US PATENT SUBCLASS 388 / 828
.~ Armature control by digital or combined analog and digital circuitry

Current as of: June, 1999
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388 /   HD   ELECTRICITY: MOTOR CONTROL SYSTEMS

825  DF  OPEN LOOP SPEED CONTROL SYSTEM FOR DC MOTOR WITH COMMUTATOR {3}
828.~ Armature control by digital or combined analog and digital circuitry {1}
829  DF  .~.~> By pulse width or duty cycle modification

DEFINITION

Classification: 388/828

Armature control by digital or combined analog and digital circuitry:

(under subclass 825) Subject matter in which regulation of the running speed of the motor is effected by digital, or a combination of analog and digital, circuitry which controls the energization of an armature winding only.

(1) Note. See the Glossary in the class definition for the terms "digital" and "analog."