Signal feedback > At least one push-pull signal stage > Patents

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Class Information
Number: 330/81
Name: Amplifiers > Signal feedback > At least one push-pull signal stage
Description: Subject matter including at least one stage of push-pull signal amplification.

Sub-classes under this class:

Class Number	Class Name	Patents
330/83	Including d.c. path for signal feedback	3
330/82	Positive and negative feedback	5

Patents under this class:

Patent Number	Title Of Patent	Date Issued
8022776	Origami cascaded topology for analog and mixed-signal applications	Sep. 20, 2011
6069503	High value FET resistors on a submicron MOS technology	May. 30, 2000
5604461	Transformerless output vacuum tube audio amplifier	Feb. 18, 1997
4321552	Amplifier comprising a first and a second amplifier element	Mar. 23, 1982
4112386	Modular radio frequency amplifier having a gain variable by external passive component selection	Sep. 5, 1978
4066975	Audio amplifier with improved stability	Jan. 3, 1978