A method for calculating the single-step-response of 5-phase hybrid stepping motors is obtained. Effects of winding-connecting methods (1) star-bipolar SB, (2) pentagon PD and (3) new pentagon NP, on the single-step-response are investigated. By application of the above method, the continuous rotating characteristics are studied. It is clarified that the maximum slewing pulse rate of NP is higher than that of SB and PD connections, and that the variation of the rotor speed at high speed is large with SB and PD connections. Effects of the current wave form on the oscillation characteristics, and relation between the current wave form and the winding connections are investigated.
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