Multiplexed stepper motor control apparatus

Details Multiplexed stepper motor control apparatus Multiplexed stepper motor control apparatus

1991-11-01

1993-08-17

Shoop, Jr., William M.

Electricity: motive power systems

Positional servo systems

Time-sharing or multiplexing systems

318 34, 318 41, 318 49, 318 67, H02P 900

Patent

active

052372502

ABSTRACT:
A multiplexor circuit connects a plurality of stepper motors to a lesser number of stepper motor drivers with at least one driver connected to a plurality of parallel connected stepper motors. A control computer through a multi-axis position controller generates step commands to the drivers to move one or more stepper motors a predetermined amount, at a predetermined speed and in a predetermined direction of rotation. The computer configures switches in the multiplexor circuit to connect selected ones of the stepper motors to selected drivers such that a plurality of stepper motors may be connected in parallel to a single driver such that a single driver can sequentially drive multiple stepper motors thereby reducing the number of drivers required for a plurality of stepper motors.

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