Interstage coupling > Transformer coupling > With transformer structure > Patents

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Class Information
Number: 330/171
Name: Amplifiers > Interstage coupling > Transformer coupling > With transformer structure
Description: Subject matter involving the structure of the transformer coupling the signal between the two cascaded stages.

Patents under this class:

Patent Number	Title Of Patent	Date Issued
7348845	System and method for employing variable magnetic flux bias in an amplifier	Mar. 25, 2008
6894616	Piezo-electric tag	May. 17, 2005
5710520	Pulse step modulator and transformer	Jan. 20, 1998
5164682	Two-port wideband bipolar transistor amplifiers	Nov. 17, 1992
4571554	Balanced amplifier device	Feb. 18, 1986
4565931	Isolated amplifier circuit for amplifying pulses, in particular for a high voltage output	Jan. 21, 1986
4490844	Low frequency transformer	Dec. 25, 1984
4124822	Isolation amplifier	Nov. 7, 1978