US PATENT SUBCLASS 327 / 539
.~.~.~ Using bandgap

Current as of: June, 1999
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327 /   HD   MISCELLANEOUS ACTIVE ELECTRICAL NONLINEAR DEVICES, CIRCUITS, AND SYSTEMS

524  DF  SPECIFIC IDENTIFIABLE DEVICE, CIRCUIT, OR SYSTEM {22}
530  DF  .~ With specific source of supply or bias voltage {9}
538  DF  .~.~ Stabilized (e.g., compensated, regulated, maintained, etc.) {4}
539.~.~.~ Using bandgap

DEFINITION

Classification: 327/539

Using bandgap:

(under subclass 538) Subject matter wherein a bandgap voltage of a semiconductor material is provided as a reference to compensate for variations of the voltage supply.

(1) Note. Bandgap voltage is the difference in energy between the conduction band and the valence band in a semiconductor material (e.g., the bandgap voltage of silicon).