US PATENT SUBCLASS 330 / 251
.~ Including Class D amplifier

Current as of: June, 1999
Click HD for Main Headings
Click for All Classes

Internet Version by PATENTEC © 1999      Terms of Use


330 /   HD   AMPLIFIERS

250  DF  WITH SEMICONDUCTOR AMPLIFYING DEVICE (E.G., TRANSISTOR) {21}
251.~ Including Class D amplifier

DEFINITION

Classification: 330/251

Including class D amplifier:

(under subclass 250) Subject matter including an amplifier which utilizes switching-mode techniques.

SEE OR SEARCH THIS CLASS, SUBCLASS:

9, and 10, for amplifiers which may use switching amplifiers as a subcircuit thereof.

207, for amplifiers using switching-mode techniques.

SEE OR SEARCH CLASS

327, Miscellaneous Active Electrical Nonlinear Devices, Circuits, and Systems,

365+, for transistors used in a switching mode.