.~.~> With plural selectable speeds (e.g., manual switch)
DEFINITION
Classification: 388/826
Field control, or field and armature control:
(under subclass 825) Subject matter in which regulation of the running speed of the motor is effected by circuitry which controls the energization of, (1) a field winding of the motor, or (2) both a field winding and an armature winding.
(1) Note. In this subclass, and the subclasses indented hereunder, the control circuitry may function in either a digital mode or an analog mode or a combination of digital and analog modes. See the Glossary in the class definition for the terms "digital" and "analog."
SEE OR SEARCH THIS CLASS, SUBCLASS:
828+, for digital or combined analog and digital open loop running speed control system which control an armature winding only.
830+, for analog (only) open loop running speed control of armature (only) windings.
