US PATENT SUBCLASS 388 / 847
.~.~ By voltage or current modification

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

842  DF  CLOSED LOOP ACCELERATION CONTROL SYSTEM FOR DC MOTOR WITH COMMUTATOR {2}
844  DF  .~ Armature control {1}
847.~.~ By voltage or current modification

DEFINITION

Classification: 388/847

By voltage or current modification:

(under subclass 844) Subject matter wherein the control circuit functions by determining the voltage or current relationship between a reference signal and a feedback signal and by applying an adjustment, based on this relationship, to the motor input.