EP 0062273 B1 19860723 - METHOD OF CONTROLLING A STEPPING MOTOR
Title (en)
METHOD OF CONTROLLING A STEPPING MOTOR
Publication
Application
Priority
CH 216581 A 19810331
Abstract (en)
[origin: US4456866A] A method for slaving a stepping motor proposes several levels of width of the control pulses U in order to adapt the torque provided by the motor to the load imposed thereon. The method includes measurement of the induced voltage Ui during a time interval TUi situated immediately before the end of the control pulse U if the duration of such pulse does not exceed a predetermined duration Tn (FIG. 8) or within a gap Tx opened in the control pulse U if such pulse does exceed said predetermined duration Tn (FIG. 11). The method may be applied to slaving stepping motors wherein the stator exhibits air gaps or saturable zones.
IPC 1-7
IPC 8 full level
CPC (source: EP US)
G04C 3/143 (2013.01 - EP US)
Designated contracting state (EPC)
DE FR GB IT
DOCDB simple family (publication)
EP 0062273 A1 19821013; EP 0062273 B1 19860723; CA 1174060 A 19840911; CH 644983G A3 19840914; DE 3272080 D1 19860828; JP S57177296 A 19821030; US 4456866 A 19840626
DOCDB simple family (application)
EP 82102626 A 19820329; CA 399806 A 19820330; CH 216581 A 19810331; DE 3272080 T 19820329; JP 5476582 A 19820331; US 36199782 A 19820325