CH576164B5 - - Google Patents

Info

Publication number
CH576164B5
CH576164B5 CH323674A CH323674A CH576164B5 CH 576164 B5 CH576164 B5 CH 576164B5 CH 323674 A CH323674 A CH 323674A CH 323674 A CH323674 A CH 323674A CH 576164 B5 CH576164 B5 CH 576164B5
Authority
CH
Switzerland
Application number
CH323674A
Original Assignee
Seiko Instr & Electronics
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 Instr & Electronics filed Critical Seiko Instr & Electronics
Publication of CH576164B5 publication Critical patent/CH576164B5/xx

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 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 rotating step by step
    • H02P8/32—Reducing overshoot or oscillation, e.g. damping

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Control Of Stepping Motors (AREA)
  • Electromechanical Clocks (AREA)
CH323674A 1973-03-07 1974-03-07 CH576164B5 (enrdf_load_html_response)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2610273A JPS6024680B2 (ja) 1973-03-07 1973-03-07 時計用ステツプモ−タの駆動回路

Publications (1)

Publication Number Publication Date
CH576164B5 true CH576164B5 (enrdf_load_html_response) 1976-05-31

Family

ID=12184218

Family Applications (2)

Application Number Title Priority Date Filing Date
CH323674A CH576164B5 (enrdf_load_html_response) 1973-03-07 1974-03-07
CH323674D CH323674A4 (enrdf_load_html_response) 1973-03-07 1974-03-07

Family Applications After (1)

Application Number Title Priority Date Filing Date
CH323674D CH323674A4 (enrdf_load_html_response) 1973-03-07 1974-03-07

Country Status (5)

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

Families Citing this family (17)

* 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
JPS53132386A (en) * 1977-04-23 1978-11-18 Seiko Instr & Electronics Ltd Electronic watch
JPS53136870A (en) * 1977-04-23 1978-11-29 Seiko Instr & Electronics Ltd Electronic watch
JPS53132385A (en) * 1977-04-23 1978-11-18 Seiko Instr & Electronics Ltd Electronic watch
JPS53132382A (en) * 1977-04-23 1978-11-18 Seiko Instr & Electronics Ltd Electronic watch
JPS53132384A (en) * 1977-04-23 1978-11-18 Seiko Instr & Electronics Ltd Electronic watch
JPS53132383A (en) * 1977-04-23 1978-11-18 Seiko Instr & Electronics Ltd Electronic watch circuit
JPS53132381A (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
CH625384B (fr) 1977-12-20 Ebauches Electroniques Sa Dispositif de detection de la non rotation de moteurs pas a pas pour piece d'horlogerie et de rattrapage des pas perdus.
JPS55147381A (en) * 1979-05-04 1980-11-17 Seiko Instr & Electronics Ltd Detector for electronic watch
FR2459579A1 (fr) * 1979-06-21 1981-01-09 Suisse Horlogerie Detecteur d'avance d'un moteur pas a pas
CH640999B (fr) * 1980-08-25 Ebauchesfabrik Eta Ag Procede et dispositif de commande d'une moteur pas a pas de piece d'horlogerie electronique.
DE3043634A1 (de) * 1980-11-19 1982-06-03 Eurosil GmbH, 8000 München Polwender-treiberschaltung, fuer einen schrittmotor, insbesondere fuer uhren
CH644989GA3 (enrdf_load_html_response) * 1981-03-18 1984-09-14

Also Published As

Publication number Publication date
DE2409925A1 (de) 1974-09-12
JPS6024680B2 (ja) 1985-06-14
FR2220919B1 (enrdf_load_html_response) 1978-09-29
DE2409925C2 (de) 1982-09-16
CH323674A4 (enrdf_load_html_response) 1975-12-31
FR2220919A1 (enrdf_load_html_response) 1974-10-04
GB1434682A (en) 1976-05-05
JPS49114020A (enrdf_load_html_response) 1974-10-31

Similar Documents

Publication Publication Date Title
AR201758A1 (enrdf_load_html_response)
AU465372B2 (enrdf_load_html_response)
AR201235Q (enrdf_load_html_response)
AR201231Q (enrdf_load_html_response)
AU474593B2 (enrdf_load_html_response)
AU474511B2 (enrdf_load_html_response)
AU474838B2 (enrdf_load_html_response)
FR2220919B1 (enrdf_load_html_response)
AU471343B2 (enrdf_load_html_response)
AU465453B2 (enrdf_load_html_response)
AU465434B2 (enrdf_load_html_response)
AU450229B2 (enrdf_load_html_response)
AR201229Q (enrdf_load_html_response)
AU472848B2 (enrdf_load_html_response)
AU466283B2 (enrdf_load_html_response)
AR195311A1 (enrdf_load_html_response)
AU447540B2 (enrdf_load_html_response)
AU477824B2 (enrdf_load_html_response)
AU461342B2 (enrdf_load_html_response)
AR210729A1 (enrdf_load_html_response)
AU471461B2 (enrdf_load_html_response)
AR201432A1 (enrdf_load_html_response)
AU1891376A (enrdf_load_html_response)
CH564643A5 (enrdf_load_html_response)
BG22181A1 (enrdf_load_html_response)

Legal Events

Date Code Title Description
PL Patent ceased
PL Patent ceased