US PATENT SUBCLASS 323 / 217
.~ Using a three or more terminal semiconductive device

Current as of: June, 1999
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323 /   HD   ELECTRICITY: POWER SUPPLY OR REGULATION SYSTEMS

212  DF  FOR PHASE SHIFT OR CONTROL {5}
217.~ Using a three or more terminal semiconductive device

DEFINITION

Classification: 323/217

Using a three or more terminal semiconductive device:

(under subclass 212) Subject matter wherein the element which produces the shift in phase is a transistor or semiconductor controlled rectifier.

SEE OR SEARCH THIS CLASS, SUBCLASS:

223, 265, 311, and 349, for solid-state devices used as final control elements in voltage or current regulators.