-06-28 1991-02-12 Sharp Corp Stepping motor driver
US5105140A (en) * 1990-01-11 1992-04-14 Baxer International Inc. Peristaltic pump motor drive
US5457365A (en) * 1992-12-04 1995-10-10 Integral Peripherals, Inc. Disk drive power management system
IT1306069B1 (en) * 1998-11-20 2001-05-29 Zapi Spa FEEDING PROCEDURE FOR ASYNCHRONOUS MOTORS WITH INVERTER, IN PARTICULAR FOR BATTERY VEHICLES
JP6145274B2 (en) * 2013-01-18 2017-06-07 日立オートモティブシステムズ株式会社 Brushless motor drive device
US20220385223A1 (en) * 2021-05-25 2022-12-01 Global Mixed-Mode Technology Inc. Motor controller

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3812413A (en) * 1972-03-06 1974-05-21 Ibm Drive circuit for inductive load
GB2006995B (en) * 1977-09-26 1982-11-17 Citizen Watch Co Ltd Drive system for pulse motor
CH616813B (en) * 1977-12-28 Ebauches Sa ELECTRONIC WATCH PART WITH DETECTION SYSTEM OF END OF BATTERY LIFE.
DE2758853C2 (en) * 1977-12-30 1979-08-16 Dr. Johannes Heidenhain Gmbh, 8225 Traunreut Device for measuring the dimension, e.g. the width of a body
FR2458939A1 (en) * 1979-06-11 1981-01-02 Seiko Instr & Electronics Electronic watch circuit - ensures stepwise change of pulse width fed to motor using detector and corrective network
JPS5619473A (en) * 1979-07-27 1981-02-24 Citizen Watch Co Ltd Electronic timepiece
JPS5643575A (en) * 1979-09-18 1981-04-22 Seiko Instr & Electronics Ltd Electronic clock
DE2944872C2 (en) * 1979-11-07 1981-11-19 Gebrüder Junghans GmbH, 7230 Schramberg Arrangement for controlling a stepper motor for battery-operated devices
FR2471077A1 (en) * 1979-12-06 1981-06-12 Ebauches Sa REAL-TIME DETECTION WITH DYNAMIC ROTATION DETECTION FOR STEP-BY-STEP MOTOR
CH632383B (en) * 1980-04-16 Ebauchesfabrik Eta Ag ELECTRONIC WATCH PART.

Also Published As

Publication number Publication date
DE3276087D1 (en) 1987-05-21
US4467256A (en) 1984-08-21
JPS58144770A (en) 1983-08-29
EP0077293A1 (en) 1983-04-20
JPH0221757B2 (en) 1990-05-16
EP0077293B1 (en) 1987-04-15

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