Method of analyzing the voltage induced in an exciter coil of a

Details Method of analyzing the voltage induced in an exciter coil of a Method of analyzing the voltage induced in an exciter coil of a

1986-08-27

1989-01-24

Karlsen, Ernest F.

Electricity: measuring and testing

Measuring, testing, or sensing electricity, per se

With rotor

318696, 368157, 377 28, 377 50, G01R 3102, G04F 500, G06F 104

Patent

active

048003344

ABSTRACT:
A method of analyzing 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 analyzed.

REFERENCES:
patent: 3742351 (1973-06-01), Palmer et al.
patent: 4346463 (1982-08-01), Tu Xuan et al.
patent: 4460282 (1984-07-01), Kanno
patent: 4467255 (1984-08-01), Tu Xuan
Berney, J.; Societe Suisse de Chronometrie; 56th Congress; Neuchatel; Oct. 23&24, 1981; Communication No. 27; Bulletin pp. 185-188.
Ohtawa et al.; Societe Suisse de Chronometrie; 56th Congress; Neuchatel; Oct. 23&24, 1981; Communication No. 11; Bulletin pp.79-84.

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