Actuator with motor and feedback driven by a common power supply

Details Actuator with motor and feedback driven by a common power supply Actuator with motor and feedback driven by a common power supply

1993-03-29

1995-02-14

Ro, Bentsu

Electricity: motive power systems

Positional servo systems

Time-sharing or multiplexing systems

318666, 318668, G05B 1116

Patent

active

053898648

ABSTRACT:
An actuator system has a motor and an output shaft connected to a potentiometer that provides shaft position information. The motor and potentiometer are electrically connected to a common power supply. A microcomputer controls the application of power to the motor and potentiometer so that feedback signals from the potentiometer, indicative of shaft position, can be read when desired without moving the shaft. The motor is prevented from moving either by setting both motor terminals high during a read, or by applying power pulses during a read which are too short in duration to allow the motor to start moving.

REFERENCES:
patent: 3254283 (1966-05-01), Hunt
patent: 3653059 (1972-03-01), Wade
patent: 3668503 (1972-06-01), Lindner
patent: 3743912 (1973-07-01), Mashimo

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