ハイブリッドステッピングモータの駆動回路と運転特性

概要

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The oscillatory behavior and the maximum slewing pulse rate of the hybrid stepping motor depends to a large extent on the type of drive circuit which is used. In this paper, four types of drive circuits are discussed, that is, (a) a diode in series connection with the winding (b) the diode in parallel with the winding (c) the diode and the zener diode in series and in parallel with the winding (d) a capacitor connection between two windings. The step response is calculated with connection (b) and compared with test data. It is shown that the step response has a close relation with the performance characteristics such as the oscillatory frequency and its amplitude. Considering this relationship, effects of the drive circuit on the oscillatory characteristics and the maximum slewing pulse rate are investigated.