Method of analysing the voltage induced in an exciter coil...

Details Method of analysing the voltage induced in an exciter coil... Method of analysing the voltage induced in an exciter coil...

G - Physics

01

R

324/18

G01R 31/00 (2006.01) G04C 3/14 (2006.01) H02P 8/00 (2006.01) H02P 8/12 (2006.01)

Patent

CA 1220817

PHN. 10.413 19 ABSTRACT: A method is described for analysing the voltage induced in an exciter coil of a stepping motor. After energization the exciter coil is loaded by a low impedance so that the induction voltage can produce a current. Subsequently, it is attempted to maintain the current through said coil equal to zero by periodically connecting said coil to a positive or negative voltage. The pattern of consecutive polarities of these periodic energizations is analysed.

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