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Electric motor and control system

  • US 4,264,854 A
  • Filed: 06/28/1979
  • Issued: 04/28/1981
  • Est. Priority Date: 06/28/1979
  • Status: Expired due to Term
First Claim
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1. The combination of a motor and a control system, comprising:

  • an electrical motor, having a stator with a plurality of stator coils spaced at regular intervals, and a rotor mounted on a shaft and having a plurality of rotor coils spaced at regular intervals which may be different than the stator coil intervals;

    means for providing electrical signals to the stator coils;

    means for providing electrical signals to the rotor coils; and

    a plurality of phase shift means, each of which is respectively coupled to one of said stator coils and one of said rotor coils, there being one stator coil and one rotor coil to which no phase shift means is coupled, to effect phase displacement of the signals applied to each coil with respect to the signal applied to the adjacent coils.

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