Method for slaving a stepping motor and arrangement for...

Details Method for slaving a stepping motor and arrangement for... Method for slaving a stepping motor and arrangement for...

G - Physics

04

C

58/0.5

G04C 3/00 (2006.01) G04C 3/14 (2006.01)

Patent

CA 1174060

METHOD FOR SLAVING A STEPPING MOTOR AND ARRANGEMENT FOR PRACTISING THE METHOD ABSTRACT OF THE DISCLOSURE A method for slaving a stepping motor proposes several levels of width of the control pulses U in order to adapt the couple 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 (figure 8) or within a gap Tx opened in the control pulse U if such pulse does exceed said pre- determined duration Tn (figure 11). The method may be applied to slaving stepping motors wherein the stator exhibits air gaps or saturable zones.

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