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A STEPPING MOTOR DAMPING SYSTEM

  • US 3,660,746 A
  • Filed: 06/09/1970
  • Issued: 05/02/1972
  • Est. Priority Date: 06/09/1970
  • Status: Expired due to Term
First Claim
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1. Control apparatus for a stepping motor comprising a plurality of energizable windings for advancing the rotor in response to the sequential energization of the stator windings, and circuit means for sequentially energizing the stator windings for advancing the rotor in response to the energization thereof, said circuit means including further circuit means for momentarily energizing all of the stator windings for a preselected time interval less than the time period required to advance the rotor from position to position and while the rotor is advancing from one position to the next, the preselected time interval being of a duration to electrically damp the rotor upon arrival at said next position.

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