US PATENT SUBCLASS 323 / 343
.~.~.~ With a three or more terminal semiconductive device


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

318  DF  EXTERNAL OR OPERATOR CONTROLLED {5}
328  DF  .~ Using a transformer or inductor as the final control device {6}
340  DF  .~.~ Having a variable length winding (e.g., tapped) as the final control device {3}
343.~.~.~ With a three or more terminal semiconductive device


DEFINITION

Classification: 323/343

With a three or more terminal semiconductive device:

(under subclass 340) Subject matter including a transistor or SCR as part of a control circuit within the device or having a switching means connected to each tap, the switching means being a transistor or SCR.

SEE OR SEARCH THIS CLASS, SUBCLASS:

258, for transistors or SCRs used as tap switches in output

level responsive devices.