US PATENT SUBCLASS 323 / 292
.~.~ With a three or more terminal semiconductive device in control circuit

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

234  DF  OUTPUT LEVEL RESPONSIVE {6}
291  DF  .~ Using an electronic tube as the final control device {1}
292.~.~ With a three or more terminal semiconductive device in control circuit

DEFINITION

Classification: 323/292

With a three or more terminal semiconductive device in control circuit:

(under subclass 291) Subject matter including a signal processing circuit between the output level responsive means and the final control device, the signal processing circuit including a transistor or semiconductive controlled rectifier.