Digital communication link

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2006-09-12

2006-09-12

Fletcher, Marlon (Department: 2837)

Electricity: motive power systems

Limitation of motor load, current, torque or force

C318S068000, C318S132000, C318S254100, C318S471000

Reexamination Certificate

active

07106019

ABSTRACT:
A serial interface circuit electrically connected to a controller to control an electric motor. The interface circuit includes a controller circuit and a motor circuit. The controller circuit includes a transmitter and a receiver circuit, and the motor circuit includes a transmitter circuit and a receiver circuit. The interface interrogates the motor to acquire status and diagnostic information by receiving commands from the controller, adjusts a voltage level to a desired level, outputs the voltage signal to command and control the motor, and receives a voltage response from the motor.

REFERENCES:
patent: 5220255 (1993-06-01), Alford
patent: 5275012 (1994-01-01), Dage et al.
patent: 5410230 (1995-04-01), Bessler et al.
patent: 5485953 (1996-01-01), Bassett et al.
patent: 5492273 (1996-02-01), Shah
patent: 6262550 (2001-07-01), Kliman et al.

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