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Class Information
Number: 330/97
Name: Amplifiers > Signal feedback > Including d.c. path for signal feedback
Description: Subject matter wherein the signal feedback path, from the output electrode of the amplifying device from which the signal feedback is derived to the input electrode of the amplifying device to which the signal feedback is applied, is a D.C.. conductive path.










Patents under this class:

Patent Number Title Of Patent Date Issued
7218175 Dynamic feedback linearization May. 15, 2007
6809596 DC offset cancellation circuit, system and method Oct. 26, 2004
6396934 Analog audio filter for high frequencies May. 28, 2002
6130582 Amplifier circuit including compensation circuitry for canceling variations in an amplifier feedback signal Oct. 10, 2000
5726794 DC bias controller for optical modulator Mar. 10, 1998
5304941 Sensor detection signal extracting circuit with offset voltage cancelling ability Apr. 19, 1994
5218320 Wideband amplifier circuit having automatic gain and offset voltage control Jun. 8, 1993
4918394 Audio frequency power amplifier with improved circuit topology Apr. 17, 1990
4633189 NF tone control circuit Dec. 30, 1986
4453131 Transformer coupled amplifier circuit Jun. 5, 1984
4387345 Precision gain AC coupled operational amplifier Jun. 7, 1983
3931582 Isolated DC amplifier circuit Jan. 6, 1976











 
 
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