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Open-loop step motor control system

  • US 6,016,044 A
  • Filed: 09/11/1995
  • Issued: 01/18/2000
  • Est. Priority Date: 09/11/1995
  • Status: Expired due to Term
First Claim
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1. A control system for controlling the movement of a motor, the system comprising:

  • an energy source providing an electrical current; and

    a controller that controls the energy source to provide an exponentially increasing winding current to the motor to begin movement of the motor,wherein the controller applies energy to the motor in a "one phase on" drive mode modified to microstep between the "one phase on" positions during movement of the motor, and wherein the controller controls the motor to accelerate by decreasing the number of microsteps per motor step while maintaining a constant microstep period.

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