Abstract
Conventional supply of d.c. motors is effected at constant voltage, and their behavior under these conditions is familiar. For still unsolved problems of starting, speed regulation and braking, this paper proposes a solution based on constant-current supply. The resulting behavior was analyzed for series-external and parallel-excitation respectively, with saturation of the magnetic circuit and the properties of the stabilized current supply taken into account. The experimental torque characteristics obtained in the course of the study indicate certain advantages of the stabilized-current starting and operation.
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