US PATENT SUBCLASS 323 / 280
.~.~.~ With a specific feedback amplifier (e.g., integrator, summer)

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

234  DF  OUTPUT LEVEL RESPONSIVE {6}
265  DF  .~ Using a three or more terminal semiconductive device as the final control device {5}
273  DF  .~.~ Linearly acting {4}
280.~.~.~ With a specific feedback amplifier (e.g., integrator, summer)

DEFINITION

Classification: 323/280

With a specific feedback amplifier (e.g., integrator, summer):

(under subclass 273) Subject matter including a signal processing circuit between the means responsive to the output level and the final control device, the signal processing circuit including an amplifier in a feedback path, the amplifier including such elements as cascaded stages, summing junctions, or additional feedback circuitry.

SEE OR SEARCH CLASS

330, Amplifiers, appropriate subclasses for amplifiers, per se.