Method and apparatus for controlling multiple motors

Patent · Thu Jan 01 04:00:00 EST 1987

OSTI ID:866355

Jones, Rollin G ^[1]; Kortegaard, Bert L ^[1]; Jones, David F ^[1]

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1. Los Alamos, NM

A method and apparatus are provided for simultaneously controlling a plurality of stepper motors. Addressing circuitry generates address data for each motor in a periodic address sequence. Memory circuits respond to the address data for each motor by accessing a corresponding memory location containing a first operational data set functionally related to a direction for moving the motor, speed data, and rate of speed change. First logic circuits respond to the first data set to generate a motor step command. Second logic circuits respond to the command from the first logic circuits to generate a third data set for replacing the first data set in memory with a current operational motor status, which becomes the first data set when the motor is next addressed.

• Research Organization: Los Alamos National Laboratory (LANL), Los Alamos, NM
• DOE Contract Number: W-7405-ENG-36
• Assignee: United States of America as represented by United States (Washington, DC)
• Patent Number(s): US 4689541
• OSTI ID: 866355
• Country of Publication: United States
• Language: English

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