.~ Field control, or field and armature control, by digital or combined analog and digital circuitry
DEFINITION
Classification: 388/801
Field control, or field and armature control, by digital or combined analog and digital circuitry:
(under subclass 800) 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 energizing of, (1) a field winding of the motor, or (2) both a field winding and an armature winding.
(1) Note. See the Glossary in the class definition for the terms "digital" and "analog".
SEE OR SEARCH THIS CLASS, SUBCLASS:
803+, for analog (only) closed loop running speed control of field windings or of both field and armature windings.
809+, for digital or combined analog and digital closed loop running speed control systems which control an armature winding only.
