.~ Phase comparison (e.g., between cyclic pulse voltage and sinusoidal current, etc.) {11}
76.79
.~.~ Feedback control, electrical
DEFINITION
Classification: 324/76.79
Feedback control, electrical:
(under subclass 76.77) Subject matter having electrical means to control a return path from an output terminal to an input terminal of at least one functional circuit device or circuit.
SEE OR SEARCH CLASS
330, Amplifiers, appropriate subclasses for feedback, per se.