FR2220919A1 - - Google Patents

Info

Publication number
FR2220919A1
FR2220919A1 FR7407068A FR7407068A FR2220919A1 FR 2220919 A1 FR2220919 A1 FR 2220919A1 FR 7407068 A FR7407068 A FR 7407068A FR 7407068 A FR7407068 A FR 7407068A FR 2220919 A1 FR2220919 A1 FR 2220919A1
Authority
FR
France
Legal status (The legal status 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 status listed.)
Granted
Application number
FR7407068A
Other languages
French (fr)
Other versions
FR2220919B1 (en
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Seiko Instruments Inc
Original Assignee
Seiko Instruments Inc
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 by Seiko Instruments Inc filed Critical Seiko Instruments Inc
Publication of FR2220919A1 publication Critical patent/FR2220919A1/fr
Application granted granted Critical
Publication of FR2220919B1 publication Critical patent/FR2220919B1/fr
Expired legal-status Critical Current

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
    • G04C3/16—Electromechanical clocks or watches independent of other time-pieces and in which the movement is maintained by electric means incorporating an electro-dynamic continuously rotating motor
    • 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
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
    • H02P8/00—Arrangements for controlling dynamo-electric motors of the kind having motors rotating step by step
    • H02P8/14—Arrangements for controlling speed or speed and torque
    • H02P8/16—Reducing energy dissipated or supplied
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
    • H02P8/00—Arrangements for controlling dynamo-electric motors of the kind having motors rotating step by step
    • H02P8/32—Reducing overshoot or oscillation, e.g. damping
FR7407068A 1973-03-07 1974-03-01 Expired FR2220919B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2610273A JPS6024680B2 (en) 1973-03-07 1973-03-07 Clock step motor drive circuit

Publications (2)

Publication Number Publication Date
FR2220919A1 true FR2220919A1 (en) 1974-10-04
FR2220919B1 FR2220919B1 (en) 1978-09-29

Family

ID=12184218

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7407068A Expired FR2220919B1 (en) 1973-03-07 1974-03-01

Country Status (5)

Country Link
JP (1) JPS6024680B2 (en)
CH (2) CH576164B5 (en)
DE (1) DE2409925C2 (en)
FR (1) FR2220919B1 (en)
GB (1) GB1434682A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2388330A1 (en) * 1977-04-23 1978-11-17 Seiko Instr & Electronics ELECTRONIC WATCH
FR2388325A1 (en) * 1977-04-23 1978-11-17 Seiko Instr & Electronics DEVICE FOR REDUCING THE CONSUMPTION OF AN ELECTRONIC WATCH
FR2388329A1 (en) * 1977-04-23 1978-11-17 Seiko Instr & Electronics ELECTRONIC WATCH MOVEMENT / R
FR2388326A1 (en) * 1977-04-23 1978-11-17 Seiko Instr & Electronics DEVICE FOR DETECTION OF CONDITIONS OF ROTATION OF THE MOTOR OF AN ELECTRONIC WATCH
FR2388328A1 (en) * 1977-04-23 1978-11-17 Seiko Instr & Electronics
EP0021320A1 (en) * 1979-06-21 1981-01-07 Societe Suisse Pour L'industrie Horlogere Management Services S.A. Operation detector for a 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

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5345575A (en) * 1976-10-06 1978-04-24 Seiko Epson Corp Electronic wristwatch
JPS5370876A (en) * 1976-12-07 1978-06-23 Seiko Instr & Electronics Ltd Electronic wristwatch
JPS53114467A (en) * 1977-03-16 1978-10-05 Seiko Instr & Electronics Ltd Electronic watch
JPS53136870A (en) * 1977-04-23 1978-11-29 Seiko Instr & Electronics Ltd Electronic watch
JPS53132386A (en) * 1977-04-23 1978-11-18 Seiko Instr & Electronics Ltd Electronic watch
JPS5477169A (en) * 1977-12-02 1979-06-20 Seiko Instr & Electronics Ltd Electronic watch
JPS55147381A (en) * 1979-05-04 1980-11-17 Seiko Instr & Electronics Ltd Detector for electronic watch
CH640999B (en) * 1980-08-25 Ebauchesfabrik Eta Ag METHOD AND DEVICE FOR CONTROLLING A STEP MOTOR OF AN ELECTRONIC CLOCK PART.
DE3043634A1 (en) * 1980-11-19 1982-06-03 Eurosil GmbH, 8000 München POLWENDER DRIVER CIRCUIT, FOR A STEPPING MOTOR, ESPECIALLY FOR WATCHES

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
NEANT *

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2388330A1 (en) * 1977-04-23 1978-11-17 Seiko Instr & Electronics ELECTRONIC WATCH
FR2388325A1 (en) * 1977-04-23 1978-11-17 Seiko Instr & Electronics DEVICE FOR REDUCING THE CONSUMPTION OF AN ELECTRONIC WATCH
FR2388329A1 (en) * 1977-04-23 1978-11-17 Seiko Instr & Electronics ELECTRONIC WATCH MOVEMENT / R
FR2388326A1 (en) * 1977-04-23 1978-11-17 Seiko Instr & Electronics DEVICE FOR DETECTION OF CONDITIONS OF ROTATION OF THE MOTOR OF AN ELECTRONIC WATCH
FR2388328A1 (en) * 1977-04-23 1978-11-17 Seiko Instr & Electronics
EP0021320A1 (en) * 1979-06-21 1981-01-07 Societe Suisse Pour L'industrie Horlogere Management Services S.A. Operation detector for a stepping motor
FR2459579A1 (en) * 1979-06-21 1981-01-09 Suisse Horlogerie ADVANCE DETECTOR OF A STEP BY STEP MOTOR
US4346463A (en) * 1979-06-21 1982-08-24 Societe Suisse Pour L'industrie Horlogere Management Services S.A. Movement detector for a 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
US4446413A (en) * 1981-03-18 1984-05-01 Asulab S.A. Method for reducing the consumption of a stepping motor and device for carrying out the method
EP0137093A2 (en) * 1981-03-18 1985-04-17 Asulab S.A. Method of measuring the voltage induced in the coil of a stepping motor by the rotation of its rotor
EP0137093A3 (en) * 1981-03-18 1985-05-29 Asulab S.A. Method of measuring the voltage induced in the coil of a stepping motor by the rotation of its rotor

Also Published As

Publication number Publication date
CH576164B5 (en) 1976-05-31
FR2220919B1 (en) 1978-09-29
JPS6024680B2 (en) 1985-06-14
DE2409925A1 (en) 1974-09-12
DE2409925C2 (en) 1982-09-16
CH323674A4 (en) 1975-12-31
JPS49114020A (en) 1974-10-31
GB1434682A (en) 1976-05-05

Similar Documents

Publication Publication Date Title
AR201758A1 (en)
AU476761B2 (en)
AU465372B2 (en)
AR201235Q (en)
AR201231Q (en)
AU474593B2 (en)
AU474511B2 (en)
AU474838B2 (en)
AU465453B2 (en)
AU471343B2 (en)
AU465434B2 (en)
JPS5067825A (en)
AU450229B2 (en)
AU476714B2 (en)
AR201229Q (en)
AU476696B2 (en)
AU472848B2 (en)
AR199451A1 (en)
AR195311A1 (en)
AR200885A1 (en)
AR201432A1 (en)
AU461342B2 (en)
AU471461B2 (en)
AR210729A1 (en)
AU477824B2 (en)