US PATENT SUBCLASS 318 / 613
.~.~.~ D.C. in A.C. windings

Current as of: June, 1999
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318 /   HD   ELECTRICITY: MOTIVE POWER SYSTEMS

560  DF  POSITIONAL SERVO SYSTEMS (E.G., SERVOMECHANISMS) {23}
611  DF  .~ With stabilizing features (e.g., anti-hunting, damping) {8}
612  DF  .~.~ Electric braking near balance (e.g., dynamic) {1}
613.~.~.~ D.C. in A.C. windings

DEFINITION

Classification: 318/613

(under subclass 612) Subject matter in which dynamic braking is achieved by introducing DC into the windings of an AC servo motor.

SEE OR SEARCH THIS CLASS, SUBCLASS:

211, for induction motor dynamic braking by DC in AC windings.